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情态动词

专题九情态动词

备考精练

1. (2019连云港)According to the notice, guests at this hotel ________ use the sports center at no extra cost.

A. can

B. should

C. must

D. need

2. (2019南充)—Mum, may I play computer games this evening?

—No way, you ________ finish your homework.

A. can

B. must

C. may

D. will

3. (2019淮安)—Will you stay here for dinner with us?

—Sorry, I ________. My mother is waiting for me at home.

A. mustn't

B. can't

C. needn't

D. couldn't

4. (2019广东)Dirty air and water are harmful. They ________ kill plants, and even people.

A. can

B. can't

C. should

D. shouldn't

5. (2019眉山)—I can't find my phone anywhere.

—You ________ have lost it while shopping.

A. may

B. can

C. should

D. would

6. (2019天津改编)You mustn't walk on the wet hill path because you ________ fall and hurt yourself.

A. need

B. might

C. can

D. must

7. (2019兰州改编)The magazine ________ be Lucy's. We can see her name on the cover.

A. mustn't

B. can't

C. must

D. needn't

8. (2019保定市定兴县一模)You ________ hand in the report tonight. But you must do it tomorrow morning.

A. needn't

B. mustn't

C. can't

D. shouldn't

9. (2019邢台3中三模)Look! Little Jim is swimming so fast. I ________ believe my eyes.

A. shouldn't

B. can't

C. mustn't

D. needn't

10. (2019保定市莲池区二模)She ________ be slow, but at least she doesn't make stupid mistakes.

A. needn't

B. may

C. can't

D. shall

11. (2019邢台市桥西区二模)Although he is only 6 years old, he ________ help his mother do some housework.

A. may

B. must

C. should

D. can

12. (2019石家庄17中二模)I'm a little thirsty. ________ I have a cup of water?

A. Will

B. Should

C. Could

D. Must

13. (2019石家庄43中三模)The boy________be Jason.He is now in London.

A. can't

B. mustn't

C. needn't

D. may not

14. (2020原创)The final examination is coming. I________ stay up to review my lessons.

A. have to

B. may

C. might

D. shall

15. (2020原创)Don't worry! They ________ just play a joke on you.

A. can

B. could

C. may

D. need

16. (2020原创)When you cross the street, you ________ obey the traffic rules.

A. can

B. need

C. must

D. might

17. (2020原创)Students under the age of 16 ________ ride electric bicycles in this school.

A. may not

B. can't

C. needn't

D. shouldn't

18. (2020原创)The man ________ be so tired because he has walked in the desert for almost three hours.

A. can

B. must

C. need

D. would

19. (2020原创)If I didn't give up, the test ________ have succeeded now.

A. could

B. shall

C. must

D. need

挑战题

1. 易错题—I don't care what people think.

—Well, you ________. You're not alone in this world.

A. can

B. may

C. should

D. will

2. 易错题—Robert, could you wash the car for me?

—Yes, I __________. I'm coming, dad.

A. could

B. couldn't

C. can

D. can't

3. 初高中衔接题I ________ asleep because it took me a long time to realize that the telephone was ringing.

A. could have fallen

B. should have fallen

C. must have fallen

D. mustn't have fallen

1.We should keep quiet in the library. We speak loudly.【2019 ?凉山州】

A. must

B. mustn’t

C. can

D. needn’t

2.David, you please sweep the floor and take out the trash?【2019 ?新疆维吾尔族自治区】

A. could

B. may

C. might

D. must

3.— A little bird entered through the open window to join us for dinner last night.

—Wow, the unexpected guest welcomed.【2019 ?湖北省宜昌】

A. will be

B. must be

C. won’t be

D. mustn’t be

4.—I can’t find my phone anywhere.

— You have lost it while shopping.【2019 ?四川省眉山市】

A. may

B. can

C. should

D. would

5.— Listen! Is Sarah singing in the neighbor room?

— No. It be Sarah. She has gone to Italy.【2019 ?湖北省咸宁市】

A. needn’t

B. may not

C. can’t

D. won’t

6.— The driver be hurt badly in the accident.

