2017年上海市中考英语试卷(解析版)

2017年上海市中考英语试卷（解析版）
题号一二三四五六
得分
注意事项：1.本试卷共XX页，六个大题，满分140分，考试时间为1分钟。

请用钢笔或圆珠笔直接答在试卷上。

2.答卷前将密封线内的项目填写清楚。

一、单选题（共20分）
评卷人
得分
1．Which of the following underlined parts in different i n pronunciation？( )(1分)
A. fly
B. lazy
C. already
D. cloudy
2．Christine is selling her house，
but on ______ other hand she doesn't want to move.( ) (1分)
A. a
B. an
C. the
D. /
3．We won!The honor belongs ______ all the member of our team.( )(1分)
A. by
B. of
C. at
D. to
4．Shirley is still waiting for her flight to New York City ____ the airport.( )(1分)
A. at
B. under
C. on
D. with
5．The headmaster introduced ______ to the German visitors before the welcome party.( )(1分)
A. we
B. us
C. our
D. ours
6．_______ knowledge and experience are important to finis h that task.( )(1分)
A. Either
B. Neither
C. None
D. Both
7．Did the policeman give much _______ on how to protect personal information？( )(1分)
A. note
B. tip
C. advice
D. book
8．Alex believes he will soon be able to play chess as ______ as the computer.( )(1分)
A. well
B. better
C. best
D. the best
9．Nowadays people wish to have ______ food than before as their life improves.( )(1分)
A. healthy
B. healthier
C. healthiest
D. the healthiest
10．Some exchange students _______ with their host familie s this time yesterday.( )(1分)
A. are chatting
B. will chat
C. were chatting
D. have chatted
11．﹣Do you know ______ a 5﹣
day trip to Hong Kong costs？
﹣I guess it's abou t¥4，000.( )
(1分)
A. how fast
B. how long
C. how soon
D. how much
12．Several journalists _______ the lawyer about the inter national case an hour ago.( )(1分)
A. interview
B. interviewed
C. will interview
D. had interviewed
13．The museum _____ next month to celebrate the Science & Technology Festival.( )(1分)
A. is decorated
B. will decorate
C. is decorating
D. will be decorated
14．Vivian refuses ______ her children to the weekend tra ining centre for extra classes.( )(1分)
A. to send
B. sending
C. sent
D. sends
15．The workers are busy _______ windows to the new buil ding these days.( )(1分)
A. fix
B. fixed
C. fixing
D. to fix
16．﹣______ I park my car here for a while？
﹣No，you mustn't.Do you see the sign"NO PARKING"？( )
(1分)
A. Would
B. May
C. Must
D. Should
17．The two companies decided to work together ______ the y had common interest.( )(1分)
A. because
B. unless
C. but
D. or
18．Professor Tu Youyou never stops doing research on Chi nese medicine，______？( )(1分)
A. is she
B. does she
C. isn't she
D. doesn't she
19．﹣
Would you like to join me in making cakes tomorrow？
﹣______.( )
(1分)
A. It doesn't matter.
B. Don't worry.
C. You're welcome.
D. I'd love to.
20．﹣________.
﹣Congratulations!( )
(1分)
A. Sorry for breaking the glass.
B. How are you feeling today？
C. I was awarded first prize in the writing contest.
D. Why not take the underground to the university？
二、填空题（共8分）
评卷人
得分
21．A seat belt can help protect passengers in many car .(accident)(1分)
22．Last week the students went skating and enjoyed very much.(them)(1分)
23．My school is going to have an open day on the of next month.(ten)(1分)
24．Failure isn't always bad.It can teach you le ssons.(use)(1分)
25．For your ，
smoking is not allowed during the whole flight.(safe)(1分)
26．Our manager greeted the guest with a smile
at the entrance.(polite)(1分)
27．Scientists often that farmers use natural way s to grow fruits.(suggestion)(1分)
28．When they felt after the flood，
the charity offered them food and clothes.(help)(1分)
三、完形填空（共30分）
评卷人
得分
资
料The following are the posts in an Internet chat room .In this chat room，
parents talk about some of the problems they have with their children.
