(英语)高中英语情态动词解题技巧及练习题及解析

（英语）高中英语情态动词解题技巧及练习题及解析

一、单项选择情态动词

1．Lack of sleep _______ lead to weakened immunity and memory, and also slow physical growth.

A．shall B．must C．should D．can

【答案】D

【解析】

【详解】

考查情态动词辨析。句意：睡眠不足会导致免疫力和记忆力下降，还会减缓身体发育。A. shall将；B. must必须；C. should应该；D. can会，表示理论上或是逻辑判断上，用can，故选D。

2．Traveling by subway ______ sometimes be quite an adventure, especially during the rush hour.

A．must B．can C．shall D．should

【答案】B

【解析】

【详解】

考查情态动词。句意：乘地铁旅行有时可能相当冒险，尤其是在交通高峰期。A. must必须；一定；B. can能够；可能；C. shall将会；D. should应该；应当。本句中can表示客观可能性（客观原因形成的能力），故选B。

3．—I don’t really like Janes. Why did you invite him?

—Don’t worry. He come. He said he was’t certain what his plans were.

A．must not B．need not C．would not D．might not

【答案】D

【解析】

考察情态动词，题干中的he wasn’t certain说明他可能不来，可能来，因此使用不完全否定，might not。

4．—Can I pay the bill by check?

—Sorry，sir．But it is the management rules of our hotel that payment _____ be made in cash．

A．shall B．need

C．will D．can

【答案】A

【解析】

【详解】

考察情态动词用法。句意：——我能用支票付账吗?——对不起,先生。但这是我们酒店的管

理规定,支付要用现金。shall可以表示命令，警告，强制，或者指规则和法律要求做的事情。本题正是考察了shall表示按照规则和法律要求做的事情。故A正确。

5．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。

6．My sister met him in the street yesterday afternoon, so he ______ your lecture. A．shouldn’t have attended B．couldn’t have attended

C．mustn’t have attended D．needn’t have attended

【答案】B

【解析】

试题分析：考查情态动词用法。Shouldn’t have done本不应该做某事，实际上却做了（虚拟语气）；couldn’t have done不可能做某事（对过去情况的推测）；needn’t have done本不需要做某事，实际上却做了（虚拟语气）；句意：我的姐姐昨天下午在街上遇见了他，所以他不可能去听了你的演讲。故B正确。

考点：考查情态动词用法

点评：考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；needn’t have done 本没有必要做某事；注意没有mustn’t have done的形式。

7．---Can I pay the bill by credit card?

---Sorry, sir. But it is the management rules of our hotel that payment ______________ be made in cash.

A．shall B．need

C．will D．must

【答案】A

【解析】

【详解】

考查情态动词词义辨析。A. shall用于法律法规或条文中，表示义务、规定等；B. need需

要；C. will会；D. must必须。句意：——我能用信用卡支付么？——对不起，先生，现金支付是我们酒店的管理规定。故A项正确。

8．We’ll make the final decision on our scheme. ______ you change your mind, please inform us as soon as possible.

A．Should B．Were C．Would D．Had

【答案】A

【解析】

【分析】

【详解】

考查虚拟语气。句意：我们将对我们的计划做最后决定。如果你改变主意，请尽快通知我们。根据语境，此处用虚拟语气，表示与将来相反，从句用should+动词原形，省略if，should提前，陈述句是：If you should change your mind……。故选A。

【点睛】

虚拟语气中的倒装

当虚拟条件句中含有 were，had，should时，可以将if省略，然后将 were，had，should，移至句首：

1）If he should fail, he would kill himself.

→Should he fail, he would kill himself.

万一失败，他就会自杀。

2）If I were you, I would do it at once.

→Were I you, I would do it at once.

假若我是你，我就会马上做。

要是我能做此事，我一定会做。

3）If he had seen you yesterday, he would have asked you about it.

→Had he seen you yesterday, he would have asked you about it.

