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情态动词

Answer key for Exercise 3:

1. The photo reminded her of her lover who had drowned at sea, and she wept. Although she had wiped all her tears away when she came out of the room, she could not hide the sadness on her face.

2. For many years this old man who lives in Mexico has been dreaming day and night about going back to his homeland.

3. The energetic poet could not find the origins of the words.

4. When we met again, he apologized to me for not having kept his word and asked me to forgive him.

5. According to experts’ prediction, he will win the best actor at the Golden Rooster Award this year.

6. It was obvious that he was trying to hold his breath.

7. If you haven’t got a night parking permission, you can’t park your car here.

8. The meeting that will take place next week is in memory of their ancestors’ arrival in the village one hundred years ago.

情态动词

定义：情态动词一种本身有一定的词义，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。情态动词后面加动词原形一起构成谓语

特点：情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加"not"。个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去，现在或将来。情态动词属非及物动词，故没有被动语态。

can和could的用法

1. 表示能力或客观可能性，还可以表示请求和允许。如：

Can you finish this work tonight?

Man can not live without air.

—Can I go now? —Yes, you can.

注意：①could也可表示请求，语气委婉，主要用于疑问句，不可用于肯定句，答语应用can（即could不能用于现在时态的简略答语中）。如：

Could I come to see you tomorrow?

Yes, you can. （否定答语可用No, I'm afraid not.）

②can表示能力时，还可用be able to代替。如：

I'll not be able to come this afternoon.

2. 表示惊异、怀疑、不相信的态度。（主要用在否定句、疑问句或惊叹句中）

Can this be true?

How can you be so careless!

This can not be done by him.

3. “can(could) + have + 过去分词”的疑问或否定形式表示

对过去发生的行为怀疑或不肯定。如：

He can not have been to that town.

Can he have got the book?

may和might的用法

1. 表示许可。

表示请求、允许时，might比may的语气更委婉一些，否定回答时(口语中常用) no , you can't . or yes, please 用mustn't 表示“不可以”、“禁止”、“阻止”之意(具有强烈禁止的意思)如：You may drive the car.

—Might I use your pen? —No, you mustn't.

用May I ... 征询对方许可在文体上比较正式，在口气上比较客气。在日常口语中，用Can I ... 征询对方意见在现代口语中更为常见。

2. 用于祈使句中表示祝愿。如：

May you succeed!

3. 表示推测、可能（疑问句不能用于此意）。

He may be very busy now.

4. “may(might) + have + 过去分词”表示对过去发生的行为的推测。

如：He may not have finished the work.

must和have to的用法

1. 表示必须、必要。（must表示主观多一些而have to则表示客观多一些）如：

You must come in time.

回答must引出的问句时，如果是否定的回答，不能用mustn't，而要用needn't或don't have to。

—Must we hand in our exercise books today?

—Yes, you must. (No, you don’t hav e to.)

2. “must be + 表语”的结构表示推测，它的否定或疑问式用c an。

This must be your pen.

3. “must + have + 过去分词”的结构常用在肯定句中，表示对过去发生的行为的推测。它的否定或疑问式用can。

He must have been to Shanghai.

4. have to的含义与must相似，两者往往可以互换使用，但h ave to有各种形式，随have的变化而定。must与have to有下列几点不同：

①must表示的是说话人的主观看法，而have to则往往强调客观需要。如：

The play is not interesting. I really must go now.

I had to work when I was your age.

②must一般只表现在，have则有更多的时态形式。

③二者的否定意义不大相同。如：

You mustn't go. 你可不要去。

You don't have to go. 你不必去。

④询问对方的意愿时应用must。如：

Must I clean all the room?

注意：have to也可做have got to。

5. 表示一种与说话人愿望相反、不耐烦的感情色彩，偏偏、非要。

Why must you always bother me ?

dare和need的用法

1. need表示“需要”或“必须”，作情态动词时，仅用于否定句或疑问句中，在肯定句中一般用must, have to, ought to,或should代替。如：

You needn’t come so early.

—Need I finish the work today?

—Yes, you must.

注意：needn't + 不定式的完成式“表示本来不必做某事而实际上做了某事”。如

You needn't have waited for me.