Ask 4 advice
Marisa
Is it ever OK to lie to a child？My 10﹣year﹣
old son plays soccer.He's not very good，
but he loves it.Yesterday he played very 1 .Whe n he finished the game，he asked，"Did I play well？
"I said，
"Yes!You're a great soccer player!"Did I do the right th ing？
Bay212
Yes，
you did the right thing.White lies are a(n) 2
part of life.Sometimes you have to tell lies that do no harm.Your purpose was to make him feel good.Now he's ready to play soccer again.
Bernie
I don't think there is ever a good reason to lie to our children.Children learn honesty from the 3 they see.As parents，
we should be honest in order to teach honesty to our c hildren.Every lie requires five more lies.If you keep hid ing truth from them，
they will not 4 you.They will not respect you.H onesty is the first step to a good parent﹣
child relationship.
Missy
You lied to make your son feel better，
but you 5 a good chance to teach him a life lesson.People should work hard for what they want.Maybe next time you can say，"No，
you didn't play well today.Great soccer players practise
a lot.Let's go and practise."The truth will take him
6 and a good soccer player.
Parviz
Parents should be honest to their children，
but they don't have to tell the whole truth.Next time w hen your son asks，"Did I play well？"you can say，"What do you think？
"Then your son can tell you what he thinks.That way，everything you say is true，
and you avoid truth that hurts.
29．(5分)
A. strong
B. confident
C. honest
D. active 30．(5分)
A. took
B. missed
C. created
D. found 31．(5分)
A. trouble
B. remember
C. answer
D. trust 32．(5分)
A. films
B. details
C. examples
D. teachers 33．(5分)
A. necessary
B. difficult
C. dishonest
D. interesting 34．(5分)
A. seriously
B. carefully
C. happily
D. badly
四、阅读理解（共30分）
评卷人
得分
资
料
35．The main purpose of the advertisement is to . (5分)
A. find excellent writers
B. attract more book buyers
C. celebrate Children's Day
D. introduce new reading courses.
36．If you spend 65，
you will get a chance to win .(5分)
A. an e﹣dictionary
B. a 10 gift card
C. Nobel membership
D. a concert ticket
37．The underlined word"renowned"means .(5分)
A. new
B. young
C. humourous
D. famous
38．will help you know more about the most po pular books this year.(5分)
A. Claire Tay
B. Michael Hawes
C. David Koh
D. Kate White
39．You can get the biggest discount on .(5分)
A. adults'story books
B. all magazines
C. children's picture books
D. all textbooks
40．April is the birthday month of .(5分)
A. Nobel Book Store
B. Fanta Centre
C. Retro Mall
D. Winkle Mall
五、句型转换（共14分）
评卷人
得分
41．The invention of smart phones changed the world in m any ways.(改为一般疑问句)
the invention of smart phones the wor ld in many ways？
(2分)
42．That amusement park has lots of tourists during the holiday.(就划线部分提问)
that amusement park have lots of tourist？
(2分)
43．The local government organizes the film festival every autumn.(改为被动语态)
The film festival by the local government every autumn.
(2分)
44．Shared﹣bikes are very popular in some big cities.(改为感叹句)
shared﹣bikes are in some big cities!
(2分)
45．"Have you ever been in a hot air ballon？
"Melissa asked her mom.(改为宾语从句)
Melissa asked her mom she ever been in a hot air ballon.
(2分)
46．PM 2.5 does harm to people's health and the environm ent.(保持句意基本不变)
PM 2.5 is people's health and the environment.
(2分)
47．enables，various information，the Internet，to collet，teenagers(连词成句)
.
