高中英语必修三unit4学案及答案培训讲学

[高效预习探究案]一Warming up & Pre-reading本节课学习知识早知道：对于要学的知识做到心中有底，这样才能更好的安排自己的学习步骤和学习时间，愿知识清单能够更好的帮助你进行自主学习！我们将要学习的学习内容：1. To encourage students to think and talk about astronomy.2. Learn some new words and phrases.能力目标：To develop students’ ability of creativity and imagination.To learn to talk about astronomy in English.语言目标：掌握重点词汇astronomy, astronomer, solar system, religionTasks:Step 1: Lead-in and warming upGet the students to talk about astronomy, The students can talk freely as they like.1. Are you interested in astronomy? Do you know something about it?Do you know about any famous astronomers in the word?was the first to suggest that gravity is a force.developed a new idea of gravity and the theory of relativity.is most famous for his work on: black holes.Do you know something about solar system?Solar system is made up of and the objects that orbit it. These includes and their , as well as asteroids (小行星), comets（慧星）, and meteors（流星）.2. How many planets circle around the sun?a. What are they? (according to the order of the distance from the sun)b. There used to be nine planets in the solar system. One of the them can no longer be considered a planet. What’s the name of the planet? Why did scientists remove it?3. Is there life on these planets?Step 2: Think it over1. How old is the universe?2. (1)How did the universe begin? Different religion and culture has different ideas. What do you know?The following notes may be helpful.a. The story of the Hopi people: The Four Creations.b. From China: The story of Pan Guc. The Jewish / Christian / Muslim story(2) The universe is made up of stars, planets and other matter scattered throughout space.3 How old is the earth?4. What made it possible for life to develop on the earth?5. Which do you first think existed on the earth, plants or animals?[高效预习探究案]二Reading一、热身问题1. Look at the pictures and the title of the reading passage. Predict what the reading will be about and what will be mentioned in the text?二、速读课文，回答下列问题1. How did the universe begin?2. When did the dust settle into a solid globe to be the earth?3. What began to appear on its surface when the earth cooled down after exploding?4. What began to appear on the surface of the water many millions of years later?5. How many years did dinosaurs existed on the earth? When did they disappear?三、精读课文，回答下列问题1.Put the order of development of life into a timeline.（1）Insects and amphibians appeared.（2）Dinosaurs speared.（3）The earth became a solid ball（4）Small plants grew on the water.（5）Reptiles appeared.（6）Plants began to grown on dry land.（7）The earth was a cold of dust.（8）Water appeared on the earth.（9）Shellfish and other fish appeared.（10）The universe began with a: Big Bang.（11）Clever animals with hands and feet appeared.（12）Mammals appeared.2、把每个段落与段落大意相搭配Para 1 A. The development of plants and animals on the earth.Para 2 B. The arrival of humans and their impact on the earth.Para 3 C. A widely accepted theory about the formation of the universe.Para 4 D. The importance of water for life.Para 5 E. The formation of the earth.四、讨论1. Why was the earth different from the other planets?2. Why did the plants grow before the animals came?3. What problem is caused by human beings.4. What should we do to deal with the problem? Say it out in detail.五、与同桌讨论，理解下列长难句并尝试翻译成汉语1. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.句子结构分析：what 引导的是从句，what在此从句中作表语。

Module 3 Unit 4 Astronomy: the science of the starsPeriod 1 Reading: How Life Began on The Earth班级__________ 姓名____________ 学号_____________Learning Objectives:1.Learn the useful new words and expressions in the reading material.2.Improve the reading skills while reading the passage about the astronomy.Learning Key Points:1. Grasp the important words and expressions in the reading material.2. Learn something about how life began on the earth.Learning Difficult Points:1. Grasp the important words and expressions.2. Improve the reading ability.Learning Procedures:I.【Pre-class homework】Assessment:A. Match the main idea of each paragraph.Para 1: ( ) A. The formation of the earth.Para 2: ( ) B. A widely accepted theory about the information of the universe.Para 3; ( ) C. The arrival of humans and their impact on the earth.Para 4: ( ) D. The importance of water for life.Para 5: ( ) E. The development of plants and animals on the earth.B. Ask and answer.1. What was there on the earth before life could begin?___________________________________________________________________________ 2.Why did animals first appear in the seas?___________________________________________________________________________ ___________________________________________________________________________ II. While-class （课堂教学流程）Step 1 Lead-inStep 2 Discussion （小组讨论交流课堂前置性作业）Ss discuss their pre-class homework in groups.Step3 Consolidation（巩固应用）A. Further reading and finish the following comprehension questions.1.( ) What forms the earth’s atmosphere?A. Carbon dioxide, oxygen .B. Carbon dioxide, oxygen, poisonous gas.C. Water vapor, carbon dioxide, oxygen, nitrogen.1D. Water vapor, carbon dioxide, oxygen, nitrogen and other gases.2. ( ) Why was the earth different from other planets?A. It produced a lot of heat.B. The water remained.C. Water disappeared.D. It was the oldest planet.3. ( ) What kind of factor improved the progress of life?A. Water forms on the earth’s surface.B. Green plants began to appear on land.C. The air is full of carbon dioxide.D. Animals began to appear such as insects, amphibians, est.3.( ) What is the main idea of this passage?A. It tells us how life begins to appear on the earth.B. It tells us why green plants grow before animals.C .It tells us water plays an important role in the development of life.D. It tells us carbon dioxide is the reason why living beings will die in the future,4.( ) The author infers us that if we want the life to continue on the earth, what shouldwe do?A. We should produce more carbon dioxide to cause global warming.B. We should solve the problem of global warming as soon as possible.C. We should bear less people and think about a new way to grow more crops.D. We should be worthy of water.B. Cloze test.At the very beginning, the earth was just a cloud of 1. ___________ (energy) dust. Then the dust combined 2. __________ a ball moving around the sun. After that, it exploded 3.______(loud) with fire and rock, 4. ___________ (produce) water vapor,carbon dioxide and other gases, 5. _____________ made 6. ____________ possible for life to begin to develop. Some small plants 7. ___________ (grow) in the water appeared on the earth’s surface, 8. _____________ (follow) by land animals, including insects, amphibians, reptiles and the dinosaurs. But they disappeared 9. ________ of a sudden and some small clever animals with hands and feet appeared and spread all over the earth and took the place of dinosaurs. They became 10. _______ most important animals on the planet —that is, human beings.Step 4 Presenting （成果展示与教师点拨）Ss present their group job.1．Ss write down their answers on the blackboard and give the explanation in class. 2．Teacher and Ss’ comment.Step 5 Summary（学生小结）Ss talk about what they have learned in the lesson.Keys:【Pre-class homework】A. Fast reading1. BADECB.1. Water vapor, carbon dioxide, oxygen, nitrogen and other gases.2. Because water allowed the earth to dissolve harmful gases into the oceans and seas. While-classA. 1-5 DBBABB. Cloze test.1.energetic2. into3.loudly4. producing5. which6. it7. growing8. followed9. all 10. thePeriod 2 Language points in Reading 1 Class：Name：Group：No：Learning Objectives:1. Learn and grasp the important useful new words and expressions.2. Learn the important useful sentences and patterns.3. Make sentences after the useful expressions.Learning Key Points:Ss grasp the usages of such important new words and expressions.Learning Difficult Points:Ss understand some difficult and long sentences.Learning Procedures:I.【Pre-class homework】Assessment: Translate the Chinese into English.A. Phrases1. 太阳系____________2．大爆炸____________3．及时，终于____________4．形成，安顿下来____________ 5．对……（来说）是基本的___________ 6．对……有害____________ 7．连锁反应____________8．下蛋____________9．产生，分娩____________ 10．轮到某人，接着____________ 11．二氧化碳____________ 12．阻止，制止____________B. Sentences3Assessment:1. 昨天晚会的气氛非常欢快，每一个人都度过了美好的时光。

