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2024-2025学年北师大版英语初三上学期模拟试题及解答参考一、听力部分(本大题有20小题,每小题1分,共20分)1、Listen to the following conversation and choose the best answer to the question you hear.Question: What is the weather like today?A. It’s sunny.B. It’s cloudy.C. It’s rainy.D. It’s windy.Answer: CExplanation: The conversation likely includes a statement about the rain, indicating that it is rainy today.2、Listen to the following short passage and answer the question.Question: Why does the man want to visit the art museum?A. He wants to see the new exhibition.B. He needs to pick up his friend there.C. He wants to study the art history.D. He has never been there before.Answer: AExplanation: In the passage, the man expresses his interest in the new art exhibition at the museum, which suggests that this is the reason for his visit.3、Listen to the conversation and choose the best answer to complete the sentence.W: Hey, John, how was your weekend?M: Oh, it was pretty good. I went hiking with my friends.Question: What did John do over the weekend?A. He went to the beach.B. He went hiking.C. He stayed home.D. He went shopping.Answer: BExplanation: In the conversation, John mentions that he went hiking with his friends, so the correct answer is B.4、Listen to the passage and answer the question.Passage: The school’s annual science fair is scheduled for next Friday. Students have been working hard on their projects for weeks. The fair will be held in the school gymnasium from 9 am to 3 pm. There will be presentations, experiments, and demonstrations by students from all grades. Refreshments will be available, and parents are welcome to attend.Question: When is the school’s annual science fair?A. This FridayB. Next MondayC. Next FridayD. This SundayAnswer: CExplanation: The passage clearly states that the science fair is scheduled for “next Friday,” making C the correct answer.5、Question: What does the speaker usually do after school?A) Play basketball.B) Watch TV.C) Read books.D) Go shopping.Answer: C) Read books.Explanation: The speaker mentions that they often go to the library after school to read books, which indicates that reading books is their usual activity after school.6、Question: What does the teacher say about the students’ homework?A) It’s too easy.B) It’s too difficult.C) It’s not finished yet.D) It’s not due until next week.Answer: C) It’s not finished yet.Explanation: The teacher expresses concern about the students’ homework, specifically mentioning that many of them haven’t finis hed it yet, indicating that it is not completed.7.Listen to the following dialogue and choose the best answer to complete the sentence.A: Hey, did you know that the school is hosting a science fair next month?B: Yes, I heard about it._____________it is a great opportunity for students to showcase their projects.A. ThatB. ItC. ThisD. ThoseAnswer: BExplanation: The correct answer is “It” because it refers back to the subject of the conversation, which is the science fair. “It” is used to avoid repetition and make the dialogue sound more natural.8.Listen to the following passage and answer the question.W: Good morning, everyone. Today, we are discussing the importance of physical education in schools. Regular physical activity is crucial for maintaining good health and well-being. It helps students develop strong bones and muscles, improves cardiovascular health, and enhances cognitive function. Therefore, it is essential for schools to allocate sufficient time for physicaleducation classes.M: That’s true. Moreover, physical activity can also help students reduce stress and improve their mental health. It’s a win-win situation for both the students and the school.Question: What is the main purpose of the passage?A. To promote the importance of physical education in schools.B. To discuss the benefits of regular physical activity.C. To explain how physical education can improve mental health.D. To compare the benefits of physical education and other subjects.Answer: AExplanation: The main purpose of the passage is to promote the importance of physical education in schools. The passage emphasizes the benefits of physical education and why it is crucial for maintaining good health and well-being.9、What is the relationship between the two speakers?A. Teacher and student.B. Doctor and patient.C. Shop assistant and customer.Answer: C.Explanation: In the dialogue, one speaker asks about the location of the shoes department, indicating they are shopping, and the other gives directions, suggesting they work at the store.10、Where does the conversation most likely take place?A. At a hospital.B. At a school.C. At a department store.Answer: C.Explanation: The mention of the shoes department implies that the conversation is happening in a retail setting such as a department store, rather than a hospital or school.11、(Audio clip describes a conversation about choosing elective courses for the upcoming semester.)Question: What elective course does Sarah prefer to take next semester?A. Advanced PhysicsB. Creative WritingC. World HistoryAnswer: B. Creative WritingExplanation: In the audio clip, Sarah mentions her excitement about improving her writing skills and her interest in exploring different forms of creative expression, indicating that she prefers to take the Creative Writing class.12、(Audio clip involves two students discussing their weekend plans.)Question: What activity do Tom and Lisa agree to do together on Saturday?A. Go to the moviesB. Visit a museumC. Play basketball at the parkAnswer: A. Go to the moviesExplanation: During their conversation, Tom suggests watching the latest superhero film, and Lisa enthusiastically agrees, confirming that they will meet at the cinema on Saturday afternoon.13.Listen to the dialogue and choose the best answer to the question you hear.A. They are discussing the weather.B. They are planning a trip.C. They are talking about their school life.Answer: BExplanation: The dialogue is about the two friends planning their summer trip together. They are discussing their destinations and activities.14.Listen to the passage and answer the question.Question: What does the speaker recommend for improving memory?A. Listening to music.B. Reading a book.C. Practicing mindfulness.Answer: CExplanation: The speaker recommends practicing mindfulness as a method to improve memory. The passage mentions that mindfulness exercises help inenhancing memory and concentration.15、Listen to the dialogue and choose the best answer to the question you hear. (Answer: B)(A) They will go to the park.(B) They will stay at home because of the rain.(C) They will visit their grandparents.Explanation: In this dialogue, two friends discuss their plans for the day. One friend suggests going to the park, but the other mentions that it is raining outside. They decide it’s best to stay home instead of going out in the bad weather.16、Listen to the short passage and choose the correct statement. (Answer:C)(A) The school trip was canceled due to lack of interest.(B) The students went to the museum last week.(C) The school trip to the museum has been rescheduled for next Friday.Explanation: In this passage, the principal announces over the intercom that the school trip planned for today had to be postponed due to unforeseen circumstances. However, the trip has now been rescheduled for the coming Friday. All students are reminded to bring their permission slips on time.17.You hear a conversation between two students, Tom and Lucy, discussing their weekend plans.Tom: “Hey Lucy, what are you planning to do this weekend?”Lucy: “I’m going to visit my grandparents in the countryside. How about you, Tom?”Tom: “I think I’ll stay home and work on my science project. I have a big dea dline next week.”Question: What is Tom going to do this weekend?A. Visit his grandparentsB. Go to the countrysideC. Work on his science projectD. Have a big deadlineAnswer: CExplanation: The answer is clear from Tom’s statement, “I think I’ll stay home and work on my science project.”18.You listen to a radio announcement about a local event.Announcer: “This Saturday, the city is hosting its annual art fair. The fair will take place in the downtown area from 10 am to 6 pm. There will be a variety of art exhibits, live music, and food vendors. This is a great opportunity to support local artists and enjoy a fun day out with your family and friends.”Question: What is the art fair?A. A music festivalB. A shopping eventC. An art exhibitD. A local eventAnswer: CExplanation: The answer is derived from the announcement, which describes the art fair as “a variety of art exhibits.”19、Where does the conversation most likely take place?A)In a hospitalB)At a schoolC)In a storeD)At a bus stopAnswer: B) At a schoolExplanation: The conversation mentions a classroom and an office where a child is being picked up, which are typical features of a school setting. The woman also refers to calling the classroom, which further indicates that the location is a school.Dialogue/Monologue 2 (for Question 20)Transcript:•Woman: Welcome to our library. Do you have a library card?•Man: Not yet. I just moved into the area and I’m trying to get one. CanI apply for it today?•Woman: Of course! We just need to see a piece of identification, like a driver’s license, and we’ll get you set up in no time. Also, we havea variety of books, magazines, and even audio books available.•Man: That sounds great. I love reading, so I think I’ll spend quite abit of time here.Question 20:20、What is the man doing at the beginning of the conversation?A)Returning a bookB)Applying for a library cardC)Looking for a jobD)Asking for directionsAnswer: B) Applying for a library cardExplanation: The man states that he has just moved to the area and is trying to get a library card, and the librarian confirms that he can apply for one. This makes it clear that the man is in the process of applying for a library card.二、阅读理解(30分)Title: The Power of a Single ActReading Passage:In a small town, there was a young boy named Timmy who loved to help others. One day, he noticed an elderly woman struggling to carry her groceries up a steep hill. Timmy, without hesitation, offered to help. The woman was grateful and shared her story with Timmy. She explained that she had recently lost her husband and felt overwhelmed by the challenges of daily life.Impressed by her resilience, Timmy decided to make it his mission to brightenher days. Every morning, he would visit her house to help with her morning routine, run errands, and simply spend time chatting. Gradually, the woman’s spirits lifted, and she began to feel less isolated.One day, Timmy received a letter in the mail. It was a heartfelt thank you from the woman, expressing her gratitude for all the help he had provided. Timmy was touched and realized the impact his small acts of kindness had made. He then decided to spread the joy further by starting a local community service group, encouraging others to join and perform random acts of kindness.The initiative caught on, and soon the town was filled with acts of kindness, from helping neighbors to volunteering at local shelters. Timmy’s story spread far and wide, inspiring people to make a difference in their own communities.Questions:1.What did Timmy notice one day in the town?A. A lost petB. An elderly woman struggling with her groceriesC. A missing posterD. A community service event2.How did Timmy initially help the elderly woman?A. He called for helpB. He bought her groceriesC. He carried her groceries up the hillD. He gave her a ride3.What was Timmy’s mission after helping the elderly woman?A. To find a new jobB. To write a book about his experiencesC. To make a documentary about the elderly womanD. To brighten her days and spread joy in the communityAnswers:1.B. An elderly woman struggling with her groceries2.C. He carried her groceries up the hill3.D. To brighten her days and spread joy in the community三、完型填空(15分)Sure, I can create a cloze test question suitable for a junior high school third-year student (Grade 9) using English that would align with the difficulty level expected in the Beijing Normal University Publishing Group’s curriculum. Here’s an example of a passage with five blanks, along with the answers:Cloze Test QuestionComplete the following passage by filling in each blank with the correct word or phrase.The winter holiday was coming, and Tom was excited about his plans to visit his grandparents in the countryside. He had been looking forward to this trip all year long. When he arrived, he noticed how fresh the air was compared to the city, and he enjoyed the peaceful 1 there. During the day, Tom helped hisgrandparents with small chores like feeding the chickens and collecting eggs. In the evening, they would gather around the fireplace and share stories about their lives. One night, his grandfather told him about a legend involving a magical tree that could grant wishes. The next morning, Tom set off on an adventure to find this 2 tree. After wandering through the woods for hours, he finally discovered it hidden behind a thick curtain of vines. Standing before the tree, Tom closed his eyes and made a wish. He wished for 3for his grandparents’ farm so they wouldn’t have to worry about their livelihood anymore. As soon as he opened his eyes, he noticed a small envelope attached to one of the branches. Inside was a note saying his wish had been granted. Overjoyed, Tom rushed back home to tell his grandparents the good news. His grandmother was delighted and gave him a warm hug. This 4 had not only brought happiness to Tom but also strengthened the bond between him and his grandparents. From then on, every time Tom visited the countryside, he would make sure to visit the magical tree and thank it for changing their 5.Answers:1.__serenity__2.__magical__3.__prosperity__4.__adventure__5.__lives__This passage aims to test vocabulary comprehension, context understanding,and the ability to infer meaning from the surrounding text. It is designed to be both engaging and educational.四、语法填空题(本大题有10小题,每小题1分,共10分)1、In the past, many people had to work__________long hours in factories.A. /B. tooC. soD. very答案:A解析:在本句中,由于没有明确的比较对象,所以使用“too…to…”结构表示否定含义,意为“太…以至于不能…”。
