英语情态动词专项练习题含答案解析

英语情态动词专项练习题含答案解析

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．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。

3．— 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。

4．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。

5．—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。

6．A hard-working man ______ become a great scientist, but a great scientist _______ be a hard-working man.

A. can't; can

B. may not; must

C. can't; must

D. may not; can

【答案】 B

【解析】【分析】句意：一个勤奋的人可能不会成为一位伟大的科学家，但是一位伟大的科学家一定是一个勤奋的人。can't不可能，不会；can可能，能，会；may not 可能不；must 必须，一定；结合句意，可知，第一个空为“可能不”，第二个空为“一定”，故答案为B。

【点评】考查情态动词。掌握情态动词表推测时的意义和用法。

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．—Who it be that is knocking at the door?

—It be father, but I'm not sure.

A. call; must

B. can; may

C. must; can

D. may; must

【答案】 B

【解析】【分析】句意：——敲门的人可能是谁呢？——他可能是父亲，但是我不确定。第一空，can可能，表猜测用语疑问句形式，may是表可能；第二空，根据后面的but I'm not sure，可知表示不确定的猜测，应填may，故选B。

【点评】此题考查情态动词辨析。先弄清每个情态动词的使用规则。根据上下文的联系确定情态动词的使用。

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．—Could you go to the bookshop with me? I want to buy The Grass House by Cao Wenxuan.—Sorry, I . I've promised Mum to go home right after school.

A. can't

B. couldn't

C. needn't

D. mustn't

【答案】 A

【解析】【分析】句意：—你能和我去书店吗？我想买一本曹文轩写的《草房子》。—对不起，我不能去。我答应我妈妈放学后直接回家了。在问句中的could表示委婉语气，不是过去式，所以回答时用can't，不能；needn't 不需要；mustn't一定不要，千万别。结合句意，故选A。

【点评】考查情态动词，回答could提问的时候应使用can。

12．—I missed last night's Everlasting Classics（《经典咏流传》）！

—You care. You can watch it online later.

A. mustn't

B. can't

C. may not

D. needn't

【答案】 D

【解析】【分析】句意：——我错过了昨晚的《经典咏流传》！——你不必在意，以后你可以上网看。A. mustn't不允许；B.can't不能； C. may not可能不； D. needn't不必。根据You can watch it online later. "可知，此处意思是你不必在意。故选D。

【点评】考查情态动词。弄清每个情态动词的使用规则。

13．— Dick, ________ I use your e-dictionary? — Yes, sure. ________ you give it to David after you use it?

A. will; Would

B. may; Might

C. can; Could

D. shall; Should

【答案】 C

【解析】【分析】句意:一Dick我可用一下你的电子词典吗?一当然可以。在你用完后你能

把它给他David吗？根据句意及题干分析第一空表示请求允许，所以可以用may或can;第

二空是表示对别人的请求.所以用could表示更加委婉，故选C。

14．—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。

15．— I take the magazine out of the reading room?

— I'm sorry you .

A. Could; couldn't

B. Must; couldn't

C. Will; can't

D. May; can't

【答案】 D

【解析】【分析】句意：——我可以把杂志带出阅览室吗？——对不起，你不能。could

能，可以；must必须；will将；may可以；can能，可以，can't不可以，不能。此处表示

请求许可，用could或者may，由could或者may构成的一般疑问句，肯定回答用yes，主

语+can，否定回答用sorry，主语+can't，结合选项，故答案选D。

【点评】考查情态动词的辨析。注意理解句意，理解选项，根据语境，选出正确的答案。

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．Now all passengers show their ID cards and go through the safety check before they take a train.

A. would

B. may

C. could

D. must

【答案】 D

【解析】【分析】句意：现在所有的乘客必须出示身份证并通过安检，才能上火车。A.愿，要;B.可以;C.可以，表示许可，可能，表示肯定的推测;D.must必须。旅客必须出示身份证并通过安检才能上火车，必须:must。故选D。

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．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。

21．You _____ tell anybody about this——it's a secret.

A. can

B. must

C. mustn't

【答案】C

【解析】【分析】句意：你不得告诉任何人有关这事的情况。这是一个秘密。A.can能、会，表示主语所具备的能力；B. must必须，强调主观愿望“必须”做某事；一定，对当前情

况做语气很强的肯定推测；C. mustn't不准，不允许，禁止。表示“禁止”某人做某事。后句：it's a secret（是一个秘密），可以推测出“禁止”告诉别人，故选C。

22．—Must I come before 6: 30 tomorrow?

—No. You______. There will be plenty of time.

A. mustn't

B. can't

C. couldn't

D. needn't

【答案】 D

【解析】【分析】句意：—明天我必须六点半前到吗？—不，你不必，将有足够的时间。Must是“必须”的意思，当其变为一般疑问句时，否定回答要用needn't“不必”；肯定回答用must“必须”，mustn't不是“不必”的意思，而是一种禁止，一定不能做的意思。故选D。【点评】本题考查情态动词的用法。熟记must问句的回答。

23．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。

24．—I've bought all the food for the party tonight.

