情态动词复习经典句子背诵

情态动词复习要点一、can/could和may/might表示“许可”1. 两者都可以表示许可，常可互换。

如：Can(May)I borrow your knife?我可以借你的刀子吗？The teacher says we can(may)leave early tomorrow. 老师说我们明天可以早一点走。

2.表示请求许可时，用could/might 比用can/ might更委婉。

但肯定回答时要用can或may。

---Could(Might)I stay in your office? 我可以呆在你的办公室吗？--- Of course, you can(may). 当然可以。

3. 表示“禁止，不允许”时用must not(mustn’t)。

You mustn’t climb the tree. It’s dangerous. 你不能爬树，那危险。

二、can, could和be able to表示“能力”1. 在现在时中can, be able to可互换。

如：I can(am able to) write some English words now. 我现在会写一些英语单词了。

2. be able to还可用于将来时和完成时。

如：He will be able to see you tomorrow.他明天去拜访你。

I have been able to go to work for a week. 我已经上班一周了。

3. 在过去时中，could表示泛指的能力，was/were able to表示过去特定的某一次能力。

如：She could swim when she was ten. 她十岁时就会游泳了。

Only thirty people in the building were able to escape after the fire broke out. 大火爆发后只有三十人从大楼里逃了出来。

高中情态动词的用法考点归纳一．can和could（1）could用来表示请求时，语气委婉，主要用于疑问句，不能用于肯定句，答语应用can（即：could不能用于现在时态的简略答语中）。

如：——Could I use your dictionary?•——Y es, you can.(否定回答可用：No, I’m afraid not.)回答由could引起的问句，仍用can 而不用could。

-Could you wait a few more minutes?-Y es, I can(2)can和be able to辨析can(could)和be able to都可以表示能力，意思上没有区别。

但can只有现在式和过去式，而be able to则有更多的形式。

如：I’ve always wanted to able to speak fluent English.Those bags look really heavy, are you sure you’ll be able to carry them on your own?但是，表示在过去某时的某一场合经过一番努力，终于做成了某事，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 do或succeed in doing。

如：After the accident it was a long time before she was able to walk again.The fire was very big, but most people were able to escape from the building.(3) 惯用形式“cannot …too…”表示“无论怎么……也不（过分）”。

如：Y ou cannot be too careful.你越小心越好。

初中情态动词知识点归纳情态动词一．专题知识梳理知识点1：情态动词特征1）情态动词（modal verb）本身有词义，表示说话人的语气或情态。

2）情态动词没有人称，数的变化，后跟动词原型。

知识点2：常见情态动词用法1）can（1）.表示能力、许可、可能性。

表示能力时一般译为“能、会”，即有种能力，尤其是生来具备的能力，此时may和must均不可代替它。

如：She can swim fast, but I can’t . 她能游得很快，但我不能。

I can see with my eyes.我用眼睛看。

（2）.表示许可，常在口语中。

如：You can use my dictionary. 你可以用我的字典。

2）could（1）.can的过去式，意为“能、会”，表示过去的能力。

如：He could write poems when he was 10. 他十岁时就会写诗。

（2）. could在疑问句中，表示委婉的语气，此时could没有过去式的意思。

如:Could you do me a favor?你能帮我个忙吗？—Could I use your pen? 我能用一下你的钢笔吗?—Yes, you can.可以。

（注意回答）3）must(1).must表示主观看法，意为“必须、一定”。

Must I hand in my homework right now? 我必须现在交作业吗？(2)其否定形式mustn’t表示“一定不要” “千万别” “禁止,不许”如：You mustn’t play with fire. 你不许玩火。

You mustn’t be late.你一定不要迟到。

(3)对must引导的疑问句，肯定回答为must，否定回答为needn’t 或don’t have to .如：—Must I finish my homework?我现在必须完成作业吗？—No, you needn’t.不，你不必。

概念引入 情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没有人称和数的变化，情态动词后必须跟动词原形。

欣赏含有情态动词的名言： A man can do no more than he can. 凡事量力而行。

A good marksman may miss. 好射手也有失手的时候。

Life is fine and enjoyable，yet you must learn how to enjoy fine life. 生活是美好的，但要学会如何享受美好的生活。