05网英语课课练答案Unit 1: Internet and Social MediaExercise 11. A2. C3. A4.They can connect with friends and family, share photos and videos, and discover new content.5.True6.False7.posting updates, sharing photos and videos, commenting on other people’s posts, liking or reacting to posts8.Social media can also be used for professional purposes, such as promoting businesses, networking with industry professionals, and sharing industry-related news and insights.Exercise 21.social media2.Internetworking4.personal information5.virtual6.online7.sharing8.privacyUnit 2: Technology and GadgetsExercise 11. B2. A3. C4. A smartphone is a mobile device that combines the functions of a phone, a computer, and other multimedia features, while a laptop is a portable computer with a built-in keyboard and monitor.5.True6.False7.touchscreens, internet connectivity, built-in cameras, social media applications, mobile gaming8.personal and professional communication, entertainment, productivity, navigation, photography, gamingExercise 21.smartphoneptop3.tablet4.smartwatch5.headphones6.gaming console7.camera8.fitness trackerUnit 3: Online LearningExercise 11. B2. C3. A4.Online learning allows students to access educational resources and materials from anywhere and at any time, offers flexibility in scheduling, promotes self-paced learning, and provides opportunities for interaction and collaboration with teachers and peers.5.True6.False7.video lectures, online quizzes and assignments, discussion forums, live virtual classes, virtual labs8.continued education and lifelong learning, access to a wide range of courses and instructors, opportunities for self-improvement, cost-effective alternative to traditional educationExercise 21.online learningcational resources3.flexibility4.self-paced5.interaction6.collaboration7.video lectures8.discussion forumsUnit 4: CybersecurityExercise 11. A2. B3. C4.Cybersecurity is the practice of protecting computers, servers, mobile devices, electronic systems, networks, and data from unauthorized access, attacks, and damage.5.True6.False7.strong and unique passwords, two-factor authentication, regular software updates, antivirus and firewall protection, safe browsing habits8.Protecting personal and sensitive information, preventing identity theft and financial fraud, safeguarding business and customer data, maintaining the integrity and availability of systems and networksExercise 21.cybersecurity2.unauthorized access3.attacks4.data5.passwords6.authentication7.software updates8.antivirusUnit 5: Online ShoppingExercise 11. B2. C3. B4.Online shopping allows customers to conveniently browse and purchase products and services from their homes or any location with an internet connection, offers a wide selection of products, provides competitive prices and discounts, and allows for easy price comparison.5.True6.False7.online marketplaces, e-commerce websites, search engines, customer reviews and ratings, secure payment options8.Convenience, wider product selection, competitive prices, easy pricecomparison, access to customer reviews and ratings, secure payment options Exercise 21.online shopping2.browse3.purchase4.internet connection5.selectionpetitive prices7.price comparison8.customer reviewsConclusionThis document provides the answers to the practice exercises in Unit 1 to Unit 5 of the online English course。
实验5 分支结构程序的设计1.程序填空题,不要改变与输入输出有关的语句。
20004 计算旅途时间输入2个整数time1和time2,表示火车的出发时间和到达时间,计算并输出旅途时间。
有效的时间范围是0000到2359,不需要考虑出发时间晚于到达时间的情况。
例:括号内是说明输入712 1411(出发时间是7:12,到达时间是14:11)输出The train journey time is 6 hrs 59 mins.import java.util.Scanner;public class Test20004 {public static void main(String[] args) {Scanner in=new Scanner(System.in);int time1, time2, hours, mins;time1=in.nextInt();time2=in.nextInt();/*------------------*//*计算两个时间之间的小时数和分钟数*/hours=time2/100-time1/100;mins=time2%100-time1%100;/*当计算得到的分钟数为负数时进行调整*/hours=mins>0?hours:hours-1;mins=mins>0?mins:mins+60;//或:if(mins<0){hours-=1;mins+=60;}System.out.println("The train journey time is "+hours+" hrs "+ mins+" mins.");}}30001 显示两级成绩输入一个正整数repeat (0<repeat<10),做repeat次下列运算:输入一个学生的数学成绩,如果它低于60,输出“Fail”,否则,输出“Pass”。
RVN4126 3.59100-386-9100-386/T DEVICERVN41772-CD2-3.5MCS/MTSRVN41821-CD2-3.5XTS3000/SABER PORTABLE YES RKN4046KHVN9085 3.51-20 R NO HLN9359 PROG. STAND RVN4057 3.532 X 8 CODEPLUG NO3080385B23 & 5880385B30 MDVN4965 3.59100-WS/T CONFIG KITRVN4053 3.5ASTRO DIGITAL INTERFACE NO3080385B23RVN41842-CD RKN4046A (Portable) 2-3.5ASTRO PORTABLE /MOBILE YES3080369B73 or0180300B10 (Mobile) RVN41831-CD3080369B732-3.5ASTRO SPECTRA MOBILE YES(Low / Mid Power)0180300B10 (High Power) RVN4185CD ASTRO SPECTRA PLUS MOBILE NO MANY OPTIONS; SEESERVICE BRIEF#SB-MO-0101RVN4186CD ASTRO SPECTRA PLUS MANY OPTIONS;MOBILE/PORTABLE COMB SEE SERVICE BRIEF#SB-MO-0101RVN4154 3.5ASTROTAC 3000 COMPAR.3080385B23RVN5003 3.5ASTROTAC COMPARATORS NO3080399E31 Adpt.5880385B34RVN4083 3.5BSC II NO FKN5836ARVN4171 3.5C200RVN4029 3.5CENTRACOM SERIES II NO VARIOUS-SEE MANUAL6881121E49RVN4112 3.5COMMAND PLUS NORVN4149 3.5COMTEGRA YES3082056X02HVN6053CD CT250, 450, 450LS YES AAPMKN4004RVN4079 3.5DESKTRAC CONVENTIONAL YES3080070N01RVN4093 3.5DESKTRAC TRUNKED YES3080070N01RVN4091 3.5DGT 9000 DESKSET YES0180358A22RVN4114 3.5GLOBAL POSITIONING SYS.NO RKN4021AHVN8177 3.5GM/GR300/GR500/GR400M10/M120/130YES3080070N01RVN4159 3.5GP60 SERIES YES PMLN4074AHVN9128 3.5GP300 & GP350RVN4152 3.5GP350 AVSRVN4150 3.5GTX YES HKN9857 (Portable)3080070N01(Mobile) HVN9025CD HT CDM/MTX/EX SERIES YES AARKN4083/AARKN4081RiblessAARKN4075RIBLESS NON-USA RKN4074RVN4098H 3.5HT1000/JT1000-VISAR YES3080371E46(VISAR CONV)RVN4151 3.5HT1000 AVSRVN4098 3.5HT1000/ VISAR CONV’L.YES RKN4035B (HT1000) HVN9084 3.5i750YES HLN-9102ARVN4156 3.5LCS/LTS 2000YES HKN9857(Portable)3080070N01(Mobile) RVN4087 3.5LORAN C LOC. RECV’R.NO RKN4021ARVN4135 3.5M100/M200,M110,M400,R100 includesHVN9173,9177,9646,9774YES3080070N01RVN4023 3.5MARATRAC YES3080070N01RVN4019 3.5MAXTRAC CONVENTIONAL YES3080070N01RVN4139 3.5MAXTRAC LS YES3080070N01RVN4043 3.5MAXTRAC TRK DUPLEX YES3080070N01RVN4178CD MC SERIES, MC2000/2500DDN6124AW/DB25 CONNECTORDDN6367AW/DB9 CONNECTOR RVN41751-CD Rib to MIC connector 1-3.5MCS2000 RKN4062BRVN41131-3.5MCS2000RVN4011 3.5MCX1000YES3000056M01RVN4063 3.5MCX1000 MARINE YES3000056M01RVN4117 3.5MDC/RDLAP DEVICESRVN4105 3.5MOBILE PROG. TOOLRVN4119 3.5MOBITEX DEVICESRVN4128 3.5MPT1327-1200 SERIES YES SEE MANUALRVN4025 3.5MSF5000/PURC/ANALOG YES0180355A30RVN4077 3.5MSF5000/10000FLD YES0180355A30RVN4017K 3.5MT 1000YES RTK4205CRVN4148 3.5MTR 2000YES3082056X02RVN4140 3.5MTRI 2000NORVN41761-CD MTS2000, MT2000*, MTX8000, MTX90001-3.5*programmed by DOS which is included in the RVN4176RVN4131 3.5MTVA CODE PLUG FIXRVN4142 3.5MTVA DOCTOR YES3080070N01RVN4131 3.5MTVA3.EXERVN4013 3.5MTX800 & MTX800S YES RTK4205CRVN4097 1-CD MTX8000/MTX9000,MTS2000,MT2000*,* programmed by DOS which is included in the RVN4176HVN9067CD MTX850/MTX8250MTX950,MTX925RVN4138 3.5MTX-LS YES RKN4035DRVN4035 3.5MX 1000YES RTK4203CRVN4073 3.5MX 800YES RKN4006BHVN9395 P100, P200 LB, P50+, P210, P500, PR3000RVN4134 3.5P100 (HVN9175)P200 LB (HVN9794)P50+ (HVN9395)P210 (HVN9763)P500 (HVN9941)PR3000 (HVN9586)YES RTK4205HVN9852 3.5P110YES HKN9755A/REX1143 HVN9262 3.5P200 UHF/VHF YES RTK4205RVN4129 3.5PDT220YVN4051 3.5PORTABLE REPEATER Portable rptr.P1820/P1821AXRVN4061C 3.5PP 1000/500NO3080385B23 & 5880385B30 RVN5002 3.5QUANTAR/QUANTRO NO3O80369E31RVN4135 3.5R100 (HVN9177)M100/M200/M110/M400YES0180358A52RVN4146 3.5RPM500/660RVN4002 3.5SABER YES RTK4203CRVN4131 3.5SETTLET.EXEHVN9007 3.5SM50 & SM120YESRVN4039 3.5SMART STATUS YES FKN5825AHVN9054 3.5SOFTWARE R03.2 P1225YES3080070N01HVN9001 3.5SOFTWARE R05.00.00 1225LS YES HLN9359AHVN9012 3.5SP50RVN4001N 3.5SPECTRA YES3080369B73 (STANDARD)0180300B10 (HIGH POWER) RVN4099 3.5SPECTRA RAILROAD YES3080369B73RVN4110 3.5STATION ACCESS MODULE NO3080369E31RVN4089A 3.5STX TRANSIT YES0180357A54RVN4051 3.5SYSTEMS SABER YES RTK4203BRVN4075 3.5T5600/T5620 SERIES NO3080385B23HVN9060CD TC3000, TS3000, TR3000RVN4123 3.5VISAR PRIVACY PLUS YES3080371E46FVN4333 3.5VRM 100 TOOLBOX FKN4486A CABLE &ADAPTORRVN4133 3.5VRM 500/600/650/850NORVN4181CD XTS 2500/5000 PORTABLES RKN4105A/RKN4106A RVN41002- 3.5XTS3000 ASTRO PORTABLE/MOBILERVN4170 3.5XTS3500YES RKN4035DRIB SET UPRLN4008E RADIO INTERFACE BOX (RIB)0180357A57RIB AC POWER PACK 120V0180358A56RIB AC POWER PACK 220V3080369B71IBM TO RIB CABLE (25 PIN) (USE WITH XT & PS2)3080369B72IBM TO RIB CABLE (9 PIN)RLN443825 PIN (F) TO 9 PIN (M) ADAPTOR (USE W/3080369B72 FOR AT APPLICATION) 5880385B308 PIN MODULAR TO 25 PIN ”D” ADAPTOR (FOR T5600 ONLY)0180359A29DUPLEX ADAPTOR (MOSTAR/TRAXAR TRNK’D ONLY)Item Disk Radio RIB Cable Number Size Product Required Number Item Disk Radio RIB Cable Number Size Product Required NumberUtilizing your personal computer, Radio Service Software (RSS)/Customer Programming Software (CPS)/CustomerConfiguration Software (CCS) enables you to add or reprogram features/parameters as your requirements change. RSS/CPS/CCS is compatible with IBM XT, AT, PS/2 models 30, 50, 60 and 80.Requires 640K RAM. DOS 3.1 or later. Consult the RSS users guide for the computer configuration and DOS requirements. (ForHT1000, MT/MTS2000, MTX838/8000/9000, Visar and some newer products —IBM model 386, 4 MEG RAM and DOS 5.0 or higher are recommended.) A Radio Interface Box (RIB) may be required as well as the appropriate cables. The RIB and cables must be ordered separately.Licensing:A license is required before a software (RVN) order is placed. The software license is site specific (customer number and ultimate destination tag). All sites/locations must purchase their own software.Be sure to place subsequent orders using the original customer number and ship-to-tag or other licensed sites; ordering software without a licensed customer number and ultimate tag may result in unnecessary delays. To obtain a no charge license agreement kit, order RPX4719. To place an order in the U.S. call 1-800-422-4210. Outside the U.S., FAX 847-576-3023.Subscription Program:The purchase of Radio ServiceSoftware/Customer Programming/Customer ConfigurationSoftware (RVN & HVN kits) entitles the buyer/subscriber to three years of free upgrades. At the end of these three years, the sub-scriber must purchase the same Radio Service Software kit to receive an additional three years of free upgrades. If the sub-scriber does not elect to purchase the same Radio Service Software kit, no upgrades will be sent. Annually a subscription status report is mailed to inform subscribers of the RSS/CPS/CCS items on our database and their expiration dates.Notes:1)A subscription service is offered on “RVN”-Radio Service Software/Customer Programming/Customer Configuration Software kits only.2)“RVN” software must only be procured through Radio Products and Services Division (RPSD). Software not procured through the RPSD will not be recorded on the subscription database; upgrades will not be mailed.3)Upgrades are mailed to the original buyer (customer number & ultimate tag).4)SP software is available through the radio product groups.The Motorola General Radio Service Software Agreement is now available on Motorola Online. If you need assistance please feel free to submit a “Contact Us” or call 800-422-4210.SMART RIB SET UPRLN1015D SMART RIB0180302E27 AC POWER PACK 120V 2580373E86 AC POWER PACK 220V3080390B49SMARTRIB CABLE (9 PIN (F) TO 9 PIN (M) (USE WITH AT)3080390B48SMARTRIB CABLE (25 PIN (F) TO 9 PIN (M) (USE WITH XT)RLN4488ASMART RIB BATTERY PACKWIRELESS DATA GROUP PRODUTS SOFTWARERVN4126 3.59100-386/9100T DEVICES MDVN4965 3.59100-WS/T CONFIG’TN RVN41173.5MDC/RDLAP DEVICESPAGING PRODUCTS MANUALS6881011B54 3.5ADVISOR6881029B90 3.5ADVISOR ELITE 6881023B20 3.5ADVISOR GOLD 6881020B35 3.5ADVISOR PRO FLX 6881032B30 3.5BR8506881032B30 3.5LS3506881032B30 3.5LS5506881032B30 3.5LS7506881033B10 3.5LS9506881035B20 3.5MINITOR III8262947A15 3.5PAGEWRITER 20008262947A15 3.5PAGEWRITER 2000X 6881028B10 3.5TALKABOUT T3406881029B35 3.5TIMEPORT P7308262947A15 3.5TIMEPORT P930NLN3548BUNIVERSAL INTERFACE KITItem Disk Radio NumberSize Product。
四川省成都市2024-2025年师大一中(初一上)半期考试卷姓名:__________ 考号:__________英语留意事项:1.全卷分为A卷和B卷,A卷满分100分,B卷满分50分;考试时间120分钟。
2.在作答前,考生务必将自己的姓名,考号及班级涂写在试卷和答题卡规定的位置。
考试结束后,监考人员将答题卡收回。
3.选择题部分必需运用2B铅笔填涂;非选择题部分必需运用0.5毫米黑色签字笔书写,字体工整、笔迹清晰。
4.请依据题号在答题卡上各题目对应的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试卷上答题均无效。
5.保持答题卡清洁,不得折叠、污染、破损等。
A卷(共100分)第一部分听力(共30小题;计30分)一、听句子,依据所听到的内容选择正确答语。
每小题念两遍。
(共6小题,每小题1分;计6分)1. A. Good evening. B. Thanks. C. And you?2. A. Black. B. OK. C. Mr. Black.3. A. They’re fine. Thanks. B. Yes, they are. C. He’s my grandpa..4. A. Yes. They are his. B. No, they aren’t. C. Yes, it is.5. A. It’s red. B. It’s hers. C. It’s on the sofa.6. A. He’s my uncle. B. It’s my pen. C. She’s my aunt.二、听句子,选择与所听句子相符的图片,并将代表图片的字母填涂在答题卡的相应位置。
每小题念两遍。
(共4小题,每小题1分;计4分)A B C D7.________ 8. ________ 9. ________ 10. ________三、听对话,依据对话内容及问题选择正确答案。
每小题念两遍。
(共10小题,每小题1分;计10分)11. A. It’s white. B. It’s blue. C. It’s black.12. A. Cindy. B. Sally. C. Helen.13. A. The keys. B. The books. C. A and B.14. A. 358-1467. B. 524-3389. C. 356-1467.15. A. The notebook. B. The eraser. C. The tape.16. A. It’s in the bag. B. It’s on the bed. C. It’s under the bed..17. A. Ms. Wang. B. Mr. Wang. C. Mike and Tom.18. A. Pencils.B. Pens.C. A watch and an ID card.19. A. Paul’s sister. B. Sally’s sister. C. Sally’s friend.20. A. Grace. B. Coco. C. Floppy.四、听短文,依据短文内容选择正确答案。
1you might think. Its rooms are filled with objects that are clues to the character of kings and queens past. And the art and arc hitecture combine to make a statement about Britain’s place in the world. (101 words) 现在你有一分钟的准备时间。
Now you have ONE minute to practise reading. 现在请对照原文,再听一遍录音。
Now listen to the speaker once again. And try to read after the speaker. 现在开始录音。
Now read as the speaker in the video. (解析:视频总长66秒;字数:101 words ;语速:155-160 words per minute ;语音:女声英音非原声;题材:建筑类;句子分析:全为陈述句;视频比去年清晰。