Unit 4 Astronomy: the science of the stars1.system n.系统，体系，制度the solar system太阳系；a railway system 铁路系统； a social system 社会制度；a security system安保系统 a heating system 供热系统systematic adj. 有系统的；有条理的(1)Too much drinking does harm to the system.(2)The solar system is mainly made up of the sun and the 8 planets.(3)This weekend I ’ m going to install a home security system.(4)The teacher made a systematic work of teaching.(5)How many of you think the educational system is working?(6)The school offered a systematic course in reading.2.theory n.学说；论说；理论，原理；意见，看法in theory理论上；原则上Malthusian theory马尔萨斯学说，马尔萨斯人口论scientific theory 科学理论theory of gravity 万有引力理论(1)There are many theories about the origin of life.(2)Your plan sounds fine in theory.(3)She has a theory that drinking milk prevents colds.(4)Not in theory. But in practice?(5)Every boy and girl had a theory ( 七嘴八舌)about the nature of that book.(6)Many scientists accept the theory that the universe is growing larger.3. in time 及时，终于，迟早on time 准时，按时at a time 一次，每次at one time 曾经；一度；同时at times 有时，偶尔at no time 决不in no time 马上；立刻(1)The doctor came in time to save his life.(2)You will realize the mistakes made by you in time.(3)I saved my bacon (save one ' s bacon人的命)by arriving just in time for the meeting.(4)Although he is a good student, he is late for class at times.(5)You borrowed money; you didn ’ t return it on time.(6)He checked them off one at a time as they came in.(7)At no time should you give up studying.(8)In no time he will come back.4.atmosphere n.空气；大气层；大气圈；气氛；氛围；环境；atmospheric adj.大气的；大气层的；令人激动的词语辨析：atmosphere指地球或其他天体的气体或大气层；air 指环绕在地球周围并且人和动物能呼吸的空气或大气层。

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Unit 4 Space ExplorationReading and Thinking词汇知识咱主学习i.根据语境写出正确的单词a famous astronaut 一位著名的宇航员1.the selection procedure 选择过程mental and physical training 身心训I 练2.an intelligent answer 一个聪明的回答the secrets of the universe 宇宙的秘密3.escape Earth's gravity 摆脱地球的引力make vehicles to carry people 制造载人的交通I：具4.determine to be a explorer 决定做一个探索者the Sputnik satellite"旅伴一号"卫星unch the satellite发射卫星orbit around Earth绕地球运转6.America's NASA space a^encv 美国宇航局太空总署transmit data 传输数据7.the desire to explore the universe 探索宇宙的欲望Shenzhou 5 spacecraft 神舟五号飞船即学活用⑴语法填空。

①His determined (determine) look suggested that he wouldn't change his mind.②Determined (determine) to train his daughter in English, he found an English teacher for his daughter.③It takes hard work and determination (determine)to reach the goals that we want to achieve.(2)Sandra determined to(决定)become a doctor and her persistence paid off.(3)She is determined to /hcs determined夬心、)keep a journal.2.disappointed adj.失望的；沮丧的He was disappointed that other guests were not coming.其他客人没有来，他感到失望。

Unit 4 Astronomy: the science of the stars高一年级英语组王学杰2014-03-06单元目标：1 .知识目标：掌握本单元单元要点预览中的重点单词，短语和重要句型；掌握名词性从句中主语从句的用法。