2. Dare作情态动词时，主要用于疑问句、否定句和条件状语从中，一般不用在肯定句中。如：

How dare you say I'm unfair.

He daren't speak English before such a crowd, dare h e?

3. Dare和need常用作实义动词，有时态、人称和数的变化，所不同的是，作实义动词时，在肯定句中，dare后面通常接带to的不定式，在否定和疑问句中，dare后面可接带to或不带to的不定式。如：

I dare to swim across this river.

He does not dare (to) answer.

Don't you dare (to) touch it!

I wondered he dare (to) say that.

He needs to finish it this evening.

shall和should的用法

一.Shall的用法：

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）

二.Should的用法：

1. Should表示劝告、建议、命令，其同义词是ought to；在疑问句中，通常用should代替ought to。如：

You should go to class right away.

Should I open the window?

Should的含义较多，用法较活，现介绍三种其特殊用法。请看下面的句子：

①I should think it would be better to try it again. 我倒是认为最好再试一试。

②You are mistaken, I should say. 依我看，你是搞错了。

③I should advise you not to do that. 我倒是劝你别这

样做。

④This is something I should have liked to ask you. 这是我本来想问你的。

从以上例句可以看出：情态动词should用于第一人称时可以表示说话人的一种谦逊、客气、委婉的语气。

Should还可以用在if引导的条件从句，表示一件事听起来可能性很小，但也不是完全没有可能。相当于“万一”的意思。从句谓语由should加动词原形构成，主句谓语却不一定用虚拟语气。如：

⑤Ask her to ring me up if you should see her. 你万一见到她，请让她给我打个电话。

⑥If you should change your mind, please let us kno w. 万一你改变主意，请通知我们。

⑦Should I (If I should) be free tomorrow I will come.万一我明天有时间，我就来。

此外，Why(or How) + should结构表示说话人对某事不能理解，感到意外、惊异等意思。意为“竟会”。如：

⑧Why should you be so late today? 你几天怎么来得这么晚？

⑨—Where is Betty living? —贝蒂住在哪里？

—How should I know? —我怎么会知道呢？

⑩I don't know why you should think that I did it. 我真不知道你凭什么认为这件事是我干的。

You can never imagine that a well- behaved gent le man should be so rude to a lady

2. “should + have + 过去分词”结构一般表示义务，表示应该做到而实际上没有做到，并包含一种埋怨、责备的口气。如：She should have finished it.

I should have helped her, but I never could.

You should have started earlier.

will和would的用法

1. 表示请求、建议等，would比will委婉客气。如：

Would you pass me the book?

2. 表示意志、愿望和决心。如：

I will never do that again.

The y asked if we would do that again.

The door won't open

3. 用“will be”和“will(would) + have + 过去分词”的结构表示推测，主要用于第二、三人称。前者表示对目前情况的推测，后者表示对已经完成的动作或事态的推测。如：

This will be the book you want.

He will have arrived by now.

The guests would have arrived by that time.

I thought you would have finished this by now.

4. Would可表示过去反复发生的动作或某种倾向。Would表过去习惯时比used to正式，并没有“现已无此习惯”的含义。如：

The wound wou ld not heal.

During the vacation he would visit me every week.

5. 表料想或猜想。如：

It would be about ten when he left home.

What would she be doing there?

I thought he would have told you all about it.

ought to的用法

1. Ought to表示应该。如：

You ought to take care of him.

2. 表示推测。注意与must表示推测时的区别：

He must be at home by now. （断定他已到家）

He ought to be home by now. （不十分肯定）

This is where the oil must be. （比较直率）

This is where the oil ought to be. （比较含蓄）

3. “ought to + have + 过去分词”表示过去应做某事而实际未做。如：

You ought to have asked him (but you didn't).

这时，ought to和should可以互相换用。

注意：在美国英语中，ought to用于否定句和疑问句时，to可以省略。如：

Ought you smoke so much?

You oughtn't smoke so much.

ought和should的区别：

1.ought语气略强。

2.should较常用。

3.ought在美国英语中用的很少，而should却相当常用。

4.ought属正式用语。

used to，had better，would rather的用法

1. Used to表示过去的习惯动作或状态，现在已不存在，在间接引语中，其形式可不变。如：

He told us he used to play football when he was you ng.