) Part B Role Play In this part, you are required to act as a role and complete three communicative tasks: listen to a speaker, ask the speaker three questions and then answer five questions. Now 开始提问。
Now please ask the speaker three questions. Y ou have twenty seconds to prepare the question. When you hear a beep, begin to ask the question.1. 在将来的教室里互联网有什么用? Question: What is the use of the Internet in the future classroom? / What is the Internet for in the future classroom? / What role will the Internet play in the future classroom? Answer: The Internet is the place for students to get information from. It is so easy to get information because you can find what you need within seconds.2. 将来学生如何参加考试? Question: How will students take exams in the future? Answer: Students can take exams on the Internet, and exams will be automatically marked by the computer, not by their teachers. What’s more, students will be tested on how to use information rather than knowing information. However, I actually don’t know whether that’s good or bad and whether it’s going to happen.3. 将来学生需要学习什么?Question: What will students need to study/ learn in the future? / What is necessary forstudents to learn/ study in the future?2Answer: The Internet.现在请准备回答第四个问题。
20 series studio microphonesA T2050Multi-pattern Condenser Side-Address MicrophoneFeatures• Designed for critical home/project/professional studioapplications and live performance• Three switchable polar patterns: omni, cardioid, figure-of-eight• Dual-diaphragm capsule design maintains precise polar patterndefinition across the full frequency range of the microphone• Dual large diaphragms are gold-vaporized and aged to achieveoptimum characteristics over years of use• Rugged design and construction for reliable performance• Included shock mount provides superior isolation• Integral 80 Hz high-pass filter switch and 10 dB pad switch• State-of-the-art design and manufacturing techniques ensurecompliance with A-T’s stringent consistency and reliabilitystandardsDescriptionThe AT2050 is a large-diaphragm side-address externally polarized(DC bias) condenser microphone with three switchable polar patterns:omnidirectional, cardioid, and figure-of-eight. It is designed for home/project/professional studio applications and live performance.The microphone requires 11V to 52V phantom power for operation.The omnidirectional polar pattern is sensitive to sound coming fromall directions. Select the omni pattern to pick up several voices orinstruments on the same microphone, to diminish proximity effect, andto preserve the location’s ambient sound.The cardioid polar pattern is more sensitive to sound originating directlyin front of the element, making it useful in controlling feedback, reducingpickup of unwanted sounds and providing isolation between performers.The figure-of-eight polar pattern is more sensitive to sound originating inthe front and back of the microphone, rejecting sounds from the sides.It is often used in conjunction with advanced stereo miking techniques.The output of the microphone is a 3-pin XLRM-type connector.The microphone is equipped with a switchable 10 dB pad and a switchthat permits choice of flat response or low-frequency roll-off (via integral80 Hz high-pass filter).The microphone is enclosed in a rugged housing. The included AT8458shock mount provides superior isolation and permits mounting on anymicrophone stand with 5/8"-27 threads. A soft protective pouch is alsoincluded.Operation and MaintenanceThe AT2050 requires 11V to 52V phantom power for operation.Output is low impedance (Lo-Z) balanced. The signal appears across Pins2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot”—positiveacoustic pressure produces positive voltage at Pin 2.To avoid phase cancellation and poor sound, all mic cables must be wiredconsistently: Pin 1-to-Pin 1, etc.An Audio-Technica emblem and the pattern-selection switch are on thefront of the microphone. Position this side of the microphone toward thesound source.The pattern-selection switch provides user-selection of omnidirectional,cardioid, and figure-of-eight polar patterns. To select the omnidirectionalpolar pattern, slide the switch to the circular polar pattern image. Toselect the cardioid polar pattern, slide the switch to the heart-shapedpolar pattern image. To select the figure-of-eight pattern, slide the switchto the figure-eight shaped polar pattern image.An integral 80 Hz high-pass filter provides easy switching from a flatfrequency response to a low-end roll-off. The roll-off position reduces themicrophone’s sensitivity to popping in close vocal use. It also reducesthe pickup of low-frequency ambient noise (such as traffic, air-handlingsystems, etc.), room reverberation and mechanically coupled vibrations.To engage the high-pass filter, slide the switch toward the “bent” line.The microphone is also equipped with a switchable 10 dB pad that lowersthe microphone's sensitivity, thus providing higher SPL capability forflexible use with a wide range of users and system configurations. Toengage the 10 dB pad, slide the switch toward the -10 position.In use, secure the cable to the mic stand or boom, leaving a slack loop atthe mic. This will ensure the most effective shock isolation and reducethe possibility of accidentally pulling the microphone out of its mount.Avoid leaving the microphone in the open sun or in areas wheretemperatures exceed 110° F (43° C) for extended periods. Extremely highhumidity should also be avoided.Architect’s and Engineer’s SpecificationsThe microphone shall be a large-diaphragm side-address externallypolarized (DC bias) condenser with user-switchable omnidirectional,cardioid, and figure-of-eight polar patterns and a frequency response of20 Hz to 20,000 Hz. The microphone shall operate from an external 11Vto 52V DC phantom power source. It shall be capable of handling soundinput levels up to 149 dB (159 dB with 10 dB pad) with a dynamic rangeof 132 dB. Nominal open-circuit output voltage shall be 7.9 mV at 1V, 1Pascal. Output shall be low impedance balanced (120 ohms).The output of the microphone shall be a 3-pin XLRM-type connector.The microphone shall be equipped with a switchable 10 dB pad, a switchthat permits choice of flat response or 80 Hz low-frequency roll-off, and apolar pattern selection switch.A T2050Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224Audio-Technica Limited, Old Lane, Leeds LS11 8AG England ©2010 Audio-Technica U.S., Inc. 0001-0202-01Specificationscardioid frequency response: 20–20,000 Hzomni frequency response: 20–20,000 Hzfigure-of-eight frequency polar patternpolar patternpolar patternExternally polarized (DC bias) condenser Cardioid, Omnidirectional, Figure-of-eight 20-20,000 Hz80 Hz, 12 dB/octave–42 dB (7.9 mV), re 1V at 1 Pa 120 ohms149 dB SPL, 1 kHz at 1% T.H.D.;159 dB SPL, with 10 dB pad (nominal)17 dB SPL132 dB, 1 kHz at Max SPL 77 dB, 1 kHz at 1 Pa11-52V DC, 4.7 mA typical Polar selection; Flat, roll-off; 10 dB pad (nominal)412 g (14.5 oz)170.0 mm (6.69") long,52.0 mm (2.05") maximum body diameter Integral 3-pin XLRM-type R5Element Polar patterns Frequency response Low frequency roll-off Open circuit sensitivityImpedanceMaximum input sound level Noise 1Dynamic range (typical) Signal-to-noise ratio 1Phantom power requirementsSwitchesWeight DimensionsOutput connectorAudio-Technica case styleThe microphone shall be 170.0 mm (6.69") long and have a maximum body diameter of 52.0 mm (2.05"). Weight shall be 412 grams (14.5 oz). The microphone shall include a shock mount and a soft protective pouch.The Audio-Technica AT2050 is specified.461。
英语初级听力参考答案lesson5英语初级听力参考答案Lesson 5听力练习一:日常对话理解1. 问题:What does the man want to buy?答案:The man wants to buy a cup of coffee.2. 问题:What time does the woman suggest to meet?答案:The woman suggests meeting at 3:00 PM.3. 问题:Why is the man late?答案:The man is late because he missed the bus.4. 问题:What is the weather like today?答案:It is sunny and warm today.5. 问题:Where are the speakers going after school?答案:The speakers are going to the library after school. 听力练习二:短文理解短文内容:Today is a beautiful day. The sun is shining, and the birds are singing. Mary and John are planning to go to the park. Mary wants to have a picnic, and John wants to play soccer. They decide to meet at the park at noon. Mary is bringing sandwiches and fruit, while John is bringing a soccer balland a frisbee.1. 问题:What is the weather like according to the passage?答案:The weather is beautiful with the sun shining and birds singing.2. 问题:What are Mary and John planning to do?答案:Mary and John are planning to go to the park.3. 问题:What time are they meeting at the park?答案:They are meeting at the park at noon.4. 问题:What is Mary bringing for the picnic?答案:Mary is bringing sandwiches and fruit.5. 问题:What is John bringing to the park?答案:John is bringing a soccer ball and a frisbee.听力练习三:数字和时间听力材料:The train leaves at 5:45 PM. The bus number 37 arrives every 20 minutes. The flight number 207 is scheduled to depart at 7:30 AM. The store opens at 9:00 AM and closes at 6:00 PM.1. 问题:When does the train leave?答案:The train leaves at 5:45 PM.2. 问题:How often does the bus number 37 arrive?答案:The bus number 37 arrives every 20 minutes.3. 问题:What is the departure time of flight number 207?答案:Flight number 207 is scheduled to depart at 7:30 AM.4. 问题:What time does the store open?答案:The store opens at 9:00 AM.5. 问题:What time does the store close?答案:The store closes at 6:00 PM.听力练习四:地点和方向听力材料:The library is located on the corner of Elm Street and Oak Street. To get to the library, you need to turn left at the first traffic light and then right at the next intersection. The museum is across from the library. The bank is two blocks down Elm Street from the library.1. 问题:Where is the library located?答案:The library is located on the corner of Elm Street and Oak Street.2. 问题:What is the direction to the library?答案:To get to the library, turn left at the firsttraffic light and then right at the next intersection.3. 问题:Where is the museum in relation to the library?答案:The museum is across from the library.4. 问题:How far is the bank from the library?答案:The bank is two blocks down Elm Street from thelibrary.5. 问题:What is the name of the street where the bank is located?答案:The bank is located on Elm Street.听力练习五:综合理解听力材料:Tom is a student who lives in a small town. He usually goes to school by bike. Today, he has a doctor's appointment at 2:00 PM. After the appointment, he plans to go to the bookstore to buy a new novel. The bookstore is next to the post office.1. 问题:How does Tom usually go to school?答案:Tom usually goes to school by bike.2. 问题:What is Tom's plan for today?答案:Today, Tom has a doctor's appointment at 2:00 PM and plans to go to the bookstore to buy a new novel.3. 问题:When is Tom's doctor。
考试时间:120分钟满分:100分一、选择题(共30分,每题2分,共15题)1. Hello, how are you today?A. Hello, you are good.B. Hello, I'm fine, thank you.C. Hello, I'm sorry, I'm not well.D. Hello, nice to meet you.2. Where is the nearest supermarket?A. It is on the left.B. It is on the right.C. It is behind us.D. It is in front of us.3. She is a teacher. She teaches us English.A. She is a teacher, she teaches us Chinese.B. She is a teacher, she teaches us math.C. She is a teacher, she teaches us science.D. She is a teacher, she teaches us music.4. I have a cat. It is black and white.A. I have a dog. It is brown and white.B. I have a bird. It is red and blue.C. I have a fish. It is yellow and green.D. I have a rabbit. It is purple and pink.5. The sun rises in the east and sets in the west.A. The moon rises in the east and sets in the west.B. The stars rise in the east and set in the west.C. The clouds rise in the east and set in the west.D. The wind rises in the east and sets in the west.6. My birthday is on June 15th.A. My friend's birthday is on July 20th.B. My mother's birthday is on August 10th.C. My father's birthday is on September 5th.D. My sister's birthday is on October 12th.7. I like to play soccer.A. I like to play basketball.B. I like to play volleyball.C. I like to play tennis.D. I like to play chess.8. How much is this book?A. It is $5.B. It is $10.C. It is $15.D. It is $20.9. I will go to school by bus tomorrow.A. I will go to school by car tomorrow.B. I will go to school by train tomorrow.C. I will go to school by bike tomorrow.D. I will go to school by plane tomorrow.10. What time is it?A. It's 8:00.B. It's 9:00.C. It's 10:00.D. It's 11:00.11. My favorite food is pizza.A. My favorite food is sushi.B. My favorite food is pasta.C. My favorite food is curry.D. My favorite food is hamburger.12. She is a student. She is in Grade 8.A. She is a teacher. She is in Grade 7.B. She is a doctor. She is in Grade 9.C. She is a lawyer. She is in Grade 10.D. She is a nurse. She is in Grade 11.13. It's a sunny day.A. It's a rainy day.B. It's a cloudy day.C. It's a windy day.D. It's a snowy day.14. He is tall and strong.A. He is short and weak.B. He is thin and tall.C. He is fat and short.D. He is thin and short.15. I have two brothers and one sister.A. I have one brother and two sisters.B. I have three brothers and no sisters.C. I have no brothers and two sisters.D. I have two brothers and no sisters.