他昨天要是看到了你，他就会问你这事了。

该小题属于上述的第一种情况。should作为情态动词，有一种特殊的用法：在虚拟条件状语从句中表示与将来事实相反的虚拟语气，可以把should放在句首，即主语前，从而省略从属连词if。原来的表述为：If you should change your mind。故选A。

9．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。

10．—_______ you distu rb me now? I’m busy preparing a report.

— Terribly sorry, but I have something urgent to tell you.

A．Need B．Should C．Might D．Must

【答案】D

【解析】

【详解】

考查情态动词特殊用法。句意：—你非要现在打扰我吗？我正在准备一份报告。—真对不起，但是我怕有紧急事情告诉你。A. Need需要；B. Should 应该；C. Might也许；D. Must 必须；一定；偏偏，非得；根据语境可知must表示“偏偏，非得”符合上下文语境，用来指责对方。故D项正确。

11．It wasn’t right to me that such near neighbors not know one another.

A．could B．would

C．should D．might

【答案】C

【解析】

【详解】

考查情态动词。句意：对我来说，很不正常，如此近的邻居居然不认识。A. could可能，能够；B. would将；C. should竟然；D. might可能，也许。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"，住的这么近的邻居居然不认识。表示意外，所以答案选C。

【点睛】

should的用法

1、should 作为情态动词,通常用来表示现在或将来的责任或义务,译作“应该”、“应当”,这时它可以和 ought to, be supposed to 互换使用.例如：You should （= ought to ） tell your mother about it at once.

2、should 作为情态动词,可以用在条件状语从句中,表示语气较强的假设,译作“万一”、“竟然”,这时也可将 should 置于从句之首,即将 should 放在主语前面,而省略从属连词 if。例如：If you should fail to come, ask Mrs Chen to work in your place. （= Should you fail to come, ask Mrs Chen to work in your place. ）

3、should 作为情态动词,可以表示谦逊、客气、委婉之意,译为“可……”、“倒……”。例如：I should say that it would be better to try it again.

4、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.尤其在以 why, who, how 等开头的修辞疑问句或某些感叹句中常常译为“竟会”、“居然”。例如：How should I know it ? 我怎么会知道这件事?

5、should 作为情态动词,可以用来表示有较大可能实现的猜测、推论,通常译为“可能”、“总该……吧”,相当于 be expected to 。例如：They should be home by now, I think. 我想现在他们总该到家了吧。

6、should 作为情态动词,用在由 so that, for fear that, lest 引导的目的状语从句和 in case （that）引导的条件状语从句中,有“能够”、“可能”、“会”之意。例如：They got up early so that they should （= could/ might） catch the first bus in time.

7、should 作为情态动词,可以用于下列虚拟语气句中：

(1）用在表示与将来事实相反的条件状语从句中,构成“ If …… should （do sth）……, …… would/ could/ might （do sth.）…… ”句式。

(2) 用在 suggest （propose）, arrange, plan, decide, advise, order, demand, request, desire, insist 等表示“建议”、“要求”、“命令”、“决定”、“安排”、“计划”、“主张”的动词后面接的宾语从句中。这里的 should 也可以省略。

本句中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"，住的这么近的邻居居然不认识。表示意外，所以答案选C。

12．I often felt troubled in my teens and my grandma ________ comfort me, saying “Life is like that, dear”.

A．would B．might C．should D．must

【答案】A

【解析】

【详解】

考查情态动词。句意：在我十几岁的时候，我经常感到烦恼，我的奶奶会安慰我说，“生活就是这样，亲爱的”。此处是would+动词原形，表示“过去总是做某事”。故选A。

13．— Mum, little Ray broke his toys again!

—It doesn't matter. You see, accidents _____happen.

A．shall B．should C．must D．will

【答案】D

【解析】

【详解】

考查情态动词辨析。句意：——妈妈，小雷又弄坏了他的玩具。——没事的，你看，意外总会发生。A. shall将要，会；B. should应当；C. must必须；D. will总是。Will可以表示习惯，意思为“惯于，总是”。故D选项正确。

【点睛】

will/would是情态动词，其表达的意思如下。

(1)表示意志或意愿：决心，愿意，……好吗?