在疑问句、否定句、否定疑问句或者强调句中，可有两种形式：

疑问句

Did you use to go to the same school as your brothe r?

Used you to go to the same school as your brother?

否定句

I usedn't to go there.

I didn't use to go there.

Usedn't 亦可拼作usen't，但发音皆为['ju:snt]。

否定疑问句

Usen't you to be interested in the theatre?

Didn't you use to be interested in the theatre?

强调句

I certainly used to smoke, but it was a long time ago.

I certainly did use to smoke, but it was a long time ago.

其反义疑问句或简略回答中，也有两种形式：

She used to be very fat, didn't she? （口语+常用）/ us e(d)n't she? （正式+过时）

Did you use to play chess? Yes, I did.

Used you to get up early in the morning? Yes, I did. (Yes, I used to.)

2. Had better意为“最好”，后接不带to的不定式。如：

—We had better go now.

—Yes, we had (we'd better / we had better).

Hadn't we better stop now? (Had we better not stop now?)

I think I'd better be going. （用于进行时态，表“最好立即”）

You had better have done that. （用于完成时态，表未完成动作）

注：①had best与had better同意，但较少用。②You had better … 用于同辈或小辈，对长辈不可用。

3. Would rather意为“宁愿”，表选择，后接不带to的不定式。如：

I'd rather not say anything.

Would you rather work on a farm?

—Wouldn't you rather stay here?

—No, I would not. I'd rather go there.

由于would rather表选择，因而后可接than。如：

I would rather work on a farm than in a factory.

I would rather watch TV than go to see the film.

I would rather lose a dozen cherry trees than that yo

u should tell me one lie.

I'd rather you didn't talk about this to anyone. （句中

的'd rather不是情态动词，would在此是表愿望的实义动词）

can (could), may (might)的用法

can (could) 表示说话人能,可以,同意,准许,以及客观条件许可,coul d 为can 的过去式。

Can you pass me the books?

你能给我递一下书吗?

Could you help me, please?

请问,你能帮助我吗?

What can you do?

你能干点什么呢?

Can you be sure?

你有把握吗?

can 和could 只能用于现在式和过去式两种时态,将来时态用be able to 来表示。

He could help us at all.

他完全可以帮助我们。

With the teacher's help,I shall be able to speak Englis h correctly.

由于老师的帮助,我将能准确地讲英语。

may (might) 可以, 表示说话人同意,许可或请求对方许可。

You may take the book home.

你可以把书带回家去.

May I come in?

我可以进来吗?

May I use your dictionary?

我可以用你的词典吗?

You may put on more clothes.

你可以多穿点衣服.

He said he might lend us some money.

他说他可以借给我们一些钱。

may 否定式为may not, 缩写形式是mayn't.

might 是may 的过去式, 有两种用法, 一种表示过去式，一种表示虚拟语气, 使语气更加委婉, 客气或对可能性的怀疑。

He told me he might be here on time.

他说他能按时间来。

Might I borrow some money now.

我可以借点钱吗?

He might be alive.

他可能还活着。

must, need, ought to, dare (dared)用法

Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测。

must 用来指一般现在时和一般将来时, 过去式可用have to 的过去式代替。

I must finish my work today. 我今天必须完成我的工作。

You mustn't work all the time. 你不能老是工作。

Must I return the book tomorrow? 我必须明天还书吗?

After such a long walk, you must be tired. 走了这么长的路,你一定困了。

He must be the man I am looking for. 他一定是我要找的人。

He had to go because of somebody's calling him that day. 那天他要走是因为有人叫他。

must + have + 过去分词,表示现在对过去事物的推测。

He must have told my parents about it.

他一定把这件事情告诉我父母亲了。

He must have received my letter now.

他现在一定收到我的信了。

It's six o'clock already, we must have been late again.

已经六点钟了，我们一定又迟到了。

must 和have to 的区别: must 表示说话人的主观思想, ha ve to 表示客观需要。

You must do it now.

你必需现在就干。(说话人认为必须现在干)

I have to go now.

我得走了。(客观条件必须现在走)

need 需要多用在否定式或疑问句中.

Need I attend the meeting tomorrow?

我需要明天参加会议吗?