二、完形填空(共20分,每题2分,共10题)My name is Tom. I live in Wujian Town, Wujian District. I am a studentin Wujian Middle School. I have a good family. My parents are both teachers. My brother is a doctor, and my sister is a nurse.Every morning, I wake up at 6:30. I have breakfast at 7:00 and then go to school. School starts at 8:00 and ends at 4:30. After school, I do my homework and then play soccer with my friends. In the evening, I have dinner with my family and watch TV.On weekends, I like to go to the library to read books. I also like to visit my grandparents in the countryside. They live in a small village. It is very peaceful there.I have many friends at school. We study together and help each other. We also have fun together. I like my school and my life here very much.16. Tom lives in _______.A. Wujian TownB. Wujian DistrictC. Wujian Middle SchoolD. Wujian Library17. Tom's parents are _______.A. teachersB. doctorsC. nursesD. engineers18. Tom goes to school at _______.A. 6:30B. 7:00C. 8:00D. 4:3019. Tom's favorite sport is _______.A. basketballB. soccerC. tennisD. swimming20. Tom likes to visit his grandparents in _______.A. the cityB. the countrysideC. the libraryD. the hospital三、阅读理解(共20分,每题2分,共10题)Once upon a time, there was a small village in China. The village was very beautiful. There were many trees and flowers. The people in the village were very friendly.One day, a man came to the village. He was a traveler. He wanted to stay in the village for a few days. The villagers were happy to welcome him. They showed him around the village and introduced him to their friends.The traveler was very impressed by the beauty of the village. He also liked the kindness of the people. He decided to stay longer than he had planned. He stayed in the village for a month.During his stay, the traveler helped the villagers. He built a bridge over a river, and he also planted trees. The villagers were verygrateful to him. They invited him to their homes for dinner.When the traveler left the village, the villagers were sad. But they were also happy. They knew that they would see him again. They promised to visit him in his home country.21. Where did the traveler come from?A. ChinaB. Another countryC. The villageD. The city22. Why did the traveler stay in the village?A. He was tired.B. He wanted to help the villagers.C. He wanted to see the beauty of the village.D. He wanted to meet new people.23. What did the traveler do for the villagers?A. He taught them English.B. He built a bridge and planted trees.C. He gave them money.D. He showed them around the village.24. How long did the traveler stay in the village?A. A few days.B. A week.C. A month.D. A year.25. What did the villagers do when the traveler left?A. They were sad.B. They were happy.C. They were angry.D. They were indifferent.四、短文改错(共10分,每题2分,共5题)My favorite animal is the tiger. It is a big cat and lives in the forest. Tigers are very strong and powerful. They have yellow fur and black stripes. They have sharp claws and big teeth. They can run very fast.Tigers are also very clever. They can hunt for their food. They eat meat. Tigers usually hunt at night. They catch their prey with their sharp claws and kill them with their big teeth.Tigers are an endangered species. They are losing their natural habitat. People are hunting them for their fur and bones. We should protect them and stop hunting them.1. __________2. __________3. __________4. __________5. __________五、写作(共20分)Write a short paragraph about your favorite place in your hometown. Describe what it looks like, what you do there, and why you like it.(请在此处开始写作)。
江苏省苏州市园区第十中学2025届初三考前热身练习英语试题注意事项1.考试结束后,请将本试卷和答题卡一并交回.2.答题前,请务必将自己的姓名、准考证号用0.5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置.3.请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符.4.作答选择题,必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑;如需改动,请用橡皮擦干净后,再选涂其他答案.作答非选择题,必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答,在其他位置作答一律无效.5.如需作图,须用2B铅笔绘、写清楚,线条、符号等须加黑、加粗.Ⅰ. 单项选择1、.—Jack, , or you will get heavier. —Ok, I will have a try.A.doesn't play sports any more B.doesn't eat so much meatC.don't play sports any more D.don't eat so much meat2、Whenever you feel like criticizin g______, just remember that not all the people in this world have the advantages that you’ve had.A.someone B.anyone C.no one D.everyone3、— Daisy, go and see what is happening to the windows.— Nothing serious. The heavy rain is beating them.A.against B.across C.through D.above4、Get up early, John. you will be late for the class.A.And B.But C.So D.Or5、–– What are you looking for?––I’m looking for the book _______ you bought last Sunday.A.who B.when C.that6、— Why do you prefer lemons to orange?— Because they taste ________.A.soft B.sour C.sweet D.terrible7、I get up ______ seven o’clock every morning.A.in B.on C.of D.at8、Spud Webb has influenced me most. His stories give me much to face all kinds of difficulties.A.luck B.wealth C.courage D.decision9、―Don’t eat too much snacks. It’s bad for health. ―_______.A.Sorry, I won’t.B.Sure, I will C.Never mind D.OK. I don’t.10、— Li Hong, football to our school subjects next term.—Great! It’s my favorite. I can’t wait.A.was added B.is added C.will be added11、I was waiting in a long line at a cafe. In front of me 1 a mom with a little boy about 5 years old. A police car drove by the cafe and suddenly the boy came to life. He shouted excitedly, “Mom, it’s the police and they 2 be looking for us.” The mom looked embarrassed. Then she 3 , “Someone took my son’s bicycle from our yard last night. He offered help by 4 what his bike looked like while the police officer wrote the report. Now he thinks all the policemen in the city are 5 his bike.” The crowd chuckled(偷笑)a bit.The mom and the boy bought something and left. I 6 from my table as they walked out of my sight. 7 , I could not get the boy out of my mind. I thought about 8 this just might be his first lesson in reality(现实)—there are “bad guys” in the world and 9 probably won’t ever find his bike.I finished my 10 and then drove to a local store and bought a bike. I followed the streets and soon caught up with them. “Are you the young man whose bike was stolen?” The little boy looked at me and nodded, “Yes.” I got down to his11 , looking him in the eye and said, “Sometimes bad things happen. But sometimes good things happen too. That’s12 . Keep your new bike 13 your house, OK?” I drove a way, seeing the mom and the son still looking at each other 14 . He then had a big smile on his face.Do good and don’t ever stop doing good, so the world will be full of 15 . You see, something so little can be worth so much.1.A.came B.stood C.entered D.lived2.A.should B.could C.must D.can’t3.A.stopped B.laughed C.cried D.explained4.A.describing B.talking C.recalling D.reflecting5.A.looking up B.running after C.searching for D.dealing with6.A.reviewed B.learned C.pulled D.watched7.A.Instead B.However C.Also D.Still8.A.how B.why C.where D.what9.A.his mother B.the crowd C.the stuff D.the police10.A.coffee B.work C.paper D.journey11.A.height B.weight C.age D.build12.A.truth B.mystery C.life D.fault13.A.inside B.far from C.next to D.outside14.A.silently B.surprisedly C.sadly D.nervously15.A.courage B.friendship C.spirit D.warmth12、Just like football, basketball is one of the 1.(popular) sports in the world.The game of the basketball2.(go) a long way since its first game on December 21, 1891. At the beginning the game wasn’t played very 3.(wide ),because students played 4.game inside when the weather outside became too cold for sports. Now basketball 5.(play) in many different countries around the world. Fans of basketball love playing the games in allseasons---spring, summer, fall, winter.Ⅳ. 阅读理解A13、Do you want to know something about children in Africa? What do they do for fun every day? Find out here:EducationSchool is expensive for many African childr en. Lots of families can’t afford school uniforms or exercise books even though they don’t have to pay for school.For those lucky enough to go to school, they have a lot to learn. Some take two language classes: English or French, and their first language s. There is also math, science, history and geography.____take up much of children’s time after school. They have to get water and firewood for the family every day. Also there’s cleaning, washing and helping Mum with the meal.Daily funIt’s not all work and no play. Sports are very popular. Children can make goals with twigs(嫩枝) and their own footballs with plastic and bits of string(绳子).They play in the country and the streets of old towns. There’re many football teams for teenagers in Africa.InternetI t’s really expensive to get on the Internet. To surf the net for 20 hours costs 600yuan.This is more than the average(平均的)monthly pay per person.Egypt and South Africa are the top two users of the Internet in Africa. All of the capital cities there can get on the Internet. Some schools offer computer lessons but few students can enjoy computer fun at home.1.The underlined word “Chores”probably means______.A.网上冲浪B.家务杂活C.体育活动D.家庭作业2.Sports are very popular in Africa because children_______.A.do not need money to play B.can play all kinds of ball gamesC.don’t like to go to school D.don’t like to do their homework3.In Africa ,how many hours can you use all your pay to surf the Internet in a year .And you only have the average pay. A.20 hours B.more than 240 hoursC.about 240 hours D.about 20 hours14、Chinese scientists called on all over the country to fight against serious water pollution in China yesterday.Following days of heavy haze(雾霾)that influenced most parts of China earlier this year polluted water is becoming another big worry among people on popular social InternetWebsites have called for cutting down water pollution in necessary ways.“We should not only protect water,but also pay attention to water pollution,”said X ue Manzi,a well-known investor(投资人)on Sina Weibo.“Dead pigs are found in rivers and waster is poured into rivers and underground.”said Xue.The Huangpu River provider 22 percent of Shanghai’s drinking water.But earlier this momth,thousands of dead pigs were found in it.This made people scared and worried,although local government tried to showthat the water was safe.In February,some factories in Weifang in Shandong had put waste water underground,polluting the local drinking water.“Clean water and air are necessary for people to live. A responsible government will strictly protect the environment from being polluted,”said a microblogger.Isn’t it time for us to have a better thinking about our living environment?Do we want to kill ourselves by serious pollut ion? All the companies should have a serious sense of responsibility.The health of people is far more important than money! 1.Chinese scientists called on the people in China to fight against serious .A.land pollution B.air pollution C.water pollution D.white pollution2.made people in Shanghai worried according to the second paragraph.A.The heavy haze B.The polluted riverC.The polluted drinking water D.The local government3.How did some factories in Weifang deal with the waste water?A.Waste water was put underground.B.Waste water was put in big pools carefully.C.Waste water was dealt with in a green way.D.Waste water was reused by the factories themselves.4.What is the main idea of this passage?A.Dead pigs were found in the Huangpu River.B.We should fight against water pollution seriously.C.Some factories put waste water underground.D.Heavy haze influenced China earlier this year.C15、This weekend a marathon ( 马拉松) took place in Salzburg. I admired the runners who ran 42.2 kilometers for over four hours. But I've never run for more than half an hour.At university I play korfball. This is a team sport with eight people on each team. The aim is to shoot ( 投篮) the ball into the hoop. All players get a chance to attack ( 攻) and defend ( 守) during the game and it's very fast. When I started korfball, I wasn't very good at it. I could throw and catch but I wasn't very fast on my feet. Shooting was also difficult for me. However, I really enjoyed the sport and made friends in the club, so I went training twice a week. Two years later I am in the first team for my university and have played in many matches. This just shows if you train hard, you can succeed.Running is difficult because you have to make yourself willing to keep going. I used to get really out of breath while running and I didn't feel good at all! Now I actually enjoy going for a run along the river in Salzburg, feeling my muscles ( 肌肉) working and breathing in the fresh air.Challenging exercise is always worth doing. Hiking is fun because all the hard work—walking uphill comes at the beginning of the day, then at the top of the mountain you can enjoy the view. At the end of the day you feel like you've really achieved something.I will never be a marathon runner, but I would like to try a 10-km run sometime, or perhaps even a half-marathon. How happy the runners were as they crossed the finishing line! I'd like to have that feeling—the months of training paying off as you achieve your goal.1.What did the writer think of running the marathon at first?A.Difficult. B.Strange. C.Enjoyable. D.Exciting.2.When the writer started korfball, he couldn't .A.catch and throw a ball B.catch and shoot a ballC.move quickly while playing D.catch the ball from teammates3.Why does the writer think challenging exercise is worth doing?A.It helps him make lots of friends. B.It gives him a sense of achievement.C.It makes him become a marathon runner. D.It helps him get to the top of the mountain.D16、Dr Swift was a famous man. Near his house lived a rich old lady who often sent him some presents by her servant, Dr Swifthit the desk, and some books on it began to fail to the floor. Then he threw a plastic bag of meat on the desk and said, "My mistress has sent you some meat."Swift turned round and said, "My boy, that is not the way to give someone a present. Now you sit in my chair, watch my way of doing it and learn your lesson."The boy sat down. Swift went out, knocked on the door and waited. The boy said, "Come in." The doctor entered, walked to the desk and said, "If you please, sir, my mistress sends me to say hello to you and hopes you will take the plastic bag of meat." The boy answered, "Thank you, my boy. Give your mistress Dr Swift's thanks for her kindness, and here is two shillings for yourself." The doctor laughed and after that, Swift never forgot to give him his tip.1.What do we know about the old lady?A.She didn't know Dr Swift.B.She liked Dr Swift very much.C.She lived far from Dr Swift's house.D.She often sent Dr Swift some presents herself.2.What did Dr Swift want to do to the boy?A.He wanted to have the boy do something for him.B.He wanted to teach the boy how to write.C.He wanted to ask the boy to watch his way of working.D.He wanted to teach the boy how to give someone a present.3.What did the boy show the doctor?A.How to help others. B.What to do when in trouble.C.What to do for his mistress. D.What to do when receiving a present.4.What would Dr Swift do after that?A.Welcome the boy.B.Invite the boy to have supper with him.C.Remember to tip the boy.D.Remember to say "Thank you" to the boyE17、Traffic police nationwide have all stepped up their efforts to crack down(处罚) on drunk driving, CCTV reporter Paul Crowe takes a look at their moves in major cities.1.What does the word“wandering”mean in Chinese?A.疑惑的B.猜疑的C.错乱的D.愤怒的2.Who will stay in prison for half a year?A.The driver from Huan’nan. B.The driver from Hebei. C.The driver from Nanjing. D.Driver Liu.3.Why were the three drivers caught by the traffic police? A.They drove too fast. B.They killed some people. C.They had no license. D.They drove after drinking.F18、1.Which is the smallest island country? A.Nauru.B.Tuvalu.C.Vatican.D.Monaco.2.What’s the area of Vatican?A.21 km².B.26 km².C.3.44 km².D.2 km².4.Which of the following about Monaco is TRUE?B.It’s the most difficult place to get to.C.It has the most overweight people in the world.D.It’s the world’s most densely populated country.Ⅴ.书面表达19、2017 年一月份江苏省文明办等单位开展“百名美德少年”的评选表彰活动。
