(完整版)初中英语情态动词讲解练习及答案

情态动词

一、考点、热点回顾

【词汇辨析】

1.sometimes/ some times/sometime/ some time:

sometimes: “有时”=at times. He is sometimes late for school.

some times: “几次” I have been to Nanjing some times.

sometime: “某一时刻” I bought it sometime last spring.

We’ll meet again sometime next week.

some time: “一段时间” We have to stay here for some time.

2. many/ much/ a few/ a little/ few/ little

(1)many修饰可数名词，much修饰不可数名词；都表示许多。例如：

许多书许多牛奶

(2)a few和a little都表示"有一点儿"，侧重于肯定，相当于"some"，但a few修饰可数名词，

a little修饰不可数名词，例如：

He has a few friends in London.

---Would you like some coffee?

---Yes, just a little.

(3)few和little表示"几乎没有"，侧重否定。few后接可数名词，little后接不可数名词。例如：

He is a strange man. He has few words.

Hurry up, there is little time left.

【固定搭配】加-ing

be busy doing sth.忙于做……eg: Mother is busy cooking.

look forward to + doing sth. 期待做……eg: Tom looks forward to seeing his father again.

Thank you for (doing) sth. 为了…感谢你eg: Thank you for your help.

愉快地做某事eg: I had great fun playing in the water.

=have a good time doing sth eg: I had a good time playing in the water.

have problem/trouble/difficulty (in)doing sth.做某事有困难

eg: I have difficulty finishing my homework in 2 hours.

【情态动词】又叫情态助动词。它们具有以下特点：

⑴它们必须与其他动词连用，即：情态动词＋动词原形

表示说话人对所述动作的看法，如需要、可能、意愿或怀疑等。

⑵绝大多数情态动词没有人称和数的变化，即第三人称单数不加-s

（以be和have 开头的情态动词短语除外）。

⑶在意义上，情态动词具有“多义性”。

例：can既可表示能力，又可表示可能、允许等意义。

【情态动词的基本用法】

1. can的基本用法：

⑴表示体力或智力上的能力，即“能够，会”，可与be able to转换。

例：He can speak English. = He is able to speak English.

—Can you play basketball?

— No, I can’t.

如果表示将来具备的能力，要用will be able to。

例：If I have a good sleep, I will be able to do the problem.

⑵表示许可，主要用于口语，书面语一般用may。

例：—Can we go home now, please?

— No, you can’t.

You can only smoke in this room.

You can’t keep the library books for more than a month.

⑶表示“可能”，与may同义，但一般用在疑问句中。

例：What can he possibly want?

在否定句中，否定形式can’t表示推测“不大可能”。

例：Anybody can make mistakes.

The news can’t be true.

与第一、二人称连用时，还可以就可能的解决问题的方式或可能的行为提出建议。在这里，也可用could使语气婉转。

例：Can / Could we meet again next week? 下周我们可以再见面吗？

—What shall we do? 我们怎么办呢？

— We can / could try asking Lucy for help. ——我们可以请露茜帮忙试试看。

You can / could help me with the cooking. 你可以帮我做饭。

2. may的基本用法:

⑴表示“许可”，用can比较口语化。

例：You may / can come if you wish. 如果你想来，你就来。

You may not pick flowers in this park. 本公园内不许摘花。

（may not表示按规定不许可，如果用mustn’t则表示说话人不许可。）

我可以在这里抽烟吗？

—mustn’t表示明确的禁止。）

⑵肯定句中表示推测，“可能”。

例：It may rain tomorrow. 明天可能会下雨。

The news may not be true. 这个消息可能不会是真的。

注意：如果

例：Can it be true? 那会是真的吗？

Who can he be? 他究竟是谁呢？

⑶【注意】：……？

—Yes, you —No

3. must的基本用法:

⑴表示必须，强调说话人的主观意志。

例：I must go now, or I’ll be late.

You must be here by ten o’clock.

【注意】：表示“必须“时，must,而不是mustn’t。

也就是：—Must I/we do it now？

—Yes, you

—No, you

例：—Must I go with them?

—No, you.