(2分)
六、短文填词（共38分）
评卷人
得分
48．
Nowadays more and more people prefer to go fishing or h iking in the woods.Experiencing nature is (46) ，but when you're doing this，
always keep yourself safe.It's important to remember sever al basic rules if you don't want to turn a pleasant ou ting into a(47) .
First，
be fully prepared for different weather.Before you set ou t，always get warm clothes and raincoats ready，
just in case!This is especially true in the (48)
of travelling in the mountain areas.The weather is really (49) in high mountains.Sometimes you can experi ence two or three seasons in one day.
(4分)
49．
Second，(50) a map，a compass，
and a flashlight in your bag.Even experienced travelers g et lost.Before you start your trip，
study the map to get familiar with the area you are go ing to.The flashlight is important if you do get lost.Ma ny trips that start out in daylight will (51)
become nighttime adventures when people can't find their way.
Third，bring a first﹣
aid kit and know how to use it.Small cuts can be more serious when there is no doctor(52) .
Finally，
tell people where you are going and when you plan to c ome back.That way，
someone will go search for you if troubles(53) .T his will increase your chance of being found quickly.
(4分)
资
料It was Saturday again.Grace and Karen disliked Saturda ys.That was another thing the twins had in common.They s hared the same clothes and tied their hair in the same manner.In fact，
it was hard for their classmates and teachers to tell t hem apart sometimes.
Unlike their classmates，
they had to get up early at seven every Saturday to pr epare for their lessons.Grace had to attend the art less on and Karen had to attend her ballet lesson."How I wis h I could do something different today，
"said the twins with one voice.All at once，
an idea came to Grace and Karen at the same time."How would you like to be me for a day？
"they asked each other.It seemed like a wonderful plan t o them.After giving each other a description of their ow n friends，
Grace put on Karen's ballet dress while Karen put Grace' s brushes and paints into her bag.Then they left for th eir classes.
When the art lesson started，Karen was lost.Unlike Grace，Karen was poor at drawing.When the art lesson finally en ded，Karen didn't dare to hand in her work.
Meanwhile，
Grace was struggling in the ballet class as well.As she had no idea about the dance steps，
she had to follow her classmates blindly.As a result，
she kept knocking into them.Their ballet teacher became i mpatient with her，"Karen，
you should remember the basic steps.You can't rely on co pying what others are doing."
When Karen and Grace got home，
they were tired out.They decided that they would never t ry to be someone else they were not.It seemed that the grass was not always greener on the other side.
50．What does the underlined part"the grass was not alway s greener on the other side"at the end of the story tr y to tell us？.(5分)
51．Why did the ballet teacher become impatient？(5分)
52．How did Karen feel at the beginning of the art less on？(5分)
53．What was the twins'plan when they decided to do some thing different？(5分)
54．When did the twins get up on Saturdays？(5分)
55．Did Grace and Karen like Saturdays？(5分)
******答案及解析******
一、单选题（共20分）
1．答案：A
解析：四个单词的音标分别是fly[flaɪ]，lazy['leɪzi]，already[ɔ：l'redi]，cloudy['klaʊdi]可知B，C，D划线部分发音都是/ɪ/，A选项中划线部分发音/aɪ/，故选A.
2．答案：C
解析：考查定冠词.句意：克里斯汀正在出售她的房子，但另一方面她不想搬走.根据题干Christine is selling her house，
but on ______ other hand she doesn't want to move.可知
on the other hand 另一方面，固定短语.即克里斯汀正在出售她的房子，但另一方面她不想搬走.故选C.
3．答案：D
解析：by表示通过；of表示…的；at表示在…；to表示到，向.短语belong to表示属于，这是一个固定搭配，所以选D.
4．答案：A
解析：A表示在…，通常表示在小地点，如在家，在车站，在机场；B表示在…下；C表示在…上；D表示和，有.由the airport可知在机场，选A.