You need not hand in the paper this week.

这一周你不必交论文。

need 是一个情态动词, 他的用法完全和其他情态动词一样, 但need 还可当作实义动词使用, 这时need 就象其他动词一样,有第三人称,单复数, 后面加带to 的动词等特性。

I need a bike to go to school.

我上学需要一辆自行车。

Do you need a dictionary?

你需要词典吗?

She needs a necklace.

她需要一条项链。

needn't + have + 过去分词表示过去做了没必要做的事情。

You needn't have taken it seriously.

这件事情你不必太认真。

dare 敢多用在否定或疑问句中。

The little girl dare not speak in public.

小女孩不敢在公众面前说话。

Dare you catch the little cat?

你敢抓小猫吗?

dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等。

Do you dare to walk in the dark?

你敢黑夜走路吗？

He doesn't dare to tell the teacher what happened tha t day.

他不敢告诉老师那天发生的事。

have to , ought ，will ，Shall , should . ought 应当,应该后面跟带有to 的动词不定式。

You ought to read these books if you want to know how to repair the motorcar.

如果你想知道如何修理汽车,你应该读这些书。

You ought to bring the child here.

你应该把孩子带来。

ought + to have done 句型。指过去动作,表示一件事情该做而未做。

You ought to have been here yesterday.

你昨天就应该来。

ought not to have done 句型。表示一件不该做的事情却做了。

You ought not to have taken the book out of the rea ding-room.

你不应该把书带出阅览室。

will (would)决心,愿望。would 为will 的过去式,

可用于各人称。

I'll do my best to catch up with them.

我要尽全力赶上他们。

I'll never do it again, that's the last time.

我再不会做那件事情了,这是最后一次。

He said he would help me.

他说他会帮助我。

will, would用于疑问句表示说话人向对方提出请求或询问,用would 比will 更婉转,客气。

It's hot. Will you open the windows?

天气太热了,你能打开窗户吗?

Will you help me to work it out?

你能帮我解这道题吗?

Would you like some coffee？

给你来点咖啡怎样？

Shall, should表示命令,警告,允诺,征求,劝告,建议惊奇。

You should hand in the exercise book.

你应该交作业本了。

This should be no problem.

这应该没问题。

Shall we go now.

我们现在可以走了吗?

Why should I meet him？

为什么我要见他?

have to,不得不,必须,表示客观条件只能如此, 而must 则表示主观思想必须。

I have to go now.

我现在得走了。

I have to cook for my child.

我得给孩子做饭。

You must be here on time next time.

你下次一定要按时来。

We must go to get the timetable ourselves.

我们一定要自己去拿时刻表。

英语情态动词用法总结(完整)

英语情态动词用法总结(完整) 一、单项选择情态动词 1．--- 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。 2．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。 3．He is a bad-tempered fellow, but he ________ be quite charming when he wishes. A．shall B．should C．can D．must 【答案】C 【解析】【详解】考查情态动词辨析。句意：他是个脾气不好的家伙，但当他希望自己有魅力的时候，他可

情态动词表猜测的用法

情态动词表猜测的用法情态动词must,can,could,should,may,might 等可以用在句中表示猜测。 1.“情态动词+动词原形”表示对现在或将来情况的猜测 I don’t know where she is. She may be in Wuhan. 2.“情态动词+进行式”表示对现在或将来正在进行的情况的猜测 At this moment, our teacher must be correcting our exam papers. 3.“情态动词+完成式”表示对过去情况的猜测 You must have been caught in the rain on your way home yesterday. 4.“情态动词+完成进行式”表示对过去正在进行的情况的猜测 Your mother must have been looking for you. 5.推测的否定形式用can’t/couldn’t，may not/might not表示

Mike can’t have found his car, for he came to work by bus this morning. 6.句子中含有表示猜测的情态动词时，其反意疑问句的构成不能再用原句中的情态动词，而应根据原句在去掉情态动词的情况下的主谓关系来确定其反问形式。 ①The man in the white clothes must be a doctor, isn’t he? ②She must have seen the film before, hasn’t she? ③He must have an uncle abroad, doesn’t he? ④You must have met Uncle Wang in the shop yesterday, didn’t you? 7.在表示“猜测”方面的区别情态动词must,can,could,should,may,might 都可以用于表示“猜测”（注意：could, might 表示推测时不表示时态, 其推测的程度不如can, may）。实际上，“猜测”与“可能性”在逻辑上是有必然联系的。如果认为没有某种可能性，人们就不会作出某些猜测。因此，请注意六个情态动词之间的区别与它们各