We will do our best to save the child. 我们会尽力抢救这个孩子。

I told her to stop crying, but she just wouldn’t listen. 我叫她别哭，可她就是不愿听。

注：表示请求、建议或征求对方意见时，用Would you…? 比用Will you…?更婉转。如：Will/Would you please keep the door open? 请让门开着好吗?

Will/Would you go with me? 你愿意和我一起去吗?

(2)表示真理或习惯：惯于，总是。如：

Oil will float on water. 油总是浮在水面上。

She will listen to music alone in her room for hours. 她独自在房间里听音乐，一听往往就是几小时。

He would get up early when he lived in the country. 他住在乡下时总是早起。

(3)表示要求：一定，必须。如：

You will report to me afterward. 你稍后一定要向我报告。

(4)表示猜测：可能，大概。如：

This will be the house you’re looking for. 这大概就是你找的那所房子了。

(5)表示功能：能。如：

This auditorium will/would seat one thousand people. 这个礼堂能容纳一千人

分析句子可知，本句中的will表示习惯，意思为“惯于，总是”且符合语境。故D选项正确。

14．One of our rules is that every student _______ wear school uniform while at school. A．might B．could

C．shall D．will

【答案】C

【解析】

【详解】

考查情态动词辨析。句意：我们其中一条规则要求每个学生在校期间都要穿校服。shall可以表示“命令，警告，强制要求；允诺；法律，规定要做……”，结合句意可知C正确。

15．—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。

16．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。

17．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）

18．Mark ______ have hurried. After driving at top speed, he arrived half an hour early. A．needn’t B．wouldn’t C．mustn’t D．couldn’t

【答案】A

【解析】

考查情态动词。need’t h ave done 本不必要做某事，句意：迈克本不必要着急的。他以全速驾驶后，他早到了半个小时。wouldn’t不会，mustn’t禁止，couldn’t不可能，所以选A。

19．--- 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。

20．(2018·天津) I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.

A．should leave B．must have left

C．might leave D．could have left

【答案】D

【解析】

【详解】

考查情态动词表推测。句意：我不能找到我的钱包了，昨天我有可能把它落到超市了，但我不确定。根据句中时间状语yesterday可知，是对过去事情的推测，故用情态动词+ have done，再根据后句but I’m not sure.可知，此推测为不能肯定的推测，故用情态动词could，表示“可能”。故选D。

【点睛】

情态动词是每年高考的热点也是难点。本题抓住两点：第一、时态。根据句中时间状语可以判断出是对过去事情的推测，故用情态动词 + have done；如果是对现在事情的推测，才用情态动词+v原形。第二、情态动词的选择。must为肯定推测，表示“一定”，could为不肯定推测，表示“可能”，这样就能选出正确答案。

21．—What does the sign over there read？

—“No person___smoke or carry a lighted cigarette,cigar or pipe in this area.”

A．will B．may

C．shall D．must

【答案】C

【解析】

【详解】

考查情态动词辨析。句意：---那边的牌子上写的是什么?---任何人不得在本地区吸烟或携带点燃的香烟、雪茄或烟斗。A. will表示现在的意志、愿望等，意为要，希望； B. may表示许可，或用于请求许可，意为可，可以；C. shall在陈述句中用于第二人称或第三人称，表示说话者的意志、命令、约定、决心、警告、威胁、预言等，意为必须，应该，要，得，给； D. must意为必须, 要,应当。分析句意可知，词句表示任何都不准在这个区域吸烟或携带点着的香烟、雪茄或烟斗。故选C项。

22．Tom, you _____ leave all your clothes on the floor like this!