2.能力目标：通过学习了解宇宙科学，地球上生命的起源和发展历程，了解万有引力、黑洞和太空旅行等天文学知识。

3.情感目标：培养学生对科学的兴趣和保护地球的意识，激发学生探究科学的热情。

|Taskl, Skimming |Reading strategy（策略）：Go through the passage quickly to get the main idea of each paragraph. Don't worry about the details and new words.Skim the passage and match the main idea with each paragraph.Para.l The formation（形成）of the earthPara.2 The importance of water for lifePara.3 A widely accepted theory about the formation of the universePara.4 The arrival of humans and their effects on the earthPara.5 The development of plants and animals on the earth|Task2.Scarniing :〔Choose the best answerl.Why was the earth different from other planets?A.It produced a lot of heat.B.The water remained.C. Water disappeared.D.It was the oldest planet.2.Why was life able to develop on the earth but not on other planets?A.The earth had a solid shape.B.The earth did not have harmful gases in its atmosphere.C.The water stayed on the earth but not on other planets.D.The earth was not too hot and not too cold.3.Why did the plants grow before animals came?A.Animals needed plants to protect them from the sun.B.Plants provided oxygen for animals to breathe.C.Animals could hide from hunters in forest.D.It was easier for plants to grow.4.What problem is caused by human beings?A. They exist everywhere on the earth.B. They cause global warming.C. They find new methods of growing crops.D.They enjoy hunting and Ashing.Reading strategy: Read the passage carefully paragraph by paragragh and try to get more information. Then answer the questions.|Para.l&2: |The formation of the universe and the earth1.About how the universe began, which theory is widely accepted?2.What form （形状）was the earth after the "Big Bang”？3.What made up the earth9s atmosphere after the earth exploded?4.1n the sentence “It exploded loudly with fire and rock. They were in time to produce carbon, nitrogen..."here "they" refers to. "In time” means__________________________ ・|Para.3: |The importance of water for lifeWhat made the earth different from the other planets is that remained on theearth.The significance of the continued presence of water is that it allowed.|Para・4 :| The development of lifel.small plants in the water 2. 3. 4. Insects on land5. 6. 7. 8.dinosaurs 9|Para.5〔: The arrival of humans and their effects on the earth1.What problems have been caused by humans to the earth?2.What does the last sentence mean?|Task4・ Post・readin^nI .From the text, we can infer （推断）except that ____ ・A.The passage tells us the scientific idea of how life began on the earth.B.It is wrong to show Aims with dinosaurs and people together.C.Finally, humans rule the world, but they are not taking care of the earth very well.D.Life began on land and then in water.II. Can you And their English in the text?1.随后他会变成什么一直无法确定直到约45亿至38亿年这团尘埃最终变成一个固体圆球。

Ⅰ.Match the topic sentence with proper paragraph.Para.1A．We visited the moon in our spaceship!Para.2 B．When we got there, I wanted to explore immediately.Para.3 C．But returning to the earth was very frightening.Para.4 D．Before we left, Li Yanping explained to me ... the most powerful.答案：Paras.1～4ADBCⅡ.Choose the best answers according to the text.1．When we were going up, we felt ________．A．we were pressed against our seatsB．we were lighter than we are on the earthC．as if we were flyingD．the rocket was shaking strongly2．Why can't the spaceship fall back to the earth?A．Because the moon's gravity pulls it up.B．Because it is too far away from the earth.C．Because the earth has no gravity.D．Because the spaceship is not very heavy.3．When I was on the moon, I felt I was ________ than I am on the earth.A．slower B．heavierC．cleverer D．lighter4．If a baby is growing on the moon, when he grows up, he will grow ________ than he is on the earth.A．taller B．shorterC．fatter D．thinner5．The passage mainly talks about ________．A．what the moon isB．my visit to the moonC ．the difference between the earth and the moonD ．Li Yanping, my friend, who is an astronaut答案：1～5 ABDABⅠ.单词拼写1．A truck went out of control and crashed (碰撞) into the back of a bus.2．The young man knows little about Newton's law of gravity (万有引力).3．The smell of new bread floated (飘动) up from the kitchen.4．Don't pull (拉) so hard or the handle will go off.5．Britain has a temperate climate (气候)．6．Eggs are sold by weight (重量)．Ⅱ.拓展词汇1．biology n ．生物学→biologist n ．生物学家2．gentle adj .温和的；文雅的→gently ad v .温和地3．physicist n ．物理学家→physics n ．物理学→physical adj .物理的；物理学的；体力的4．extinct adj .灭绝的；绝种的→extinction n ．灭绝；绝种5．weightlessly ad v .失重地→weightless adj .失重的[巧记单词]Ⅲ.补全短语1．block out 挡住(光线)2．break out 突发；爆发3．cheer up 感到高兴；感到振奋4．now that 既然5．watch out (for) 密切注视；当心；提防6．get the hang of 熟悉；掌握；理解1．[教材原句]When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's.当我们更接近月球时，就会感到月球的引力在拉我们。

高一英语必修三导学案Unit 4语言要点（模块）Ⅰ. 词性变化（旨在提供语法填空所需材料）1. violent adj.强暴的，猛烈的; →____________ n.暴力，强暴；猛烈; →____________ adv. 强暴地；猛烈地2. fundamental adj.基本(础)的n.[pl.]基本原则(法则) ; →____________ adv. 基本地；根本地; →____________ n. 基础；根本3. development n.生长，发展；新情况; →____________ vt.发展；产生vi.生长；发展; →____________ adj. 发达的→____________ adj. 发展的4. prevent vt. 预防，防止; →____________ n.预防；阻止；妨碍; →____________ adj.可防止的5. gentle adj.和蔼的；轻柔的; →____________ adv.温和地；静静地6. physics n.物理，物理学; →____________ n.物理学家; →____________l adj.身体的；物理(学)的；物质的7.harmful adj. 有害的→____________（n.）伤害→____________（反义词）8.depend v. 依靠；依赖→____________ ( n.) →____________ (adj.) →____________（反义词）9.exist v. 存在；生存→____________ (n.)10.presence n. →____________ ( n. ;adj.; v. ) ) →____________ (缺席的；不到场的)11.disappoint v. 使失望；使落空→____________ (感到失望的) →____________ (令人失望的) →____________( n.)12.gradually adv. 逐渐地→____________ (adj.)13.puzzle n; 谜；难题；v. 使迷惑→____________ adj.( 感到迷惑的)→____________ adj. ( 令人迷惑的)Ⅱ. 重点短语梳理1. go _____ （时间）前进；推移；走过2. lay _____ 下蛋3._____ one’s turn 轮到某人4. block _____ 挡住（光线）5. get the hang _____ 熟悉；掌握；理解6. watch _____ 密切注视；当心；提防7. depend_____ 依靠；依赖8. _____time 及时；终于9. give birth_____ 产生；分娩10. cheer _____ 感到高兴；感到振奋11. _____that 既然12. break _____ 爆发；突发13 as a_____of由于……的结果14. get close _____ 靠近15. be harmful _____ 对……有害16. prevent …_____ 阻止，制止17._____one’s disappointment令某人失望的是18. cool _____ 冷却19. come_____ existence开始存在；产生Ⅲ.重点词汇（旨在提供词汇综合运用材料）1. lay vt. (laid, laid, laying) 把放下；摆设；铺(地毯) ；产(蛋)lay eggs 下蛋lay sth. aside 把某物放在一边；积蓄（钱）lay sth. down 把某物放下lay the blame on sb.责备某人lay the table 摆桌子lay emphasis / stress on sth. 把重点放在某事上[练习] 根据句子的意思在括号里填入适当的词或翻译。