常见的情态动词有

①常见的情态动词有：can (could) ,may (might), must ,shall (should), will (would), dare (dared) , need等,另外,have to、had better也当作情态动词使用。情态动词后面必须加动词的原形。 ②can表示体力、脑力方面的能力或客观的可能性。口语中, 在询问或说明一件事可不可以做时,常用“can”代替“may”。情态动词“can”的过去式是“could”,否定式是“cannot”通常缩写成“can’t”,“could”的否定式是“could not”,通常缩写成“couldn’t”。如：Can I help you?(要帮忙吗？) / He can swim.(他会游泳) / That can’t be Mr Li.(那不可能是李先生) ③may表示允许、请求或可能性,用may提问时,肯定回答一般用Certainly或Yes,you may.;否定回答一般用can’t或mustn’t. 如：May I ask you a question?—Certainly.(可以问你一个问题吗？当然可以) / You may go now.(现在你可以走了) / It may be in your pocket.(它可能在你的衣袋里) ④must表示“必须”、“一定”的意思。表示“必须”时否定形式是mustn’t；表示“一定”时,否定形式是“can’t”如：We must be very careful when we cross the road.(我们过马路时一定要非常小心)/ It must be Jack.(那准是杰克)/ I haven’t seen Kate today. She can’t be here.(我今天没有看到过凯特,她不可能在这里) [注意]用must(必须)进行提问时,肯定回答用must,否定回答用needn’t；用must(一定)进行提问时,肯定回答仍用must,但是否定回答用can’t. 如：Must we clean the room before we leave? –Yes,you must.或No,you needn’t.(我们走之前必须要打扫房间吗？是的,必须打扫。/ 不,不需要。) / Must she be in the romm? –Yes,she must.或No,she c an’t.(她一定在房间里吗？是的,一定。/ 不,不可能在。) ⑤“have to”表示“不得不”、“必须”。We’ll have to leave now for it is very late at night. have to的疑问形式是：助动词+…+have to,否定形式是：助动词+not+have to或者用needn’t.如：Do you have to stay until 8 o’clock?(你得呆到8点钟吗？)/ You don’t have to do so.(=You nee dn’t do so.)(你不用这么做) ⑥shall在问句中,可表示征求对方意见,与第一人称连用；在陈述句的第二、三人称的主语后或表示“命令”、“警告”、“允许”等。如：Shall we go to the zoo this weekend?(我们这个周末去动物园好吗？) / He shall bring his own book next time.(他下次必须带自己的书来) ⑦should可表示“劝告”、“建议”、“惊奇”等意思。 We should speak to old people politely.(我们应该礼貌地对老人讲话) ⑧will表示“意愿”、“决心”等意思,一般与第二人称连用。如：Will you please close the door for me?(请你替我把门关上好吗？) / I will teach you a lesson.(我要教训你一顿) ⑨would表示过去的“意愿”、“决心”等。 He would sit near the fire every time he returned home.(每次他回到家中总要坐在火炉边) would也可以表示现在的情况,表达说话人向对方提出的要求,语气比“will”婉转、客气。在日常会话中,“我想要…”通常用“I would like to”或“I should(I’d) like to”来表示。如：Would you like to have a rest at the moment?(你现在想要休息一下吗？) would还可以表示过去经常发生的事情。如：Every year parents would tell their children about the boy who would save his people.(每一年父母们总是向孩子们讲述这个将会拯救他的人民的男孩的事) ⑩need表示“需要”,用于疑问句或否定句。“need”作实义动词时,在肯定、否定、疑问句中都可以用。如： He needn’t do it in such a hurry.(他不需要如此匆忙地做这件事) / He needs some help.(他需要一些帮助) / He doesn’t need to bring his football socks then.(那么他就无须带上足球袜了)

高考情态动词(完整版)

高考情态动词(完整版) 一、单项选择情态动词 1．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。 2．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. 3．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】