⑵表示推测，一般只用于肯定陈述句,表示非常肯定。

例：She didn’t look at me. She must be angry. 她不朝我看，一定是生气了。

He is good at English. He must know the word. 他英语好，准知道这个词。

You must be Mr. Jones. 想必您就是琼斯先生吧。

4. have to的基本用法：

have to可视为情态动词，但它与其他情态动词在用法上稍有不同。其他情态动词没有人称和数的变化，而have to却有人称和数的变化，要视主语的不同而变化。

例：I / You / We / They have to….

He / She / It has to….

You don’t have to….

Does she have to…?

，意思是“必须，不得不”。

和must不同之处：must强调主观需要

have to强调客观需要。

例：Sorry, I have to leave now. 对不起，现在我得走了。

I’ve got to go to a meeting. 我得去参加一个会议。

Will he have to work deep into the night? 他将不得不工作到深夜吗？

5. need的基本用法：

need的基本词义是“需要”，它既可作情态动词，又可作实义动词。

⑴ need用作情态动词时，只用于否定句和疑问句。它只有一种形式，后接动词原形。

例：I don’t believe you need worry. 我相信你没有必要焦急。

—Need we go so soon? 我们需要这么早就去吗？

— Yes, we must. / No, we needn’t. 是的，必须。／不，不必。

So I needn’t tell him, need I? 所以我不需要告诉他，对吧？

请比较以下两句话的不同意思：

You needn’t buy the coat. 你没有必要买那件外衣。（你还没买）

You needn’t have bought the coat. 你没有必要买这件外衣的。（而你却买了）

【注意】：I/we……？

—Yes，—No, you

⑵need用作实义动词时，有时态、人称和数的变化。

如果人作主语，一般后接带to的动词不定式。即

如果物作主语，一般后用

例如：I need to look up this word in the dictionary.

My watch needs mending/to be mended. 我的手表需要修理了。

We don’t need to work today. (= We needn’t work today.)

Does he need to go right now? (= Need he go right now?)

6. had better的基本用法：

had bette r常略作’d better。现代语法认为它是一个助动词，因为它后接不带to的动词不定式。

意思是“最好做某事；还是做某事比较好”。

例：You’d better get some sleep. 你最好睡一会儿。

You’d better not do that again. 你最好别再做那件事。

What had we better do now? 我们现在怎么做才好呢？

Hadn’t we better tell her the truth? 我们是否最好不告诉她真相?

7. could, should, would, might表示推测：

①.must多用于肯定句中表示把握性极大的推测,意思为“一定、肯定”。

如: You have worked hard all day. You must be tired. 你已辛苦工作一整天了,一定累了。

The book must be his. His name is on the cover. 这本书一定是他的,封面上写着他的名字。

【注意】must不表推测时,在肯定句中意思为“必须(强调内在的职责)”,在否定句中意思为“不许、禁止”,以它开头的疑问句否定回答常用needn’t或don’t (doesn’t) have to。

如:We must obey the traffic rules. 我们必须遵守交通规则。

Cars mustn’t be parked here. 此处严禁停车。

—Must we hand in the papers this week? 我们必须本星期交论文吗?

—No, you needn’t. 不,你们不必(本星期交)。

②. can / could多用于否定句、疑问句或感叹句中表示推测、怀疑,两者在时间上没有差别。用can时

不相信的程度更强一些,

如:The man under the tree can’t be Tom. He’s gone to England.这个人不可能是Tom,他已经去英国了。

Can it be true that he was fooled by a five-year-old boy? 他被一个五岁的孩子愚弄了,这能是真的吗?

Could this be an excuse? 这会不会是个借口?

How can you be so careless! 你怎么这样粗心!

③.may / might多用来表示把握性不大的推测,意思为“也许、可能”, might比may的把握性更小一些。

(注意区分“不可能”与“可能不”在把握性大小上的差异。) 如:Mr. Wang may know Professor Li’s telephone n umber.王先生也许知道李教授的电话号码。

This might be the key Tom has been looking for.这可能就是汤姆一直在找的钥匙。

She may not be there today. 今天她可能不在那儿。

二、典型例题【中考链接】

（）1．—Who is the man over there? Is it Mr. Li?

