【英语】高中英语情态动词练习题

【英语】高中英语情态动词练习题

一、单项选择情态动词

1．The professor warned the students that on no account ________ use mobile phones in his class.

A．should they B．they should

C．dare they D．they dare

【答案】A

【解析】

【详解】

考查部分倒装和情态动词。句意：这位教授警告学生们，在他的课堂上，决不应该使用手机。on no account意为“决不”，否定词放在句首，句子使用部分倒装，排除B、D项；这里表示应该，故选A。

2．What a pity! Considering his ability and experience, he ___________ it better.

A．need have done B．must have done

C．can have done D．might have done

【答案】D

【解析】

【详解】

考查虚拟语气中的情态动词。句意：真遗憾啊！考虑到他的能力和经验，他也许可以做得更好。can have done较少使用此结构，表示对过去行为的怀疑；用于疑问句时意为“难道

真的做了吗”，表示怀疑；need have done需要做某事，实际上却未做（表示虚拟语气）；must have done一定做了某事（表示对过去发生的事情的肯定推测）；might have done表示对发生过的事情的推测，意思是“可能已经”或“也许已经”，用于肯定句中。故D正确。【点睛】

本题是高考必考考点，一定要牢记句型意思。must have done过去肯定做了某事。should have done本应该做而实际未做。can’t have done过去不可能做了某事；shouldn’t have done 本不应该做而实际做了。need have done本有必要做某事而没做；needn’t have done本没有必要做某事；注意没有mustn’t have done的形式。

3．—Jim ________ what I said annoying though he didn’t say anything.

— So you mean you will have to apologize to him?

A．must find B．might find C．should have found D．must have found 【答案】D

【解析】

【详解】

考查must have done结构。句意：——吉姆一定觉得我说的话很让人烦，尽管他什么也没说。——所以你是说你得向他道歉？根据“though he didn’t say anything.”可知此处表示对过去事情的肯定推测，用must have done表示“过去一定做了……”，故D项正确。

4．—Daddy, would you please buy me an iPhoneX?

—If you can pass this midterm examination, you __________ have one as a reward.

A．must B．need

C．would D．shall

【答案】D

【解析】

【详解】

考查情态动词。句意：爸爸，你可以给我买部iPhone X吗？--如果你通过考试，你就会得到一部作为奖励。A. must一定；B. need必要；C. would将，会；D. shall会。根据语境可知，这句话是父亲对子女的允诺，故选D。

【点睛】

shall的用法。

1. shall作为助动词，一般用于第一人称Ⅰ和We，表示一个将来的动作，构成将来时态。shall后面接动词原形。例如：

（1）I shall think it over and Let you know my idea.我将考虑一下此事，然后告诉你我的想法。

（2）We shall have a good time in the park.我们在公园里会玩得很高兴的。

2. shall用于第一人称，表示征求对方的意愿。如：What shall we do this evening?

3. shall用于第一、第三人称疑问句中，表示说话人征求对方的意见或向对方请示。如：Shall we begin our lesson? When shall he be able to leave the hospital?

4. shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。如：You shall fail if you don't work harder. （警告） He shall have the book when I finish reading. （允诺）He shall be punished. （威胁）

比如本题，根据语境可知，这句话是父亲对子女的允诺，故选D。

5．Keep up your spirits even if you _____ fail hundreds of times.

A．must B．need

C．may D．should

【答案】C

【解析】

【详解】

考查情态动词。A. must必须；B. need需要；C. may可能，或许；D. should应该。句意：即使失败了几百次，也要振作起来。此处表示一种不确定的推测，故选C。

6．I love the weekend, because I ________ get up early on Saturdays and Sundays. A．mustn’t B．needn’t

C．wouldn’t D．shouldn’t

【答案】B

【解析】

【详解】

考查情态动词。句意：我喜欢周末，因为周六周日不必早起。A. mustn’t不能，禁止；B. needn’t不必；C. wouldn’t不会；D. shouldn’t不应该。此处表示“不必”，故B项正确。

7．No student ________ go out of school to have lunch without permission of the headteacher. A．might B．must

C．shall D．could

【答案】C

【解析】

【详解】

考查情态动词。句意：未经校长允许，任何学生不得离开学校去吃午饭。might可能；must一定，必须；shall会，将；could能够。本句是一条禁令。shall用于肯定句并且主语是第一、三人称时，表示允诺，警告，劝告等语气。故选C。

8．—I feel a little nervous.