情态动词的意义和用法

一、考点回顾 1、情态动词的基本用法 (1)can、be able to 和could ①can和be able to都表示能力，意思上没多大区别。 can只有现在和过去时，而be able to则有更多的形式。但当成功地完成某一具体动作时，通常不用could而用was/were able to来表示。这时was/were able to 相当于managed to，表示经过一番努力，终于能够完成某事。 ②can和could can和could都可以表示能力、技能、许可、建议或请求和可能性。但比较委婉客气地提出问题或陈述看法，一般用could，回答时则用can。 (2)may/might ①may/might表示可能，但may比might可能性大。 ②may/might表示“允许”，may用于现在时或将来时，might常用在间接引语中表过去时，但might也可用于现在时间，表示比较委婉的语气，回答用may。如： ③may / might 表示建议或请求，但might比may 更客气，意思更肯定而无过去时态的含义用may表示推测一般不用于疑问句，在疑问句中通常用can来代替。 May I ... 问句常见的肯定回答和否定回答。肯定回答 Yes, please.Certainly.Yes, of course.Sure.Go ahead, please. 否定回答 No, you can't. （最常见）No, you mustn't. （具有强烈禁止的意思） Please don't. You'd better not.I don't think you can.I'm sorry it's not allowed. （3）must ①must表示必须，应该，没有时态变化。 ②must表示肯定的推测。如： ③mustn’t 表示禁止做某事。如：（4）have to have to 表示“必须、不得不”，是由于某种外界（客观）原因而“必须”，“不得不”做某事，也可表示经常的或习惯性的事“必须”做。have to的否定形式表示不必。have to可用于多种时态中。如：（5）should / ought to ①should和ought to表示应当、应该，前者比后者语气轻。 ②should / ought to 表推测。 ③should / ought to的否定形式表示禁止之意。如： ④should可表示陈述意见，推出建议或请求；而ought to可以表示劝告之意。如：（6）will / would ①will 用于各种人称表示“意志”、“意愿”或“决心”等，否定式won’t + 动词。如： ②will用于疑问句中，常用在第二称时表示说话人向对方提出“请求”或“询问”如： ③will 表示习惯性的动作，有“总是”、“惯于”的含义。如： ④would 表示客气的请求、建议或意愿。如： ⑤would 表示过去反复发生的动作,总是会。（7）need need 作“必要”讲，既可作情态动词，也可作实义动词。作实义动词时后面的动词不定式要

人教版英语英语情态动词复习含答案解析

人教版英语英语情态动词复习含答案解析一、初中英语情态动词 1．—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。 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．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。 4．— 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。

新初中英语语法知识—情态动词的知识点(2)

一、选择题 1．—Doesn’t Frank like staying at home and looking after his little sister? —_______, but he ________ because both of his parents work. A．Yes; has to B．No; has to C．Yes; doesn’t have to D．No; doesn’t have to 2．You run with the train when i t is coming. It’s dangerous. A．may not B．mustn’t C．needn’t 3．-Listen! A wolf is crying! -It _______ be a wolf, because a wolf never comes out at this time. A．mustn’t B．needn’t C．can’t D．don’t 4．You have finished most of the work, so you ____ start working so early tomorrow. You may come at 9 :00. A．can't B．mustn't C．needn't D．couldn't 5．The designer has tried every possible way to make the robot light, so you _____ worry about its weight. A．must B．may C．can’t D．needn’t 6．---Mum, must I finish my homework today? ---No, you . Tomorrow is Sunday and you may have a rest today. A．shouldn’t B．mustn’t C．can’t D．don’t have to 7．A: Is Jim coming by train? B: I’m not sure. He _______ drive his car. A．must B．may C．need D．should 8．You look quite tired. You'd better ________ a good rest. A．stop to have B．stop having C．to stop to have D．to stop having 9．—I can't stop smoking, doctor. —For your health, I'm afraid you ________. A．must B．can C．may D．need 10．—I’d like ________ Guo Jingming’s Tiny Times. —You had better________ his books. The stories he tells are far from real life. A．buying, don’t read B．to buy, not read C．buying, not read D．to buy, not to read 11．—Tom, we’re going shopping at eight, right? —Yeah, but I ______ be a little late, so don’t wait for me. A．may B．should C．mustn’t 12．Even the top student can't work out this problem, so it________ be too difficult. A．must B．may C．can D．need 13．The milk tastes bad. You’d better_______. A．throw it away B．to throw it away

