初二年级英语英语情态动词知识点附答案解析

初二年级英语英语情态动词知识点附答案解析

一、初中英语情态动词

1．——Do you have any plans for this summer vacation? ——I'm not sure. I ___ take a trip to Taiwan.

A. must

B. need

C. may

D. should

【答案】C

【解析】【分析】句意:一今天暑假你有什么计划吗?一我还不确定。我可能去台湾去旅行。A.必须，一定;B.需要，必要;C.可能;D.应该。根据句中I'm not sure可知，说话人还没有确定的计划，所以这只是一个可能，应选C。

2．—Where is Monica? I can't find her anywhere.

—She be in the library. She loves reading books when she is free.

A. must

B. need

C. can't

【答案】 A

【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。——她肯定在图书馆，她喜欢空闲时看书。A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。

【点评】考查情态动词，注意情态动词表推测的用法。

3．Please don't make so much noise. I ________ hear the speaker very well.

A. needn't

B. can't

C. shouldn't

D. mustn't

【答案】 B

【解析】【分析】句意：请不要发出那么多噪音。我不能很好地听清楚发言者的话。needn't不必；can't不能；shouldn't不应该；mustn't禁止。根据前半句的Please don't make so much noise.可知别人发出了太多噪音，所以他无法听见演讲者的话，故用情态动词can't。故选B。

【点评】考查情态动词，结合句意和词义做出判断。

4．—Life is becoming convenient with the Internet.

—That's true! Almost everything ______ be done online.

A. must

B. could

C. should

D. can't

【答案】 B

【解析】【分析】句意：——生活正随着网络变得方便。——那是真的。几乎所有的事情可以在网上完成。A必须，B可以，C将，D不能。根据 Life is becoming convenient with the Internet. 生活正随着网络变得方便，可知应该是很多事情可以在网上完成，故选B。

【点评】考查情态动词。注意理解和掌握情态动词的不同用法。

5．Look at the sign! It says “No Smoking!” You ________ smoke here. It's dangerous.

A. mustn't

B. ought not to

C. needn't

D. don't have to

【答案】 A

【解析】【分析】句意：看这个标志！上面写道“禁止吸烟！“你不能抽烟。这是危险的。

A.mustn't 禁止，不允许；

B.ought not to不应该，不应当；

C.needn't不必；

D.don't have to 不必。根据“No Smoking!”可知此处禁止吸烟，故答案为A。

【点评】考查情态动词。掌握情态动词的意义和用法。

6．—Shall we meet at the station at 9 a.m.?

—In fact we ______. The train ______until 11a.m.

A. needn't; will leave

B. needn't; won't leave

C. mustn't; leaves

D. mustn't; doesn't leave

【答案】 B

【解析】【分析】句意：—我们上午9点在车站见面好吗？—事实上我们不需要。火车直到11点才离开。needn't情态动词，不需要，没必要；mustn't情态动词，不允许，语气强烈，本题含义只是“不需要”,并没有“禁止、不许”这样强烈的语义。not...until...，意为“直到...才...”，表示将来发生的事情，所以使用一般将来时态的否定形式won't。故选：B。

【点评】考查情态动词辨析，固定搭配not...until...。一般将来时态。

7．You be tired after walking for such a long time. Sit down and have a rest.

A. can

B. can't

C. mustn't

D. must

【答案】 D

【解析】【分析】句意：走了这么长时间你一定很累了。坐下休息一下吧。can能，能够，can't不能，对事物进行否定推测；mustn't一定不是，禁止，must一定，对事物进行肯定推测，根据after walking for such a long time，可以肯定你一定很累，所以是进行肯定推测，情态动词使用must，故选D。

【点评】此题考查情态动词。弄清每个情态动词的使用规则，根据句意确定所使用的情态动词。

8．— Is this e-dictionary Jack's?

— No, it_______ his. His is much newer.

