Unit4 Don’t eat in class．单元测试A卷（含解析）

【人教新目标（Go for it）版英语七年级（下）单元测试卷】
Unit4 Don’t eat in class．（A卷）
班级：________ 学号：________ 姓名：________ 得分：________
一、单选题（每小题1分，共20分）
( )1．–Emma can go out ________ school nights but she must be back ________ ten o’clock.
--Oh, I see.
A．on, before B．on, after C．in, before D．in, after
( )2．He likes ______ and he often ______ for two hours before he does his homework.
A．read；relaxes B．reading；relaxes C．reads；relaxes D．reading；relax
( )3．— _______ does your father go to work every day?
— He takes a car.
A．When B．Where C．How D．Why
( )4．There are ________rules at my home and ________homework at school. I can't stand (忍受) them.
A．too much；too many B．too many；too much
C．too much；too much D．too many；too many
( )5．— Don’t _______ there. Can’t you see the sign?
— Sign? What sign?
— No _______.
A．swim；to swim B．swim；swim C．swimming；swim D．swim；swimming
( )6．— _______ late for class again,Lucy.
— Sorry, I won’t.
A．Don’t B．Don’t be C．Can’t D．Doesn’t
( )7．There’s not so much time, so she goes to school after a _______ breakfast.
A．quick B．quickly C．fast D．slow
( )8．Don’t let students go out _______ school nights.
A．of B．in C．at D．on
( )9．Kate, _______ your homework here tomorrow.
A．bring B．brings C．to bring D．bringing
( )10．Don’t forget________ me this evening.
A．to call B．call C．calls D．calling
( )11．Don’t arrive late for class, _____?
A．do you B．aren’t you C．will you D．don’t you
( )12．—Must I clean the window now?
—No, you_____.
A．mustn’t B．needn’t C．can’t D．may not
( )13．Don’t _____ the radio. The baby is sleeping.
A．turn off B．turn on C．turn over D．turn down
( )14．The doctor asked him to stay ________ for two or three days.
A．in bed B．on bed C．in the bed D．on the bed
( )15．Don’t worry! There is _________ much wrong with you.
A．something B．anything C．everything D．nothing
( )16．Don’t talk ________ in the library.
A．loud B．loudly C．low D．lowly
( )17．“No______ !” says the sign.
A．smoke B．smoking C．smokes D．to smoke
( )18．“No swimming！” means that ________.
A．we can swim B．it's safe to swim C．better swim D．don't swim
( )19．It's too crowded on the street, so they don't ________ the hotel(旅馆) on time.
A．reach B．arrive C．get D．arrive in
( )20．Please _____ late for class.
A．not be B．aren’t C．don’t D．don’t be
二、完型填空（每小题1分，共10分）
I like fishing. Every Sunday I get up early and go to a river 21 bike. It is three kilometers away from my home. This morning my wife 22 to go with me. We go by car first and then walk to the river. After we get there, we sit down and I start to fish. In two hours, I catch 23 . “All right. Let 24 have a try,” she says. She 25 six big fish in half an hour. “I will go 26 and I’m going to cook them for lunch. You can 27 a bus home,” she says. I stay by the river but catch only 28 old shoe. I 29 a little angry with 30 . Who is the fisherman in the family? My wife or I?