—That’s true. Let’s send him to the hospital as soon as possible.【2019 ?襄阳市】

A. need

B. can’t

C. must

D. may not

7.—Whose volleyball is this?

—It ___________ be Linda's. She loves volleyball.【2019 ?湖南省益阳市】

A. must

B. can't

C. needn't

8.—Must I hand in the homework right now?

—________. That’s the rule.【2019 ?广西北部湾经济区】

A. Yes, you can.

B. No, you can't.

C. Yes, you must

D. No, you mustn’t.

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

—I’m sorry you 【2019 ?贵州省毕节市】.

A. Could; couldn’t

B. Must; couldn’t

C. Will; can’t

D. May; can’t

10.We ____ pay to get into the concert, because it’s free.【2019 ?大庆市】

A. mustn’t

B. can’t

C. don’t need to

D. might not

11.We’d better __________ our sports meeting because it’s going to rain.【2019 ?四川省广元市】

A. put on

B. put up

C. put off

12.The girl in the music room __________ be Celia. She has gone to the dining hall.【2019 ?四川省广元市】

A. can’t

B. must

C. may

二、易混易错点拨

1.—Mum, it’s too hot. ____________ I swim in the lake?

—No, you ___________. That’s too dangerous!（2019 ?山东省滨州市）

A. Should; can’t

B. Need; mustn’t

C. Must; needn’t

D. Could; mustn’t

2.—May I take the magazine out of the reading room?

—No, you ____________. Please read it here（2019 ?湖南省郴州市）

A. mustn’t

B. wouldn’t

C. needn’t

3.—Whose cap is this? Is it Cindy’s?

—It ____________ be hers. Don’t you remember she even didn’t come to the party?（2019 ?甘肃省敦煌市）

A. can’t

B. might

C. may not

D. must

4.—Will you stay here for dinner with us?

—Sorry, I ____________. My mother is waiting for me at home.（2019 ?江苏省淮安）

A. mustn’t

B. can’t

C. needn’t

D. couldn’t

5.The magazine ____________ Lucy’s. We can see her name on the cover.（2019 ?甘肃省兰州市）

A. mustn’t be

B. can’t be

C. must be

D. needn’t be

6.—Where is Monica? I can’t find her anywhere.（2019 ?乐山市）

—She ____________ be in the library. She loves reading books when she is free.

A. must

B. need

C. can’t

7.According to the notice, guests at this hotel __________ use the sports center at no extra cost.（2019 ?江苏省连云港市）

A. can

B. should

C. must

D. need

8.Ants are pretty small. You might think that they ____________ be rather weak. But what you might not know is that ants are actually very strong for their size.（2019 ?临沂市）

A. need

B. can’t

C. must

9.—Mum, may I play computer games this evening?

—No way, you ____________ finish your homework.（2019 ?四川省南充市）

A. can

B. must

C. may

D. will

10.As middle school students, we ____________ follow the public rules wherever we go.（2019 ?山东省青岛市）

A. would

B. should

C. might

D. could

11.—Some people don’t show their talents at the very beginning.

—I agree. Even Einstein ____________ read until he was seven.（2019 ?江苏省苏州市）

A. can’t

B. mustn’t

C. couldn’t

D. needn’t

12.—This task is really beyond me.

—Well, if you _________ solve it, you won’t get paid.（2019 ?泰州市）

A. can’t

B. needn’t

C. mustn’t

D. shouldn’t

1.【2019 ?江苏省无锡市】With their new lock, you __________ search for keys in your bag any more. Isn’t it cool?

A. needn’t

B. can’t

C. mustn’t

D. shouldn’t

2.【2019 ?湖南省湘西州】—Is that boy Scott？

—No，it________be Scott. Scott is much taller..

A. can

B. can't

C. mustn't

3.【2019 ?甘肃省天水市】—Listen! Is that Linda playing the piano in the room?

—No．It ______ be Linda, she has gone to London.