情态动词、各种时态

六年级英语专项练习：情态动词一、情态动词的定义：情态动词有词义，但它不能单独作谓语，它必须和其他动词一起构成谓语。情态动词没有人称和数的变化；它的后面必须跟动词原形。二、情态动词的种类：三、情态动词的用法及主要句型： 1、Can I help you? ——Yes, please. / No, thanks. 2、Can + 主语+ 动词原形? Yes, ～can. No, ～can’t. 3、Can I borrow your book?----Yes,of course. 4、Can I write on the book? ------No, you can’t\mustn’t. 5、Could \Can you help me?---- Yes,of course.\Certainly.\ Sure. 6、Could \Can you tell me the way to the Zoo? 7、May I come in ?----- Come in, please.

8、May I sit here?----- Yes, please.\Sorry, please don’t. 9、May I have some Coke?---- Yes, of course. 10、May/ Could / Can I speak to Tom? -----Speaking. Who’s calling? 11、should 、shouldn’t 表示劝告： 1) He should get up early. 2) She shouldn’t play computer game too much. 12、Should +主语+动词原形? Yes, ～should.\ No, ～shouldn’t. 13、表示建议“你愿意…吗” Would you like to go shopping with me? -----Yes, I’d love to. /I’d love to. But I’m busy now. 14、就餐用语Would you like something to eat\drink? ----Yes, I’d like… 15、shall用于第一人称(I, we), 可以表示“将”和表示建议“……好吗?” 1) Where shall we have dinner? 2) Shall we go fishing? -----All right. \OK. \Good idea. 16、Must + 主语+ 动词原形? ---Yes,～must.\No, ～needn’t. 四、相关练习： (一) 用适当的情态动词填空。 1. Must I borrow the book with my ID card? No, you ________. 2. ________ I use your car? Yes, you ________. 3. ________ I go home now? No, you _________ stay here. 4.My mother is ill. I _________ stay at home and look after her.

【英语】情态动词的归纳

【英语】情态动词的归纳一、单项选择情态动词 1．—_______ you disturb 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。 2．It ________ be the postman at the door. It's only six o'clock. A．mustn't B．can't C．won't D．needn't 【答案】B 【解析】 D[考查虚拟语气。句意：不可能是邮递员在门口，才六点钟呢。mustn't 禁止，不允许；can't 不可能；won't 不愿意，就是不，偏不；needn't 不需要。] 3．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。 4．--- 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。

初中情态动词用法总结

专项：情态动词一考点：情态动词的用法和辨析，情态动词表示推测和可能，由情态动词引导的一般疑问句的回答。二类型：1 只是情态动词：can, could, may, might, must 2 可做情态动词，可做实义动词：need, dare 3 可做情态动词，可做助动词：will, would, shall, should 4 特殊：have to, ought to, used to 三特征：1 有一定的词义，但不能单独作谓语，必须与行为动词和系动词连用构成谓语。 2 无人称和数的变化。（have to 除外） Eg: He has to stay here. 3 后接动词原形。 4 具有助动词作用，可构成否定，疑问或简短回答。四用法： 1. can ①表示能力，“能，会”。Eg : Can you play basketball? ②表示怀疑，猜测，常用于否定句或疑问句。 Eg :Li hua can’t be in the classroom. ③表示请求，允许，多用于口语，译“可以”= may. Eg: you can go now. ④can 开头的疑问句，肯定句，否定句用can或can’t. 2.could①can 的过去式，表示过去的能力。 Eg :I could swim when I was seven years old. ②could 开头的疑问句，肯定和否定回答用could, couldn’t如果could 表示现在的委婉，用can 回答。 Eg: Could I have a drink? Yes, you can. 3.may①表示推测，“可能，也许”，用于肯定句。 Eg: He may come tomorrow. ②表示请求，“许可,可以”。Eg: May I borrow your book? 注：表示请求，许可时，主语为第一人称的一般疑问句，否定回

情态动词二

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