—Take it easy. You __________ have difficulty passing the exam when you have prepared for it well.

A．mustn’t B．needn’t C．may not D．shouldn’t

【答案】D

【解析】

【详解】

考查情态动词。句意：——我觉得有点紧张。——不要着急。当你准备充分时，通过考试应该不会有困难。A. mustn’t禁止，不允许；B. needn’t不必；C. may not可能不会；D. shouldn’t不应该。结合句意可知答案为D。

9．—What’s wrong with you?

—Oh, I am sick. I ________ so much ice cream just now.

A．shouldn’t eat B．mustn’t eat

C．couldn’t have eaten D．shouldn’t have eaten

【答案】D

【解析】

【详解】

考查情态动词和虚拟语气。句意：——你怎么了？——我生病了，我刚才不应该吃那么多冰激凌。A. shouldn’t eat不应该吃；B. mustn’t eat禁止吃；C. couldn’t have eaten不可能吃；D. shouldn’t have eaten本来不应该吃。根据just now可知，是发生在过去，故选D。

10．Frankly speaking, I am not sure whether I ________ this in the old days with that kind of equipment, which looks quite odd and ridiculous.

A．should have done B．need have done C．would have done D．must have done 【答案】C

【解析】

【详解】

考查情态动词+have done。句意：坦率地说，我不确定在过去我是否会用这种设备做这件事，这看起来很奇怪和可笑。A. should have done表示本应该做某事，而实际上没有做某事；B. need have done表示本来需要做某事而没有做；C. would have done虚拟语气，表示对过去事情的假设，意思是“本来会做”；D. must have done表示对过去事情的肯定推测，译成“一定做过某事”。由“in the old days”可知，本句表示对过去事情的假设。故选C项。

11．—It’s really great to have a computer to store my photos.

—Don’t count on it too much. It ________ break down and you’d better make a copy of them. A．must B．can

C．should D．will

【答案】B

【解析】

【详解】

考查情态动词。句意：——有一台计算机来储存照片真是太棒了。——不要过度依赖它。它有时候也会出故障，你最好做一个备份。计算机出故障这是可能的事情，表示客观可能性用can。must肯定，必须；should应该；will表意愿。故B选项正确。

12．Ann said whenever her father was unhappy he ________ go out and buy something, usually something large and useless.

A．should B．could

C．would D．might

【答案】C

【解析】

【详解】

考查情态动词。句意：安说无论什么时候她父亲不高兴的时候，他就会出去买些东西，通常是一些又大又没用的东西。A. should应该；B. could能；C. would总是，愿意；D. might 可能。此处表示过去经常习惯做某事，故选C。

13．Paul did a great job in the speech contest. He many times last week.

A．need have practised B．might practise

C．must have practised D．could practise

【答案】C

【解析】

【详解】

考查情态动词。句意：保罗在演讲比赛中表现得很好。他上星期一定练习了很多次。must

have done是对过去发生的动作最有把握的猜测，意思是“一定”。故C选项正确。

14．Mr. Baker, some students want to see you. ______ they wait here or outside?

A．May B．Should C．Shall D．Will

【答案】C

【解析】

【详解】

考查Shall的用法。句意：贝克先生，有些学生想见你。他们是在这里等还是在外面

等?Shall用于第一、第三人称疑问句中，表示说话人征求对方的意见或向对方请示。故选C。

【点睛】

Shall的用法

Shall作为助动词，一般用于第一人称Ⅰ和We，表示一个将来的动作，构成将来时态。Shall后面接动词原形。例如：

（1）I shall think it over and Let you know my idea.我将考虑一下此事，然后告诉你我的想法。

（2）We shall have a good time in the park.我们在公园里会玩得很高兴的。常考的特殊用法

1. Shall用于第一人称，表示征求对方的意愿。如：What shall we do this evening?

2. Shall用于第一、第三人称疑问句中，表示说话人征求对方的意见或向对方请示。如：Shall we begin our lesson?When shall he be able to leave the hospital?

3. Shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。如：You shall fail if you don't work harder. （警告）

He shall have the book when I finish reading. （允诺）

He shall be punished. （威胁）

15．Most of the top leaders expressed a common desire at the UN conference, ______ that different cultures ______ coexist with tolerance.