课堂优化指南针七年级下册英语答案全文共3篇示例,供读者参考篇1Classroom Optimization Guide for Grade 7 English Answer KeyUnit 1: My Day1. Listeninga. 1. A 2. B 3. A 4. B 5. Ab. 1. history 2. art 3. math 4. science 5. English2. Speakinga. 1. What subjects do you have on Monday? 2. What do you do after school? 3. Do you like math or science better? 4. What time do you have lunch? 5. How many days are there in a week?3. Readinga. 1. F 2. T 3. F 4. T 5. T4. Writinga. 1. My daily routineOn weekdays, I usually get up at 7 o'clock in the morning. Then, I have breakfast and go to school at 8 o'clock. I have six subjects on Monday, including math, English, science, history, art, and PE. After school, I do my homework and have dinner with my family. I go to bed around 10 o'clock. On weekends, I like to play basketball with my friends and watch movies in the evening. I enjoy my daily routine a lot.b. (Sample answer)Unit 2: Hobbies1. Listeninga. 1. B 2. A 3. C 4. B 5. Ab. 1. playing the piano 2. playing basketball 3. drawing pictures 4. dancing 5. fishing2. Speakinga. 1. What is your hobby? 2. How often do you play basketball? 3. Do you like drawing pictures? 4. When did you start dancing? 5. Why do you enjoy fishing?3. Readinga. 1. F 2. T 3. T 4. F 5. Ta. 1. My favorite hobbyMy favorite hobby is playing the piano. I started learning to play when I was six years old. I practice for an hour every day after school. I like playing classical music because it is beautiful and relaxing. I have participated in several music competitions and won a few awards. Playing the piano is a big part of my life, and I love it.b. (Sample answer)Unit 3: Health1. Listeninga. 1. B 2. A 3. C 4. A 5. Cb. 1. eat healthy food 2. exercise regularly 3. get enough sleep 4. drink lots of water 5. avoid junk food2. Speakinga. 1. What do you do to stay healthy? 2. How many hours of sleep do you get each night? 3. Do you like to eat fruits and vegetables? 4. Why is it important to exercise regularly? 5. What is your favorite healthy snack?a. 1. F 2. T 3. T 4. F 5. T4. Writinga. 1. Tips for staying healthyTo stay healthy, it is important to eat a balanced diet, exercise regularly, get enough sleep, and drink lots of water. Eating healthy food such as fruits, vegetables, and whole grains can provide essential nutrients for our bodies. Regular exercise helps to keep our bodies strong and fit. Getting enough sleep is crucial for our overall well-being. Drinking plenty of water helps to keep us hydrated and energized. It is also important to avoid junk food and sugary drinks. By following these tips, we can maintain a healthy lifestyle.b. (Sample answer)Unit 4: Environment1. Listeninga. 1. C 2. A 3. B 4. C 5. Bb. 1. reduce, reuse, recycle 2. plant trees 3. save water 4. pick up trash 5. use public transportationa. 1. What can we do to protect the environment? 2. Why is it important to plant trees? 3. How can we save water at home? 4. Have you ever participated in a beach clean-up? 5. What are the benefits of using public transportation?3. Readinga. 1. T 2. F 3. F 4. T 5. T4. Writinga. 1. Ways to protect the environmentThere are several ways we can protect the environment and make our planet a better place to live. We can start by following the three Rs – reduce, reuse, and recycle. By reducing our waste, reusing items whenever possible, and recycling materials, we can help conserve resources and minimize pollution. Planting trees is another way to protect the environment as they absorb carbon dioxide and produce oxygen. Saving water is essential for sustainability, so we should fix leaks, take shorter showers, and use water-saving appliances. Picking up trash and using public transportation are also effective ways to reduce waste and air pollution. By taking these actions, we can contribute to a healthier and cleaner environment.b. (Sample answer)Unit 5: Technology1. Listeninga. 1. B 2. A 3. C 4. B 5. Ab. 1. smartphones 2. tablets 3. laptops 4. smartwatches 5. video games2. Speakinga. 1. What technology devices do you use daily? 2. How has technology changed our lives? 3. Do you think smartphones are useful or distracting? 4. Have you ever played video games? 5. What is your favorite app?3. Readinga. 1. F 2. T 3. T 4. F 5. T4. Writinga. 1. The impact of technologyTechnology has significantly changed the way we live and communicate in today's world. We rely on devices such as smartphones, tablets, laptops, and smartwatches for various tasks and activities. These gadgets have made our lives moreconvenient and efficient, allowing us to stay connected with others and access information instantly. While technology offers many benefits, it also has its drawbacks. Some people argue that smartphones can be distracting and addictive, leading to increased screen time and reduced face-to-face interactions. Video games are another form of technology that can be both entertaining and time-consuming. Despite these concerns, technology continues to advance rapidly, enabling us to accomplish more and expand our capabilities. It is essential to use technology responsibly and balance its use with other activities for a healthy lifestyle.b. (Sample answer)Unit 6: Travel1. Listeninga. 1. B 2. A 3. C 4. B 5. Ab. 1. Italy 2. Japan 3. Australia 4. France 5. Brazil2. Speakinga. 1. Have you ever traveled to a foreign country? 2. Where would you like to visit next? 3. What type of food do you enjoy trying while traveling? 4. Do you prefer to stay in a hotel or a hostel? 5. What are some benefits of traveling?3. Readinga. 1. T 2. F 3. T 4. F 5. T4. Writinga. 1. Dream travel destinationMy dream travel destination is Japan. I have always been fascinated by Japanese culture, traditions, and technology. I would love to explore the bustling city of Tokyo, visit historical temples in Kyoto, and relax in the natural hot springs of Hokkaido. One of the highlights of my trip would be trying authentic Japanese cuisine such as sushi, ramen, and tempura. I am also interested in attending traditional tea ceremonies, watching sumo wrestling matches, and learning martial arts. Japan offers a unique blend of modernity and tradition, making it a perfect travel destination for me. I hope to visit Japan one day and experience its beauty and hospitality firsthand.b. (Sample answer)Unit 7: Festivals1. Listeninga. 1. C 2. B 3. A 4. C 5. Ab. 1. Chinese New Year 2. Diwali 3. Christmas 4. Carnival 5. Eid al-Fitr2. Speakinga. 1. What festivals do you celebrate in your country? 2. Have you ever participated in a cultural festival? 3. What is your favorite holiday tradition? 4. Do you enjoy attending festive ceremonies? 5. Why are festivals important to people?3. Readinga. 1. T 2. F 3. F 4. T 5. T4. Writinga. 1. Importance of festivalsFestivals play a significant role in celebrating cultural traditions, bringing communities together, and fostering a sense of belonging. They are occasions for people to commemorate special events, religious ceremonies, and historical milestones. Festivals often feature festive decorations, music, dances, and traditional foods that reflect the unique identity of a culture. People participate in various activities and rituals during festivals to honor their heritage and values. Festivals also provide opportunities for social interactions, entertainment, and enjoyment. They promote unity, diversity, and mutualunderstanding among individuals of different backgrounds. By celebrating festivals, people can preserve their cultural heritage and pass down customs and rituals to future generations. Festivals are an integral part of human society and contribute to the richness and vibrancy of our global community.b. (Sample answer)Overall, this Classroom Optimization Guide provides comprehensive answer keys for the Grade 7 English textbook to help students enhance their learning experience and maximize their academic performance. By completing the listening, speaking, reading, and writing exercises in each unit, students can improve their language skills, expand their vocabulary, and develop a deeper understanding of the topics covered in the curriculum. The guide also includes sample answers to guide students in constructing coherent and well-structured responses. With the support of this guide, students can effectively prepare for assessments, engage in class discussions, and achieve success in their English studies.篇2Classroom Optimization Guide: 7th Grade English AnswersWelcome to the Classroom Optimization Guide for 7th Grade English! In this document, you will find the answers to the exercises and activities in the 7th Grade English textbook. This guide is designed to help students and teachers make the most out of their English lessons and ensure that learning is effective and enjoyable. Let's dive into the answers for the 7th Grade English textbook:Unit 1: My School Day1. Fill in the blanks:a) 8:15b) breakc) mathsd) lunche) sciencef) 14:452. Answer the questions:a) We have maths in the morning.b) Yes, we have lunch at 12:30.c) No, we don't have science on Monday.3. True or False:a) Trueb) Falsec) TrueUnit 2: My Family1. Match the words:a) grandfatherb) sisterc) auntd) unclee) cousin2. Complete the sentences:a) My father has two brothers and one sister.b) I have one sister and one brother.c) My aunt lives in London.3. Write about your family:(Student's own answer)Unit 3: My Hobbies1. Answer the questions:a) I like playing football and painting.b) Yes, I do. I have a guitar.c) No, I don't have a skateboard.2. Complete the sentences:a) She enjoys swimming.b) They love reading books.c) I prefer watching movies.3. Write about your hobbies: (Student's own answer)Unit 4: My Daily Routine1. Fill in the blanks:a) brushb) breakfastc) walkd) schoole) dinnerf) bed2. Answer the questions:a) Yes, I wake up at 6:30.b) No, I have breakfast at 7:00.c) Yes, I go to bed at 10:00.3. True or False:a) Trueb) Falsec) TrueThis guide provides the answers to the exercises and activities in the 7th Grade English textbook. By using this guide, students can check their answers and understand the material better. Remember, practice makes perfect, so keep reviewing and improving your English skills. Good luck with your studies!篇3Classroom Optimization Guide: 7th Grade English AnswersWelcome to the Classroom Optimization Guide for 7th Grade English! In this document, you will find answers to the exercises and activities in the 7th Grade English textbook. It is important to remember that these answers are just a guide to help you check your work and improve your understanding of the material. It is always best to first try to solve the problems on your own before consulting the answers. Let's get started!Unit 1: Family and Friends1. Complete the sentences with the correct possessive adjectives.- This is my book.- Our house is big.- His parents are doctors.- Her sister is a teacher.- Their dog is very friendly.2. Fill in the blanks with the correct form of the verb to be.- I am a student.- You are my friend.- He is tired.- She is happy.- We are at the park.3. Write the plural form of the following words.- Child -> children- Woman -> women- Man -> men- Person -> people- Mouse -> miceUnit 2: School Life1. Match the words with their definitions.- Biology: the study of living organisms- Geography: the study of Earth's physical features - Physics: the study of matter and energy- History: the study of past events- Math: the study of numbers, quantities, and shapes 2. Write the correct form of the verb in parentheses. - I always (enjoy) math class.- She often (play) soccer after school.- They never (forget) to do their homework.- He usually (help) his classmates with their assignments.- We sometimes (go) to the library together.Unit 3: Hobbies and Interests1. Complete the sentences with the correct hobbies or activities.- My hobby is reading books.- She enjoys painting landscapes.- They love playing video games.- His favorite activity is fishing.- Our friends like hiking in the mountains.2. Fill in the blanks with the correct form of the verb.- I (read) a book every night before bed.- She (dance) in a dance club on weekends.- They (watch) movies on Fridays.- He (play) the guitar very well.- We (swim) in the pool during the summer.Unit 4: Travel and Adventure1. Match the countries with their capitals.- France: Paris- Japan: Tokyo- Brazil: Brasilia- Australia: Canberra- Egypt: Cairo2. Answer the questions with the correct information.- What is the capital of Spain? Madrid.- Which country is known for its beautiful beaches? Thailand.- Where is the Great Wall of China located? China.- What is the currency used in Italy? Euro.- Which city is famous for its canals? Venice.Unit 5: Health and Wellness1. Complete the sentences with the correct health-related vocabulary.- I exercise regularly to stay fit.- She eats a balanced diet to stay healthy.- They drink plenty of water to stay hydrated.- He gets enough sleep to feel rested.- We practice good hygiene to prevent illness.2. Fill in the blanks with the correct form of the verb.- I (run) five miles every morning.- She (eat) vegetables and fruits every day.- They (drink) herbal tea before bedtime.- He (sleep) at least eight hours each night.- We (wash) our hands before every meal.These are just a few examples of the types of questions and exercises you may encounter in your 7th Grade English class. It is important to study and practice regularly in order to improve your language skills. Remember to always ask your teacher for help if you are struggling with any concepts. Good luck with your studies!。