A. can't be

B. mustn't be

C. may be

D. should be

【答案】 A

【解析】【分析】句意：-这个电子字典是杰克的吗？--不可能是他的，他的更新些。must,can（could）,may（maight）可以表示猜测，must表示肯定猜测，用于肯定句，肯定……，一定……；can’t,表示否定猜测，肯定不……，另外can（could）,may（maight），表示可能性猜测，可能……。根据后文的依据，可知是否定猜测，故选A

9．—I wonder if this smart phone is Mary's.—It _______ belong to her. _______ is totally different from this one.

A. mustn't; Her

B. can't; Her

C. can't; Hers

D. may; Hers 【答案】C

【解析】【分析】句意：――我想知道这个智能机是否是玛丽的。――不可能属于她，她的和这个完全不同。情态动词表示推测时，用must表示“一定”，用might, could表示“可能”，用can't表示“不可能”。从句意看，这手机与她的完全不同，故不可能是她的，前面用can't。形容词性的物主代词后一定有一个被修饰的名词，名词性的物主代词后没有被其修饰的词，本题后没有被修饰的词，用名词性的物主代词，“她的”：hers。故选C。

10．I can't go with you. I _______ stay at home until my parents come back.

A. can

B. may

C. must

D. could

【答案】 C

【解析】【分析】句意：我不能和你一起去。我必须呆在家直到我父母回来。A. can能，表示能力；B. may可以，表示许可；C. must必须，强调主观愿望；D. could可以，表示允许、请求。父母没回来前，我必须待在家。故选C。

【点评】此题考查情态动词的用法。

11．—He be in the classroom,I think.

—No, he be in the classroom. I saw him go home a minute ago.

A. can； may not

B. must； may not

C. may； mustn't

D. may； can't 【答案】 D

【解析】【分析】句意:——我认为他可能在教室里。——不，他肯定没有在教室里，我刚才看到他回家了。must,can（could）,may（might）可以表示猜测，must表示肯定猜测，用于肯定句，肯定……一定……；can't表示否定猜测，肯定不……，另外can（could）,may （might）,表示可能性猜测，可能……根据I think,可知把握较小，根据I saw him go home a minute ago.可知第二句把握大，故选D。

12．According to the law, traffic keep to the left in England.

A. may

B. must

C. need

D. can

【答案】 B

【解析】【分析】句意：根据法律规定，在英国车辆必须靠左形式。A.may可以，表示允许；B.must必须，表示要求；C.need需要，表示必要性；D.can能，表示能力。根据According to the law,可知法律的要求，应是必须的，应用must，故答案为B。

【点评】考查情态动词。掌握情态动词的常用法。

13．—Mum, I play football this afternoon?

—Sure, but you finish your homework first.

A. may; could

B. can; must

C. can; mustn't

D. may; can't

【答案】 B

【解析】【分析】句意：－妈妈，今天下午我能踢足球吗？－当然，但是你必须先完成作

业。前句提请求，can,may都可以；后句，由sure可知后句用肯定回答。Could表示一种委

婉的语气；must表示主观愿望：必须。妈妈要求孩子“必须”先完成作业。故选B。

【点评】考查情态动词辨析，may表示请求时候的回答用语。

14．— Sorry, I forgot to take money with me. Maybe I can't buy the book you like.

— Mum, you ______ worry about it. We can pay by Alipay （支付宝）.

A. can't

B. needn't

C. mustn't

D. shouldn't

【答案】 B

【解析】【分析】句意：——对不起，我忘记带钱了。也许我不能买你喜欢的书。——妈

妈，你不用担心。我们可以用支付宝支付。A. can't不能，指不允许或否定推测；B. needn't

不需，指没必要；C. mustn't不能，表禁止；D. shouldn't不应该，表建议。根据句意语境，

本句是说妈妈不需要担心，故答案为B。

【点评】考查情态动词。理解句意并掌握情态动词的意义和用法区别。

15．—Look! The woman at the school gate ______be her headmaster.

—No, it ______ be her. She is holding a meeting in the office now.