— No, it ______ be him. Mr. Li is much taller.

A. mustn’t

B. may no

C. can’t

D. needn’t

（）2．—Must I go with them tomorrow？

— No，you ______.

A. mustn't

B. shouldn't

C. needn't

D. can't

（）3．—______ I take some photos in the hall?

— No, you ______.

A. Can, needn’t

B. M ust, mustn’t

C. Could, won’t

D. May, mustn’t

（）4．—Dad, must I finish my homework today?

—No, you ________. You may do it tomorrow.

A. needn’t

B. mustn’t

C. don’t

D. won’t

（）5．—The lake is said to be dry. Is that true?

—It _______.Look, some kids are swimming in it.

A. must be true

B. can’t be true

C. may not be true

（）6．—What is your mother going to do this Saturday?

—I’m not sure. She _____ go to see my grandmother.

A. can

B. must

C. may

（）7．—Susan has bought a large house with a swimming pool.

—It ______ be very expensive. I never even dream about it.

A. must

B. might

C. can’t

D. shouldn’t

（）8．—Listen! Is Professor Johnson giving a report in the hall?

—No, it be him. He has gone to Japan.

A. needn’t

B. may not

C. mustn’t

D. can’t

（）9．—Let’s go to the West Hill Park by taxi.

—Oh, it is not far away from here. We _______take a taxi.

A. couldn’t

B. mustn’t

C. needn’t

D.can’t

（）10．—Can you play the piano?

—Yes, I _______. I often practice it on weekends.

A. needn’t

B. need

C. can’t

D. can

三、课后练习

一、用can, may, must, need, have to, had better的适当形式填空：

1.You ________________ return the library book on time.

2.I ______________ (not) find the way to the hospital. _______________ you show me the way?

3.—________________ I finish the work right now?

— No, you ________________ (not). You ____________ do it later.

4.He said he ________________ (not) come tonight.

5.Her mother was ill. She ________________ stay at home and look after her.

6.It’s time for class. You ________________ stop playing football or you __________be late for class.

7.We ________________ start right now, or they would get there first.

8.The cloud is lifting, so it ________________ (not) be a rainy day tomorrow.

二、选择填空

（）1.—Do we have to finish our homework this afternoon?

—Yes, you ________.

A. must

B. can

C. may

D. need

（）2. —Must I be in hospital for a week，Doctor?

—No，you . You can go back home tomorrow.

A.mustn’t

B. needn’t

C. must

（）3. The desk is not dirty. You _______clean it.

A. mustn’t

B. shouldn’t

C. needn’t C. can’t

（）4. —May I watch TV for a while？

—No, you _______. You have to finish your homework first.

A. shouldn’t

B. needn’t

C. mustn’t

D. won’t

（）5.—Is Jessica giving us a speech this evening?

—No, it ________be her. She________ to Japan.

A. mustn’t; has gone

B. mustn’t ;has been

C. can’t ;has gone

D. can’t ;has been （）6. It’s the library! So you________ know shouting is not allowed here.

A. can

B. must

C. need

D. may

（）7. Boys and girls, don’t forget your report . It ______ today.

A. can’t fin ish

B. can’t be finished

C. should finish

D. should be finished

（）8.—Mr Smith must have been to your home this morning.

—No, he ______ ,because he didn’t know my address.

A. couldn’t

B. can’t

C. mustn’t

D. may not

（）9. —Must I mop up the window now?

—No, you________.

A.needn’t

B. can’t

C. shouldn’t

D. mustn’t

（）10. —Is Lucy knocking at the door?

—No. It ________ be Lucy. She is in Japan now.

A. needn’t

B. must

C. can’t

（）11. —Another cup of coffee?

—No, thanks. I _____ be off. Mary is waiting for me.

A. can

B. may

C. must

D. might

（）12. —I’m a little tired. Let’s go to the zoo by taxi.

—We take a taxi. It’s not far from here.

A. can’t

B. mustn’t

C. couldn’t

D. needn’t

（）13. If the traffic light is red, you ________ cross the road. It’s very dangerous.