The brighter you are，the more you have to learn. 越聪明的人，越需要学习。

Books and friends should be few but good. 书与友，贵精不贵多。

用法讲解1. can的用法： 1）表示能力、许可、可能性。

表示能力时一般译为“能、会”，即具有种能力，尤其是生来具备的能力。

She can swim fast, but I can’t. 她能游得很快，但我不能。

I can see with my eyes. 我用眼睛看。

2）表示许可，常在口语中。

You can use my dictionary. 你可以用我的字典。

3）表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t 意为“不可能”。

Can the news be true? 这个消息会是真的吗？ —Can it be our teacher? 那个人有可能是我们老师吗？ —No, it can’t be our teacher. He is on a visit to the Great Wall. 不可能。

咱们老师正在游览长城呢。

2. could的用法： 1）could是can的过去式，意为“能、 会”，表示过去的能力。

He could write poems when he was 10. 他十岁时就会写诗。

情态动词的用法归纳及顺口溜
情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to 等。

情态动词无人称和数的变化，
不能单独使用。

1 英语情态动词用法顺口溜情态动词要记牢;动词原形来跟梢。

不管人称单复数;现在过去乐逍遥。

can 表能力和许可;也许可能may 来表;
必须一定must;should 应该来报到。

英语情态动词用法顺口溜
回答不须needn’t;mustn’t 为不必要。

否定只要接not;疑问赶紧往前跑。

1 情态动词的基本用法有哪些一、can, could
1) 表示能力（体力、知识、技能）。

Can you lift this heavy box?（体力）
Mary can speak three languages.（知识）
Can you skate?（技能）
此时可用be able to 代替。

Can 只有一般现在时和一般过去式；而be able to 则有更多的时态。

I’ll not be able to come this afternoon.
当表示“经过努力才得以做成功某事”时应用be able to，不能用Can。

如：He was able to go to the party yesterday evening in spite of the heavy rain.。

情态动词Modal verbs情态动词表示说话人对某一动作或状态的态度，认为可能、应当、必要等等，情态动词没有人称和数的变化。

1．can 和could (could 是can 的过去式。

)(1) . 表示“能力”、“许可”、“可能性”(用于疑问句或否定句中) 。

Can she drive a bus? Can it be trueThe teacher can't be in the office.?(2). could 可以用来比较委婉地提出问题。

Could you help me with my English ?(3) can 和be able to 意思上没有区别.was / were able to do=succeeded in doing sth. 表示过去成功做成某事.A fire happened to the hotel last night but luckily everyone was able to get out.2．may 和might (might 是may 的过去式。

)(1) 表示允许或征询对方许可，有可以"的意思。

否定式may not,也可用must not = mustn '但常用mustn't 来表示“不可以”、“禁止”、“不允许”等意思。

May I watch TV after supper? Yes, you may.No, you may not (mustn't) .在请求对方许可时，Might I…更礼貌一些。

Might I have your name ?(2) 表示可能性, “或许”、“可能”(用在肯定句中)。

Might 表示语气更加不肯定。

He may / might come today ．3.must 和have to(1) 表示“必须”、“应该”。

否定式must not (mustn '表示不许可” 不准” 禁止"等。

情态动词必考点归纳1.表请求和允许：can/may;could/might (could和might)也可表委婉客气，此时答语应用原形----Could I use your computer ?----Yes,you can.(I’m afraid not)若答No(Sorry),you can’t.则不婉转。