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

【答案】B

【解析】

【详解】

考查情态动词辨析。句意：汤姆，你不要把所有的衣服都这样扔在地板上! A. wouldn’t 不会； B. mustn’t 禁止；C. needn’t不需要；D. may not不可以。本句为祈使句，所以mustn’t “禁止”符合句意。故选B项。

23．We ______ have watered these flowers yesterday. Today’s rain will be too much for them. A．can’t B．shouldn’t C．may not D．mustn’t

【答案】B

【解析】

【详解】

考查情态动词。句意：我们昨天不应该给这些花浇水。今天的雨对他们来说太大了。A. can’t不可能；B. shouldn’t不应该；C. may not或许不会；D. mustn’t禁止，不允许。情态动词的完成时should’t have done“本不应该做而做了”。根据Today’s rain will be too much for them.可知，此处指昨天不应该给这些花浇水。故选B。

【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 + have + 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.

24．—Are you going on a holiday after the exam?

—Well, I haven’t decided yet. I ________ find some other choices.

A．would B．might C．must D．should

【答案】B

【解析】

【详解】

考查情态动词辨析。句意：——考试后你要去度假吗?——嗯，我还没有决定。我可能会发现一些其他的选择。A. would将会；B. might可能；C. must必须；D. should应该。根据上文“ I haven't decided yet”可推断，我可能还有别的选择，表示可能性，might符合语境，故选B。

25．—I heard they went skiing in the mountains last winter.

—It true because there was little snow there.

A．may be not B．won’t be C．couldn’t be D．mustn’t be

【答案】C

【解析】

【详解】

考查情态动词辨析。句意：我听说他们去年冬天去山里滑雪。--不可能是真的，因为那里几乎没有雪。A. may be not可能不；B. won’t be 不会；C. couldn’t be不可能是；D. mustn’t be禁止。根据because there was little snow there.可知这里是否定推测，couldn’t be“不可能是”符合句意，故选C项。

26．---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。

27．You ________ be Caro l. You haven’t changed a bit after all these years.

A．must B．can C．will D．shall

【答案】A

【解析】

【详解】

考查情态动词。句意：你肯定是卡罗，这些年你一点也没有变化。must表示对现在的肯定推测；can表示推测，表示可能性；will表示意愿；shall表示表示决心、命令或指示。根据下文“这些年你一点用没有改变”可知，前文表示肯定性推测。故选A。

must表推测的用法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。You have worked hard all day. You must be tired. 你辛苦一整天，一定累了（对现在情况的推测判断）I didn’t hear the phone. I must have be asleep. 我刚才没有听到电话，我想必是睡着了。

28．He ______ writing the paper now. He hadn’t written a single word whe n I left him ten minutes ago.

A．shouldn’t be B．can’t have finished

C．can’t be D．mustn’t have finished

【答案】B

【解析】

【详解】

考查推测句。句意：他现在不可能写完了卷子。我十分钟之前留下他时，他还没有写一个字。根据句意可知，此处考查对过去情况的否定推测，其表达为can’t have done不可能做某事，故选B项。

【点睛】

本题考查推测句

对过去情况的肯定推测是must have done

对过去情况的否定推测是can’t/couldn’t have done

例如:

The ground is wet, so it must have rained last night.

He can’t have finished his work, because he played basketball all day yesterday.

29．You ________ give me a lift. I want to walk home for exercise.

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

【答案】A

【解析】

【详解】

考查情态动词。句意：你不必让我搭车。我想步行回家锻炼身体。A. needn’t不必；B. couldn’t不能；C. can’t不会；D. mustn’t禁止，不允许。根据I want to walk home for exercise.可知，你不必让我搭车。故选A。

考点：考查情态动词

30．--- 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

【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。

31． ---Is Jack on duty today?

---It ________ be him. It's his turn tomorrow.

A．mustn't B．won't C．can't D．needn't

【答案】C

【解析】

【详解】

考查情态动词表示推测。句意：--今天杰克值日吗？--不可能是他。明天该轮到他。can’t be 用于否定推测“不可能是”，must表示推测的时候，表示“肯定是”，won’t不愿意，needn’t 不必，故选C。

32．—I saw your uncle take a taxi to the airport. Why didn’t you drive him there?