( )21．A．with B．by C．on D．to
( )22．A．wants B．to want C．like D．likes
( )23．A．something B．anything C．nothing D．some
( )24．A．me B．I C．my D．myself
( )25．A．catch B．catches C．to catch D．catching
( )26．A．here B．there C．home D．to
( )27．A．gets B．takes C．get D．take
( )28．A．an B．a C．the D．some
( )29．A．is B．feel C．be D．were
( )30．A．my B．mine C．myself D．me
三、阅读理解（每小题2分，共30分）
（A）
Rule One1．You can come into the room only with your teacher．2．Don’t eat or drink in the room．3．Don’t listen to music．4．Be quiet．Don’t talk to each other．5．Turn off all the computers and close windows after class．
Rule TwoHere are the rules for Emily．1．You must get up before 6:30 a．m．2．Don’t listen to music．3．Don’t talk loudly on the phone．4．Go to bed by 10:00 p．m．5．Don’t meet friends if you don’tfinishyour homework．6．Clean your bedroom yourself．
( )31．In the two rules，________isn’t be allowed（被允许）．
A．eating or drinking B．listening to music
C．meeting friends D．coming into the room
( )32．When does Emily have to go to bed？
A．After 10:00 p．m． B．Before 6:30 p．m． C．By 10:00 p．m． D．By 9:00 p．m．
( )33．Rule One may be for a________．
A．computer room B．classroom C．bedroom D．dining room
( )34．The underlined word“finish”means“________”in Chinese．
A．阅读 B．拿走 C．开始 D．完成
( )35．Which of the following is NOT true？
A．You have to be quiet when you have a computer class．
B．Emily’s parents clean her bedroom．
C．Students can’t go into the room if there is no teacher．
D．Rule Two is a family rule．
（B）
Little Peter is a boy of nine. He began to go to school the year before last and now he's in Grade Three. He lives not far from the school. but he's often late for class. He likes watching TV in the evening and goes to bed late, so he can't get up on time in the morning.
This term Mrs Black, Peter's aunt, works in Peter's school. he teaches Grade Three maths. he's strict with Peter and often tells the boy to obey(遵守) the school rules and come to school on time. Yesterday morning Peter got up late. When he hurried to school, it was a quarter past eight. His aunt was waiting for him at the school gate.
“You're ten minutes late for the first class, Peter.” Mrs Black said angrily. “Why are you often late for class?” Every time, when I get to the street corner, I always see a guidepost. It says, 'SCHOOL-GO SLOW!'”
( )36．Peter is in school for_________ years.
A．one and a half B．two C．more than two D．three
( )37．Peter is often late for school because _______.
A．he likes watching TV B．he goes to bed late
C．he can't sleep well at night D．he can't get up on time in the morning
( )38．Mrs Black is a __________ .
A．worker B．teacher C．guard D．policeman
( )39．The first class begins at____ .
A．ten to eight B．eight C．five past eight D．fifteen past eight
( )40．The guidepost is for ____ ?.
A．drivers B．Peter C．students D．teachers
（C）
Hi, boys and girls! Welcome to our museum. It's free .You don't have to pay(付费)any money. But we have some rules for you. Please remember them and do as I say. Firstly, don't have food or drink here. You may make our museum dirty. Secondly, you can take photos here, but don't touch（触摸）the things here. Thirdly, keep quiet at the museum. Don't talk loudly. Fourthly, the museum is not open after five o'clock in the afternoon. Please leave before five. Have a good time here ! Thank you!
( )41．They are some rules for the .
A．store B．park C．school D．museum
( )42．What's the meaning(意思）of the word“free”in the article（文章）?
A．免费的 B．迅速的 C．高兴的 D．自由的
( )43．Students can at the museum.
A．have food and drink B．take photos C．touch the things D．talk loudly
( )44．Students can stay at the museum
A．all day B．before 5:00 am C．before 5:00 pm D．after5:00 pm
( )45．We can learn from the article that
A．the students don't want to pay any money
B．the museum has five rules for the students
C．the speaker who tells the students the rules is a teacher
D．the speaker hopes that the students can have a good time
四、根据首字母、句意及汉语提示写出所缺的单词（每小题0.5分，共5分）
46．You have to wear the________(校服)in our school.
47．The teacher is very ________（严格的）with his students.
48．It’s very cold_________(外边). Please put on more clothes.
49．Don’t l________to music in class.
50．We must keep __________(安静)in class.
51．It's very _________(重要的) to follow the rules.
52．Don't leave the dirty dishes in the k_________.
53．I can't __________(记起)the boy's name.
54．Our classmates feel sad about the__________(可怕的) news.
55．The students should not be n________ after class.
五、用所给单词的正确形式填空（每小题0.5分，共5分）
56．Mike often _________ (arrive) late for school.
57．There are many _________(rule) in our school.
58．_______(not eat) in class.
59．Please __________(listen) to me carefully.
60．Jane always________(wear) a hat.
61．She has to _________(be) quiet in the library.