A. don’t

B. mustn’t

C. needn’t

D. wouldn’t

（）14. —Must I finish watering the flowers now?

—No, you________.

A. must

B. won’t

C. needn’t

D. can’t

（）15. —I can’t give up smoking, doctor.

—For your health, I’m afraid you ________.

A. may

B. can

C. have to

D. must

（）16. It is usually warm in my hometown in March, but it _______ be rather cold sometimes.

A. must

B. can

C. should

D. would

（）17. —Our class won the English speaking contest.

—Congratulations! You _______ be very proud of it.

A. can

B. need

C. would

D. must

（）18. —Excuse me, where are we going to have our class meeting?

—I’m not sure. Ask our monitor, please. He know.

A. can

B. may

C. need

D. shall （）19. —____________I borrow these magazines?

—Sorry, only the magazines over there can be borrowed.

A. Must

B. Would

C. May

D. Need （）20. If the traffic light is red, you ________ cross the road. It’s dangerous.

A. don’t

B. needn’t

C. mustn’t

D. wouldn’t

典型例题

例1答案 C 分析：表示否定的猜测用can’t 。must表示推测时，意为“一定”，只能用于肯定句，而must 的否定must not（mustn't）表示“不应该”、“不许可”、“不准”、“禁止”等。

例2答案 C 分析：在回答带有must的问句时，否定式常用need not (= needn't)，表示“不必”，而不用must not，因为must not表示“不可以”。

例3答案D 分析：本题第一句是请求对方的允许，需要用May，其否定式为mustn’t。

例4答案A。对于以情态动词must提问的疑问句，否定回答要用“No, 主语+needn’t”，故由问句中的must和答句中的No可选A。

例5答案B

例6答案C

例7答案A考查情态动词must表示肯定的推测。结合关键信息“I never even dream about it.”可知题意为“它肯定是非常贵的”，故排除B、C、D三项。

例8选D。本题考查can’t表示否定的推测。四个选项都是情态动词的否定形式，分别意为“不能；不可能”、“千万不能”、“应该”、“可以；可能”。结合关键信息“He has gone to Japan.”可知“他不可能是约翰教授”应选D。

例9选C

例10选D。以can 引导的一般疑问句再作肯定回答时还是用can。

课后练习

一、1. must 2. can’t, Could 3. Must, needn’t, may 4. couldn’t 5. had to 6. must, may 7. had better 8. can’t

二、1A2B3C4选C。对于情态动词may的一般疑问句的肯定回答为：Yes，you may / can . 否定回答为：No, you mustn’t.5C6B7D8A9A

10选C。考查情态动词can’t表示推测的用法。can’t表示否定的推测；must表示肯定的推测。由题意“不可能是露西，她现在在日本”可知应选C。

11选C。考查情态动词must的用法。结合关键信息“Mary is waiting for me.”可知题意为“我必须离开了”，故排除A、B、D三项，选C。

12选D。四个选项都是情态动词的否定式，结合关键信息“It’s not far from here.”可知“我们不必乘出租车”，故排除A、B、C三项，选D。

13选B。考查情态动词must n’t的用法。mustn’t意为“一定不能”，由“很危险”可知用mustn’t，故选B。

14选C。考查对must开头的一般疑问句的回答。以must开头的一般疑问句，作否定回答时用情态动词needn’t，故正确答案为C。

15选C。考查情态动词have to的用法。may意为“可能、或许”，can意为“能、会”，have to意为“必须、不得不”，表客观要求，而must 表主观愿望。根据题意“为了健康，你必须戒烟”可选C。

16选B17选D

18选B。考查情态动词may表示推测。结合前句“I’m not sure. Ask our monitor, please.”可知题意为“他可能知道（我们将在哪里开班会）”，故选B。may表示可能性的推测，常用在肯定句中。