2. 表推测:肯定must/may/might; 疑问can/could ;否定can’t（不可能）may not（可能不）Children can be very tiring.3.反问句：He may know the play,doesn’t he?You must have studied English before,didn’t you?You can’t have been caught in the rain,were you?4.could/ be able tocould表具有某能力were/was able to不仅有某能力而且已成功做成某事，相当于managed to do 或succeeded in doingThe fire spread through the hotel very quickly but everyone was able to(managed to)escape/succeeded in escaping.The new student could follow the teacher well.5. may(might) as well 还是...好；不妨 You might as well tell me the truth.6. must/have to:We must do everything step by step./We have to consider the whole thing.注意：mustn’t（禁止/不许可）决不能，一定不能；don’t have to不必；must偏要（做令人不快的事）Must you shout so loudly?7.shall1)征求对方意见或请示对方，用于一、三人称When shall my father be able to leave hospital?Shall we sit here?2)命令、警告、允诺、威胁及决心 You shall go with me.(命令)/You shall have the book when I finish it.(允诺)/You shall be punished.(威胁)/You’ll be sorry for what you did.（威胁）/Nothing shall stop me from doing it.(决心)8. should 1)表劝告或建议，“应该”，“按理应当”They should be there by now,I think./Mr. Black should /ought to get home by now.2)表“万一” Ask Tom to ring me up if you should see him./Should I be free tomorrow,I’ll come.3)表不解或惊异或“竟然”之意Why should you invite him./How should you be so careless?/It seems so unfair that this should happen to me.9.will/would1)表意志/意愿：If you will listen to me,I’ll give you some advice./I promised that I would offer you some help.2)表习惯性或客观规律:“总是”“惯于”Fish will die without water./Every evening,she would sit by the window,deep in thought.3)表“能”或“行”The machine won’t work./The door won’t open.4)表预料或猜测:It would be about ten when he left.10.would do/used to do:前者不可用来表状态,如;There would be/used to be a hospital there.(F)We used to swim in that river when young.(现已不)/We would swim in that river when young.(现在不一定) 11.dare/need:need—need to do—don’t need to do—Do...need to do...?----行为need do—needn’t do---Need...do?否定、疑问—--情态We need to start early./You don’t need to do it yourself./you needn’t do it yourself./(Why)Need he go today?注意：need/want/require doing =...to be doneDare:作情态动词时用于否定，疑问（及表疑问的从句）和条件句dare to do---dare not to do----Do...dare to do...?----行为;dare not do—Dare...do...?---情态Few Ss dare to challenge the rules./Nobody dares to challenge the rules./Anybody dares to challenge the rules?Dare she go out alone at nigh t?/She dare not say what she thinks./I’ll support you if you dare do it.112.must have done—He must have known the secret./must be doing—He must be working in the garden. can’t/couldn’t have done—He can’t/couldn’t have finished it in so short a time.ca n’t be doing 不可能在做... He can’t be working in the garden.can’t/couldn’t have been doing不可能一直在做...They can’t /couldn’t have been working in the garden.could have done本来能够而没做We could have finished the project on time.should (not)/ought(not)to have done:We ought to/should have given you more help,but we were too busy.might/may (not)have done: He may/might (not) have knowns the secret.needn’t have done: She need not have come yesterday./She didn’t need to come yesterday.一、用合适的情态动词或“情态动词＋所给词的适当形式”填空1．I should have been there, but I ________ find the time.2．Helen ________ go on the trip with us, but she isn't quite sure yet.3．Tom, you ________ not leave all your clothes on the floor like this!4．You can't imagine that a well-behaved gentleman ________ be so rude to a lady.5．It has been announced that candidates ________ remain in their seats until all the papers have been collected.6．—Lucy doesn't mind lending you her dictionary.—She ________.I've already borrowed one.7．John, look at the time.________ you play the piano at such a late hour?8．—________ this book be yours?—No, it ________ be mine.It ________ be Tom's.He is looking for his book.9．As a girl, she ________ get up at six every day.10. ________ he to clean the classroom after school?11．You ________ be tired after the long trip, aren't you?12．—What's the name?—Khulaifi.________ I spell that for you?13．You ____________ (see) the film, haven't you?14．You ____________ (talk) on the phone at that time, for I couldn't get through.15．They ____________ (miss) the plane, or perhaps they have been prevented from coming for some reasons.16．____________ you pass the College Entrance Examination!17．He had known the matter before you told him, so you ____________ (not tell) it to him.18．I did not call to make any airline reservation but I ____________.19．The light is out.They ____________ (not work) now.20．—My cat is really fat.—You ____________ (not give) her so much food.21．____________ such a woman be loved by so good a man?22．You ____________ smoke here.The sign says “No smoking”．23．You are in uniform.You must be a policeman, ____________ you?24．No matter how heavy the rain was, she ____________ give up attending his lecture.25．It ____________ sound funny, but it is true.26．He announced that he ____________ walk home.And soon he disappeared.27．You naughty boy! You ____________ get what you deserve.28．At that time they thought the story ____________ be true.29．You ____________ get the book as soon as I have read it.30．There's a lot of noise from the bedroom.It ____________ John.He ____________ (dance)．T ell him to stop.1.couldn't2.may3.must/should4.should 5．shall 6.needn't7.Must8.Can; can't; must 9．would10.Ought11.must12.Shall 13．must have seen14.must be talking 15．might have missed16.May17．needn't have told18.should have19．can't be working20.shouldn't have given21．Can22.mustn't23.aren't24.would not25.may/might26.would27.shall28.might29．shall30.must be; must be dancing2。