A．the one ; must B．the one ; should C．one ; must D．one ; should

【答案】D

【解析】

【详解】

考查替代和情态动词。句意：大多数高层领导人在联合国大会上表达了一个共同的愿望，即不同的文化应该与宽容共存。大多数高层领导人在联合国大会上表达了一个共同的愿望，即不同的文化应该与宽容共存。替代表泛指的单数名词，通常用one替代。此处用one替代前面的a desire，是同位语；结合句意第二空用情态动词should“应该”。故选D。【点睛】

that ,it ,one 代指前面的名词时的用法

1.one 指代前面出现的可数名词，是泛指。可以和冠词连用，也可以有自己的定语。一般不能用做特指，但和定冠词连用时可以是特指。如： Please show me the cup, the red one on

the shelf.

2.It 指代前面提到的单数名词，相当于the one。当one是泛指的时候，指的是同名异物，it是指同一物体.如： ----Do you want the cup ? ---Yes ,I want it.

3.that通常用来代替前面出现的可数名词\不可数名词,主要是用来避免重复。如： The weather of Guangzhou is hotter than that of Beijing.

16．Using AI， many companies are now conducting experiments that__________ possible just a few years ago．

A．would have been B．might have been

C．shouldn't have been D．couldn't have been

【答案】D

【解析】

【详解】

考查情态动词表推测。句意：很多公司现在使用人工智能进行试验，这在几年前是不可能的。根据“a few years ago”可知，此处表示“过去不可能”，应该用couldn’t have done，故D 项正确。

17．It_____ have been Tom that parked the car here, as he is the only one with a car.

A．may B．can C．must D．should

【答案】C

【解析】

【详解】

考查情态动词表猜测的用法。句意：一定是汤姆把车停在这儿的，因为他是唯一有车的人。A. may可能；B. can可能；C. must一定；D. should应该。由as he is the only one with a car.可知一定是他把车停在这里的，非常有把握的肯定推测，故选C。

18．You _____ be right but I’m going back to check anyway.

A．should B．must C．need D．might

【答案】D

【解析】

【详解】

考查情态动词。句意：你或许是对的，但我还是要回去核对一下。A. should应该；B. must 一定，必须；C. need需要；D. might或许。本题主要考查情态动词表示推测的用法，由I’m going back to check anyway可知，我对此不确定。由此可知，D项符合题意。故选D项。【点睛】

can / could用于表推测的用法

(1) 从使用句型上看，can 通常只用于否定句或疑问句，一般不用于肯定句，而could 可用于肯定句、否定句和疑问句。两者没有时间上的差别，只是could 比 can 更委婉，更不确定。

(2) 从时间关系看，对现在或将来情况作推测，后接动词原形；对正在进行的情况作推测，后接 be doing 结构；对过去情况作推测，后接动词完成式。

二、 may / might用于表推测的用法

表示推测，两者都可用，只是 might 比 may 语气更不确定，表示的可能性更小。如本题，根据I’m going back to check anyway可知，我对此不确定。由此可知，D项符合题意。(1) 在句型使用方面：两者均可用于肯定句和否定句，但用于疑问句时，may通常不用于句首，但可用于疑问句的句中（如特殊疑问句等），而might尽管可以用于疑问句的句首，但不算普通，通常会改用其他句式（如用could等）。

三、must表示推测的用法

must 表示很有把握的推测，其意为“一定会”“肯定会”，只用于肯定句，一般不用于否定句或疑问句。表示对现在或未来的情况作推测，后接动词原形；表示对过去情况的推测，接动词完成式。

19．—Peter, you delivered a wonderful speech today.

—Thanks, but I think I ______ more attention to my stage manners during that time.