62．My sister must wash the _______（dish）after dinner.
63．He _______（feel) sorry because he can’t play computer games.
64．You must________（make）the bed after you get up.
65．She often ________(relax) on weekends.
六、句型转换（每小题2分，共10分）
66．You must look after you sister.(同义句)
You ________ ________ look after your sister.
67．Tom has to wear his uniform to school.（变否定句）
Tom ________ ________ to wear his uniform to school.
68．Uncle Wang does housework on weekend.(改一般疑问句)
_______ Uncle Wang _______ housework on weekend?
69．You can’t turn on the radio. (改为祈使句)
_______ _______ on the radio.
70．We do morning exercises outside every morning.(用let改写)
__________ _________morning exercises outside every morning.
七、补全对话（每小题2分，共10分）
A：Excuse me. 71．______
B：Yes, I want to buy a pet.
A：72．______ A cat or a dog?
B：I don't know. Which one is better?
A：Well, I think both are very cute and smart. If you like them, they will like you, too. 73．______
B：I like reading books, listening to music and watching TV at home.
A：So you don't like to go out?
B：No, I don't. 74．______
A：If so, I think you should choose a cat. If you keep a dog, you have to go out to walk it every day.
B：75．______ I will buy a cat.
八、书面表达（共10分）
76．假如你是王丹，刚刚转学，新学校有很多规则要遵守。请你根据以下表格提示，用英语给你的美国笔友Lisa写一封电子邮件，谈谈你的新学校的校规。
必须
不许
早晨八点前到校
课堂上不能听音乐
课前打扫教室
不能在教室里吃东西
在校穿校服
不能在走廊里跑
要求：(1)根据表格提示进行写作，内容要完整；(2)60词左右。电子邮件的格式、开头和结尾已给出，不计入总词数。
Dear Lisa，
I study in a new school now. ___________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
Do you have any school rules? Please write to me.
Yours，
Wang Dan
参考答案
1．A
【解析】句意：艾玛在上学时晚上可以出去，但是她必须在10点前回来。——哦，我明白了。night前面有形容词或名词修饰，表示具体某一天的晚上，故用介词on修饰。根据连词but表示前后两句之间是转折关系，前半句表示她可以晚上出去，后半句表示回来的时间应有个限制，故是在10点前。故用介词before。故选A。
2．B
【解析】句意：他喜欢阅读，并且经常在做家庭作业前放松两个小时。like doing 喜欢做某事；relax为动词，意为“放松”，变第三人称单数在后面加－es。故选B。
3．C
【解析】句意：——你爸爸每天怎么上班？——他开车上班。A. When什么时候；B. Where在哪里；C. How怎么样；D. Why为什么。根据答语可知，问句是询问交通方式，故答案为C。
4．B
【解析】句意：我家的规矩太多，学校的作业太多。我受不了它们。too many修饰可数名词复数；too much修饰不可数名词。第一空后rules是可数名词复数，故用too many；故排除A和C；第二空后homework是不可数名词，故用too much。故排除D,根据句意可知，故选B。
5．D
【解析】句意：——不要在那里游泳。你看不到那个标志吗？——标志？什么标志？——禁止游泳。助动词Don’t后跟动词原形，排除C；No swimming禁止游泳，用作标志语。类似表达有No parking/No smoking。故答案为D。