情态动词口诀顺口溜以下是一个关于情态动词的口诀顺口溜：情态动词很重要，用法需要记心上。

Can 表能力或请求，Could 过去也能用。

May 表许可或可能，Might 委婉语气柔。

Must 必须或肯定，Shall 一三人称建议。

Should 应该或竟然，Will 将来或意愿。

Would 过去将来时，虚拟语气也常用。

记清意思和用法，情态动词不发愁。

以下是一个关于情态动词的口诀顺口溜，希望对你有所帮助：情态动词有 can、could、may、might、must、shall、should、will、would，用法需记牢。

can 表能力，could 表过去，may 表许可，might 表委婉。

must 表必须，shall 用于一三人称表建议，should 表应该，will 表将来，would 表过去将来。

记清意思和用法，情态动词不再难。

除了上面提到的用法，情态动词还有以下几种常见用法：1. 表示推测：情态动词可以表示对过去、现在或将来的推测。

例如：- He must be at home.（他一定在家。

）- She may come tomorrow.（她可能明天来。

）- They could have finished the work.（他们可能已经完成了工作。

）2. 表示虚拟语气：在虚拟语气中，情态动词表示与事实相反的情况。

例如：- If I were you, I would study harder.（如果我是你，我会更努力学习。

）- He could have passed the exam if he had studied harder.（如果他学习更努力，他本来可以通过考试的。

）3. 表示习惯或倾向：情态动词可以表示习惯或倾向。

例如：- He often goes to the gym.（他经常去健身房。

）- She will sit in the front row.（她会坐在前排。

中考考点_情态动词知识点汇总(全)（word）一、初中英语情态动词1． Look! The traffic light has turned red. We _____ stop our car.A. canB. can'tC. mustD. mustn't【答案】 C【解析】【分析】句意:看交通灯成了红灯。

我们必须停车。

turned灯成了红灯;stop sth停止某物A. can能; B. can't不能; C. must必须; D.mustn't千万别，一定不要。

根据常识可知红灯停，这是必须的，故选C2．—Where is Monica? I can't find her anywhere.—She be in the library. She loves reading books when she is free.A. mustB. needC. 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．Teenagers allowed to drive .A. should not beB. should be notC. not should be【答案】A【解析】【分析】句意：年轻人不应该被允许驾车。

Should是情态动词，其否定表达一般在在后面加副词not，故选A。

【点评】此题考查含有情态动词的被动语态的否定形式。

平时注意记忆情态动词的记忆和用法。

4．—Who it be that is knocking at the door?—It be father, but I'm not sure.A. call; mustB. can; mayC. must; canD. 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。

情态动词句子以下是十条情态动词句子及例子：1. 我应该多去外面走走，看看不一样的世界。

就像鸟儿应该在天空翱翔一样，我也不能总宅在家里呀！例子：你看人家小王，经常出去旅游，见识可广了，我咋就不能像他那样呢？我应该多出去走走！2. 你可别总是熬夜呀，身体会受不了的。