A. must; can't

B. must; mustn't

C. can; needn't

D. may; mustn't

【答案】 A

【解析】【分析】句意：——看！学校门口的那个妇女一定是她的校长。——不，不可能

是她。第一空，must表示“一定”；空二，根据She is holding a meeting in the office now. 她

现在正在办公室开会，可知，不可能是校长，用can't，表示不可能。故选A。

【点评】考查情态动词辨析。注意不同情态动词的用法，注意理解句意。

16．——You look pretty in green, Kate. ——Thank you. I like green. Green ______give me energy.

A. can

B. must

C. should

D. has to

【答案】A

【解析】【分析】句意:一一凯特，你穿看绿色的衣服很漂亮。一一谢谢，我喜欢绿色。绿

色给我能量。A.能，表示能力;B.must必须，强调主观愿望;C.应该，强调责任与义务;D.必须.

强调客观要求。绿色能给我力量，我喜欢。故选A。

17．— _______ you play tennis?

—Yes, and I'm a good player.

A. Can

B. May

C. Must

D. Should

【答案】 A

【解析】【分析】句意：——你会打网球吗？——会，我是一名优秀的网球员。Can能，表

示能力；may可以，表示允许；must必须，表示要求；should应该，表示建议；结合句意，此处表示能力，故用情态动词can，故选A。

【点评】此题考查情态动词的用法。

18．You __________ write the poem down. Our teacher will give us a copy soon.

A. needn't

B. mustn't

C. shouldn't

D. can't

【答案】A

【解析】【分析】句意:你不需要把诗抄下来，老师很快会给我们一份。A.不必;B.不准，禁止，不允许;C.不应该，表示责任、义务;D.不能，表示能力，不可能，表示否定的推测。老师要给我们一份，所以不必抄写。故选A。

19．—I think we need to sit down and have a talk. —I agree more. Let's take the bench over there.

A. could

B. couldn't

C. should

D. shouldn't

【答案】B

【解析】【分析】试题分析:句意:一一我认为我们需要坐下来谈一谈。一一我完全同意。我们到那边凳子上坐。I could agree more我可以同意更多的，I couldn't agree 我不同意I couldn’t agree more.我完全同意I should agree more.应该同意更多，I shouldn't agree more我不应该同意更多.后句Let's take the bench over there.我们在那边的凳子上坐吧）可以推测出，我同意。故选B。

20．Size and type do not matter — you ______ do almost anything if you never give up. A. should B. must C. need D. can

【答案】 D

【解析】【分析】句意：大小和类型不重要——如果你不放弃，你几乎可以做任何事。A. should应该；B. must 必须； C. need 需要；D. can可以，能；根据 if you never give up，可知此处说你能做几乎任何事情，故选D。

【点评】此题考查情态动词辨析。根据上下文的联系确定所使用的情态动词。

21．Children sit in the front seat of the car. It's too dangerous.

A. need

B. needn't

C. must

D. mustn't

【答案】 D

【解析】【分析】句意：孩子们不得坐小车的前排。太危险了。A.需要，必须;B.不必,不需要;C.必须;D.不准，不得，禁止。根据句意，因为太危险了，所以孩子们不准坐前排的位置。故选D。

22．As middle school students, we follow the public rules wherever we go.

A. would

B. should

C. might

D. could

【答案】 B

【解析】【分析】句意：作为中学生，无论走到哪里我们应该遵守公共规章制度。would

将会，指将会发生的事情；should，应该，主要用于告诉某人应该做什么、给予忠告或加

强语气。might，可能，事情发生的可能性；could，能，表示委婉语气；此处表示应该做

的事情，故选B。

【点评】此题考查情态动词辨析。根据上下文的联系确定所使用的情态动词。

23．—How amazing this robot is!

—Wow, it has video cameras in its eyes, so it “see” and interact with people.