6．B
【解析】句意：——别再迟到了，露西。——对不起，我不会迟到了。此句是祈使句的否定句，其构成为Don’t+动词原形+其他。late为形容词，be late for迟到。助动词don’t后面须跟动词原形be，故答案为B。
7．A
【解析】句意：时间不多了，因此她快速地吃完早饭就去上学了。A. quick快的；B. quickly迅速地；C. fast快的；D. slow慢的。名词breakfast的前面需要由形容词来修饰，排除B；时间不多，只能是快速地吃过早饭去上学，排除D；quick多指动作发生或完成得很迅速、敏捷；fast多指运动物体速度"快"，强调物体运动的方式。故A选项符合题意。
8．D
【解析】句意：不要让学生在上学的晚上出去。A. of……的；B. in用在某年，某月或季节的前面；C. at用在时刻的前面；D. on用在某一天的前面或某一天的早晨、下午，晚上。night的前面用修饰词时，前面用介词on，on school nights在上学期间的晚上，故答案为D。
9．A
【解析】句意：凯特，明天把你的作业带来。祈使句以动词原形开头。
10．A
【解析】句意：别忘了今晚给我打电话。
考查动词短语。don’t forget to do sth.：不要忘记做某事，意思是remember to do sth.：记着做某事，这件事还没有做；结合句意可知填to call；故选A。
11．C
【解析】句意：上课不要迟到，好吗？考查祈使句的反义疑问句。在反义疑问句中，如果前面为否定的祈使句，则其附加问句部分要用肯定形式will you；结合句意可知填will you；故选C。
12．B
【解析】句意：---我现在必须擦窗户吗？---不，你不需要。
考查情态动词。A. mustn’t禁止；B. needn’t不需要，不必要；C. can’t不能，不可以，不会；D. may not不可以，禁止。must必须，它开头的一般疑问句的肯定回答是Yes,….must.否定回答是No,…needn’t；结合句意可知填needn’t；选B。
13．B
【解析】句意：不要打开收音机。婴儿在睡觉。A. turn off“关上”； B. turn on“打开”；C. turn over “移交”；D. turn down“关小”。本句子是考查祈使；句的否定句的用法。从后面句子的意思“孩子在睡觉”可以理解前面的句子是用祈使句的否定句表示“不要打开收音机”的意思。故选B。
14．A
【解析】句意：医生让他卧床两三天。
考查介词短语。1.in bed：表示“躺在床上、卧病在床，在床上”，短语中的bed不指具体的床，故前在不用冠词，in也不能改成on。例如，Reading in bed is bad for your eyes. 躺在床上看书对你的眼睛有害。2.in the bed：表示在床里面，即在被窝里。例如，I was so tired and wanted to sleep in the bed right now.我太累了,真想马上躺在被窝里睡觉。3.on the/one’s bed表示“在某张/某人的床上”。例如，She saw a new red box on her bed. 在她的床上，她看见一个新的红盒子。结合句意可知填in bed；选A。
15．D
【解析】句意：别担心！你没有什么毛病。
考查不定代词。A. something某事物，一般用于肯定句；B. anything任何东西，一般用于否定句或疑问句；C. everything一切，所有事物；D. nothing无物，没有东西。根据上文“别担心！”可知“你没有什么毛病。”结合句意可知填nothing；选D。
16．B
【解析】句意：不要在图书馆大声说话。
考查形容词副词辨析。A. loud大声的，形容词；B. loudly大声地，副词；C. low低的，矮的，低声地，形容词副词；D. lowly地位低的；不重要的，形容词。talk low：低语，小声点说；talk loudly：大声说话。我们都知道“在图书馆不要大声说话”；结合句意可知填loudly；选B。
17．B
【解析】句意：“禁止吸烟！“牌子上写着。
考查动词形式。表示禁止时的祈使句，尤其是标语等用"No+名词/动名词"来表示。No smoking！禁止吸烟! No parking！禁止停车! No entry！不准入内！故选B。
18．D
【解析】“No swimming!”的意思是“禁止游泳！”A. we can swim我们会游泳；B. it's safe to swim游泳是安全的；C. better swim最好游泳；D. don't swim不要游泳。故答案为D。
19．A
【解析】句意：街上太拥挤了，他们不能按时到达旅馆。get to, reach, arrive in/at都可以表示“到达”， arrive是不及物动词，后面不能直接跟地点名词，排除B；get只有用to连用才有“到达”之意，排除C；arrive in后跟大地方，arrive at后跟小地方。hotel是小地方，前面应该用arrive at，排除D。故答案选A。