小学下册英语第5单元期中试卷英语试题一、综合题(本题有100小题,每小题1分,共100分.每小题不选、错误,均不给分)1.What do you call a small, round fruit that is usually red or green?A. OrangeB. AppleC. BananaD. Pear答案:B2.The process of making ice cream involves ______.3.What do we call the time it takes for one full rotation of the Earth?A. DayB. MonthC. YearD. Hour答案:A4.Chemical changes often involve the formation of ________.5.My friend, ______ (我的朋友), is a great storyteller.6.My cousin is a ______. She loves to create content.7.I enjoy planting _____ in the garden.8.My sister is a _____ (演员) who stars in plays.9.The _____ (树木) help reduce air pollution.10.What is the largest mammal in the ocean?A. SharkB. DolphinC. WhaleD. Octopus答案:C Whale11.What do you call someone who helps you learn?A. TeacherB. DoctorC. LawyerD. Chef12.What is 10 3?A. 7B. 8C. 6D. 5答案:A13.What is the name of the famous landmark in Sydney?A. Opera HouseB. Harbour BridgeC. Bondi BeachD. Uluru答案:A14.I have a special ______ (玩具车) that I keep on my desk.15.I like to _______ (画画) animals.16.The capital of Japan is _______.17.I have _____ stickers in my album. (many)18.What is the color of grass?A. BlueB. YellowC. GreenD. Brown答案:C19.What is a common pet that barks?A. BirdB. CatC. DogD. Fish20. A chemical reaction that produces a gas is called a ______ reaction.21.My favorite animal is a ______ (猫) because they are gentle.22.The ancient Romans utilized ________ (混凝土) in their construction.23.What color is an orange?A. BlueB. GreenC. YellowD. Orange答案:D24.The _______ is a great way to learn about nature.25.I spotted a _______ (小鸟) in the bush.26.I like to draw pictures for my ____.27.My sister enjoys __________ (参加) creative workshops.28.What do you call the large landmass where we live?A. CityB. CountryC. ContinentD. Island答案:C29.What is the main ingredient in a pizza?A. DoughB. SauceC. CheeseD. All of the above30.What do we call the study of the mind and behavior?A. BiologyB. PsychologyC. SociologyD. Anthropology答案:B31.salinity) of seawater affects marine life. The ____32.My sister loves to play with her ________.33.古代的________ (traditions) 在不同的文化中有着独特的表现。
指南针英语八年级下册半期试卷答案全文共6篇示例,供读者参考篇1Compass English 8th Grade Second Semester Exam AnswersHey there! I'm just a regular 8th grader trying to pass my English exam for the second half of the Compass English textbook. I have to admit, some of those reading passages and questions were pretty tricky. But I gave it my best shot, and I'll share my answers with you in case they can help you out too!Reading Comprehension Passage 1:This one was about a girl named Maya who went on a camping trip with her family. Some of the vocab was challenging, like "kindled" for building the campfire. But the main idea was that even though Maya was nervous at first, she ended up really enjoying being out in nature.Why was Maya apprehensive about the camping trip at first?My answer: She had never been camping before and wasn't sure what to expect.What did Maya's father teach her?He taught her how to set up the tent and build a campfire safely.How did Maya's feelings change by the end of the trip?At first she was anxious, but by the end she appreciated the beauty of nature and wanted to go camping again.Those comprehension questions really make you pay attention to the details! Okay, next passage...Reading Comprehension Passage 2:This one discussed the history and cultural significance of the Chinese dragon dance. It explained how the colorful dragon costumes are operated by dancers holding poles, and the dance is performed during Chinese New Year celebrations.How many people are typically needed to operate one dragon costume?My answer: The passage said it usually takes around 30-40 people working together.What does the dragon dance represent?It represents the expelling of evil spirits and bringing of good luck for the new year.Where did the dragon dance tradition originate?The passage stated it has been part of Chinese culture for over 2,000 years, originating in ancient agricultural celebrations.I thought this passage was really interesting to learn about a different cultural tradition! The vocabulary was pretty advanced though with words like "expelling" and "agricultural." I had to read carefully.Writing Section:For this, we had to write a short narrative story based on a picture prompt. The picture showed a kid finding an old compass in their backyard.Here's what I wrote:The Compass in the BackyardOne sunny Saturday, I decided to do some exploring in my backyard. I was digging around in the dirt with my shovel, hoping to find some cool rocks or maybe even buried treasure! After a while, my shovel hit something hard under the ground. I brushed off the dirt...and there it was - an old, rusty compass!"Whoa, what's this doing here?" I wondered out loud, totally baffled. Our backyard wasn't that big, so how had this compassgone undiscovered until now? The needle was Still spinning, so it must have been forgotten long ago. I brushed off more dirt and noticed something etched into the side - the initials J.S.J.S...Jonathan Smith? Wait, that was my great-grandpa's name! This compass must have belonged to him when he was young. Maybe he used it on backyard adventures just like me. I felt a weird connection to the past suddenly, like the compass was a secret little time capsule.I couldn't wait to ask Mom and Dad about the mysterious compass later. For now, I carefully put it in my pocket, purchased my shovel, and hurried inside, already dreaming up new expeditions for me and Great-Grandpa's old compass to go on together. Who knew what other forgotten treasures were waiting to be dug up?I try to use a lot of descriptive details and show instead of tell.I chose words like "baffled" and "etched" to make it more engaging. Hopefully the teacher likes it!Grammar Section:This part had us identify parts of speech, correct errors, that kind of thing. I just tried my best to apply all the grammar rules we've learned.Example:Identify the verb, subject, and direct object in this sentence:"Last night, my younger sister baked a batch of delicious chocolate chip cookies."My answer:Verb - bakedSubject - sisterDirect object - batch of...cookiesOr another one:Correct the error in this sentence:"I accidently forgot my lunch on the kitchen counter this morning."My answer:"I accidentally forgot my lunch on the kitchen counter this morning."(Correcting the spelling of "accidentally")The grammar questions really make you pay attention to details. Sometimes it's the little things that trip you up.Vocabulary Section:We had to define vocabulary words from the reading passages and provide synonyms/antonyms. This was one of the harder sections for me.For example:Define "kindled" and provide a synonym.Kindled means to start a small fire burning.A synonym could be ignited or sparked.Or:What is the antonym of "apprehensive"?The opposite of apprehensive (feeling anxious/scared) is something like:Calm, relaxed, confidentVocabulary questions are all about using context clues from the sentence and passage. I need to work on building my vocabulary more.Phew, I think that's everything! That exam really covered all the skills we've been learning - reading comprehension, writing, grammar, vocabulary. Sometimes the questions seemedimpossible, but I just did my best to apply what I've learned. Hopefully my hard work studying paid off. Wish me luck on my grade!At least now the hard part is over, and it's almost summer vacation! I'm looking forward to some relaxing time to read, hang out with friends, and who knows...maybe go on an outdoor adventure with Great-Grandpa's vintage compass. An essay for another day! Let me know if any of my exam answers could use some corrections. Thanks for reading, and happy studying!篇2Hey guys! I know a lot of you have been stressing about the midterm exam coming up for our Compass English class. I've gone through all the units we've covered so far and put together this guide with all the key points and sample answers. Hopefully it will help you feel more prepared!Unit 1 was all about describing people's appearances and personalities. For the description questions, be sure to use lots of vivid adjectives like "shoulder-length chestnut hair", "emerald green eyes", "athletic build", "warm smile", etc. For personalities, think positive words like "kind-hearted", "outgoing","determined" as well as some negatives like "short-tempered" or "shy." An example answer could be:"My best friend Sara has long, curly brown hair and bright blue eyes. She's quite tall and slim with an athletic figure. Sara is very friendly and always has a big smile on her face. She can be a bit disorganized at times but she's hard-working and never gives up easily. Overall, Sara is a kind, social person who brightens up any room."For Unit 2 on daily routines, use phrases like "I usually...", "First thing in the morning...", "After school..." Describe things in chronological order and use transit verbs like "wake up", "get dressed", "have breakfast", "leave for school" etc. A sample:"My daily routine starts when my alarm goes off at 7am. I get out of bed, wash my face and brush my teeth. Then I get dressed in my school uniform and go downstairs for breakfast - usually cereal or toast. After breakfast, I pack my backpack with books and lunch, say goodbye to my parents and walk to the bus stop to catch the school bus at 8:15..."Unit 3 was about shopping, so be familiar with words related to clothing (shirts, pants, dresses, accessories), stores (department store, mall, boutique), and purchasing (bargain, on sale, fits well, try on). You could write:"Last weekend, my mom took me shopping for some new clothes at the mall. We went to several different stores looking for good deals. I tried on a bunch of outfits - skinny jeans, graphic t-shirts, a cozy sweater. In the end, I got a pair of black sneakers that were on sale for 50% off! They fit perfectly and were such a bargain. My mom also bought me a new winter coat since my old one didn't fit anymore..."In Unit 4 about food, you need food vocabulary like fruits, vegetables, meats, grains as well as cooking verbs like slice, dice, saute, bake etc. Talk about favorite foods, family recipes, eating at restaurants. Here's an idea:"I love helping my grandma cook traditional dishes from our culture. One of my favorites is her famous curry chicken. First, she dices onions, garlic and ginger, then sautes them in a pot with oil and curry powder. Next, she adds sliced chicken breast, potatoes, tomatoes and chicken stock. She lets it all simmer for an hour so all the flavors blend together. We eat the curry over basmati rice with naan bread on the side. It's so delicious and comforting!"Moving on to Unit 5 about vacations and travel. You'll need transportation words (plane, train, car, cruise), place words (city,country, beach, mountains) and activity words (sightseeing, hiking, snorkeling, visiting). Describe a memorable trip like this:"Two years ago, my family took an amazing trip to Hawaii for spring break. After a six hour flight from California, we arrived in Honolulu. We stayed in a resort right on the beach at Waikiki. Every morning, we relaxed on the sandy shore and swam in the turquoise ocean. One day, we went on a cruise around the island and went snorkeling at a coral reef to see all the colorful fish. We also hiked through a lush rainforest and visited Pearl Harbor..."Those are the key units to focus on for the midterm. Pay attention to using proper grammar, vivid vocabulary, and giving detailed examples and descriptions in your answers. I hope this guide gives you a good overview of what to expect! Study hard and let me know if you need any other tips. Good luck on the exam!篇3English Midterm Exam AnswersHey there! It's me again, ready to share my awesome tips and tricks for acing the English midterm exam. Buckle up, folks, because I'm about to drop some serious knowledge bombs on ya'll!First things first, let's talk about the reading comprehension section. Now, I know what you're thinking, "Reading? Ugh, that's so boring!" But trust me, it's not as bad as it sounds. The key to nailing this part is to read the passages carefully and pay attention to the little details. Don't just skim through it and think you've got it all figured out. Those tricky questions are designed to catch you off guard if you're not paying close attention.One trick that always helps me is to underline or highlight important information as I'm reading. That way, when I have to go back and reference the passage for the questions, I can easily find the key details I need. It's like having a super-handy treasure map leading me straight to the answers!Moving on to the writing section, this is where you get to unleash your inner Shakespeare (or, you know, a slightly less dramatic version of yourself). The essay prompts might seem intimidating at first, but don't let them scare you off. The key here is to have a solid plan before you start writing.First, brainstorm your ideas and jot down any relevant examples or details that come to mind. Then, organize those ideas into a clear structure with an introduction, body paragraphs, and a conclusion. Trust me, having a solid outline will make the actual writing process so much smoother.And don't forget about those fancy vocabulary words and literary devices you've been learning all year! Sprinkling those in here and there will really impress the teachers and show off your mad English skills.Alright, now let's tackle the grammar and vocabulary section. This is where you get to flex those mental muscles and prove that you're a true wordsmith. The best way to prepare for this is to practice, practice, practice!Go through old worksheets or quizzes and really try to understand the reasoning behind the correct answers. If there's a particular grammar rule or vocab word that keeps tripping you up, don't be afraid to ask your teacher for extra help or clarification. They're there to support you, after all!One more thing – don't forget to manage your time wisely during the exam. Set aside enough time for each section, and if you get stuck on a question, move on and come back to it later. There's no sense in wasting precious minutes on a single question when there are plenty more to tackle.Alright, my friends, that's all the wisdom I've got for you today. But remember, you've got this! Just stay calm, stay focused, and trust in all the hard work you've put in throughout the year. You're practically English experts at this point!Now go out there and show that midterm exam who's boss! And if you ever need a little extra motivation or a pep talk, you know where to find me. Good luck, and happy test-taking!