A. may

B. can

C. must

D. should

【答案】 B

【解析】【分析】句意：—这个机器人多么惊人啊！—哇，在它的眼睛里有摄像机，因此

它能看见和人打交道。A. may 可以，可能；表示许可，B. can 能；表示能力，C. must 必

须；D. should应该；根据it has video cameras in its eyes,可知是有能力看见，故选B。

【点评】考查情态动词辨析。熟记情态动词的含义和用法。

24．All passengers ______ go through safety check before they take a plane.

A. can

B. may

C. must

D. could

【答案】 C

【解析】【分析】句意：所有乘客登机前必须接受安全检查。A. can能够，表示能力；B. may可以，表示许可；C. must必须；D. could可能，可以。登机前必须安检。故选C。

【点评】情态动词词义辨析。以及can、may、must、could四个词的词义和用法。

25．Rock music ______ sound popular with the young, but it's not the favor of the aged people.

A. must

B. need

C. should

D. may

【答案】 D

【解析】【分析】句意：摇滚音乐在年轻人中听起来受欢迎，但是它不受上了年龄的人的

赞同。must, 表示猜测时，指把握比较大的肯定猜测，肯定……；need需要；should,应该；may，表示把握比较小的肯定猜测，可能，也许。结合句意，故选D。

【点评】考查情态动词辨析，注意几个常见情态动词的意思和用法。

26．—It's wonderful that our chairperson has been invited to the English party!

—I'm afraid he ______ come. He has been busy with his study these days.

A. needn't

B. mustn't

C. can't

D. couldn't

【答案】 C

【解析】【分析】句意：——很高兴我们的主席被邀请参加英语晚会！——恐怕他来不

了。这些天他一直忙于学习。A 不必；B 一定不，C 不可能；D 不可能。由题干中的语句He has been busy with his study these days.提示可知，他不可能来，表示否定性的推测，要用

can't，故选C。

【点评】考查情态动词的基本用法。注意情态动词表示推测时的具体规则。

27．— Must I study here with you, Mum?

—No, you ______.You may go home now, but you ______go to the net-bar.

A. must, need

B. need, must

C. needn't, mustn't

D. mustn't, needn't

【答案】 C

【解析】【分析】句意：——妈妈，我必须和你一起在这里学习吗？——不，你不需要了。你现在可以回家，但是你不可以去网吧。第一空，以must提问的一般疑问句，否定回答用needn't或don't/doesn't have to（不必）。根据No可知，用needn't，不需要；第二空，根据but可知，不允许去网吧，用mustn't。故选C。

【点评】考查情态动词辨析。注意must的一般疑问句的用法。

28．——Mum, the train is leaving in eight minutes. I go now.——Okay, Jim, call me when you get there.

A. may

B. must

C. can

【答案】B

【解析】【分析】句意:一妈妈，火车八分钟后出发，我现在必须走了。一好的，吉姆，到了给我电话。A.may可以，表示允许或请求许可;B. must必须，强调主观愿望;一定，表示肯定的推测。C. can能，表示主语所具备的能力。火车要出发了，我必须走了。表示必须:must，故选B。

29．— Where did you put your schoolbag?

— I can't remember. I attended a concert yesterday so it still be in the music hall.

A. can't

B. need

C. might

D. must

【答案】 C

【解析】【分析】句意：一一你把你的书包放在哪儿了?一一我记不得了，我昨天出席了一个音乐会，因此它可能还在音乐厅里。A.can't 不能，表示能力;不可能，表示否定的推测;B.need 需要，必须;C. might可能，表示推测，可以，表示许可;D.must必须;一定，表示肯定的推测。我记不得了，因此在音乐厅只是一个可能情况，故选C。

30．Cars, buses, bikes and people stop when the traffic lights are red.

A. can

B. may

C. must

【答案】 C

【解析】【分析】句意:当交通灯是红色时，汽车、公交车、自行车和人们必须停下来。A．can能，表示能力，B．may 可以，表示允许，C．must必须，表示要求，根据when the traffic lights are red.可知交通灯是红色时，必须停下来，这是交通规则要求的。故选C。

31．—Is that red schoolbag Mary's？

— It ____be hers. She hates that color.