Book3 Unit4 Period 6 编写：孙东夷3/10/2015 学习目标：A/B 1.复习并掌握本单元单词和词组 2.能拓展相关词汇并应用C 1复习并掌握本单元单词和词组2.能拓展相关词汇D.1. 复习并掌握本单元单词和词组Ⅰ.立体式复习单词A．基础单词1．________n．系统；体系；制度2．________n．宗教；宗教信仰3．________n．学说；理论4．________prep.不同，不像5．________vi.& vt.乘；增加6．________adv.因此，于是7．________n．万有引力；重力8．________adj.温和的；文雅的9．________n．气候10．________vi.& vt.碰撞，坠落11．________n．& vt.拉(力)，拖，牵引(力) 12．________vi.& vt.(使)浮动，(使)漂浮B．词汇拓展13．________adj.猛烈的；激烈的；强暴的→________n．暴力；暴行；剧烈14．________adj.基本的；基础的→________adv.根本上；完全地15．________adj.有害的→________n．危害；害处16．________vi.存在；生存→________n．存在，生存17．________n．谜；难题vt.& vi.(使)迷惑；(使)为难→________adj.令人迷惑的，困惑的→________adj.迷惑的，困惑的18．________n．地球，世界→________adj.全球性Ⅱ.递进式回顾短语A．短语互译1．________________及时，终于2．________________下蛋3．________________产生，分娩4．________________阻止，制止5．________________in one's turn 6．________________cheer up 7．________________break out 8．________________watch out 9．________________block out 10．________________now thatB．用上面短语的适当形式填空11．Do you know that crocodiles reproduce by__________？12．During the car accident，he was____________to escape from the car without being hurt. 13．The tall tree____________the sunlight.14．The war____________between the two countries.15．____________for wild animals when you go up the hills.Ⅲ.仿写式活用句型1．The earth became so_violent_that it was not clear whether the shape would last or not. 【句式仿写】他如此聪明以至于在如此短的时间就解出了那道题。

班级_______ _____________小组_________第一课时warming up & pre-reading 自主学习学案学习目标：1. 语言目标Language aims:2. 能力目标Ability aims:1) 进一步熟悉掌握一些阅读技巧，比方快速寻找文章细节信息(scanning)、归纳和总结〔summarizing〕。

2) 让学生学会表达自己的思想。

3)情感目标Emotional aims: 让学生弄清楚什么是科学思想，什么是宗教信仰或文化传统。

在探讨生命的起源的科学道理之前，交流一下有关宇宙的起源的种种传说,调动学生的相关知识，激活学生的思维。

重点key points:Talk about the beginning of life on the earth.b. Discuss the order of development of life难点important points:Understand the beginning of life on the earth.Step I some questions in warming up1. How much do you know about the universe"What are they"______________________________________________________________________________________________ ________________________________________________________________________2. Who is the first man landing on the moon"___________________________________________________________________________________Step II pre-readingTask one: Fill in the blanks after listening1) According to a widely accepted theory, the universe began with a "___________〞that threw matter in all directions.2) It was not immediately obvious that ________was to be fundamental to the development of______.3) They are putting too much CO2 into the atmosphere, which prevent _____from escaping from the earth.Task two: careful readingand write down the main idea.paragraph 1: _________________________________________.paragraph 2: The formation of _______________________________________.paragraph 3:The importance of ____________________________________.paragraph 4: __________________________of plants and animals on the earth.paragraph 5: ______________________ of humans and their impact on the earth.Task three : Put the order of development of life into a timeline.1 Insects and amphibians appeared2 Dinosaurs appeared3 The earth became a solid ball4 Small plants greaw on the water5 Reptiles appeared6 Plants began to grow on dry land.7 The earth was a cloud of dust. 8 Water appeared on the earth9 Shellfish and other fish appeared. 10 The universe began with a "Big Bang〞11 Clever animals with hands and feet appeared. 12 Mammals appeared.Answers: __________________________________________________Task Four: summaryAfter the "Big Bang〞, the earth was just a cloud of dust. It __________ loudly with fire and rock, which were ____ ___________to produce the water vapour, ___________ and other gases. Then small plants grew . They ___________and filled the oceans and seas with oxygen. Many millions of years later the first green plants began to ________on land. When the plants grew into forests,________ appeared for the first time. They produced young generally by _________eggs. When dinosaurs disappeared, __________ became more important. Now small clever animals with _____________appeared and ________all over the world. As time ________ they covered the earth and they are putting too much carbon dioxide into the __________, which ________heat ____ ________ from the earth into space. Whether life will continue on earth for millions of years to come will _____________whether this problem can be solved.Language points :1.However , according to a widely accepted theory, the universe began with a " Big Bang〞that threw matter in all directions.in all directions = in every direction 向四面八方He walked ____________________ the village. 他向村庄方向走去。