—Thank you. Then I _______ go to the supermarket.

A. can't

B. mustn't

C. shouldn't

D. needn't

【答案】 D

【解析】【分析】句意：－今天晚上我买好了所有晚会的食物。－谢谢你。那么我就不必去超市了。A. can't不能；B. mustn't不准，不允许，禁止；C. shouldn't不应该；D. needn't 不必。你买好了，我就不必去买了。故选D。

【点评】考查情态动词，表示不必要应使用need的形式，要牢记不同的情态动词的意思。

25．— We've ordered too much food. I eat any more.

—Never mind. Let' take it home.

A. can't

B. mustn't

C. needn't

D. shouldn't

【答案】 A

【解析】【分析】句意：——我们已经点了太多的食物，我不能再吃了。——没关系，我们带回家吧。can't不能；mustn't必须不；一定不要；needn't不必；shouldn't不应该。根据句意可知选Ａ。

【点评】考查情态动词辨析。

26．—Must I go out to have dinner with you, Mum?

—No, you , my dear. You're free to make your own decision.

A. shouldn't

B. mustn't

C. needn't

D. can't

【答案】 C

【解析】【分析】句意：——妈妈，我必须跟你出去吃饭吗？——不，你不必，亲爱的。你可以自由作出你的决定。问句是must 构成的一般疑问句，根据no，可知是否定回答，must的否定回答应会使用 needn 't，故答案是C。

【点评】考查情态动词needn't的用法，注意must构成的一般疑问句的否定回答。

27．Mr. Zhou can't find his ID card anywhere. It be lost.

A. can't

B. should

C. must

【答案】 C

【解析】【分析】句意:周老师到处都找不到他的身份证。它一定丢失了。A.不可能，不能;B.应该;C.一定，必须。表示推测时，肯定用must表示“一定”,用might表示“可能”;否定的推测常用can't，表示“不可能”。本题表示到处找不到，作肯定的推测。故选C。

28．— 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。

29．— Is that Mr. Green?

— Impossible. He has gone to America. It be him.

A. could

B. must

C. can't

D. might

【答案】C

【解析】【分析】句意：——那是格林先生吗？——不可能，他去美国了。不可能是他。

A.could可能，表示对目前情况作的可能的推测；可以，表示委婉的语气；

B. must必须，强调主观的愿望；一定，表示对目前作的肯定推测；

C. can`t不能，表示能力；不可能，表示否定的推测；

D. might可能，表示可能的推测。根据句意，他去美国了，所以那不可能是格林先生。故选C。

30．You return the book now. You can keep it until next week if you like.

A. have to

B. can't

C. mustn't

D. needn't

【答案】 D

【解析】【分析】句意：你不必现在归还这本书，如果你喜欢，你可以到下周再还。have to必须；can't不能；mustn't不准，一定不要；needn't不必。根据You can keep it until next week if you like.（你可以到下周才还。），可知现在不必还，用needn't。故选D。

31．— 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。

32．—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。

33．—Could you please play tennis with me now?

—Sorry, I ________. I have to finish my homework first.

A. can't

B. couldn't

C. shouldn't

D. wouldn't

【答案】 A

【解析】【分析】句意：——请问，现在你能和我一起打网球吗？——对不起，我不能。我必须先完成作业。can't不可以，couldn't可能不，shouldn't不应该，wouldn't不愿意。根据Could you please……?表示请求，不同意，应说不可以，故答案选A。

【点评】考查情态动词，注意识记情态动词的用法和理解句意。

34．— What's the matter with Tom? He's been absent for two days.

— Oh! He be ill. Let's go and see him.

A. need

B. might

C. must

D. should

【答案】 C

【解析】【分析】句意：——汤姆怎么了？他已经缺席两天了。——哦！他可能病了。我们去看看他吧。need需要，指有必要；might可能，表示推测语气，可能性很小；must一定，表肯定推测；should应该，表建议。根据Let's go and see him.，可知推测汤姆生病了，去看看汤姆，表示肯定的推测，用must，故选C。

【点评】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。

35．—1ook! It be David in the classroom.

—It be him. Because I saw him in the library a moment ago.

A. may; mustn't

B. must; can't

C. need; can't

D. mustn't; can 【答案】 B

【解析】【分析】句意：——看！教室里一定是大卫。——不可能是他。因为我刚才在图书馆见过他。 may可以；must必须，一定；can能，可能；need需要；can't 不可能，不可以；mustn't禁止。根据下文I saw him in the library a moment ago.可知不可能是David，要用can't；所以上文一定是肯定的猜测，要用must （be）。故选B。

【点评】考查情态动词表示猜测的用法。理解情态动词的词义和用法，根据语境，选择正确的情态动词。

36．Jenny is only eight years old, but she cook.