20．D
【解析】句意“上学请不要迟到”。本题考察祈使句，祈使句要以动词原形开头，排除B；be late for迟到，且祈使句的否定形式直接在前加don’t，故选D。
21．B 22．A 23．C 24．A 25．B
26．C 27．D 28．A 29．B 30．C
【解析】短文大意：作者喜欢钓鱼，每个星期天都骑自行车去河边钓鱼。一天早上作者的妻子和他一起去河边钓鱼。作者在两小时里没有钓到鱼，他的妻子想试一下，结果在半个小时里钓到了六条鱼。最后作者只钓到了一只旧鞋。
21．句意：每个星期天我都早起，骑自行车去河边。A. with与……一起；B. by通过，乘；C. on在……上；D. to到。by bike骑自行车。故答案为B。
22．句意：今天早上我妻子想和我一起去。A. wants想要，动词三单式；B. to want想要，动词不定式；C. like喜欢，动词原形；D. likes喜欢，动词三单式。通篇用一般现在时态，并结合句意，my wife是第三人称单数，此处用动词的单数形式，want to do sth.意为“想要做某事”。故答案为A。
23．句意：在两个小时的时间里，我什么也没抓到。A. something某物；B. anything任何东西；C. nothing没有东西；D. some一些。从全文看，他什么都没钓着，所以妻子才会问：为什么不让我试试？答案为C。
24．句意：让我来试一试。A. me我，代词宾格；B. I我，代词主格；C. my我的；D. myself我自己。Let后跟代词宾格形式，答案为A。
25．句意：她半小时内钓到六条大鱼。A. catch动词原形；B. catches动词三单式；C. to catch动词不定式；D. catching分词。主语She是第三人称单数，所以此处谓语动词应用单数形式。答案为B。
26．句意：我要回家，用它们做午饭。A. here 这儿；B. there那儿；C. home家；D. to到。go home回家，此处指作者的妻子拿着钓到的鱼回家做午饭，答案为C。
27．句意：你可以乘公共汽车回家。A. gets得到；B. takes乘坐；C. get得到；D. take乘坐。“乘公共汽车”用动词take，用在情态动词can后，所以用动词原形。答案为D。
28．句意：我待在河边，只钓到一只旧鞋。不定冠词a/an表示泛指，定冠词the表示特指，some一些，修饰可数名词时，名词要用复数形式，此处一只旧鞋表示泛指，old发音是以元音音素开头，前面用不定冠词an，故答案为A。
29．句意：我有点生自己的气。做此题可用排除法。通篇都用一般现在时，排除were，主语是I，系动词be不能用原形，也不能用is，应用am。feel意为“感觉，觉得”符合文意，为正确答案。答案为B。
30．句意：我有点生自己的气。A. my我的；B. mine我的；C. myself我自己；D. me我。“跟自己生气”，用feel/be angry with oneself，句中主语为I，所以with后应接I的反身代词myself。答案为C。
31．B 32．C 33．A 34．D 35．B
【解析】
31．两个规则中都有Don’t listen to music．
32．在Rule Two里由Go to bed by 10:00 p．m．可知埃米丽要在10点之前睡觉。
33．由规则Turn off all the computers and close windows after class．可判断是“电脑室”。
34．由后面的homework可判断是“完成作业”。
35．由规则Clean your bedroom yourself可判断，在埃米丽家，不是她的父母打扫她的房间，而是自已打扫。
36．C 37．D 38．B 39．C 40．A
【解析】本文叙述了小学生Peter上学迟到的故事。
36．细节理解题。根据He began to go to school the year before last and now he's in Grade Three可知，Peter上学两年多了。故选C。
37．细节理解题。根据He likes watching TV in the evening and goes to bed late, so he can't get up on time in the morning可知，故选D。
38．细节理解题。根据This term Mrs Black, Peter's aunt, works in Peter's school. he teaches Grade Three maths可知，Mrs. Black是一位老师。故选B。
39．细节理解题。根据When he hurried to school, it was a quarter past eight.和“You're ten minutes late for the first class, Peter.”可知，第一节课开始时间是8:05。故选C。
40．生活常识题。我们知道guidepost是提示司机的。故选A。