19选C

20选C

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( )1 John___ come to see us tonight, but he isn't very sure yet. A. may B. can C. has to D. Must 2 They ___ do well in the exam. A. can be able to B. be able to C. can able to D. are able to 3 —May I take this book out? —No, you___. A. can't B. may not C. needn't D. aren't 4 You___ go and see a doctor at once because you're got a fever. A. can B. must C. dare D. would 5 —Can you speak Japanese? —No, I____. A. mustn't B. can't C. needn't D. may not 1. – He___ be in the classroom, I think —No, he ___ be in the classroom. I saw him go home a minute ago. A. can; may not B. must; may not C. may; can't D. may; mustn't 2 —Shall I get one more cake for you, Dad? —Thanks, but you___, I've had enough. A. may not B. must not C. can't D. needn't 3 Even the top students in our class can't work out this problem, so it be very difficult. A. may B. must C. can D. need 4 He isn't at school. I think he ___ be ill. A. can B. shall C. must D. has to 5 ___ I take this one? A. May B. Will C. Are D. Do 1 The children___ play football on the road. A. can't B. can C. mustn't D. must 2 You ___ be late for school again next time. A. mustn't B. needn't C. don't have to D. don't need to 3 —Must I do my homework at once? —No, you___. A. needn't B. mustn't C. can't D. may not 1 His arm is all right. He___ go and see the doctor. A. has not to B. don't have to C. haven't to D. doesn't have to 2 He had to give up the plan, ___ he? A. did B. didn't C. does D. doesn't 3 They had to walk here, ___ they? A. mustn't B. did C. didn't D. hadn't 1 He had better stay here, ___ he? A. doesn't B. don't C. hadn't D. isn't 2 You'd better___late next time. A. not to be B. not be C. won't be D. don't be 3 You'd better ___ your hair ___ once a month. A. had; cut B. had; cutted C. have; cut D. have; cutted 4 You___ ask that man over there. Maybe he knows the way. A. had better not to B. had not better C. had better D. had better not 1 —Shall we go and visit the History Museum next Sunday? —________ A. Here you are B. Sorry, I can't C. Yes, please D. Let me try 2 —Why don't you ask Mike to go with us? —Thanks, ___. A. I will B. I won't C. lean D. I may 3 —___ I take the newspaper away? —No, you mustn't. You____read it only here. A. Must; can B. May; can C. Need; must D. Must; must 1 Excuse me. ___ you please pass me that cup? A.Do B. Should C. Would D. Must 2 ___ you like to have another try? A. Could B. Will C. Would D. Do 3 —Would you like to go boating with us? —Yes, ___. A. I'd like B. I want C. I'd like to D. I do 1 You___ worry about your son. He will get well soon. A. needn't B. can't C. mustn't D. have to 2 The poor man needs our help, ___ he? A. need B. needn't C. does D. doesn't 3 —Must we do our homework first? —No, you___. You may have a rest first. A. mustn't B. needn't C. may not D. can't 1. I told Sally how to get here, but perhaps I _______ for her. A. had to write it out B. must have written it out C. should have written it out D. ought to write it out 2. —There were already five people in the car but they managed to take me as well. —It _______ a comfortable journey. A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been 3. It’s nearly seven o’clock. Jack _______ be here at any moment. A. must B. Need C. should D. can 4. Johnny, you _______ play with the knife, you _______ hurt yourself.

初中英语情态动词用法详解 【情态动词知识梳理】 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。 1. can的用法： （1）.表示水平、许可、可能性。表示水平时一般译为“能、会”，即有种水平，尤其是生来具备的水平，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. 你能够用我的字典。（3）.表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t译为“不可能”。如：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。 【例题】—I think Miss Gao must be in the library. She said she would go there.—No. She __be there, I have just been there. 【解析】根据下文“我刚去过那儿”可知，应为“不可能”，can’t表示推测[答案] 2. could的用法： （1）.can的过去式，意为“能、会”，表示过去的水平。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 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.能够。（注意回答） 3. may的用法： （1）.表示请求、许可，比can正式，如：May I borrow your bike?我能够借你的自行车吗？You may go home now.现在你能够回家了。 【例题】—_______ I borrow your MP3?—Sure . Here you are. A. May B.Should C.Must D. Would