A．may not B．needn't C．can't D．mustn't

4.【2019 ?广西河池市】—Is that red schoolbag Mary's？

—It ____ be hers．She hates that color．

A．may B．must C．can 't D．might

5.【2019 ?贵州省黔南州】— _______ 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 6.【2019 ?湖南省邵阳市】—Will Sam go to the cinema with us tonight？

—I'm not sure．He _________ not be free．

A．may B．should C．can

7.【2019 ?湖南省湘潭市】—Who is singing in the next room? —It ____ be Lisa, but I'm not sure.

A．must B．may C．need

8.【2019 ?辽宁省本溪市】The man _______ be a doctor in this hospital，but I'm not sure．

A．must B．would C．can D．might

9.【2019 ? 青海省】—Must I finish this work at once? —No，you______．

A．can't B．won't C．needn't

10.【2019 ?四川省广元市】The girl in the music room __________ be Celia. She has gone to the dining hall.

A. can’t

B. must

C. may

11.【2019 ?山东省滨州市】—Mum, it’s too hot. ________ I swim in the lake?

—No, you ___________. That’s too dangerous!

A. Should; can’t

B. Need; mustn’t

C. Must; needn’t

D. Could; mustn’t

12.【2019 ?湖南省郴州市】—May I take the magazine out of the reading room?

—No, you _______. Please read it here

A. mustn't

B. wouldn't

C. needn't

13.【2019 ?甘肃省敦煌市】—Whose cap is this? Is it Cindy’s?—It___be hers. Don't you remember she even didn't come to the party?

A. can’t

B. might

C. may not

D. must

14.【2019 ?江苏省淮安】—Will you stay here for dinner with us?

—Sorry, I ____________. My mother is waiting for me at home.

A. mustn't

B. can't

C. needn't

D. couldn't

15.【2019 ?甘肃省兰州市】The magazine ____ Lucy’s. We can see her name on the cover.

A. mustn’t be

B. can’t be

C. must be

D. needn’t be

16.【2019 ?乐山市】—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

情态动词表推测用法总结及专项练习

情态动词表推测用法总结及专项练习 1.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。如：It can’t [couldn’t] be true. 那不可能是真的。 What can [could] they be doing? 他们会在干什么呢? We could go there this summer. 今年夏天我们可能要去那儿。注：can 有时也用于肯定句中表示推测，主要用于表示理论上的可能性(即从理论上看是可能的，但实际未必会发生)，或表示“有时”之意。如： Even experienced teachers can make mistakes. 即使是有经验的教师也可能出错。 She can be very unpleasant. 她有时很令人讨厌。 (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。如： He could have gone home. 他可能已经回家了。 He can’t [couldn’t] have understood. 他不可能理解了。

Why does he know this? Can [Could] someone have told him about it? 他怎么知道? 会是哪个人告诉他了吗? (3) “could+完成式”除表示对过去的推测外，还有以下重要用法： ①表示过去没有实现的可能性，常译为“本来可以”。如： I could have lent you the money．Why didn’t you ask me? 我本来可以借这笔钱给你的。你为什么不向我提出? ②用来委婉地责备某人过去应该做某事而没有去做，常译为“本来应该”。如： You could have helped him. 你本来应该帮助他的。 ③表示“差点儿就要”。如： I could have died laughing. 我差点儿笑死了。 2. 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。 (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）。如： He may [might] know the answer. 他可能知道答案。

情态动词表推测用法总结(整理稿)