篇4Compass English Grade 8 Second Semester Exam AnswersHey there, fellow classmates! It's me, your friendly neighborhood exam-taker, here to share the answers to that brutal Compass English exam we just powered through. I know, I know - English exams can be a real drag. But fear not, my friends, for I have braved the treacherous waters of grammar, vocabulary, and comprehension questions to bring you the spoils of my efforts!Now, before we dive into the juicy details, let me just say that these answers are based on my own understanding and interpretation. I'm篇5English is Cool, But Exams? Not So Much!Hey there, fellow kiddos! It's me, your friendly neighborhood English enthusiast, here to share a few thoughts on the dreaded "English Compass Grade 8 Second Semester Exam." I know, Iknow, the mere mention of exams probably makes you want to run for the hills, but stick with me – it might not be as bad as you think!First things first, let's talk about the reading comprehension section. I won't lie, some of those passages were a real headache. Who knew a simple story about a kid's trip to the park could be so jam-packed with tricky vocabulary and mind-bending questions? But fear not, my friends, for I have a foolproof strategy for tackling these reading nightmares!Step one: Read the questions first. I know, it sounds counterintuitive, but trust me on this one. By knowing what the questions are asking, you can focus your attention on the relevant parts of the passage. No more wasting precious time trying to memorize every single detail!Step two: Skim the passage for key words and phrases related to the questions. Forget about understanding every single word; that's a surefire way to get bogged down and run out of time.Step three: Once you've identified the relevant information, go back and read those sections more carefully. Now you can start piecing together the answers like a literary detective.Speaking of detectives, let's move on to the writing section. I'll be honest, crafting a gripping narrative or persuasive essay is no walk in the park (pun intended). But fear not, my friends, for I have a few tricks up my sleeve to help you become a wordsmith extraordinaire!First and foremost, always have a plan. Outlining your ideas beforehand might seem like a waste of time, but trust me, it'll save you from a world of disorganized rambling. Decide on your main points, gather your supporting evidence, and arrange it all into a logical flow. Voila – instant writing genius!Next, don't forget to engage your reader. Use vivid descriptions, ask rhetorical questions, and maybe even throw in a bit of humor (but keep it PG, of course). A boring essay is like a sandwich without any filling – sure, it technically qualifies as food, but who wants to eat that?Last but not least, let's talk about grammar and vocabulary. I won't sugarcoat it – these sections can be brutally challenging. But here's a little secret: the more you read, the better you'll get at recognizing patterns and committing rules to memory. So keep those books close at hand, and don't be afraid to ask your English teacher for extra practice materials.At the end of the day, the "English Compass Grade 8 Second Semester Exam" is just another obstacle on the path to English mastery. Approach it with confidence, a bit of strategy, and maybe even a touch of humor, and you'll be just fine. And who knows? You might even find yourself enjoying the process (gasp!).So there you have it, folks – my two cents on tackling this infamous exam. Remember, with a little bit of hard work and a positive attitude, anything is possible. Now go forth and conquer, my fellow English enthusiasts! And if all else fails, just remind yourself that summer vacation is right around the corner.篇6Last week was the dreaded mid-term exam week for 8th graders at my school. We had tests in math, science, history, and of course, English. The English exam was pretty tough, especially the reading comprehension and writing sections. A lot of my classmates found it really hard.Thank goodness the answer key just got released! I've been going through it carefully to see where I went wrong. For the reading section, there were three passages we had to read andanswer multiple choice questions about. Those are always the trickiest parts.The first passage was about the history of the compass. I missed a couple of the detail questions, like the one asking what the first compasses were made of. The answer key says they were originally made from lodestone, a naturally magnetized iron ore. Who knew?The second passage was a short story about a girl who got lost hiking in the woods. Most of the questions were about analyzing the characters and plot. I did pretty well on those, but missed the one asking about the main theme or lesson of the story. According to the answer key, the theme was about the importance of being prepared when going into nature.The third reading passage really threw me for a loop. It was all about how compasses work - the science behind magnetism and Earth's magnetic fields. I barely understood half of what it was saying! I probably got like half of those questions wrong based on the answer explanations.Then we had to write a short essay about whether we thought compass skills were still important to learn nowadays with modern navigation technologies like GPS. I argued that they were still useful skills, especially as a backup plan. But the answerkey seemed to favor the viewpoint that they aren't as essential anymore. Oh well, I guess the graders disagreed with my stance.For the language/grammar section, there were some tough questions about stuff like identifying participle phrases and using colons correctly. I'll definitely have to study those rules more carefully.Overall, while I didn't ace the test based on the answer key, at least I've gotten a good grasp now on which areas I need to improve for next time. Getting an insight into how the graders were thinking is really valuable. I just need to work on thoroughly understanding those denser non-fiction passages and science-y topics.Seeing the answer key actually makes me feel a little better about my score too. A bunch of other kids are saying the same thing - that the test seemed way harder than we expected while taking it. At least I'm not the only one who got difficulties wrong!I just need to keep studying hard. After all, these skills will be so important for high school English and any career I pursue. For now, I'm feeling relieved to have this answer key as a resource to learn from my mistakes. Brings me one step closer to being an English compass pro!。
广州2024年05版小学3年级上册英语第四单元测验试卷考试时间:100分钟(总分:100)考试人:_________题号一二三总分得分一、(选择题)总分:45分(1分/题)1、What do you use to cut paper?A) KnifeB) ScissorsC) RulerD) Tape2、What do you call a person who plays music?A) ArtistB) MusicianC) ActorD) Dancer3、What do you call the number that comes after 7?a) 6b) 8c) 94、当别人跟你说“Nice to meet you”,你应怎样回答A, Nice to meet you .B, Nice to meet you, too5、What is the term for a baby dog?A) KittenB) PuppyC) CalfD) Chick6、What is the capital of France?A) BerlinB) MadridC) ParisD) Rome7、What do you call a person who studies the stars and planets?A) GeologistB) AstronomerC) BiologistD) Meteorologist8、What is the main ingredient in chocolate?A) CocoaB) FlourC) SugarD) Butter9、( )你想把你的妹妹介绍给你的朋友Amy认识时,你应该说:__________。
A, Amy, this is my sister.B, She is Amy, Sister.C, This is Amy, Sister.10、Which one is used to tell time?A) ClockB) CalendarC) BookD) Phone11、How many sides does a square have?A) 3B) 4C) 5D) 612、听力朗读。
Portfolio of ProductsThermal Interface Materials for Today's ElectronicsKEEP COOL – PERFORM BETTER.As an advanced materials supplier, Honeywell hasbeen meeting the application needs of electronic device manufacturers for more than 50 years, and we continue to provide vital materials for thermal management solutions across multiple industries.HONEYWELLTHERMAL INTERFACESOLUTIONSOVERVIEWSELECTION GUIDECONTENTSOverview Selection Guide3Honeywell Strength & Advantages 4Targeted Materials 5Phase Change Materials 6Thermal Gap Pads 8Thermal Putty Pads 10Thermal Insulators 11Thermal Grease 12One-Part Hybrid 14Two-Part Hybrid 16SOLVING INCREASINGTHERMAL CHALLENGES FOR TODAY AND TOMORROWOur ongoing investment in research for more advanced materials has resulted in breakthroughs for key applications: thermal interface materials (TIMs) such as phase change materials, and low alpha particle materials for electrical interconnect.The modern electronics industry is constantly advancing toward higherpower consumption and more integratedHoneywell TIMs are based on proprietary technologies of polymer matrices andthermally conductive fillers, enabling them to handle challenging heat dissipation issues with long-term reliability and low cost of ownershipfunctions and miniaturization, resulting in a sharp increase in the power density of modern electronic devices. 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Requirements are driven by product use, product life cycle, packaging design, and operating conditions.Thermal PerformanceIncreasing power densities are raising device temperatures — requiring more effective TIM solutions that mustdeliver low thermal impedance and high bulk conductivity. Reducing operating temperature can reduce device throttling, while increasing efficiency and design flexibility.Product Life Cycle & Reliability Mobile products such as tablets and smartphones have a relatively short product life, but still require thermalmanagement to protect from extreme and sudden bursts of energy and temperature spikes.Conversely, automotive, power and server products must remain robust for significantly longer product life cycles.These applications involve harsh operating conditions such as extreme heat and humidity, which must be taken intoaccount in choosing the best TIM material. The key requirement in these applications is not just immediate performance but also sustained, long-term thermal stability.Gaps & Bondline ThicknessIC designers are continually looking for ways to achieve more processing power in less space. Additionally, high power devices with dedicated heat sinks aim to achieve an extremely thin TIM bond line with low thermal impedance and a reduced thermal path. To add to the complexity, chip-scale packages assembled on a PC board will share the same heat spreader but will have different heights with varying gaps, requiring a TIM that delivers both thermal and compressible properties. Taking all this into consideration, it is important for today’s TIMs to provide effective thermal management inincreasingly constrained environments and different assembly designs.TARGETED MATERIALSOUR APPROACHWe have designed our products to optimize thermal impedance. This means that we look at the entire thermal path, not just the TIM itself. This includes the material interfaces, the thermal expansion of the joining interfaces, contact resistance and bond line thicknesses.Our portfolio of materials dissipate heat away from the IC, in an appropriate way for the device structure, packaging design and application. The design of Honeywell’s phase change materials (PCMs) is drivenIn addition to our phase change materials, we offer a variety of products with high thermal conductivity and high compress-ibility, including thermal gap pads, Thermal Hybrid, thermal grease, thermal insulators, and more.Honeywell’s application support experts can help you choose the correct thermal interface solutions for your product — taking into account its design, usage and life cycle.by an innovative polymer technology and advanced filler systems, which can be customized to fit diverse product applications and end uses.Smartphones and tablets experience sudden temperature spikes, requiring very high thermal performance, while power electronics in automobiles need extreme thermal stability to meet warranties that stretch over long lifetimes. Our TIMs portfolio is designed to meet these varying needs and more.Honeywell’s research and development center in Shanghai, China.THERMALPHASE CHANGE MATERIALSPhase change materials (PCM) are often used as matrix materials for thermal interface applications, because they aresolid at room temperature, and soften when heated. They can fully fill the gaps of contact surfaces, therefore providing a thin bondline and high reliability without pump-out issues.Recommended ApplicationClamping pressure and temperature aresuggested to achieve a minimum bondline thickness, typically less than 1.5 mil(0.038mm) for best thermal performance.Storage & UseShelf Life: 12 months at 23±2˚CAvailabilityPCM material is available in both sheetand roll formats. Stencil printable (SP)material is available in 300cc syringesor 1kg jars.Thickness Range: 0.2mm–1.0mm(PTM7950 