A．must pay B．should pay

C．must have paid D．should have paid

【答案】D

【解析】

【详解】

考查情态动词+have done。句意：---彼得，你今天的演讲很精彩。---谢谢，但我认为在那

段时间我应该多注意我的舞台礼仪。should have done表示本应该做某事而实际上没有做某事。由“but”可知，我那段时间本应该多注意我的舞台礼仪，而实际上并没有注意。故选D 项。

20．Skills like critical thinking and analysis ________ be found on the Internet, because they must be acquired in the context of facts.

A．can’t B．needn’t C．mustn’t D．shouldn’t

【答案】A

【解析】

【详解】

考查情态动词词义辨析。句意：像批判性思维和分析这样的能力，是不能在互联网上找到的，因为它们必须基于事实来获得。A. can’t无法，不可能；B. needn’t不需要；C. mustn’t 不可以，禁止；D. shouldn’t不应该。本题讲的是这种批判性思维的能力无法通过浏览鱼龙混杂的网上信息获得，表达的是客观上的不可能，故选A。

21．I still find it hard to imagine that such a clever child __________ make such a foolish mistake. A．shall B．must

C．can D．should

【答案】D

【解析】

【详解】

考查情态动词。句意：我仍然难以想象这样聪明的孩子竟然犯这样愚蠢的错误。should 作为情态动词，可以用来表示意外、惊喜或者在说话人看来是不可思议的，常常译为"竟会"、"居然"，这么聪明的孩子竟然犯这样愚蠢的错误。表示意外，shall表示允诺，命令等，must表示必须，can表示能力及可能性。所以答案选D。

22．Look! There are so many mistakes in your composition. You ________ have fixed full attention on it.

A．can B．should

C．need D．might

【答案】B

【解析】

【详解】

考查情态动词。句意：看！你的作文里有那么多的错误。你本应该把所有的注意力都集中在它上面的。表示“本应该做但实际上没有做”应该用should have done结构，can have done 表示可能；need表示需要；might have done表示可能做过某事；故选B。

23．—What’s wrong wi th the door?

—The key has got stuck in it and ______ come out.

A．shouldn’t B．mustn’t C．needn’t D．won’t

【答案】D

【解析】

【详解】

考查情态动词。句意：---门怎么了?---钥匙卡在里面出不来了。A. shouldn’t不应该；B. mustn’t禁止；C. needn’t 不需要；D. won’t不会。won’t表示拒绝时，其主语有时可以是“物”。故选D项。

24．--- I called you last night, but no one answered.

--- Sorry, I _______ sleeping.

A．must have done

B．would have been

C．must be

D．could be

【答案】C

【解析】

【详解】

考查情态动词。句意：—昨晚我给你打电话了，但没人接。—对不起，我一定是睡着了。分析可知，前文提及打电话无人应答，后文解释原因：肯定睡着了。情态动词must可用于must be+v-ing 表示“过去肯定在做某事”，符合句意要求。故选C项。

25．-- Catherine, I have cleaned the room for you.

---Thanks. You _______ it. I could manage it myself.

A．needn’t do B．shouldn’t have done C．mustn’t do D．needn’t have done 【答案】D

【解析】

【详解】

考查情态动词辨析。句意: ---凯瑟琳，我已经为你打扫了房间。 - - -谢谢。你本不必这么做的。我自己能行。A. needn’t do不必做某事；B. shouldn’t have done本不应该做某事； C. mustn’t do禁止做某事；D. needn’t have done本不必做某事。由“Thanks. I could manage it myself”可知，needn’t have done“ 本不必做某事，而实际上做了某事”符合句意。故选D 项。

26．—It’s so hot and uncomfortable here! Why are your windows still closed?

—Oh, I’m not to blame. They ________ open.

A．shan’t B．mustn’t C．won’t D．wouldn’t

【答案】C

【解析】

【详解】

考查情态动词辨析。句意：---这里又热又不舒服！你的窗户怎么还关着？ ---哦，不该责备我啊。窗户打不开了。shan’t= shall not意为“不可, 不应”；mustn’t=must not意为“不要”；wouldn't=would not 意为“不会，不愿意”。won’t=will not意为“不会, 不能”， will在这里表示能力、功能。例如：This auditorium will seat one thousand people. 这个礼堂能容纳一千人。这句话意思是“这扇窗不能打开”，故选C项。

27．If we had paid enough attention to the issue of the heavily-overloaded vehicles, the tragedy of the collapse of an overpass in Wuxi _____ avoided.