—I __________. But my car ___________ .

A．would; was fixed B．would have; was fixed

C．would have; was being fixed D．did; was being fixed

【答案】C

【解析】

【详解】

考查虚拟语气和动词时态。句意：---我看见你叔叔坐出租车去机场了。你为什么不开车送他去那里呢？---我本来想送他了。但是我的汽车当时正在修理。根据语境可知说话人表示本来想做但是没有做的事情，应该用would have done；而修理汽车是指当他叔叔去机场的时候，表示过去正在进行的动作，故答案选C。

33．—______ you sing and dance at this late hour of the night?

—Sorry, I will stop right now.

A．May B．Shall

C．Will D．Must

【答案】D

【解析】

试题分析：考查情态动词的用法。 May可以，可能 Shall： 用于第一三人称的疑问句，表示说话人征求对方的意见或向对方请示。?用于二三人称的陈述句表示说话人给对方的命令、警告、允诺、威胁或决心等。?用于法律、法规条文、合同等，按规定应该履行的义务等。Will 表示请求或建议；表示意愿或表示现在的习惯D. Must表示“必须”“一定”“偏要”之意。此处must表示“偏要,偏偏”。句意：——你偏要在深夜又唱又跳吗？——很抱歉，我会马上停止。

考点：考查情态动词的用法。

34．They were abroad during the months when we were carrying out the investigation, or they __________to our help.

A．would have come B．could come

C．have come D．had come

【答案】A

【解析】

试题分析：本句考查的是一个含蓄的虚拟条件句，句中的or相当于if they had not gone abroad.因为前面句中使用的是were，说明这个虚拟语气是与过去事实相反，所以主句中使用的是“情态动词+have done”的形式。句意：当我们在做调查的那几个月里，他们一直在国外，否则的话他们早就来帮助我们了。故A正确。

35．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。

36．-Jenny took the 8：00 bus to Guangzhou this morning.

-Really? He＿＿the 9:00 train. It's much more comfortable and safer to travel by train. A．could have taken B．should take

C．must have taken D．can take

【答案】A

【解析】

【详解】

考查情态动词。句意：Jenny今天早上坐8：00的客车去广州了。真的吗？她本能够坐9：00火车的，乘火车去旅游更安全舒适。情态动词加have done表示对过去的猜测，A.表本可能做了某事；B.表应该做某事；C.表过去一定做了某事D.可能，能够做某事。根据句意，此处是对过去的虚拟，故选A。

37．–Will you read me a story, Mummy?

--OK. You ______have one if you go to bed as soon as possible.

A．might B．must C．could D．shall

【答案】D

【解析】

【分析】

【详解】

考查情态动词。句意：——妈妈，给我讲个故事好吗？——好，如果你尽快上床睡觉，我就给你讲一个。might表示“或许”；must表示“必须”；could表示“可能”；shall在此处表示“允诺”，符合句意，故选择D项。

38．—Isn’t that Ann’s husband over there?

— No, it ________ be him —I’m sure he doesn’t wear glasses.

A．must not B．can’t C．won’t D．may not

【答案】B

【解析】

【详解】

考查情态动词：句意：那不是安的丈夫吗？---不，肯定不是他，我确定他不戴眼镜。A. must not禁止;B. can’t 不能;C. won’t不会;D. may not可能不。表示否定的推测，不可能，用can’t。故选B项。

39．—Life ____ be very hard for people living in the north of Canada as it is very cold there in winter.

—Yes, the weather there _____ be as low as 60℃ below zero.