5．答案：B
解析：考查人称代词.句意：欢迎会之前，校长把我们介绍给了德国的访问者.we我们，主格，在句子中作主语；us我们，宾格，在句中做宾语；our 我们的，形容词性物主代词，后接名词；ours我们的，名词性物主代词，只能单独使用.根据题干
The headmaster introduced ______ to the German visitors b efore the welcome party.可知introduce sb to sb，把某人介绍给某人.这里用us作宾语，即欢迎会之前，校长把我们介绍给了德国的访问者.故选B.
6．答案：D
解析：either表示两者中的一个；neither表示两者都不；none表示三者及以上都不；both表示两者都.both…and…表示都，此处表示的是知识和经验对完成那个任务来说同样重要，两者都重要要用both，选D.
7．答案：C
解析：考查名词词义辨析.句意"那个警察对如何保护个人信息给出了很多建议吗？"note笔记.tip小费.advice建议.book书.根据题干
Did the policeman give much _______ on how to protect p ersonal information？可知句意应为那个警察对如何保护个人信息给出了很多建议吗？much应修饰不可数名词advice.其他选项都是可数名词，意思也不相符.故选C.
8．答案：A
解析：考查副词的原级比较.句意"亚历克斯相信他很快就能和计算机一样下棋下得好.".A好，副词.B更好，比较级.C最好，前面通常加the.D最好，最高级.as…as…"与…一样"，中间用副词原级，答案是A.
9．答案：B
解析：考查形容词的比较级和最高级.句意：随着他们的生活改善，现在人们希望吃比以前更健康的食物.healthy健康的，形容词；healthier比较级；healthiest最高级.根据题干
Nowadays people wish to have ______ food than before as their life improves.可知than用于比较级，即随着他们的生活改善，现在人们希望吃比以前更健康的食物.故选B.
10．答案：C
解析：考查时态.句意"昨天这个时候一些交换生正在和他们的寄宿家庭聊天.".A现在进行时态.B一般将来时态.C过去进行时态.D现在完成时态.由this time yesterday昨天这个时候，可知，表示过去某一时间正在进行的动作，用过去进行时态.结构是was/were+动词的现在分词.主语是students复数，用were.chat的现在分词是chatting.答案是C.
11．答案：D
解析：考查数量.句意：﹣﹣你知道5天的香港之行要多少钱吗？﹣﹣我猜它大约是4000元.how fast多快；how long多长；how soon多久；how much多少，对数量或价格的提问.根据题干
I guess it's abou t¥4，000.我猜它大约是4000元.可知应问的是价格，即你知道5天的香港之行要多少钱吗？故选D.
12．答案：B
解析：考查时态.句意"几位记者一小时前就这件国际案件采访了律师.".A 动词原形.B过去时.C一般将来时态.D过去完成时态.由an hour ago一小时前，可知，应该是一般过去时态，因此谓语动词用过去式interviewed采访.答案是B.
13．答案：D
解析：考查时态.句意"博物馆下个月将要被装饰为了庆祝科技节.".A一般现在时态的被动语态.B一般将来时态.C现在进行时态.D一般将来时态的被动语态.由next month下个月，可知应该是一般将来时态.因此A，C不正确.主语museum博物馆，是动作decorate装饰，的承受者，因此用一般将来时态的被动语态，结构是will be+动词的过去分词.B不正确.答案是D.
14．答案：A
解析：考查不定式短语.句意：Vivian 拒绝送她的孩子们去周末培训中
心补课. refuse to do sth 拒绝做某事.根据题干
Vivian refuses ______ her children to the weekend trainin
g centre for extra classes.可知应说Vivian 拒绝送她的孩子们去
周末培训中心补课.故选A.
15．答案：C
解析：根据
The workers are busy _______ windows to the new building these days.可知工人们最近忙着给新大楼安装窗户.句子中
be busy doing表示忙于做某事，后面跟动词的ing形式.故选C.
16．答案：B
解析：考查情态动词.句意：﹣﹣我可以把车在这个停一会吗？﹣﹣不，
你不能.你看到"禁止停车"这个标志了吗？Would将；may可以，表示请求；must必须；should应该.根据题干﹣
______ I park my car here for a while？可知表示一种请求，
即我可以把车在这个停一会吗？故选B.