情态动词表推测用法总结（一）情态动词表推测能用于表推测的情态动词：英语情态动词表推测的时态构成（1）语气部分：（以下情态动词语气由强至弱）肯定句：must、may、might（=could）否定句：can’t（=couldn’t）、mayn’t、mightn’t 疑问句：can、could（语气更加委婉不确定）（2）时态部分：一般现在或一般将来时间的推测：情态动词+be；情态动词+v. 对过去时间的推测：情态动词+have done 对正在进行的时态的推测：情态动词+be doing （二）表许可、请求 1、 can, could 2、may, might 3、must 4、shall 5、will, would 1. can, could 1) 用在疑问句中，表示一般的请求。两者不同在于：用could 要比用can更加委婉，特别是没有把握得到允许时。 Can I go with you? 我能和你一起去吗？Could I ask you something? 我能问你一个问题吗？ 2) 用在陈述句中，表示许可：You can leave when you finish your work. 做完事情后你才可以走。 2. may, might 1) may用在疑问句中，也表示一般的请求。同can相比，may比较正式，常常表示尊敬之意。并且，may在疑问句中常用于第一人称，很少有May you…/they…这样的句型。Might比较少用在疑问句中，它表示请求的时候常用陈述句。 May I make a suggestion? 我可以提个建议？ 2) 用在陈述句中，表示许可，此时与can, could相近。 You may have a rest before we set out again. 我们再次出发之前你可以先休息一下。 3. must 1) 表示说话人“不许”和“禁止”某人做某事，有很强的劝告语气。 Cars must not be parked here.此地不准停车。 2) Must的一般疑问句的回答有两种，表示肯定，用Yes, you must. 表示否定，用No, you needn’t. Must I post this letter tomorrow? 我明天必须得寄掉这封信吗？ Yes, you must. 是的，你必须明天寄掉。

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

情态动词归纳表

高考热点透视热点一：表猜测的情态动词的用法。热点二：情态动词+have done 情态动词+have done 的用法有两种含义： 1. 对过去情况的猜测。由表猜测的情态动词+have done 构成。上表已经提到。 2. 表示与过去事实的主观设想。有轻微的责备、后悔之意。请参看下表：

热点三：shall，will，must等 1. Shall ① 用于第一人称疑问句中表示说话人征求对方的意见或向对方请求。例：—The room is so dirty. _______ we clean it? —Of course. ( 03 上海春招) A. Will B. Shall C. Would D. Do ② 用于第二人称陈述句表示说话人或他人的意图、命令、允诺、警告、命令等。例：“The interest _______ be divided into five parts, according to the agreement made by both sides,” declared the judge. (04 重庆，24) A. may B. should C. must D. shall 2. Will ① 表示意愿或意志。例：I __________ argue with you. ② 当主语是物时，则表示“不起作用”。例：The drawer _________ shut. 3. Must 表“必须、一定要”。例：— Who is the girl standing over there? — Well, if you _______ know, her name is Mabel. （02，天津） A. may B. can C. must D. shall 如有侵权请联系告知删除，感谢你们的配合！

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

情态动词知识点总结

情态动词知识点总结一、初中英语情态动词 1．Rock music ______ sound popular with the young, but it's not the favor of the aged people. A. must B. need C. should D. may 【答案】 D 【解析】【分析】句意：摇滚音乐在年轻人中听起来受欢迎，但是它不受上了年龄的人的赞同。must, 表示猜测时，指把握比较大的肯定猜测，肯定……；need需要；should,应该；may，表示把握比较小的肯定猜测，可能，也许。结合句意，故选D。【点评】考查情态动词辨析，注意几个常见情态动词的意思和用法。 2．——Shall we meet at the station at 7 am? ——In fact, we _______. The train _______ until 9 a. m. A. mustn't; doesn't leave B. mustn't; leaves C. needn't; won't leave D. needn't; will leave 【答案】 C 【解析】【分析】need，需要，否定式是needn't；must的含义是必须一定，其否定形式mustn't表示禁止的含义。句意：我们上午七点在车站见面好吗？——实际上，我们不必。火车到上午九点钟才出发。结合语境可知后一空描述的是将要发生的动作，故用一般将来时态。选C。【点评】情态动词的考查是初中英语考查的重点，平时学习中一定要熟记这些词的基本词义及用法上的不同，注意其用法及在句子中表达语气的不同。考试中结合语境选择合适答案。 3．We __________ pay to get into the concert. It's free. A. can't B. mustn't C. might not D. don't have to 【答案】 D 【解析】【分析】句意：我们进入音乐会不必付钱。这是免费的。A.can"t 不可能； B. mustn"t 禁止； C.might not 可能不；D. don"t have to不必。根据It's free.可知音乐会是免费的，因此不必付钱。故选D。 4．—Where is George? —He _______ be here just now. His coffee is still warm. A. need B. can't C. must D. shouldn't 【答案】 C 【解析】【分析】句意：——乔治在哪里？——他刚才一定在这里，他的咖啡还是热的。A.