最新初中英语情态动词易错题精选经典1 一、初中英语情态动词 1．——You look pretty in green, Kate. ——Thank you. I like green. Green ______give me energy. A. can B. must C. should D. has to 【答案】A 【解析】【分析】句意:一一凯特，你穿看绿色的衣服很漂亮。一一谢谢，我喜欢绿色。绿 色给我能量。A.能，表示能力;B.must必须，强调主观愿望;C.应该，强调责任与义务;D.必须. 强调客观要求。绿色能给我力量，我喜欢。故选A。 2．All passengers ______ go through safety check before they take a plane. A. can B. may C. must D. could 【答案】 C 【解析】【分析】句意：所有乘客登机前必须接受安全检查。A. can能够，表示能力；B. may可以，表示许可；C. must必须；D. could可能，可以。登机前必须安检。故选C。 【点评】情态动词词义辨析。以及can、may、must、could四个词的词义和用法。 3．L ook at the sign! It says “No Smoking!” You ________ smoke here. It's dangerous. A. mustn't B. ought not to C. needn't D. don't have to 【答案】 A 【解析】【分析】句意：看这个标志！上面写道“禁止吸烟！“你不能抽烟。这是危险的。 A.mustn't 禁止，不允许； B.ought not to不应该，不应当； C.needn't不必； D.don't have to 不必。根据“No Smoking!”可知此处禁止吸烟，故答案为A。 【点评】考查情态动词。掌握情态动词的意义和用法。 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 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。 5．—I wonder if this smart phone is Mary's.—It _______ belong to her. _______ is totally different from this one. A. mustn't; Her B. can't; Her C. can't; Hers D. may; Hers 【答案】C 【解析】【分析】句意：――我想知道这个智能机是否是玛丽的。――不可能属于她，她

初中英语情态动词的基本用法讲解 1. can （could） 1）表示能力，could 主要指过去时间。 Two eyes can see more than one. 两只眼比一只眼看得清。 Could the girl read before she went to school? 这女孩上学前能识字吗？ 2）表示可能（理论上或是逻辑判断上）。 The temperature can fall to —60 °C , that is 60 °C below freezing. 气温可降至一60 C，也就是零下60 C。 He can't （couldn't） have enough money for a new car. 他不可能有足够的钱买新车。 You mustn't smoke while you're walking around in the wood. You could start a fire. 在林子里走时勿吸烟，那样可能会引起火灾。 3）表示允许。 Can I have a look at your new pen? 我可以看一看你的新钢笔吗？ He asked whether he could take the book out of the reading-room. 他问他可不可以把书带出阅览室。 4）表惊异、怀疑、不相信等态度。主要用于否定句、疑问句或感叹句中。 Where can （could） they have gone to? 他们会去哪儿了呢？ He can't （couldn't） be over sixty. 他不可能超过六十岁。 How can you be so careless? 你怎么这么粗心？ 5）比较委婉客气地提出问题或陈述看法。 Can （Could） you lend me a hand? 帮我一把好吗？ I' m afraid we couldn 't give you an answer today. 恐怕我们今天不能给你答复。 2. may （might） 1）表允许，might 可以指过去时间，也可指现在时间，语气更委婉。 You may take whatever you like. 你喜欢什么就拿什么。 He told me that I might smoke in the room. 他告诉我可以在房间里抽烟。 May （Might） I ask for a photo of your baby? 我可以要一张你宝宝的照片吗？ 在回答以may引起的问句时，多避免用这个词，而用其它方式，如Yes, please. / Certainly. / Please don' t ./ You' d better not. / No, you mustn ' t.等，以免显得太严峻或不客气。 2）表可能（事实上）。可以指过去时间，也可以指现在时间，但语气更加不肯定。 He may be at home. 他可能在家。 She may not know about it. 她可能不知道这件事。 He was afraid they might not agree with him. 他担心他们可能不同意他的意见。 They might be having a meeting, but I ' m not sure. 他们有可能在开会，不过我不肯定。 3. must 1）表示义务。意为“必须” （主观意志）。 We must do everything step by step. 我们一切都必须循序渐进地做。 You mustn' t talk to her like that. 你不可能那样对她说话。 --Must we hand in our exercise —books now? 我们现在就要交练习本吗？ --No, you needn' t. / No, you don' t have to. 不必。（这种情况下，一般不用mustn' t）2）表示揣测。意为“想必、准是、一定”等，只用于肯定句。