is only available in 0.25mmthickness)Thickness Tolerance:±0.075mmTYPICAL PROPERTIESPROPERTYDESCRIPTIONLTMSERIESPCM45FSERIESPTM5000SERIESPTM6000SERIES*PTM7000SERIESTESTMETHOD*PTM6000 ha s higher reliab ility than PTM5000 SeriesIncreasing TemperatureTheoretical Curve:PCM Viscosity vs. TemperatureViscosity Solid Liquid/Gel State• Optimal surface wetting• Low contact resistance• Low thermal impedancePhase ChangeTemperaturePCM PERFORMANCETHERMALLY CONDUCTIVEPHASE CHANGE MATERIALFor many applications, the Honeywellsolution, which adds a TC filler to the PCMmatrix, forms a phase change compositewith high heat transfer performance thatsolves these pump-out issues.Honeywell offers both pad and pasteformats for its thermally conductive PCM.These products were designed to minimizethermal resistance at interfaces andmaintain stable performance through therigorous reliability testing required for longproduct life applications.Based on a robust polymer PCM structure,this material exhibits effective wettingproperties during typical operatingtemperature ranges, resulting in very lowsurface contact resistance. The proprietarymaterial provides superior reliability andmaintains low thermal impedance, makingPCM desirable for high-performanceintegrated circuit devices.Honeywell offers PCM in both padand paste formats.For almost 20 years, PCM products havebeen a Honeywell mainstay for thermalsolutions in a wide variety of applications.PCM paste is well-suited for the stencilprinting application process.THERMAL GAP PADSHoneywell Thermal Gap Pads (TGPs) provide high thermalperformance with ease of use for many applications. Ultra-high compressibility enables low stress and excellent conformity to mating surfaces. Honeywell TGP models are naturally tacky, and require no additional adhesive which could inhibit thermal performance.1Typical ValueTHERMALLY CONDUCTIVE, HIGH BREAKDOWN VOLTAGE GAP PADTGP8000HV is a Thermal Gap Pad which offers a strong combination of low thermal impedance, high breakdown voltage and ease of use across a widevariety of applications. The naturally tacky property means there is no need for an additional adhesive, which could inhibit thermal performance. Available formats for TGP8000HV include standard sheets and custom die-cut parts in a range of thicknesses.Applications & FeaturesIn addition to the features of the TGP1200- TGP8000 line, TGP8000HV is effective for applications that require high break-down voltage.TGP8000HV TYPICAL PROPERTIESPROPERTYTGP8000HV TEST METHODTHERMALLY CONDUCTIVE, HIGH COMPRESSIBILITY GAP PADHoneywell TGP models provide thermal performance with ease of use across a multitude of applications. They have been designed to minimize thermal resistance at interfaces, and maintain effective performance through reliability testing. TGP models are silicone based, therefore they offer a certain anti-shock effect, with electrical isolation and non-flammability.Honeywell TGP models are naturally tacky, and require no additional adhesive which could inhibit thermal performance. A range of thicknesses from 0.5mm to 5.0mm are available. Honeywell TGP models come with two surface liners, which enables users to remove the liner after installation (before operation), with no contaminantrisk and easier handling.Storage & UseShelf Life: 12 months at 23±2˚C Thickness Range:0.5-5.0mm with 0.25mm incremental Thickness Tolerance:>1mm, ±10%0.5-1mm, ±0.1mm <0.5mm, ±0.05mmPlease check thickness availability before ordering.Honeywell TGP model gap pads are available in standard sheets and also custom die-cut parts, and in a range of thicknesses.Two surface liners enable easier handling with less contamination risk.2Thickness range: 0.5-5.0mm with 0.25mm incremental Low hardness provides excellent surface wetting and high compressibility.The low oil-bleeding property protects components from contamination.THERMALPUTTY PADSTYPICAL PROPERTIESPROPERTYTGP 3500PTTGP 6000PTTGP 8000PTTEST METHODTHERMAL INSULATORSHIGH THERMAL CONDUCTIVITY, ELECTRICAL INSULATIONTIP1500 combines 1.5 W/m·K, and TIP3500 combines 3.5 W/m·K thermal conductivity, with superior insulation. TIP1500 and TIP3500 are designed to be soft and conformal, which providesexcellent mating surfaces for low-pressure mounting. TIP1500 is offered in 0.19 and 0.23mm thickness. TIP3500 available thicknesses range from 0.25mm to0.50mm.The TIP series provides low thermal impedance and high insulation for highpower and high voltage applications.TYPICAL PROPERTIESPROPERTYTIP1500TIP3500TEST METHODStorage & UseShelf Life: 12 months at 23±2˚CConfigurations AvailableSheet form and die-cut partsHoneywell Thermally Conductive Putty Pads provide high thermal performance and solid thermal reliability. The material’s putty-like consistency enables excellent gap-filling capability for applications with large dimensional variances.HIGH THERMAL CONDUCTIVITY, HIGH COMPRESSIBILITY, THERMAL PUTTY PADSpecial surface reinforcement enables easier handling for operators, with no pull-out during high-volume assembly. The product is naturally tacky and requires no additional adhesive to mate to the heat source and heat sink. Thermal putty pads are available in thicknesses ranging from 0.5mm to 5.0mm.Storage & UseShelf Life: 12 months at 23±2˚CTIP1500, TIP3500The TIP series is Honeywell’s latest high-performance thermal conductivity and insulation material. It is made with silicon resin as the matrix, reinforced with glass fiber as the substrate.TGP putty pad materials are ideal for applications with large dimensional variations between surfaces.1Thickness range: 0.5-5.0mm with 0.25mm incremental 2Thickness tolerance: TIP1500: ±0.01mm, (±0.02mmTHERMAL GREASEHoneywell silicone grease products provide superiorthermal performance with ease of use across a multitude of applications. The low viscosity and inherent thixotropy make the technology a good fit for large-scale production with dispensing, screen printing and stencil printing.TYPICAL PROPERTIESPROPERTYTG2000ITG2800ITG3000TG3000I TG4000TG5500TEST METHODHIGH THERMAL CONDUCTIVITY THERMAL GREASEThermal Grease is a common silicone thermal interface material, usually used to increase thermal contact conductance across jointed solid surfaces. Thermal interface materials occupy the space of air (a very poor thermal conductor) and fill in the gaps between two solid surfaces. This establishes an effective thermal path between a heat-generating component and a heat sink attached to it, therefore greatly increasing thermal transfer efficiency.Silicone thermal grease is a composite containing silicone and inorganic or metal nanomaterials with high thermal conductivity. Compared with thermal pads or liquid gap fillers, grease has the lower viscosity, and it can be used by dispense or screenprint, forming a thinner thermal conductivity layer with high thermal conductivity performance.Honeywell thermal greases are designed to minimize thermal resistance at inter-faces, and maintain excellent performance through reliability testing. TG seriesproducts are offered with varying thermal impedance and thermal conductivityproperties to complement different power densities in real applications. Products are also available in a range of bondline thicknesses (BLT) to meet variations ininterface flatness.Storage & UseShelf Life: 12 months at 23±2˚CLow viscosity and excellent thixotropy make thermal grease appropriate for large-scale production.Honeywell thermal grease remainsstable under room temperature storage.Packaging availability:0.5kg can, 1kg can, 5 gallon pailONE-PART, DISPENSABLE, VERY LOW COMPRESSION FORCE, THERMAL HYBRID Hybrid is a substance between liquid and solid, combining the advantagesof thermal grease and thermal gap pad, without the potential problems of either. Thermal Hybrid is prepared as a silicone polymer, with low molecular siloxane, and mixed with high thermal conductivity particles (such as alumina, aluminum nitride powder, etc.).Compared with thermal grease, the main difference is that thermal Hybrid does not present oil separation issues while in storage, and the Hybrid can be torn offand reused. Thermal Hybrid only needsa relatively low working pressure whenconnected with heat sink and chip, andhas a wide working temperature range.The HT series, our one-part Gap Filler,provides effective thermal propertiesand high conformability along with itshigh compressibility. It is formulated todeliver high dispense rates for improvedproductivity, long-term reliabilityperformance and easy re-workability. It isdesigned to minimize thermal resistanceat interfaces, maintain its performancethrough reliability testing, and providescalable application at a competitivecost. All HT series products are availablein 280cc aluminum cartridge, and 1 and5-gallon pail.Thermal conductivity liquid gap fillers not only have the benefitsof shape recovery, strong material cohesion, and good long-term thermal stability — they also offer a very low thermal resistance comparable to thermal grease, and can fill gaps at interfaces.*Contact Hon eywell for late st information.One-part thermal Hybrid offer gooddispensing and thixotropy propertiesfor automated assembly processes.Honeywell’s thermal Hybrid materialsprovide good surface wetting withoutslump after dispensing.A large selection of packaging options isavailable for our one-part and two-partthermal Hybrid products.Hybrid thermal interface materialsoffer a variety of options for dispensing methods, depending on the application.HLT series products are two-component, dispensable thermally conductive gels, which offer long-term reliability and superior softness. The enhanced bonding force between the polymer base and the filler minimizes oil separation issues in storage.TWO-PART, DISPENSABLE, VERY LOW COMPRESSION FORCE, THERMAL HYBRIDPrior to curing, the material maintains good thixotropic characteristics and low viscosity to be easily dispensed.The product can be cured in a short time after two-component mixing at room temperature. The high compressibilityminimizes thermal resistance at interfaces, while maintaining excellent performanceduring reliability testing.The recommended modified viscosity and cure schedule meets large-scale application requirements.*Contact Hon eywell for late st information . ** Brookfield Viscometer, #7 spindle, 10r pmStorage & UseShelf Life: 6 months at 23±2˚CAvailabilitySyringes—200+200cc Jar—1+1gal, 5+5gal On requestState-of-the-art two-part Hybrid with high thermal conductivity for high power density applications.DEVELOPMENT ANDMANUFACTURING LOCATIONSUnited StatesSanta Clara, California Sunnyvale, California Spokane, Washington Chandler, Arizona Salt Lake City, Utah Bryan, Texas Mansfield, TexasFombell, PennsylvaniaEuropeSeelze, GermanyAsiaShanghai, China Jincheon, Korea Yaita, JapanChonburi, ThailandHONEYWELL ADVANTAGES Quality• Industry-leading reliability over device lifetime• More than twenty years specializing in TIM materials R&D and manufacturing • Proprietary formulations optimized for the needs of specific applications • Proven, long-standing supplier with multiple worldwide quality certificationsCustomer Focused• Serving diverse range of customers • TIMs offered in a wide range of thermal conductivity and application forms • Superior global technical support • Portfolio of other materials, such as thermal spreaders, electrical interconnect and pure metalsEEE EResearch & Development Site Manufacturing SiteGLOBAL SUPPORTFor More Information Honeywell Electronic Materials USA: 509.252.2102China: 400.840.2233 Germany: 49.5137.999.9199 Japan: 81.3.6730.7092 Korea: 82.2.3483.5076 Singapore: 65.6580.3593 Taiwan: 886.3.6580300 ext.312Although all statements and information contained hereinare believed to be accurate and reliable, they are presented without guarantee or warranty of any kind, express or implied. Information provided herein does not relieve the user from the responsibility of carrying out its own tests and experiments, and the user assumes all risks and liability for use of the information and results obtained. Statements or suggestions concern-ing the use of materials and processes are made without representation or warranty that any such use is free of patent infringement and are not recommendations to infringe any patent. The user should not assume that all toxicity data and safety measures are indicated herein or that other measures may not be required.Brochure 10-2019-R1©2019 Honeywell International Inc.。
试卷C 参考答案
一、选择题
1 .B 2.C 3.B 4.C 5.B 6.B 7.A 8.A 9.B 10.A
二、名词解释(每题4分,计24分)
1.单位质量炸药爆炸反应过程放出的热量。
2.炸药在热的作用下保持其物理、化学等爆炸性质不发生明显的变化的能力。
3.一定条件下,将炸药加热到爆炸时,加热介质的温度。
4.C-J 爆轰是所具有可能的爆轰中,爆轰速度最小的爆轰。
5.猛度:炸药爆炸后对与之直接相接触的物质的直接破坏和粉碎作用,反映出炸药的局部
破坏作用。
6.当地介质的运动速度也当地声速之比值。
三、论述题或计算题(计56分)
1.军事上:用于装填各种炮弹、炸弹、地雷、水雷等,用于推动火箭升空和导弹飞行、用
于产生信号、烟雾等特殊效果。
民用上:用于矿山开采、筑路、水利、水电等建设中的爆破工程,用于爆炸焊接、加工
成型等爆炸加工。
关系:(1)用于装填雷管的起爆药,必须具有爆轰成长短的特征,即燃向爆轰的转变十分迅
速。
(2)用于推动火箭运行的炸药,利用了炸药的燃烧性质。
(3)爆破工程中岩石爆破破碎总是利用炸药的爆轰而不是燃烧。
2.一般来说零氧平衡的混合炸药爆热高,因而其爆炸作功能力大,除含金属粉的混合炸药
外,零氧平衡的混合炸药爆热高,爆轰速度和爆轰压力也比较高。
1
11
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2200112033
1011010022340//1[1()]1[1()]0.3631 2.4700
/0.363 3.37710.4.840.3632884991.013
D c v v k v u g cm v T T K v ρρρρρρ--==--=-⨯-=+-∴==⨯⨯==⨯= 4.B-W 方法:
366622333C H O N H O CO N →++
最大放热量方法:36662223 1.5 1.53C H O N H O CO C N →+++
(1) 方程式不同,爆热计算结果不同,因而爆轰参数计算不同。
(2) 方程式不同,绝热指数计算结果不同,因而爆轰参数计算不同。
5.根据热力学第一定律,系统内能的减少等于系统对环境所做的功和系统向环境传递的热
量,对一微小过程有:
-dU=δQ+δA (1)
若炸药在介质中爆炸瞬间完成,然后高温高压的爆炸产物绝热膨胀做功,即爆炸产物的膨胀
过程和周围介质没有热交换, 所以有:-dU =δA (2) U:爆炸产物所具有的内能,A :爆炸产物膨胀对外所做的功,Q :爆炸产物膨胀过程中对外
界传递的热量,Q=0。
若U 只是温度的函数,则有: dU=cdT (3)
由(2)和(3)得:A= -⎰
1
2T T cdT =1(T 1-T 2) (4)
T 1、T 2是爆炸产物开始膨胀前和膨胀终了的温度,1是在T 1、T 2之间的平均热容。
再根据热力学第一定律,对瞬间完成的爆炸(定容爆炸):
dU=δQ (5)
类似有: Q V =
⎰1
0T T cdT =c 2(T 1-T 0) (6)
T 0炸药的初温(一般为环境温度),T 1为炸药爆温,c 2为T 1、
T 0间的平均比热容,。
一般T 0<<T 1,所以Q v ≈c 2T 1
如果 c 1=c 2= c ,那么Q v ≈c T 1 (7)
由(4)和(7)得: A =c (T 1-T 2)=Q V (1-12T T ) (8)
若爆轰产物为理想气体且膨胀过程服从规律:PV r =constant, 则有: A = Q V [1-121)(-r V V ]= Q V [1-r r P P 112)(-]=ηQ V (9)
这就是炸药爆炸做功能力的理论表达式,式中Q v :定容爆热,V :比容,P :压力,r:绝热
指数,η:做功效率,下标1和2分别表示爆炸产物的初态和终态。