41．D 42．A 43．B 44．C 45．D
【解析】这篇文章介绍了参观博物馆的几条规则。
41．句意：这是博物馆的一些规则。A.商店；B.公园；C.学校；D.博物馆。原文“Welcome to our museum. …..But we have some rules for you. Please remember them and do as I say.”（欢迎来到我们的博物馆…但是我们有一些规则给你们。 请记住它们并像我说的那样做。）说明这篇文章是在讲博物馆的规则，故选D。
42．句意：文章中的“free”一词的中文含义是什么？A.免费的；B.迅速的；C.高兴的；D.自由的。后面一句“You don't have to pay any money.”（你不需要支付任何钱）说明free在这里是“免费的”的意思，故选A。
43．句意：学生可以在博物馆拍照。A.吃食物和喝饮料；B.拍照；C.触摸事物；D.大声说话。原文“you can take photos here”（你可以拍照片）说明学生是可以拍照片的，其他的事项是不能做的，故选B。
44．句意：学生可以在下午5:00之前留在博物馆里。A.整天；B.在早上5:00之前；C.在下午5:00之前； D. 在下午5点之后。原文“the museum is not open after five o'clock in the afternoon”（博物馆在下午五点以后不再开放）说明学生可以在下午五点前留在博物馆里，故选C。
45．句意：我们可以从文章中知道说话者希望学生们玩得开心。A.学生不想支付任何费用；B.它对学生有五条规则；C.告诉学生规则的说话人是教师；D.说话者希望学生们玩得开心。原文“Have a good time here!”（在这玩的开心）说明说话人是想学生玩的开心，一共只提到了四条规则，B错误，其它选项无依据，故选D。
46．uniform(s)
47．strict
48．outside
49．listen
50．quiet
51．important
52．kitchen
53．remember
54．terrible
55．noisy
【解析】
46．句意：你必须在我们学校穿校服。
定冠词the后面可跟可数名词单数或复数，结合句意和汉语提示可知答案是uniform(s)。
47．句意：老师对学生要求很严格。
短语be strict with sb.：对某人严格要求；副词very后面跟形容词副词原级；结合句意和汉语提示可知答案是strict。
48．句意：外面很冷。请多穿点衣服。
本句地点副词作状语；outside：在外面，外部的，形容词和副词；结合句意和汉语提示可知填outside。
49．句意：我在课堂上不要听音乐。
本句是否定祈使句，其构成Don’t do sth.；短语listen to ：听….；结合句意和首字母提示可知填listen。
50．句意：我们上课时必须保持安静。
短语keep quiet：保持安静，keep+形容词：保持某种状态，例如，keep calm：保持冷静。结合句意和汉语提示可知填quiet。
51．句意：遵守规则很重要。
副词very后面跟形容词副词原级；结合句意和汉语提示可知答案是important。
52．句意：不要把脏盘子留在厨房里。
kitchen：厨房；结合句意和首字母提示可知填kitchen。
53．句意：我记不起那个男孩的名字了。
情态动词后面跟动词原形；可知can’t后面动词原形。结合句意和汉语提示可知答案是remember 。
54．句意：我们的同学对这个可怕的消息感到难过。
terrible：可怕的；结合句意和汉语提示可知答案是terrible。
55．句意：学生下课后不应吵闹。
be动词后面跟形容词做表语，可知填形容词。noisy：嘈杂的;喧闹的，吵闹的；结合句意和首字母提示可知填noisy。
56．arrives
57．rules
58．Don't eat
59．listen
60．wears
61．be
62．dishes
63．feels
64．make
65．relaxes
【解析】
56．句意：迈克上学经常迟到。根据频度副词often可知此句时态是一般现在时，由主语Mike第三人称单数，可知谓语动词使用单数形式；结合句意和所给词可知填arrives。
57．句意：我们学校有很多规定。many：许多，后面跟可数名词复数；结合句意和所给词可知填rules。
58．句意：不要在课堂上吃东西。否定祈使句构成：don’t do sth.；结合句意和所给词可知填Don't eat 。
59．句意：请仔细听我说。肯定祈使句构成：（Please）do sth.；结合句意和所给词可知填listen。
60．句意：简总是戴帽子。根据频度副词always可知此句时态是一般现在时，由主语Jane第三人称单数，可知谓语动词使用单数形式；结合句意和所给词可知填wears 。
61．句意：她必须在图书馆保持安静。情态动词has to（必须）后面跟动词原形；结合句意和所给词可知填be。
62．句意：我妹妹晚饭后必须洗盘子。根据句意可知使用复数形式，dish：盘子，餐具；复数是dishes；结合句意和所给词可知填dishes。