情态动词有具体的词义，但也同助动词一样，需要与动词原形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。一. 10个最重要情态动词的用法 1. can ⑴ 表示能力，一般译为“能、会”，尤其指生来具备的能力。 She can swim fast, but I can’t . 她会游泳，但我不会。 ⑵ 表示许可，常在口语中。 You can use my dictionary. 你可以使用我的词典。 ⑶ 表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t译为“不可能”。 Can the news be true? 这个消息可能是真的吗？ It can’t be our teacher. He is on a visit to the Great Wall. 不可能是我们老师。他正在参观长城呢。 2. could ⑴ can的过去式，意为“能、会”，表示过去的能力。 He could write poems when he was 10. 他十岁的时候就会写诗。 ⑵ could在疑问句中，表示委婉请求的语气，此时could没有过去式的意思。 Could you do me a favour? 你可以帮我一个忙吗？

—Could I use your pen? 我可以使用你的钢笔吗？ —Yes, you can.（注意回答）可以。 3. may ⑴ 表示请求、许可，比can正式， May I borrow your bike? 我可以借用你的自行车吗？ You may go home now. 你现在可以回家了。 ⑵ 表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。 It may rain tomorrow . 明天可能会下雨。 ⑶ may的过去式为 might。might 也可以表示可能性低于may（此时might没有过去式的意思）。 He is away from school. He might be sick. 他离开学校了。也许是病了。 ⑷ 表示希望、祈求、祝愿，常可译为“祝愿”。通常是用may +主+V May you have a good time！ 祝你玩的愉快！ May you be happy! 祝你快乐！ May you succeed！ 祝你成功！ 4. must

初中英语情态动词专项练习题 情态动词:can could may might will would must have to need had better should 情态动词特点 1.情态动词没有人称和数的变化. 2.情态动词后必须跟动词原形。 考点一：can，could, may，must 等情态动词的用法： 1. can 的用法： （1）.表示能力,译为“能、会”，即有种能力，尤其是生来具备的能力。 She can swim fa st, 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，条件: 常用于否定句和疑问句中，此时can’t 译为“ 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。【例题】—I think Miss Gao must be in the library. She said she would go there. —No. She __be there, I have just been there. A.can’t B.mustn’t C.needn’t D.wouldn’t 【解析】根据下文“我刚去过那儿”可知，应为“ 不可能”，can’t表示推测[答案] A 2. could的用法： （1）.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。 （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。 Could you do me a favour? 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,用could提问,必须用can来回答） 3. may的用法： （1）.表示请求、许可，比can 正式 May I borrow your bike? 我可以借你的自行车吗？ You may go home now. 现在你可以回家了。 【例题】—_______ I borrow your MP3? —Sure . Here you are. tA. May B.Should C.Must D. Would 【解析】在此处表示请求，意为“ 做……可以吗”。答案：A