Book3 Unit4 Period 6编写：孙东夷3/10/2015学习目标： A/B 1. 复习并掌握本单元单词和词组 2. 能拓展相关词汇并应用C 1 复习并掌握本单元单词和词组 2. 能拓展相关词汇. 复习并掌握本单元单词和词组Ⅰ . 立体式复习单词A．基础单词1． ________n ．系统；体系；制度8． ________adj. 温和的；文雅的2． ________n ．宗教；宗教信仰9． ________n．气候3． ________n ．学说；理论10．________vi.& vt. 碰撞，坠落4． ________prep. 不同，不像11．________n．& vt. 拉 ( 力) ，拖，牵引 ( 力) 5． ________vi.& vt. 乘；增加12． ________vi.& vt.( 使)浮动， (使)漂6． ________adv. 因此，于是浮7． ________n ．万有引力；重力B．词汇拓展13． ________adj. 猛烈的；激烈的；强暴的→________n．暴力；暴行；剧烈14． ________adj. 基本的；基础的→ ________adv . 根本上；完全地15． ________adj. 有害的→ ________n．危害；害处16． ________vi. 存在；生存→ ________n．存在，生存17． ________n．谜；难题vt.& vi.(使)迷惑；(使)为难→ ________adj.令人迷惑的，困惑的→ ________adj. 迷惑的，困惑的18． ________n．地球，世界→ ________adj. 全球性Ⅱ . 递进式回顾短语A．短语互译1． ________________ 及时，终于6． ________________cheer up2． ________________ 下蛋7． ________________break out3． ________________ 产生，分娩8． ________________watch out4． ________________ 阻止，制止9． ________________block out5． ________________in one's turn10．________________now thatB．用上面短语的适当形式填空11． Do you know that crocodiles reproduce by__________12．During the car accident，he was____________to escape from the car without being hurt.13． The tall tree____________the sunlight.14． The war____________between the two countries.15． ____________for wild animals when you go up the hills.Ⅲ . 仿写式活用句型1． The earth became so_violent_that it was not clear whether the shape would lastor not.【句式仿写】他如此聪明以至于在如此短的时间就解出了那道题。

2019-2020学年高中英语人教版必修三Unit 4 Astronomy: the science of the stars—Reading学案主编：审核：编号：3401班级：______ 姓名：________ 使用日期：_________【学习目标】：1. To learn some useful words and expressions in the text.2. To learn the development of life.3. To improve some reading skills, and learn the organization of the text.4. Train Ss’ interests in science and stimulate their love for astronomy.【教学重点】：1. Get the Ss to know the development of life.2. To improve the student s’ reading ability.【Teaching procedures】课前预习【Pre-Class】：Vocabulary learning. 【Write and Read】I.单词检测1．__________ n．天文学2．__________ n．系统；体系；制度3．__________ n．宗教；宗教信仰__________ adj.宗教的；信仰宗教的4．__________ n．学说；理论5．__________ adj.猛烈的；激烈的；强暴的__________ n．暴力6．__________ n．大气层；气氛7．__________ prep.与……不同；不像8．__________ adj.基本的；基础的9．__________ adj.有害的__________ n. &vt.伤害；损害10．__________ n．链子；连锁；锁链11．__________ vi.&vt.乘；增加12．__________ vi.生存；存在__________ n．存在13．__________ adv.因此；于是14．__________ n．迷；难题；vt.&vi.(使)迷惑；(使)为难II. 重点短语1．____________依靠；依赖；取决于2．___________ 及时；终于3．____________ 各种各样的4．_____________ 下蛋5. ________________ 产生；分娩6．_____________ 轮到某人7．________________ 阻止；制止【课堂探究】Step1 lead in-warming up1. In our solar system eight planets circle around the sun. What are they?(Note：According to the present day scientific study, there are only eight planets, with the Pluto excluded.) Keys: The Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.2. Each religion and culture has its own ideas about how life began on earth. What do you know?Step2 Pre-reading1.The origin of life on earth is a question that interests astronomers. What do you know about the scientific theory on the earth?2. Read the title and predict what the reading will be about, then check if you are right.Step3 Reading ComprehendingI. Skimming-Skim the passage and match the main idea with each paragraph.Para. 1 _____ A．The formation(形成) of the earth.Para. 2 _____ B．The importance of water for life.Para. 3 ______ C．A widely accepted theory about the formation of the universe.Para. 4 ______ D．The arrival of humans and their impact on the earth.Para. 5 _______ E．The development of plants and animals on the earth.Ⅱ. True(T) or False(F)．1．It was not until between 4. 5 and 3. 8 billion years ago that people knew what the earth was to become. ( ) 2．Water began to appear on the surface of the earth before gases were produced. ( )3．The global warming will have a great effect on human beings. ( )Ⅲ. Choose the best answer according to the text.1．What began to appear on the earth's surface when it cooled down?A．Water. B．Gases. C．Acids.2．From the last paragraph we can infer that the author is ________.A．confident B．sad C．concerned3．What does the word “they” in the sentences “It exploded loudly with fire and rock. They were in time to produce carbon dioxide，nitrogen，water vapour and. . .” refer to?A．Planets. B．Fire and rock. C．Gases.4．Which is the right order of the development of life?A．Small clever animals→shellfish→dinosaurs→mammals.B．Shellfish→dinosaurs→small clever animals→mammals.C．Shellfish→dinosaurs→mammals→small clever animals.5．Why were mammals different from other life forms?A．Because they gave birth to young baby animals and produced milk to feed them.B．Because they produced young generally by laying eggs.C．Because they were able to live on land as well as in the water.IV. Fill in the blanks according to the text.