这就好比车子没了油，还能跑吗？例子：“哎呀，我今晚又想熬夜追剧。

”“不行！你可别总是熬夜呀！”3. 他必须得努力工作，才能实现自己的梦想。

就像登山者必须一步一步往上爬才能登顶一样。

例子：“我觉得工作差不多就行了。

”“那怎么行，他必须得努力工作呀！”4. 我们能够一起度过这么多美好时光，真的太幸运了。

好比在茫茫人海中找到了彼此一样。

例子：“想想我们一起经历的那些，真的好开心啊。

”“是啊，我们能够一起度过这么多美好时光，真的太幸运了！”5. 她也许会给我们带来惊喜呢，就像春天也许会突然绽放很多美丽的花朵一样。

例子：“这次活动她会参加吗？”“不知道呀，她也许会给我们带来惊喜呢！”6. 你应该对自己好一点呀，别总是委屈自己。

就像花儿需要阳光雨水一样，你也需要关爱自己啊！例子：“我又舍不得买那个贵的东西。

”“哎呀，你应该对自己好一点呀！”7. 他们肯定能完成这个任务，就像战士肯定能攻克堡垒一样。

例子：“这个任务好难啊。

”“放心吧，他们肯定能完成这个任务！”8. 我怎么能忘记你的生日呢，那可是个重要的日子呀！好比我怎么能忘记回家的路一样。

例子：“你不会忘了我的生日吧？”“我怎么能忘记你的生日呢！”9. 你得赶紧行动起来呀，时间可不等人。

就像火车不会等你一样！例子：“我再等等吧。

”“等什么等，你得赶紧行动起来呀！”10. 他或许不应该那么冲动，就像船不应该在风浪中盲目行驶一样。

例子：“他当时太冲动了。

”“是啊，他或许不应该那么冲动。

”我的观点结论：情态动词让我们的表达更加丰富和生动，在生活中要恰当运用情态动词来准确传达我们的情感和想法呀！。

主要动词和情态动词的句子
嘿，咱就说啊，动词那可是句子的灵魂啊！就好比人要是没了灵魂，不就成了行尸走肉嘛！你想想看，“我跑”，这个“跑”就是主要动词，它让你一下子就知道我在干啥。

再比如，“他可能会来”，这里的“可能”就是情态动词啦，它给事情增加了一种可能性。

比如说，咱一起出去玩，我喊“咱快跑，要赶不上车啦！”这里的“跑”就是主要动词，让你知道得赶紧行动起来。

然后你说“我应该能跑快点”，“应该”就是情态动词，表明你觉得自己有那个能力。

主要动词就像是战场上的将军，直接指挥着行动，决定着事情的走向。

情态动词呢，则像军师，给行动出谋划策，提供各种可能性和推测。

咱再想想啊，“她喜欢唱歌”，“喜欢”就是主要动词，它表明了她的
爱好。

要是说“她也许喜欢唱歌”，“也许”这个情态动词就让这事儿变得不那么确定了。

在生活中，我们经常会用到这些动词。

比如，我问你“你能帮我个
忙吗？”这里的“能”就是情态动词呀。

你要是回答“我会尽力的”，“会”
也是情态动词呢。

主要动词和情态动词，它们相互配合，让我们的表达更加丰富、准确。

它们就像一对好搭档，共同构建起精彩的语言世界。

没有它们，
我们的话语该多无趣啊！所以说，我们可得好好掌握它们，让我们的
语言变得更加生动、有趣呀！这就是我的观点，主要动词和情态动词真的超级重要！。

2021 高三英语语法篇（NO.9）情态动词背诵篇Focus 1: can/could1.表“能力”能够1)While I can’t match you in strength but I can match you in courage.2)(12全国)I’m going to Europe on vacation together with John if I can find themoney.3)(11四川)The police still haven’t found the lost child, but they’re doing all theycan.4)(11湖南)No one can be compared with matchYao Ming in playing basketball.在打篮球方面没人能比得上姚明2.表“可以”1)(09北京)One of the few things you can say about English people with certaintyis that they talk a lot about the weather.3.表“客观可能性”1)Anybody can make mistakes.任何人都可能犯错。

2)3)4)固定句型can’t … too/enough 再…也不为过1) (12陕西)I can’t thank you too much for all your help to my son while we wereaway from home.2) I can’t thank you enough. 我无论怎么都不为过。