A．must; can B．shall; must C．will; should D．has to; can

【答案】A

【解析】

【详解】

考查情态动词。根据句意：——对于生活在加拿大北方的人来说生活肯定很艰难，因为冬天那儿很冷。——是的，那儿的天气可能会达到零下60度。must表肯定推测，意为“肯

定，一定”，can表客观上的可能性，意为“可能”。根据语境及选项可知，A选项正确。故选A。

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。

高中英语三大类题型超详细解题技巧

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英语情态动词专项练习题及答案含答案解析

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高中英语情态动词详解 1. 表示请求和允许: can，could ，may，might. 过去式使语气更委婉，答语应用原形。 --- Could I use your computer tomorrow morning? --- Yes，you can.( 否定回答可用：No，I’m afraid not.) 1)can表示理论上的可能性，指某事或情况可能发生，但并不说明实际上真的发生. Children can be very tiring. 2)对现在事情的推测：情态动词+do 对过去事情的推测：情态动词+have done 对已完成事情的推测：情态动词+have done 3)反意问句： He may know the plan，doesn’t he? You must have studied English before，haven’t you? You can’ t have been caught in the rain last night，were you? 3．can & be able to 在肯定句中can表示有“能力”做，be able to表示通过想办法/努力等而能够做成了某一件事，相当于managed to do…或succeeded in doing sth. Birds can fly. The fire spread through the hotel very quickly but everyone was able to get out. 4. may / might as well do sth“还是…好”、“不妨” You might as well tell me the truth. 你还是把真相告诉我的好。 5. must和have to 1) must表示的是说话人的主观看法，而have to强调客观需要。 2）否定形式含义不同。mustn’t禁止，不许可，don’t have to不必 3) must 偏要（做令人不快的事）eg. Must you shout so loudly? 6. shall和should 1)表示说话人征求对方意见和向对方请示，用于第一、三人称。 When shall my father be able to leave hospital? Shall2) 用于第一、三人称2) 用于第二、三人称，表示说话人给对方的命令、警告、允诺或威胁以及说话人的决心。 You shall go with me (命令)/ You shall have the book when I finish it.33（允诺） He shall be punished （威胁）/ Nothing shall stop me from doing it. (决心)

高中英语情态动词讲解

一、情态动词用法 1.情态动词的具体用法 A.能干can/could do; (经过努力)能干be able to (have the ability to do, be capable of doing) B.必须干/不得不干must / have to do; 不许干：mustn’t do C.(经允许)可以干may/ might do; 不可以干：may not do D.应该干should /ought to/ be to/ be supposed to do E.将要干will/would/shall do; (按法律，许诺，命令，威胁，第二三人称中) 将干shall do F.(某段具体时间)常干would do; (现在不做，过去常做) used to do G.宁愿做would rather do; 最好做had better do; 不妨做might as well do H.需要做need do ; 敢做dare do 2.情态动词表猜测 A.一定是must be ;一定已经干了某事must have done sth.; 一定不是can’t/couldn’t be ; 一定没干过某事can’t/couldn’t have done sth. B.可能（不）是may/might (not ) be; 可能已经（没）干某事may/might (not) have done sth. 3.情态动词与虚拟语气 A.本应该干某事（带有批评责备之意）should/ ought to have done sth.；本不该做了某事而做了shouldn’t /oughtn’t to have done sth B.本不必干某事needn’t have done sth. C.本可以干某事can/could have done sth. D.本（不会）干某事would (not) have done sth. E.真希望做过某事would like to have done sth. F.Should 在表建议的从句中： (a)It’s high time that sb. should do/did sth (b)It’s important sb. (should) do sth. (c)I suggest sb. (should ) do sth. 二、理解情态动词 Lucy is an outgoing lady. She can play many kinds of musical instruments. Actually, she could play the piano when she was 8 years old. Lucy also keeps taking exercise every day. She says that she has to do some sports because she must keep slim. “You shall get fat soon if you don’t take exercise every day.” She usually says to her friends. As for her, an elegant lady should try to keep fit. However, last week, she found that she might put on weight and she worried and decided to lose her weight. And these days she is always thinking that she may succeed soon if she tries all her best. However, she is always lack of time because she ought to take care of her children. One night after supper, she walked quickly in order to go dancing at the Tomorrow Park and she was late. On her way, she thought that the dancing must have