63．句意：他觉得很抱歉，因为他不会玩电脑游戏。根据从句because he can’t play computer games是一般现在时，可知主句是一般现在时。本句主语he第三人称单数，可知谓语动词使用单数，feel感觉，感到，三单形式是feels；结合句意和所给词可知填feels。
64．句意：你起床后必须整理床铺。情态动词后面跟动词原形，一起做谓语，根据情态动词must可知填动词原形；结合句意和所给词可知填make 。
65．句意：她经常在周末休息。根据据频度副词often可知此句时态是一般现在时，由主语She第三人称单数，可知谓语动词使用单数形式；结合句意和所给词可知填relaxes。
66．have to
67．doesn't have
68．Does do
69．Don't turn
70．Let's do
【解析】
66．句意：你必须照顾你妹妹。题意：同义句。must：必须，同义词have/has to；本句主语you第二人称可知用have；结合句意、题意和提示可知答案是(1). have (2). to 。
67．句意：汤姆必须穿校服上学。题意：变否定句。本句是实义动词的一般现在时的肯定陈述句，主语是第三人称单数，改为否定句，要借助助动词doesn’t，同时把动词的三单形式改为动词原形；结合句意、题意和提示可知答案是(1). doesn't (2). have 。
68．句意：王叔叔周末做家务。题意：改一般疑问句。本句是实意动词的一般现在时的肯定陈述句，主语是第三人称单数，改为一般疑问句，要借助助动词does，同时把动词的三单形式改为动词原形；结合句意、题意和提示可知答案是(1). Does (2). do 。
69．句意：你不能打开收音机。题意：改为祈使句。上文是否定句，改为祈使句可知此句是否定祈使句。否定祈使句构成：don’t do sth.；结合句意、题意和提示可知答案是(1). Don't (2). turn 。
70．句意：我们每天早上在外面做早操。题意：用let改写。句型let’s do sth.：让某人做某事；结合句意、题意和提示可知答案是(1). Let's (2). do 。
71．E 72．F 73．A 74．C 75．D
【解析】本对话是关于在宠物商店购买宠物的内容。B想买一个宠物，不知道购买哪种宠物好，A给出了建议，最后B决定买一只猫。
71．句意：我能帮你吗？考查情景交际。到商店买东西，服务员经常会说“Can I help you?或What can I do for you?”；根据下文Yes, I want to buy a pet.（是的，我想买一只宠物。）可知结合句意（选项）问句是“我能帮你吗？Can I help you?”；选E。
72．句意：你喜欢什么动物？考查情景交际。根据下文A cat or a dog? B：I don't know. Which one is better? （猫还是狗？B：我不知道。哪一个更好？）结合句意（选项）可知是“你喜欢什么动物？”；选F。
73．句意：你有空的时候喜欢做什么？考查情景交际。根据下文I like reading books, listening to music and watching TV at home.（我喜欢看书，听音乐，在家看电视。）可知结合选项可知是“你有空的时候喜欢做什么？”；选A。
74．句意：我经常呆在家里。考查情景交际。根据上文So you don't like to go out? B：No, I don't.（那么你不想出去吗？B：不，我不想。）结合句意（选项）可知“我经常呆在家里。”选C。
75．句意：谢谢。考查情景交际。对于别人给出的建议或帮助要表示感谢；根据上文If so, I think you should choose a cat. If you keep a dog, you have to go out to walk it every day.（如果是这样，我想你应该选一只猫。如果你养了一条狗，你必须每天出去散步。）可知说“谢谢”；结合句意（选项）可知选D 。
76．Dear_Lisa，
I study in a new school now.There are lots of rules in my new school. We must get to school before 8 o'clock in the morning. We have to clean the classroom before class. We also have to wear the school uniforms at school. We can't listen to music in class. We can't eat in the classroom or run in the hallways, either.
Do you have any school rules? Please write to me.
Yours，
Wang Dan