A. may

B. must

C. should

D. can

【答案】 D

【解析】【分析】句意：珍妮只有八岁，但她会做饭。A：may 可能；B：must必须；C： should应该； D： can会，能。根据Jenny is only eight years old,和连词but，表示与前句是转折关系，可知她能做饭，故选D。

【点评】考查情态动词辨析。理解情态动词词义和用法，根据语境选择正确的情态动词。37．— _________ I take my cousin Shirley with us, Mr. Wu？

— Yes, but we'll get there by bike. ____________ she ride a bike?

— Yes, and she ___________ ride a bike when she was only six years old.

A. Could; can; could

B. Can; can; can

C. Can; could; could

D. Could; could; can

【答案】 A

【解析】【分析】句意：-我能带我表弟雪莉和我们一起吗，吴先生？-是的，但我们将骑自行车去那儿。她会骑自行车吗？-是的，她在六岁时就能骑自行车了。can，能，会，它的过去式是could。在一般疑问句中could多表示委婉语气，而不是表过去。所以选A。

38．—Shall we take a car?

—No, we__________ . It's only five minutes' walk.

A. can't

B. mustn't

C. needn't

D. couldn't

【答案】 C

【解析】【分析】句意：——我们应该坐车吗？——不，我们没必要。仅仅5分钟步行。A.不可能；B.禁止；C.不需要，没必要；D.不可能。根据后句 It's only five minutes' walk.仅仅5分钟的步行，所以没必要坐车，故选C。

【点评】考查情态动词用法，注意平时识记，理解句意。

39．—Is that boy Scott？

—No, it be Scott. Scott is much taller.

A. can

B. can't

C. mustn't

【答案】 B

【解析】【分析】句意：——那个男孩是Scott吗？——不，他不可能是Scott。Scott个字高很多。A可能、可以；B不可能；C禁止。根据题干中Scott is much taller.可知斯科特更高，所以那个男孩不可能是斯科特，如表示对现在情况的否定推测，应用can't+动词原形，故答案选B。

【点评】考查情态动词，注意平时识记其用法，理解句意。

40．—Must I go there with you?

—No, you . David go with me.

A. mustn't; can

B. can't; must

C. don't; should

D. needn't; may 【答案】 D

【解析】【分析】句意：——我必须和你一起去吗？——不，不必。大卫可能和我一起去。情态动词must的一般疑问句，否定回答用needn't，情态动词may表示肯能，半肯半否的猜测，故选D。

【点评】考查情态动词，注意must的一般疑问句，否定回答用needn't的用法。

41．Recently people in China ____take much money on shopping because they often use Alipay （支付宝）

A. needn't

B. mustn't

C. shouldn't

D. can't

【答案】 A

【解析】【分析】句意：最近中国人没必要购物带许多钱，因为他们经常使用支付宝。A.没必要；B.禁止；C.不应该；D.不可能。因为有支付宝，所以人们购物时没必要带许多钱，故选A。

【点评】考查情态动词辨析，注意平时识记其词义，理解句意。

42．—Linda, will it rain this afternoon?

—It ______ rain. Who knows? The weather changes so quickly in spring.

A. may

B. must

C. will

D. can

【答案】 A

【解析】【分析】句意：——琳达，今天下午下雨吗？——可能下雨，谁知道？春天天气变幻无常。A.可能；B.必须；C.将要；D.能够。根据 The weather changes so quickly in spring. 可知可能下雨，故答案是A。

【点评】考查情态动词辨析，表示或然性的推测一般使用may。

43．—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。

44．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。

45．—Excuse me, could you tell me where I can buy a guidebook?

—Sorry, I'm new here. You _____ ask the policeman over there.

A. shall

B. can

C. must

D. need

【答案】 B

【解析】【分析】句意：——打扰一下，你能告诉我在哪里买导游书吗？——对不起，我是新来的，你可以问一下那边的警察。A.将要；B.能，可以；C.必须；D.需要。本句是一个建议，能够表达建议的使用can，故答案是B。

【点评】考查情态动词辨析，注意提出建议时可以用can或者may。

46．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。

47．—Kate, it's midnight! Why stay up so late?

—I'd like to go to bed earlier, but the test paper be handed in tomorrow morning.

A. may

B. should

C. can

D. must

【答案】 D

【解析】【分析】句意：Kate，都半夜了，你为什么熬夜到这么晚？我想要早一点睡觉，但是这个试卷明天早上必须交上。may”可以“；should”应该“；can”能，会，可能“；must”必须“。根据句意Kate熬夜到很晚，说明试卷明天必须交上，语气非常强，故应选D。

【点评】考查情态动词辨析，区分may，should，can，must的含义和用法。48．—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。

49．—________ I have a cup of tea, Miss Anderson?

—Of course. Here you are.

A. May

B. Must

C. Need

D. Should

【答案】 A

【解析】【分析】句意：——安德森小姐，我可以喝一杯茶吗？——当然。给。A可以，表询问、请求；B必须，表命令；C需要；D应该，表建议。根据 I have a cup of tea.我可以喝一杯茶，可知是请求，应用情态动词may，故选A。

【点评】考查情态动词辨析。注意掌握不同情态动词的用法。

50．—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。

英语情态动词专项练习题及答案含答案解析

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