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)

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.

情态动词的语法特征

情态动词的语法特征 1）情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。 2）情态动词除ought和have外，后面只能接不带to的不定式。 3）情态动词没有人称，数的变化，即情态动词第三人称单数不加-So 4）情态动词没有非谓语形式，即没有不定式，分词，等形式。 1、表示能力:can /could , be able to （+do） 1）c an和be able to的区别：观察以下各句，可知can只能用于________ 和__________ ；be able to可用于各种时态。 eg:① I can /am able to speak En gliS他能说英语。 ②He could/ was able to eat four pieces of bread when he was young. ③They will be able to finish the housework soon. 2）C an/couldyou+动原+其它？表示征求对方意见或提出请求，表示委婉语气, 但在这个句型里could 比can更委婉。但要注意它的回答用can不用could. Eg: ---Could you help me ?---Yes, I can. 2、表示许可:may/might, can/coul（但一定要注意：以may开头的疑问句的否定 — 例如：---May I come in- Yes, you may. / No, you can ' t = No ,you mustn 3、表示必须、必要:must, have to表示 _________ ；needn 表示 Eg: You must/ have to fin ish the wo你必、须完成这个工作。 1）观察以下句子，我们可知must表示说话人的______________ ; have to表示____________ 。 Eg:① I must go home我必须回家； ② He has to give up smoking because of badly cou 因h为咳嗽，他不得不戒烟。 2）观察以下句子，我们可知mustn '表示_______ ，译为__________ ；don' t have to译为。 Eg:① Youmustn 'beat her.你不准打她。 ② -Must I finish my homework n —/Yfes, you must ./ Nyou needn=youdon' t have to 、我必须现在完成作业吗？--是的，你必须完成。/不，你不必了。 4、表示推测: must, can, could , may, might. Eg:① You run for hours, you must be very ti 你跑了几个钟，你一定很累了。 ②It can 'be John. He has gone to the U不可能是John,他已经去了英国。 ③—Vho can it be?——It may/could/might be Jack. It looks like him. -可能是谁呢？--可能是Jack,看起来像他。观察以上各句总结：肯定推测_______ 译为________ ;否定推测___________ 译为；疑问推测有个译为；可能性推测用。及时训练并归纳最常考情态动词的用法： 1 、---Would you like to go fishing with me ? ---Yes, /_ 。 2、---May I put these things here? ---Yes, _________ / No, ___________ 3、---Must we hand in our homework today? ---Yes _________ / No, ________ 4、---Look! Some one is coming. It __________ be our class teacher.（用 must/ca n/could/may/mig填空） ---It _ be him. He has gone to Beiji ng. 1. 中考怎么考？丨 1. —Look! I ' ve chosen so manhthe-Do you know all these should _______ （付

【英语】情态动词(完整版)

【英语】情态动词(完整版) 一、单项选择情态动词 1．We ________ take clean drinking water for granted. One day we may run out of it. A．needn't B．can't C．won't D．shouldn't 【答案】D 【解析】【详解】考查情态动词。句意：我们不应该把拥有洁净的饮用水看作是理所当然的。也许有一天，我们会用完它。shouldn't“不应该”，符合句意。needn't不必；can't不可能；won't将不。故选D。 2．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。 3．—I have something important to tell John. But I can’t find him. —His cell phone is here, so he ________ have gone too far. A．mustn’t B．needn’t C．wouldn’t D．ca n’t 【答案】D 【解析】【详解】考查情态动词。句意：——我有重要的事情要告诉John，但是我找不到他。——他的手机在这儿，所以他不可能走得太远。根据句意可知，此处是对过去的一种猜测，此处是表达不可能……，用can’t have done。故选D。 4．— Excuse me, do you mind if I open the window? — Well, if you __________. I can put on more clothes. A．can B．may

【英语】情态动词知识点(大全)经典

【英语】情态动词知识点(大全)经典一、初中英语情态动词 1． Look! The traffic light has turned red. We _____ stop our car. A. can B. can't C. must D. 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. 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．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。 4．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

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