3) You can’t be too careful when you cross the road.can’t /couldn’t +比较级相当于最高级1)I can’t agree more2)It couldn’t be better.3)(11浙江)——How’s your new babysitter?——We can’t ask for a better one. All our kids love her so much.4)---What do you think of the weather yesterday? --- It couldn’t be any worse.can /couldn +afford to do5)How can you afford to share your best seed corn with your neighbors when theyalso enter the competition each year?Focus 2: may/might1.May I come in? 征求意见(10四川)—May I take the book out? —I’m afraid not.2.may/might 也许(12四川)I got close enough to hear them speaking Chinese, and I said “Ni Hao ” just as I might do in China.3.may not/might not“也许不” ,经常与“not sure/not certain”等连用—I don’t really like James. Why did you invite him?(11北京)—Don’t worry. He might not come. He said he wasn’t certain what his plans were.4.固定句式may /might as well“还不如”There is no point arguing with him.Focus 3: need➢needn’t = don’t have to 不必要1)(12全国)I needn’t use a clock to wake me up because at six o'clock eachmorning the train comes by my house.2)(10湖南)You don’t have to buy a gift, but you can if you want to.Focus 4: must1.表“必须”1)Must I hand in my homework？Yes, you must. No, you needn’t.2)(10辽宁)Doctors say that exercise is important for health, but it must be regularexercise.3)(09全国II)I can’t leave. She told me that I must stay here until she comes back.4)(04上海)Children under 12 years of age in that country must be under adu lt’ssupervision when in a public library.2.mustn’t 表“禁止”1)(11全国)If you must smoke, please go outside.2)— Could I have a word with you, mum?— Oh dear, if you must.(06浙江)3)(12重庆)----Must you interrupt now? Can’t you see I’m on the phone?----Sorry Sir, but it’s urgent.4)5)No smoking/spitting/littering/parking3.表“偏偏硬要”不耐烦的语气1)(10陕西)----May I take this book out of the reading room?----No, you mustn’t. You read it in here.2)(10重庆)You mustn’t park here! It’s an emergency exit.3)(05全国Ⅰ)Tom, you mustn’t leave all your clothes on the floor like this! Focus 5: will/would1.表“意愿”1)Will you please…? Would you like to do….I would like to convey my heartfelt appreciation to you for your kind assistancein my English learning when I was in New York.2)(12江苏)Days later, my brother called to say he was all right, but wouldn’t saywhere he was.3)(11重庆)——Why didn’t you come to Simon’s party last ni ght?—— I wanted to, but my mom simply would not let me out so late at night. 2.表“倾向性”All men will die.The door won’t open.Birds will fly to the south in autumn Man will make mistakes. Fish will die without water3.would表过去的一种习惯。

[20__年3月公共英语三级常见语法：情态动
词]情态动词顺口溜
<i></i>PETS网权威发布20__年3月公共英语三级常见语法：情态动词，更多20__年3月公共英语三级常见语法相关信息请访问公共英语等级考试网。

第三节情态动词
常见的情态动词有can、could;may、might;must、need;should;ought to，对于情态动词常考其两方面的内容，一是情态动词用于推测句型，二是情态动词用于虚拟语气(该部分的讲解放在虚拟语气)
一、情态动词用于对现在内容推测的常见句型有：
1、Can/may do sth：表示对现在内容的可能性的推测;
2、Must do sth：表示对现在内容的肯定性的推测。

二、情态动词用于对过去内容推荐的常见句型：
1、can/may have done sth：表示对过去内容的可能性;
2、must have done sth：表示对过去内容的肯定性的推测。

例：1、Mr Green must have failed to receive my letter, otherwise he would have replied.
2、I believe he must have had an accident, otherwise he would have arrived on time.。

1.情态动词can、may、must表示语气和情态，人称与数无变化，动词原形跟着它。

2.情态动词两要点：动词原形跟后面，说话语气较委婉。

can表“能力”，may表“许可”，
must表“责任”或“义务”，否定回答needn't换，"需要”need，dare“敢”。

should“应该”，would“愿”，have to“被迫”表客观。

3.may（might)与must：否定may用mustn't，否定must用needn't。

祝愿句中只用may。

4.need的用法：实义动词表"需要“，后接名、代和不定式。

情态动词表”需要“，没有时
态、数、人称。

其后直接跟动词，多用于疑问和否定。

5.情态动词ought to与should：ought to，should两相通，语气ought to比较重。

6.情态动词shall：shall二三人称用，允诺、命令、要求加警告；shall问句表建议，一三
人称用得妙。

【英语】情态动词英语期末复习经典一、初中英语情态动词1．—Must I clean the classroom now? —No, you_______.A. mustn'tB. can'tC. needn't【答案】 C【解析】【分析】句意：--我必须现在把教室打扫干净吗？--不，你不必。

must I do …?的否定回答是No, you needn't 或者 No , you don't have to 。

根据是否定回答，故选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. mustB. needC. 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．— _________ 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; couldB. Can; can; canC. Can; could; couldD. 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。