A. may

B. must

C. can't

D. might

【答案】 C

【解析】【分析】句意：——那个红色的书包是Mary的吗？——不可能是她的。她讨厌那个颜色。A.可能；B.一定；C.不可能；D.可能。根据She hates that color她讨厌那种颜色，可知不可能是她的书包，用can't be表示否定的猜测，故答案选C。

【点评】考查情态动词，首先记住情态动词的词义，然后理解句意，选择正确答案。

32．— you like to drink some tea?

— Yes, please. Thanks very much.

A. Would

B. Can

C. Might

D. Must

【答案】 A

【解析】【分析】句意：——你想喝点茶吗？——是的。非常感谢。A 将要；B 能够，C 可以；D 必须。固定句型结构would like to do sth.，想要做某事，故选A。

【点评】考查情态动词的辨析。熟记常用的句型结构。

33．I'm sorry I go now. My piano lesson will start in ten minutes.

A. must

B. might

C. can

D. could

【答案】 A

【解析】【分析】句意：对不起，我得走了。我的钢琴课十分钟后开始。A 必须，表示责任；B 可以，表示建议；C 能够，表示能力或许可；D 能够，表示许可。根据题干中的My piano lesson will start in ten minutes.提示可知，此句表示必须走了，故选A。

【点评】考查情态动词的辨析。弄清每个情态动词的基本含义及用法，根据上下文语境确定正确的答案。

34．—Must I send the email now?

—No, you . You can do it tomorrow.

A. can't

B. mustn't

C. needn't

D. shouldn't

【答案】 C

【解析】【分析】句意：——我现在必须发送电子邮件吗？——不，你没必要。你明天可以做。A： can't 不能；B： mustn't 不可以，禁止；C： needn't 没必要；D： shouldn't不应该。根据下文You can do it tomorrow.可知没必要，故选C。

【点评】考查情态动词辨析。理解情态动词意思和用法，根据语境，选择正确的情态动词。

35．—Excuse me, is this the right way to Children's Park?

— Sorry, I'm not sure. But it __________ be.

A. might

B. must

C. need

D. can

【答案】 A

【解析】【分析】句意：——请问，这是去儿童公园的路吗？——对不起，我不确定。但它可能是。A可能，表示不肯定的推测；B必须，表示肯定的推测，语气强烈；C需要，D 能，表示能力；根据I'm not sure ，可知是不确定的的语气，即不肯定的推测，因此用might，故选A。

【点评】考查情态动词，注意情态动词表推测的用法。

36．School students ______________ smoke because it is against the school rules.

A. needn't

B. couldn't

C. won't

D. mustn't

【答案】 D

【解析】【分析】句意：学校的学生一定不要吸烟因为这是违反学校的规定的。needn't不必；couldn't不能；won't将不会；mustn't禁止，一定不要，根据because it is against the school rules.可知是禁止，一定不能，故选D。

【点评】此题考查情态动词辨析。根据上下文的联系和句子的语气确定所需要的情态动词。

37．— __________I wear a tie to Janet's birthday party?

— No,you needn't. But do remember to bring her a present.

A. Must

B. Should

C. Need

D. Can

【答案】 A

【解析】【分析】句意：——我必须戴领带去参加Jane的生日聚会吗？——不，你不必，但是记住给她带个礼物。对于must的否定回答是用needn't。而should应该；need需要；can可以。所以根据回答可知选A。

【点评】考查情态动词的基本用法。

38．—Look! The man welcoming us at the school gate be our headmaster.

—No, it be him. He is having a meeting in the office now.