A．should B．could be C．should have been D．could have been 【答案】D

【解析】

【详解】

考查情态动词用法。句意：如果我们对超载车辆问题给予足够的重视，就可以避免无锡立交桥垮塌的悲剧。本句为“情态动词+have done”结构，结合句意表示“本来可以；本来能够”应用could have done结构，且主语与谓语动词avoid构成被动关系，故应用be done形式。故选D。

【点睛】

情态动词+have done的结构和用法有以下几种：

一、must have done sth.“一定做了某事”。表示对过去事情的较有把握的推测，这时只能用在肯定句中，“肯定/必须已经干过……”，在否定句和疑问句中用can’t或couldn’t或can/ could，例如：

1.From what you said, she must have told you all about it. 从你的话看，她一定告诉了你所有的事情。

二、can/could have done sth.本来能够做某事，而实际上未做；

1.But we could have done it all so much better. 但是，我们本可以把这一切做得更好。

三、can't/couldn't have done sth.不可能做过某事；

1. We could't have done it without you.

没有你我们办不成这事。

四、ought to/should have done sth.过去本应该做某事而实际上并没有做。

You should have done it when you first saw them blooming this spring. 你应该在今年春天第一次看到它们盛开的时候就挖一些的。

2.Even if it’s something you should have done earlier in the week or missed a detail on.

甚至你在一个星期前的就提早完成了一件事或者忽略了一个小细节。

28．--- Difficulties always go with me!

--- Cheer up! If God closes door in front of you, there be a window opened for you. A．must B．would

C．could D．can

【答案】A

【解析】

【详解】

考查情态动词辨析。句意：——困难总是伴随着我！——高兴点! 如果上帝在你面前关上了门，一定有一扇窗户为你打开。A. must必须；B. would将要；C. could能，会；D. can能，会。must表示对现在的状态推测时，意为“一定”，表示可能性很大的推测。符合语境。故选A。

【点睛】

1) must用在肯定句中表示较有把握的推测，意为"一定"。

2) must表对现在的状态或现在正发生的事情的推测时， must 后面通常接系动词be 的原形或行为动词的进行式。

3) must 表示对已发生的事情的推测时，must 要接完成式。

4) must表示对过去某时正发生的事情的推测，must 后面要接完成进行式。

5) 否定推测用can't。

本句中的。must表示对现在的状态推测时，意为一定，表示可能性很大的推测。符合第2点用法。

29．While it wasn’t the goal of the trip, I was rewarded with fresh insights, ones that ________

to me during the regular course of business.

A．might never happen B．could never have happened

C．should not happen D．needn’t have happened

【答案】B

【解析】

【详解】

考查虚拟语气。句意：虽然这并不是这次旅行的目的，但我得到了一些新的领悟，那些领悟在我的日常生活中是本不可能发生的。此处考查虚拟语气，“我得到新的领悟”发生在过去，故此处是与过去事实相反，应用could/might/would/need/should+have done，“本不可能发生”是could never have happened，故选B项。

【点睛】

本题考查“情态动词+have done”的虚拟语气，其常用表达有：

could have done本能做某事而未做couldn’t have done不可能做了某事

should have done本应该做某事而未做shouldn’t have done本不应该做某事而做了would have done本会某事而未做wouldn’t have done本不会做某事而做了

need have done本需要做某事而未做needn’t have done本不必要做某事而做了

30．—What do you think we can do for our aged parents?

—You ______ do anything except to be with them.

A．don’t have to B．oughtn’t to C．mustn’t D．can’t

【答案】A

【解析】

【详解】

考查情态动词辨析。句意：——你认为我们能为年迈的父母做些什么？——除了和他们在一起，你不必做任何事情。A. don’t have to不必；B. oughtn’t to不应该；C. mustn’t不可以；D. can’t不能。根据语境可知，此处表示客观性的必须，don’t have to…except to“除了……不必做……”。故选A。

【点睛】

have to表示客观需求时，使用have to的情况要比must多。have to受客观条件或环境迫使而“不得不”做某事，突出客观性。

must一般则表示命令或说话人主观认为必须要做某事，含强调语气，侧重主观性。有时候也使用be+不定式表示需要做某事，但语气较弱一些。如：I am to do it, whether I like it or not.

must表示客观性的需要时，一般翻译为“总是要（会）”。如：All men must die. 人故有一死。

ought to表示必须时，偏责任，推想等。如：You ought to work hard.