【课堂巩固练习】Fill in the blanks according to the reading passage.For several billion years after the “Big Bang” ，the earth was just 1._____ cloud of dust. Between 4. 5 and 3. 8 billion years ago，the dust settled into a solid globe. The earth became so violent and it exploded loudly with fire and rock. They were in time 2. __________(produce) many things，which were to make the earth's atmosphere. As the earth cooled down，water began to appear on 3.______ surface. The continued presence of water allowed the earth to dissolve 4.__________ (harm) gases and acids into the oceans and seas. This produced a chain reaction，which made 5._________ possible for life to develop. Many millions of years later，the first extremely small plants multiplied and filled the oceans and seas 6. _________ oxygen. This encouraged the later 7.____________(develop) of early shellfish and all sorts of fish. Finally，some small clever animals，now with hands and feet ，appeared and spread all over the earth. They are putting too much carbon dioxide into the atmosphere, 8. _________ prevents heat from escaping from the earth into space. 9. _______ life will continue on the earth for millions of years to come will depend on whether this problem can 10. ____ ( solve ).Unit 4 Astronomy: the science of the stars—Reading学案参考答案Step1 Vocabulary learningⅠ. 单词检测1．astronomy n．天文学2．system n．系统；体系；制度3．religion n．宗教；宗教信仰religious adj. 宗教的；信仰宗教的4．theory n．学说；理论5．violent adj. 猛烈的；激烈的；强暴的violence n．暴力6．atmosphere n．大气层；气氛7．unlike prep. 与……不同；不像8．fundamental adj. 基本的；基础的9．harmful adj. 有害的harm n. &vt. 伤害；损害10．chain n．链子；连锁；锁链11．multiply vi. &vt. 乘；增加12．exist vi. 生存；存在existence n．存在13．thus adv. 因此；于是14．puzzle n．迷；难题；vt. &vi. (使)迷惑；(使)为难Ⅱ. 短语默写1．depend on依靠；依赖；取决于2．in time及时；终于3．all sorts of各种各样的4．lay eggs下蛋5．give birth to 产生；分娩6．in one's turn 轮到某人7．prevent. . . from 阻止；制止Step3 Reading ComprehendingⅠ. Match the main idea with each paragraph.Para. 1(C) A．The formation(形成) of the earth.Para. 2(A) B．The importance of water for life.Para. 3(B) C．A widely accepted theory about theformation of the universe.Para. 4(E) D．The arrival of humans and their impact on the earth.Para. 5(D) E．The development of plants and animals on the earth.Ⅱ. True(T) or False(F)．1．It was not until between 4. 5 and 3. 8 billion years ago that people knew what the earth was to become. (T) 2．Water began to appear on the surface of the earth before gases were produced. (F)3．The global warming will have a great effect on human beings. (T)Ⅲ. Choose the best answer according to the text.1．What began to appear on the earth's surface when it cooled down?A．Water. B．Gases. C．Acids.答案 A2．From the last paragraph we can infer that the author is ________.A．confident B．sad C．concerned答案 C3．What does the word “they” in the sentences “It exploded loudly with fire and rock. They were in time to produce carbon dioxide，nitrogen，water vapour and. . .” refer to?A．Planets. B．Fire and rock. C．Gases.答案 B4．Which is the right order of the development of life?A．Small clever animals→shellfish→dinosaurs→mammals.B．Shellfish→dinosaurs→small clever animals→mammals.C．Shellfish→dinosaurs→mammals→small clever animals.答案 C5．Why were mammals different from other life forms?A．Because they gave birth to young baby animals and produced milk to feed them.B．Because they produced young generally by laying eggs.C．Because they were able to live on land as well as in the water.答案 AIV．Fill in the blanks according to the text.【课堂巩固练习】Fill in the blanks according to the reading passage.For several billion years after the “Big Bang” ，the earth was just 1._____ cloud of dust. Between 4. 5 and 3. 8 billion years ago，the dust settled into a solid globe. The earth became so violent and it exploded loudly with fire and rock. They were in time 2. __________(produce) many things，which were to make the earth's atmosphere. As the earth cooleddown，water began to appear on 3.______ surface. The continued presence of water allowed the earth to dissolve 4.__________ (harm) gases and acids into the oceans and seas. This produced a chain reaction，which made 5._________ possible for life to develop. Many millions of years later，the first extremely small plants multiplied and filled the oceans and seas 6._________ oxygen. This encouraged the later 7.____________(develop) of early shellfish and all sorts of fish. Finally，some small clever animals，now with hands and feet ，appeared and spread all over the earth. They are putting too much carbon dioxide into the atmosphere, 8. _________ prevents heat from escaping from the earth into space. 9. _______ life will continue on the earth for millions of years to come will depend on whether this problem can10.____________( solve ).参考答案：1. a 2. to produce 3. its 4. harmful 5. it 6. with7. development 8. which 9. Whether 10. be solved。