A. must; can't

B. must; mustn't

C. can't; mustn't

D. mustn't; can 【答案】 A

【解析】【分析】句意：——看，在学校门口欢迎我们的一定是我们的班主任。——不，不可能是他。现在他正在办公室开会。must一定，表示肯定推测；can't不可能，表示否定推测；mustn't禁止，不表示推测；can可能。根据He is having a meeting in the office now.可知班主任正在开会，所以不可能是班主任，所以第二个空用can't，根据no可知第一个人认为正在欢迎我们的一定是班主任，所以用must，故选A。

【点评】考查情态动词，注意平时识记，理解句意。

39．David, you please sweep the floor and take out the trash?

A. could

B. may

C. might

D. must

【答案】 A

【解析】【分析】句意：——大卫，你能打扫一下地板把垃圾拿出去吗？could能，能够；may可以；might有可能；must必须。Could/Would you please do sth?你做某事好吗，固定句式，表示语气的婉转，故选A。

【点评】此题考查情态动词。注意固定句式Could/Would you please do sth?

40．Driving in rush hour ______ be very dangerous, so you ______ be too careful.

A. should; should

B. could; should

C. might; mustn't

D. can; can't

【答案】 D

【解析】【分析】句意：在高峰期开车可能很危险，因此你无论怎样小心也不算过分。should应该；can可能，表示推测；could可能，可以，表示推测；might可能，可能性不如can强；must一定，must't禁止，不准。根据常识可知，高峰期开车可能会很危险，故排除A；can't … too，再……也不为过，固定搭配，故选D。

【点评】考查情态动词的辨析。注意句子涉及固定搭配can't…too。

41．Mr. Zhang has gone to Mexico, so the man __________ be him.

A. must

B. might

C. can't

【答案】 C

【解析】【分析】句意：张先生去了墨西哥，所以那个男人不可能是他。A：must 一定，表示推测；B： might 可能；C： can't不可能，推测的否定。根据上文 Mr. Zhang has gone to Mexico 可知那个男人不可能是他。表示否定的推测，要用can't，故选C。

【点评】考查情态动词的辨析。根据语境选择正确的情态动词。

42．—Look, Jim is talking to his friend under the tree.

—It _______ be him. He has _______ back to Canada.

A. can’t; gone

B. can’t; been

C. may not; been

D. mustn’t; gone

【答案】 A

【解析】【分析】考查情态动词表推测及现在完成时的用法。一方面，表示推测语气时，can’t意为“不可能”；may not意为“可能不是”；must不用于否定句；另一方面，“have/has gone to+地点”意为“去了某地”，表示不在说话人这儿；“have/has been to +地点”表示“去过某地”。句意为“——看，吉姆和他朋友在树下谈话。——不可能是他。他已经回加拿大了。”故选A。

43．If you _______ the book, you _______ buy it right now, I think.

A. needn't; needn't

B. don't need; don't need

C. don't need; needn't

D. don't need; needn't to

【答案】 C

【解析】【分析】句意：如果你不需要这本书，我觉得现在你就没有必要买它。needn't是情态动词need的否定形式，后面跟动词原形；don't need是实意动词need的否定形式，后面跟to do sth.或者名词做宾语，根据句意可知应选C。

44．—Sir, you ________ use your mobile phone at the gas station. It's very dangerous. —Sorry, I will put it out soon.

A. mustn't

B. don't have to

C. needn't

D. may not

【答案】 A

【解析】【分析】句意：——先生，你不能在加油站用手机，太危险了。——对不起，我很快就会把它挂掉。A禁止，B不必，C不必，D可能不，根据 It's very dangerous，可知是禁止，故选A。

【点评】考查情态动词，注意根据 It's very dangerous 的语境选择用法。

45．—Hi，madam．Can I take the story books out？

—No，my boy．They _____ be taken out of the reading-room．It's a rule．

A. mustn't

B. needn't

C. couldn't

D. wouldn't

【答案】 A

【解析】【分析】句意：—嗨，夫人，我能把这些故事书拿出去吗？—不，孩子，他们不可以被带出阅览室，这是制度。A. mustn't不可以，禁止；B. needn't不必；C. couldn't不可能；D. wouldn't将不会．根据It's a rule，可知这是制度，所以你不可以把这些书带出去，mustn't不可以，禁止，故答案选A。

【点评】考查情态动词，表示禁止应使用mustn't。

46．— Shall I book some seats for the concert?