31．---We want someone to design the new art museum for me.

---_____ the young fellow have a try?

A．Shall B．May C．Will D．Need

【答案】A

【解析】

【详解】

考查情态动词。句意：——我们想找人为我设计一个新的艺术博物馆。——是不是让这位年轻小伙子试一试？shall作为情态动词,用于二三人称,表示"询问"，"警告"，"允诺"，"命令"，"决心"，"强制"等语气。will作为情态动词，用于主语是各种人称的陈述句中，表示"意愿"和"倾向"。用于第二人称的疑问句中，表"请求"。故选A。

32．--- Oh, my God! I just missed the last bus back home.

--- That’s really bad. I’m sure you ______ it, but you just didn’t hurry up.

A．had caught B．could have caught C．could catch D．can catch

【答案】B

【解析】

【详解】

考查情态动词+have done结构。句意：——哦,我的上帝!我刚好错过了回家的末班车。——这是非常糟糕的。我肯定你能赶上，但你就是不抓紧。could have done“本来能做而没有做”。故选B。

33．-- Did Jim come?

-- I don’t know. He _______ while I was out.

A．might have come B．might come

C．must have come D．should have come

【答案】A

【解析】

【详解】

考查情态动词推测用法。句意：Jim来了吗？--我不知道，在我不在的时候，可能来过。根据前文I don’t know.可知，说话者不知道Jim来没来，因此后文推测来过，但是语气很不确定，故可知选A。对过去情况的推测为情态动词+have done，must have done 一定做了某事，should have done 应该来过，不符合，故选A。

【点睛】

情态动词+have+过去分词的用法，表示推测或判断过去的情况。

can/could+have+过去分词用法：①多用于否定句和疑问句中。表示对过去某事发生的可能性的否定或质疑，意为：不可能（已经）......了-（否定句）/可能（已经）......了嘛？-（疑问句）②用于肯定句中。表示对过去没有做某事的遗憾，含有轻微的责备，意为：本来可以......的（但实际上没有......）。You could have done better, but you were too careless.（肯定句。他能做得更好的）

should/ought to+have+过去分词用法：用于肯定句中。表示对过去没有做某事的遗憾，含有责备的意思，意为：本来应该......的（但实际上没有......）。用于否定句中-表示对过去已经

做了某事的责备，意为：本来不应该......的（但实际上已经......了）。He should have been asleep.（肯定句，他本应去睡觉的）He shouldn't have been asleep.（否定句，他本来不应该去睡觉的）。

may/might+have+过去分词用法：用于肯定句和否定句中，表示对过去发生某事的可能性的推测，意为：或许（已经）....../或许还没有......。It is too late. He may have gone to bed. must+have+过去分词用法：表示对过去发生的事情十分肯定的推测。must表示推测时，不能用在否定句和疑问句中。I must have forgotten to tell you.（must 的引入，表达了说话者对过去忘记告诉你的这件事肯定推测）

needn't+have+过去分词

用法：表示对过去已经做了某事的后悔，意为：本来可以不必......的（可实际上却已经......）You needn't have taken a taxi here, for it was very near to my home.

34．— Excuse me, do you mind if I open the window?

— Well, if you __________. I can put on more clothes.

A．can B．may

C．must D．shall

【答案】C

【解析】

【详解】

考查情态动词。句意：-不好意思，我把窗户打开你介意吗?- 好吧，如果你必须这么做的话。我可以多穿点衣服。A. can能够；B. may可能；C. must一定；必须；D. shall会；将。must表示偏要，必须要做的事情，故选C。

35．-- Turn off the TV, Jack. _______ your homework now?

-- Mum, just ten more minutes, please.