2019-2020学年高中英语人教版必修三Unit 4 Astronomy: the science of the stars—Reading学案主编：审核：编号：3401班级：______ 姓名：________ 使用日期：_________【学习目标】：1. To learn some useful words and expressions in the text.2. To learn the development of life.3. To improve some reading skills, and learn the organization of the text.4. Train Ss’ interests in science and stimulate their love for astronomy.【教学重点】：1. Get the Ss to know the development of life.2. To improve the student s’ reading ability.【Teaching procedures】课前预习【Pre-Class】：Vocabulary learning. 【Write and Read】I.单词检测1．__________ n．天文学2．__________ n．系统；体系；制度3．__________ n．宗教；宗教信仰__________ adj.宗教的；信仰宗教的4．__________ n．学说；理论5．__________ adj.猛烈的；激烈的；强暴的__________ n．暴力6．__________ n．大气层；气氛7．__________ prep.与……不同；不像8．__________ adj.基本的；基础的9．__________ adj.有害的__________ n. &vt.伤害；损害10．__________ n．链子；连锁；锁链11．__________ vi.&vt.乘；增加12．__________ vi.生存；存在__________ n．存在13．__________ adv.因此；于是14．__________ n．迷；难题；vt.&vi.(使)迷惑；(使)为难II. 重点短语1．____________依靠；依赖；取决于2．___________ 及时；终于3．____________ 各种各样的4．_____________ 下蛋5. ________________ 产生；分娩6．_____________ 轮到某人7．________________ 阻止；制止【课堂探究】Step1 lead in-warming up1. In our solar system eight planets circle around the sun. What are they?(Note：According to the present day scientific study, there are only eight planets, with the Pluto excluded.) Keys: The Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.2. Each religion and culture has its own ideas about how life began on earth. What do you know?Step2 Pre-reading1.The origin of life on earth is a question that interests astronomers. What do you know about the scientific theory on the earth?2. Read the title and predict what the reading will be about, then check if you are right.Step3 Reading ComprehendingI. Skimming-Skim the passage and match the main idea with each paragraph.Para. 1 _____ A．The formation(形成) of the earth.Para. 2 _____ B．The importance of water for life.Para. 3 ______ C．A widely accepted theory about the formation of the universe.Para. 4 ______ D．The arrival of humans and their impact on the earth.Para. 5 _______ E．The development of plants and animals on the earth.Ⅱ. True(T) or False(F)．1．It was not until between 4. 5 and 3. 8 billion years ago that people knew what the earth was to become. ( ) 2．Water began to appear on the surface of the earth before gases were produced. ( )3．The global warming will have a great effect on human beings. ( )Ⅲ. Choose the best answer according to the text.1．What began to appear on the earth's surface when it cooled down?A．Water. B．Gases. C．Acids.2．From the last paragraph we can infer that the author is ________.A．confident B．sad C．concerned3．What does the word “they” in the sentences “It exploded loudly with fire and rock. They were in time to produce carbon dioxide，nitrogen，water vapour and. . .” refer to?A．Planets. B．Fire and rock. C．Gases.4．Which is the right order of the development of life?A．Small clever animals→shellfish→dinosaurs→mammals.B．Shellfish→dinosaurs→small clever animals→mammals.C．Shellfish→dinosaurs→mammals→small c lever animals.5．Why were mammals different from other life forms?A．Because they gave birth to young baby animals and produced milk to feed them.B．Because they produced young generally by laying eggs.C．Because they were able to live on land as well as in the water.IV. Fill in the blanks according to the text.【课堂巩固练习】Fill in the blanks according to the reading passage.For several billion years after the “Big Bang” ，the earth was just 1._____ cloud of dust. Between 4. 5 and 3. 8 billion years ago，the dust settled into a solid globe. The earth became so violent and it exploded loudly with fire and rock. They were in time 2. __________(produce) many things，which were to make the earth's atmosphere. As the earth cooled down，water began to appear on 3.______ surface. The continued presence of water allowed the earth to dissolve 4.__________ (harm) gases and acids into the oceans and seas. This produced a chain reaction，which made 5._________ possible for life to develop. Many millions of years later，the first extremely small plants multiplied and filled the oceans and seas 6. _________ oxygen. This encouraged the later 7.____________(develop) of early shellfish and all sorts of fish. Finally，some small clever animals，now with hands and feet ，appeared and spread all over the earth. They are putting too much carbon dioxide into the atmosphere, 8. _________ prevents heat from escaping from the earth into space. 9. _______ life will continue on the earth for millions of years to come will depend on whether this problem can 10. ____ ( solve ).Unit 4 Astronomy: the science of the stars—Reading学案参考答案Step1 Vocabulary learningⅠ. 单词检测1．astronomy n．天文学2．system n．系统；体系；制度3．religion n．宗教；宗教信仰religious adj. 宗教的；信仰宗教的4．theory n．学说；理论5．violent adj. 猛烈的；激烈的；强暴的violence n．暴力6．atmosphere n．大气层；气氛7．unlike prep. 与……不同；不像8．fundamental adj. 基本的；基础的9．harmful adj. 有害的harm n. &vt. 伤害；损害10．chain n．链子；连锁；锁链11．multiply vi. &vt. 乘；增加12．exist vi. 生存；存在existence n．存在13．thus adv. 因此；于是14．puzzle n．迷；难题；vt. &vi. (使)迷惑；(使)为难Ⅱ. 短语默写1．depend on依靠；依赖；取决于2．in time及时；终于3．all sorts of各种各样的4．lay eggs下蛋5．give birth to 产生；分娩6．in one's turn 轮到某人7．prevent. . . from 阻止；制止Step3 Reading ComprehendingⅠ. Match the main idea with each paragraph.Para. 1(C) A．The formation(形成) of the earth.Para. 2(A) B．The importance of water for life.Para. 3(B) C．A widely accepted theory about theformation of the universe.Para. 4(E) D．The arrival of humans and their impact on the earth.Para. 5(D) E．The development of plants and animals on the earth.Ⅱ. True(T) or False(F)．1．It was not until between 4. 5 and 3. 8 billion years ago that people knew what the earth was to become. (T) 2．Water began to appear on the surface of the earth before gases were produced. (F)3．The global warming will have a great effect on human beings. (T)Ⅲ. Choose the best answer according to the text.1．What began to appear on the earth's surface when it cooled down?A．Water. B．Gases. C．Acids.答案 A2．From the last paragraph we can infer that the author is ________.A．confident B．sad C．concerned答案 C3．What does the word “they” in the sentences “It exploded loudly with fire and rock. They were in time to produce carbon dioxide，nitrogen，water vapour and. . .” refer to?A．Planets. B．Fire and rock. C．Gases.答案 B4．Which is the right order of the development of life?A．Small clever animals→shellfish→dinosaurs→mammals.B．Shellfish→dinosaurs→small clever animals→mammals.C．Shellfish→dinosaurs→mammals→small clever animals.答案 C5．Why were mammals different from other life forms?A．Because they gave birth to young baby animals and produced milk to feed them.B．Because they produced young generally by laying eggs.C．Because they were able to live on land as well as in the water.答案 AIV．Fill in the blanks according to the text.【课堂巩固练习】Fill in the blanks according to the reading passage.For several billion years after the “Big Bang” ，the earth was just 1._____ cloud of dust. Between 4. 5 and 3. 8 billion years ago，the dust settled into a solid globe. The earth became so violent and it exploded loudly with fire and rock. They were in time 2. __________(produce) many things，which were to make the earth's atmosphere. As the earth cooleddown，water began to appear on 3.______ surface. The continued presence of water allowed the earth to dissolve 4.__________ (harm) gases and acids into the oceans and seas. This produced a chain reaction，which made 5._________ possible for life to develop. Many millions of years later，the first extremely small plants multiplied and filled the oceans and seas 6._________ oxygen. This encouraged the later 7.____________(develop) of early shellfish and all sorts of fish. Finally，some small clever animals，now with hands and feet ，appeared and spread all over the earth. They are putting too much carbon dioxide into the atmosphere, 8. _________ prevents heat from escaping from the earth into space. 9. _______ life will continue on the earth for millions of years to come will depend on whether this problem can10.____________( solve ).参考答案：1. a 2. to produce 3. its 4. harmful 5. it 6. with7. development 8. which 9. Whether 10. be solved。