—______. I've done that.

A. Yes, you may

B. No, you mustn't

C. No, you needn't

D. No, you can't

【答案】C

【解析】【分析】Yes, you may是的，你可以；No, you mustn't 不，你千万不要；No, you needn't不，你不必；No, you can't不，你不能。句意：我要预定一些音乐会的座位吗？根据下文，我已经办了。可知选C最符合语境。

【点评】考查交际用语

47．—___________ I bring you all the magazines right now?

— No, you don't have to, but you give them to me tomorrow.

A. May, can

B. Should, must

C. Can, can

D. Must, had better

【答案】 D

【解析】【分析】句意为：—我必须给你马上把所有的杂志都拿来吗？—不，不必。但是你最好明天给我。Can表示能够，may表示可能，should表示应该，must表示必须，had better表示最好做某事。根据语境可知，这里表示必须，不得不，并建议作某事，结合选项可知应选D

【点评】本题考查情态动词辨析。以及may、should、can、must、had better五个词的词意和用法。

48．—That must be Mr. John.

—No, it be him. I saw him off at the airport half an hour ago.

A. may not

B. mustn't

C. can't

D. needn't

【答案】 C

【解析】【分析】句意：——那一定是约翰先生。——不，不可能是他。我看见他在半小时前到达机场。nay not可能不是；mustn't一定不是；can't不可能是；needn't不必，英语中，肯定的推测用must；否定的推测用can't。依据 I saw him off at the airport half an hour ago. 可知不可能是他，所以应该是否定的推测，故选C。

【点评】此题考查情态动词。弄清每个情态动词的使用规则。根据语境和上下文的联系确定所使用的情态动词。

49．We __________ pay to get into the concert. It's free.

A. can't

B. mustn't

C. might not

D. don't have to

【答案】 D

【解析】【分析】句意：我们进入音乐会不必付钱。这是免费的。A.can"t 不可能； B. mustn"t 禁止； C.might not 可能不；D. don"t have to不必。根据It's free.可知音乐会是免费的，因此不必付钱。故选D。

50．—Jason, the exam is coming, but I ______ stop playing computer games!

—For better grades, my friend, I'm afraid you'll have to.

A. can't

B. mustn't

C. needn't

D. shouldn't

【答案】 A

【解析】【分析】句意：——Jason，考试就要来了，但是我不能停止打电脑游戏！——为了更好的分数，我的朋友，恐怕你会不得不停止打电脑游戏。A. 不能；B. 禁止；C. 不必要；D. 不应该。根据 the exam is coming，可知是不能打电脑游戏，故选A。

【点评】考查情态动词的用法，根据语境选出合适的情态动词，确保句子通顺。

高考英语情态动词专题复习

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常见情态动词： 情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词的基本用法： 一、can, could 1) 表示能力（体力、知识、技能）时，等于be able to 。 a)Can you lift this heavy box?（体力） b)Are you able to lift this heavy box? c)Mary can speak three languages.（知识） d)Is Mary able to speak three languages? e)Can you skate?（技能） 此时可用be able to代替。 2) can表示请求和允许。 -----Can I go now? ----- Yes, you can. / No, you can’t. 此时可与may互换。在疑问句中还可用could, might代替，不是过去式，只是语气更委婉，不能用于肯定句和答语中。（特别注明：这是在表示请求和允许的时候。） ---- Could I come to see you tomorrow? ---- Yes, you can. (No, I’m afraid not. ) can't在否定句中可以表示命令，不允许，但是语气比mustn't弱，具有劝慰的意思. 3)can表示“有时会”： A kind person can lose temper sometimes. 4）表示与五种感官和知觉的动词连用。 I can hear/ see you clearly from here. You can imagine how annoyed she was ! 2 / 17

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