17．答案：A
解析：考查连词辨析.句意：两家公司决定一起合作，因为他们有共同的
利益.because因为；unless除非；but但是；or或者.根据题干
The two companies decided to work together和
they had common interest.可知上下两句是因果关系，所以用because.故选A.
18．答案：B
解析：考查反意疑问句.句意"屠呦呦教授从没有停止做中医药研究，是吗？".反意疑问句通常遵循前肯后否，或前否后肯的原则.前句never从未，否
定形式，因此疑问部分用肯定形式，由stops实义动词的第三人称单数可知，用助动词does.Tu Youyou女子名，用she代替.答案是B.
19．答案：D
解析：考查常用日常交际用语.句意：﹣﹣明天你愿意和我一起做蛋糕吗？﹣﹣我愿意.It doesn't matter.没关系；Don't worry.别担心；
You're welcome.别客气；I'd love to.我愿意.根据题干
Would you like to join me in making cakes tomorrow？明天
你愿意和我一起做蛋糕吗？可知结合选项，应说我愿意.故选D.
20．答案：C
解析：考查常用日常交际用语.句意：﹣﹣我在写作比赛中获得一等奖.﹣﹣祝贺.Sorry for breaking the glass.很抱歉打破了玻
璃.How are you feeling today？你今天感觉如何？
I was awarded first prize in the writing contest.我在写作比赛中获得一等
奖.Why not take the underground to the university？为什么
不乘地铁去大学？根据回答Congratulations!祝贺.可知应说我在写作比赛中获得一等奖.故选C.
二、填空题（共8分）
21．答案：accidents
解析：根据
A seat belt can help protect passengers in many car﹣
﹣.(accident)可知安全带在许多车祸中有助于保护乘客.这里many表示许多，后面跟名词复数形式.故填accidents.
22．答案：themselves
解析：根据Last week the students went skating and enjoyed ﹣﹣very much.(them)可知上周学生们去滑冰，玩得很开心.句子中
enjoy oneself表示玩的高兴的意思，这里和the students 保持一致，应该用themselves，故填themselves.
23．答案：tenth
解析：根据
My school is going to have an open day on the﹣﹣
of next month.(ten)可知我们学校下个月的10号将会有一个开放日.这里表示日期，应该用序数词形式，故填tenth.
24．答案：useful
解析：根据Failure isn't always bad.It can teach you﹣﹣lessons.可知失败并不总是坏事，它能教给你有用的教训.lessons是个名词复数形式，前面应该用形容词，useful，形容词，有用的.故填useful.
25．答案：safety
解析：根据For your﹣﹣，
smoking is not allowed during the whole flight.(safe)可知
为了您的安全，在整个飞行过程中不允许吸烟.这里your是个形容词性物主代词，后面应该跟名词形式，safety，名词，安全.故填safety.
26．答案：politely
解析：根据Our manager greeted the guest﹣﹣
with a smile at the entrance.(polite)可知我们的经理在入口处
微笑着礼貌地向客人致意.这里修饰动词应该用副词形式，politely，副词，有礼貌地，故填politely.
27．答案：suggest
解析：根据Scientists often﹣﹣
that farmers use natural ways to grow fruits.(suggestion)
可知科学家们经常建议农民用自然的方法种植水果.句子缺少谓语，所以这
里应该用一个动词形式，often表示经常，通常用于一般现在时之中，suggest，动词，建议.故填suggest.
28．答案：helpless
解析：根据When they felt﹣﹣after the flood，
the charity offered them food and clothes.(help)可知当洪水
过后他们感到无助时，慈善组织给他们提供了食物和衣服.这里feel是个系动词，后面跟形容词形式，再根据after the flood，可知洪水过后应该
是感到无助，所以用helpless，形容词，无助的.故填helpless.