A．Will you be doing B．Should you be doing

C．Shouldn't you be doing D．Couldn’t you be doing

【答案】C

【解析】

【详解】

考查含情态动词的进行时态。句意：——把电视关掉，杰克。你现在不应该做作业吗?——妈妈，请再给我十分钟。此处表示目前应该在做某事，should“应该”，这里用含情态动词的进行时态，故选C。

36．---He was satisfied with the result, wasn't he?

---No. It was so difficult that he __________have passed it.

A．shouldn't B．mustn't

C．couldn' t D．wouldn't

【答案】C

【解析】

【详解】

考查情态动词。A. shouldn't 不应该；B. mustn't禁止，不允许；C. couldn' t 不可能；D. wouldn't不会。句意：---他对结果很满意，是吗? ---不。考试太难了，他不可能通过。固定结构：couldn' t have done“不可能做某事”，此处是对过去事情有把握的否定推测。故选C。

【点睛】

情态动词+ have done结构：

1.“must + have + 过去分词”表示对过去发生的事情或状态进行推测,语气比较坚定,通常只用于肯定句.如：It must have rained last night,for the ground is wet.

2.“can / could + h ave + 过去分词”表示对过去某种情况的怀疑或不确定.can和could一般用于否定句和疑问句,could的语气较can弱.如：He can't have finished the work so soon.

3.“may / might + have + 过去分词”表示对已发生的动作或存在的状态进行不肯定的推

测,might的语气比may弱一点.这种结构主要用于肯定句和否定句,疑问句改用can或could.如：They may not have known it beforehand.

4.“need + have + 过去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余.如：I needn't have bought so much wine—only five people came.

5.“should / ought to + have + 过去分词”表示过去本该做某事但没做,其否定式表示过去不该做某事但做了,这种句式含有不满或责备之意,ought to的语气比should强一些.如：

You ought to / should have studied harder.你本应该更努力学习的.（但没有）

He oughtn't to / shouldn't have done that.他本来就不该做那件事.（可是做了）

6.“would ＋ have ＋过去分词”表示对过去的某种情况进行猜测,或本来要做某事却因某种原因未做成,通常用来说明某一情况,但不像用should或ought to那样含有责备之意.如：

I guess the poet would have been about twenty when she wrote her first poem.

Another worker wouldn't have acted like that.

37．Days later, my brother called to say he was all right, but _______say where he was. A．mustn’t B．shouldn’t C．wouldn’t D．mightn’t

【答案】C

【解析】

考查情态动词。句意：“数天后，我弟弟打电话说他很好，但不肯告诉我他在哪

里。”mustn’t“禁止”；shouldn’t“不应该”；wouldn’t“不情愿”；mightn’t“不可能”。

38．The door ________ open, no matter how hard she pushed.

A．shouldn’t B．couldn’t

C．wouldn’t D．mightn’t

【答案】C

【解析】

【详解】

考查情态动词。句意：无论她怎么使劲推，门就是打不开。A. shouldn’t不应该；B. couldn’t 不能够；C. wouldn’t不愿意；D. mightn’t可能不。will及其过去式would均可表示一种倾向性、习惯。故选C。

39．Although you ______ find bargains in London, it’s not generally a cheap place to shop. A．should B．need C．must D．can

【答案】D

【解析】

【详解】

考查情态动词辨析。句意：尽管你能在伦敦找到便宜货，但是一般不是购物便宜的地方。

A. should应该；

B. need需要；

C. must必须；

D. can能。 can用在否定句和疑问句中可以表示具体的可能性，用在肯定句中表示理论上的可能性，本句中在伦敦可能能买到便宜货就是理论上的可能性，用can表示。故选D。

40．Sometimes it seems that doors ___________ be closed for you, but remember, they are not all locked.

A．must B．should C．may D．need

【答案】C

【解析】

【详解】

考查情态动词的用法。句意：有时候，似乎大门正对你关闭，但请记住并非所有大门都被上了锁。A. must一定，必须；B. should应该；C. may可能，也许；D. need需要。本句不宜使用绝对化的语气，从sometimes，seems等提示词可看出应使用较为温和的推测语气，因此may be（或许，也许）符合语境，而过于绝对的推测，如must be（一定是，肯定是）应予排除。此外should和need在此并不表示推测，更不符合本句语境。故选C。

高一英语 情态动词练习-牛津英语

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