高中英语人教版必修三教学案：含答案Unit-4-Section-3-[语法初识]]语法剖析[在主从复合句中充当主语的从句即为主语从句。

What made her happy was that she won thegame in such an important match. 令她高兴的是在这么重要的比赛中她获胜了。

It is decided that the meeting has been putoff till next Monday.已经定下来将会议推迟到下周一了。

1.连接词that和whether/if(1)that在从句中不充当任何句子成分，本身无任何意义，只起连接作用，但不可省略。

That we are invited to the concert thisevening is good news to us.我们被邀请去参加今晚的音乐会，这对我们来说是个好消息。

(2)whether/if在从句中不充当任何句子成分，起连接作用，意为“是否”，不可省略。

Whether the plan will be carried out is stillunknown.plan if/whether the It is still unknown ＝will be carried out. 这个计划是否会实施还不知道。

引导的主语从句既可放在]点津whether[引导的主语从句只能放但if句首也可放在句尾，作形式主语。

在句尾，前面需用it即时演练1 完成句子That_she_could_come_to_help_us ①made us very happy.她能来帮助我们使我们很高兴。

②Whether_he_can_finish_his_task_ on_time is ofgreat importance.他能否按时完成任务非常重要。

2．连接代词(who, whose, whom, what, which, whichever, whoever, whomever, whatever等)。

人教版新课标必修 3 Unit 4全单元精讲讲义Unit 4 Astronomy: the science of the starsⅠ. 要点导读重点单词1. This encouraged the development of early shellfish and all sorts of fish. (P26)development n. “发展；发达；出现；显影；开发”；其相应的动词是develop，常用搭配develop … into…，“把……发展成为……”；其形容词形式有developed (发达的；高度发展的)和developing (发展中的)eg: China is a developing country while America is a developed one.developed countries 发达国家developing countries 发展中国家2. Small clever animals, now with hands and feet, appeared and spread all over the earth. (P26)spread vt &vi. “展开；伸展；传播”，其过去式和过去分词都是spread，可用于表示具体的事物、消息、疾病等的传播；spread to“蔓延；传开”；spread over “蔓延；拖延”；spread out “铺开；展开”。

eg: In 20 years the city has spread quickly to the north.3. He was very disappointed. (P28)disappointed adj. “失望的；失意的；受挫的”，可在句中作表语、定语或宾补。

be disappointed at / about“对……感到失望”；be disappointed with“因为……而失望”。

教学过程一、课堂导入Play a game to learn the names and positions of theplanets:Venus is next to Mercury.Earth is the third planet.Mars is between Earth and Jupiter.Neptune is the furthest planet from the sun.Saturn is between Uranus and Jupiter.Mercury is closest to the sun.二、复习预习教师引导先生复习上节课所学知识点，（以发问、回顾的方式进行），针对上节课的作业进行讲评、订正、答疑，并经过对主语从句具体用法的分析和扩展导入本节课所要学习的课本知识的学习。

三、知识讲解考点/易错点1 重点单词与短语学习violent adj. 暴力的；猛烈的(回归课本P25)The earth became so violent that it was not clear whether the shape would last or not.[归纳拓展]violent criminals: 运用暴力的罪犯a violent attack: 猛烈的攻击a violent protest：强烈的抗议a violent struggle；激烈的斗争violent winds and storms 狂风暴雨violent toothache: 剧烈的牙痛in time及时；最初(回归课本P25)It exploded loudly with fire and rock. They were in time to produce carbon dioxide, nitrogen water vapor and other gases,which were to make the earth’s atmosphere.它（地球）巨大的爆炸喷出了烈火与岩石，毕竟产生了水蒸汽、二氧化碳、氧、氮和其他多种气体，从而构成了地球的大气层。

高中英语必修3Unit4Astronomy精品导学案（含答案解析）核心词汇1．Doyouthinkoureducation____________(制度)needsimproving?2．The____________(气候)ofsouthernFloridaattractsthousandsoftouristseachwinter. 3．Withoutpracticetherewouldbeno____________(理论)．4．Thehenwasoldanditstopped____________(下蛋)eggs.5.Theidea____________(存在)onlyinthemindsofusyoungpeople.6．ProfessorLihassolvedthe____________(难题)andeveryoneischeering.7．Mars’__________(万有引力)isonlyabout38%ofEarth’s. 8．Raisingyourchildtotellthedifferencebetweenrightandwrongisoneofthef____________tasksofpar enthood.9．用harm的适当形式填空(1)Airpollutionwillgetworseandthiswillbe____topeople，forexample，itcancausecancer.(2)Rubbishcanbechangedinto____________things.(3)Don’t____________youreyesbyreadinginthedimlight.10．Lastnightwehadadiscussion，whichbecamemoreandmore____________.Finallywereachedanagreementthatwewillneveruse___________ _whateverhappens.(violent)1.system2.climate3.theoryying5.exists6.puzzle7.gravity8.fundamental9.(1)harmful,(2)harmless (3)harm 10.violent；violence高频短语1．________________ 及时，终于2．________________下蛋3．________________产生；分娩4．________________轮到某人；接着5．________________阻止；制止6．________________挡住(光线)7．________________感到高兴；感到振奋8．________________既然9．________________突发；爆发10．________________密切注视；当心；提防1.intimeyeggs3.givebirthto4.inone’sturn5.prevent...from6.blockout7.cheerup8.nowthat,9.breakout 10.watchout重点句式1．________________wasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoas olidglobe.随后它会变成什么没有人知道，直到38～45亿年前，这团尘埃才慢慢地形成一个固体的球状物。