三、完形填空（共30分）
29．答案：A
解析：A表示强的；B表示自信的；C表示诚实的；D表示积极的.由
Let's go and practise可推测此处表示真相会使他变强大，并成为优秀的足球运动员，选A.
30．答案：B
解析：A表示带走；B表示错过；C表示创造；D表示发现.结合语境可知
此处表示但是你错过了给他上关于生活的一课的好机会，选B.
31．答案：D
解析：A表示麻烦；B表示记得；C表示回答；D表示信任.由
If you keep hiding truth from them可知此处表示他们就不会信
任你了，选D.
32．答案：C
解析：A表示电影；B表示细节；C表示例子；D表示老师.由
I don't think there is ever a good reason to lie to o
ur children可知此处表示孩子们在他们看见的实例中来学会诚实，选C.
33．答案：A
解析：A表示必要的；B表示难的；C表示不诚实的；D表示有趣的.由Sometimes you have to tell lies that do no harm可知此处
表示善意的谎言是生活的一部分，选A.
34．答案：D
解析：A表示严格地；B表示仔细地；C表示开心地；D表示不好地.由When he finished the game，he asked，"Did I play well？
"I said，"Yes!You're a great soccer player!"以及Marisa的疑问Did I do the right thing和
Is it ever OK to lie to a child可知他踢得不好，选D.
四、阅读理解（共30分）
35．答案：B
解析：本文是书店做的一系列的优惠活动，是为了吸引更多的购物者，故选B.
36．答案：B
解析：根据Spend over 50andgetachancetowina10 gift card.可知花65可以获得十美元的礼物卡，故选B.
37．答案：D
解析：根据第二个表格的最后一项是Ask and Answer可知是访谈，再看后面一列可知Kate White是
winner of many international awards是国际奖项的获得者，可知是和名人面对面访谈，故renowned表示著名的famous，故选D.
38．答案：C
解析：根据第二个表格的第三项
the most popular books this year可知是David Koh 可以帮助你了解更多今年最受欢迎的书，故选C.
39．答案：C
解析：根据第一个表格的四个数据可知孩子们的图画书优惠最大30%，故选C.
40．答案：A
解析：根据广告的大标题可知四月是Nobel Book Store开业三十年，故选A.
五、句型转换（共14分）
41．答案：Did；change
解析：考查一般疑问句.由changed过去式，可知，原句是一般过去时态，含有实义动词，变一般疑问句在句首用助动词did，实义动词变原形change.答案是Did；change.
42．答案：When does
解析：考查划线部分提问.根据during the holiday在假期期间，可知，对时间提问用疑问词when什么时候，后跟一般疑问句，含有实义动词has，主语是amusement park游乐园，单数，变一般疑问句用助动词does.答案是When does.
43．答案：is organized
解析：考查被动语态.由organizes 组织，第三人称单数，可知是一般现在时态的被动语态，结构是is/am/are+动词的过去分词.主语是
The film festival电影节，单数，因此用be动词单数anize的过去分词是organized.答案是is organized.
44．答案：How popular
解析：考查感叹句.句意"﹣﹣共享自行车在一些大城市很受欢迎.﹣﹣在一些大城市共享自行车是多么受欢迎啊！".感叹句可以用how+形容词+主语+谓语+其它，或What a/an+形容词+名词+主语+谓语+其它，来表示，这里用how，形容词用popular受欢迎的.答案是How popular.
45．答案：if；had
解析：考查宾语从句.直接引语为一般疑问句时，变宾语从句用if引导，意思是"是否".直接引语是现在完成时态，宾语从句中的从句用过去完成时态，因此用助动词had.答案是if；had.
46．答案：harmful to
解析：考查同义句."PM 2.5对人们的健康和环境有害."，可以表达为"PM 2.5有害于人们的健康和环境."，用be harmful to sb对某人有害，表示，答案是harmful to.
47．答案：
The Internet enables teenagers to collect various informat ion
解析：考查连词成句.句意"因特网使青少年能够收集各种信息.".这是一个陈述句，主语是"The Internet"因特网，表示特
征.enable sb to do sth使某人能够做某事.谓语是enables.sb
用teenagers青少年代替.collect various information收集各种信息.答案是
The Internet enables teenagers to collect various informat ion.
六、短文填词（共38分）
48．答案：EBDA
解析：46.E. 形容词考查.结合前文
Nowadays more and more people prefer to go fishing or h iking in the woods可知这里是褒义的形容词，故用exciting令人兴奋的，故答案是E.
47.B. 名词考查.a是冠词，后加名词单数，结
合turn a pleasant outing into a是将高兴的事情变成灾难，故用名词disaster，故答案是B.
48.D.名词考查.the是冠词，后加名词，跳过空格推知句意是说这种在山区旅行的情况是真的，故用名词situation，故答案是D.
49.A. 形容词考查.结合后
文in high mountains.Sometimes you can experience two or three seasons in one day.越来越多的人喜欢去钓鱼和远足，但是要记得一些基本的规则，准备应对各种天气，带上地图，指南针和手电筒，告诉别人你要去哪什么时候回来.可知天气多变，故用形容词changeable.
故答案是changeable.
49．答案：DECA
解析：
50.D. 动词考查.结合a map，a compass，
and a flashlight in your bag用动词pack打包，故答案是pack.
51.E. 副词考查.结合句子结构这里用副词修饰become，表示可能用probably，故答案是E.
52.C. 副词考查.结合
Small cuts can be more serious when there is no doctor
可知是说没有医生在附近，故用nearby，故答案是C.
53.A.动词考查.结合句意是说如果麻烦出现的时候，用动词appear，故答案是A.
50．答案：
People always think what the other people own are better than theirs.But it isn't true.
解析：根据最后一段句子
They decided that they would never try to be someone el se they were not.It seemed that the grass was not alway s greener on the other side.可知为了告诉我们人们总是认为别人拥有的东西比他们的好，但事实并非如此.故答案为
People always think what the other people own are better than theirs.But it isn't true.
51．答案：Because Karen couldn't remember the basic steps
解析：根据倒数第二段最后一句
Their ballet teacher became impatient with her，"Karen，
you should remember the basic steps.You can't rely on co pying what others are doing."他们的芭蕾舞老师就对她不耐烦，"凯伦，你应该记住的基本步骤.你不能靠模仿别人在做什么."可知因为凯伦不记得基本的步骤.故答案为
Because Karen couldn't remember the basic steps.
52．答案：She felt lost
解析：根据第三段句子When the art lesson started，
Karen was lost.艺术课程开始的时候，凯伦很迷惑.可知凯伦感到迷惑.故答案为She felt lost.
53．答案：Their plan was to pretend to be the other one
解析：根据第二段第三行句子
they asked each other.It seemed like a wonderful plan to them.After giving each other a description of their own friends，
Grace put on Karen's ballet dress while Karen put Grace' s brushes and paints into her bag.Then they left for th eir classes.他们互相问了一句，对他们来说，这是一个很好的计划，在互相介绍他们自己的朋友后，格瑞丝穿上凯伦的芭蕾舞服，凯伦把格雷斯的画笔和颜料放进她的包里，然后他们就去上课了.可知他们的计划是假装另一个.故答案为
Their plan was to pretend to be the other one.
54．答案：They got up at seven on Saturdays
解析：根据第二段第一行句子
they had to get up early at seven every Saturday to pr epare for their lessons.他们每个星期六起床很早，七点准备功课.可知是七点起床.故答案为They got up at seven on Saturdays.
55．答案：No，they didn't.
解析：根据第一段句子
It was Saturday again.Grace and Karen disliked Saturdays.
又是星期六，格瑞丝和凯伦不喜欢星期六，可知他们不喜欢星期六.故答案为No，they didn't.。