情态动词 （一）情态动词的定义: 情态动词表示说话人对某一动作或状态的态度。 （二）情态动词的特点 1. 情态动词有一定的词义。 2. 情态动词不能单独做谓语，它必须和其他动词的原形一起构成谓语。 3. 情态动词没有人称，数的变化。 （三）情态动词的结构和意义 1.情态动词的基本句型 ?肯定句：主语+情态动词+动词原形+...... ?否定句：主语+情态动词+not+动词原形+...... ?疑问句：情态动词+主语+动词原形+...... 2. 情态动词的意义 must“必须”；can/could“能，会”；may/might “可以”；should“应该”； would“愿，要”；have to“不得不”；need“需要” （四）情态动词的基本用法 1.can (could主要指过去时间) 1）表示人或物本身所具有的能力，意为“能，能够，会” : Two eyes can see more than one. / I can swim very well. 2）表示可能（理论上或是逻辑判断上） He can’t (couldn’t) have enough money for a new car. 3）表示允许： Can I have a look at your new pen? He asked whether he could take the book out of the reading-room. 4）表示对现在动作或状态的猜测，主要用于否定句和疑问句中或感叹句中: He can’t (couldn’t) be over sixty.他不可能超过六十岁。 5）could表示比can更委婉客气的提出问题或陈述看法，指的是现在时间。 Can (Could) you lend me a hand? 帮我一把好吗？ 2. may (might) 1）表允许，询问或说明一件事可不可以做，might指过去时间；但在疑问句中might也可指现在时间，语气比may更委婉。 May (Might) I ask for a photo of your baby? 我可以要一张你宝宝的照片吗？ 在回答以may引起的问句时，肯定回答是一般可仍用may,或Yes, please. / Certainly./Sure./Of course. ； 否定回答根据说话人的语气由强到弱分别选用: must not(mustn’t)（禁止）/ had better not（最好别）/ may not（不行） 2) may表可能,但所表示的可能性不如can所表示的那样肯定。might可以指过去时间，也可以指现在时间，但语气更加不肯定。 He may be at home. 他可能在家。 They might be having a meeting, but I’m not sure.他们有可能在开会，不过我不肯定。 3. must（have to表示客观需要） 1）表示“必须”（主观看法）时，用于肯定句或疑问句；用于否定句时表示“禁止”。 We must do everything step by step. 我们一切都必须循序渐进地做。 You must get home before 9:00. 2）表示揣测。意为“想必、准是、一定”等，只用于肯定句。 He must be ill. He looks so pale. 他准是病了。他的脸色苍白。 3)must的疑问句，肯定回答用must，否定回答用needn’t或don’t have to。 4. should 1）表责任或义务，意为“应该”，用于各种人称。

常见情态动词讲解 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?

一、选择题 1．I see the blackboard. I need to have my glasses. A．can B．can’t C．must D．mustn’t 2．—Have you heard about the temperature of the earth will rise to 59℃ in 2020?—Don’t worry! The news _______ be true. A．must not B．may not C．needn’t D．will not 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．(2018·山东临沂) Could you please speak a little louder? I ______ hear you very well. A．can’t B．mustn’t C．shouldn’t D．needn’t 5．―I didn’t pass the driving test again. ―Don't worry. Just like the weather, life be beautiful all the time. A．can't B．needn't C．shouldn't D．mustn't 6．I’ve bought a nice necklace for Jo’s birthday. She _____like it, but I’m not sure. A．can B．may be C．might D．must 7．—Is that cap Bob’s? —No, it ________ be his. His is blue. A．can’t B．mustn’t C．needn’t D．may not 8．—I can't stop smoking, doctor. —For your health, I'm afraid you ________. A．must B．can C．may D．need 9．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 10．—Must I finish my homework this evening? —No,you ________.You have a three﹣day holiday. A．won't B．mustn't C．needn't 11．—______ you please tell me something about the life in Canada or America?—Sorry, I______. I don’t know either. I’m from Australia. A．Could; couldn’t B．Can; couldn’t C．Could; can’t D．Can; mustn’t 12．—Must we finish the work right now? —No, you ________. You can do it tomorrow. A．needn’t B．shouldn’t C．mustn’t D．can’t 13．One ______ easily lose his way when he visits or comes to a new place. A．may B．must C．need D．should 14．—Could you please hang out with me this afternoon? —______. I have to make a plan for Clean-Up Day.

情态动词 一、考点、热点回顾 【词汇辨析】 1.sometimes/ some times/sometime/ some time: sometimes: “有时”=at times. He is sometimes late for school. some times: “几次” I have been to Nanjing some times. sometime: “某一时刻” I bought it sometime last spring. We’ll meet again sometime next week. some time: “一段时间” We have to stay here for some time. 2. many/ much/ a few/ a little/ few/ little (1)many修饰可数名词，much修饰不可数名词；都表示许多。例如： 许多书许多牛奶 (2)a few和a little都表示"有一点儿"，侧重于肯定，相当于"some"，但 a few修饰可数名词， a little修饰不可数名词，例如： He has a few friends in London. ---Would you like some coffee? ---Yes, just a little. (3)few和little表示"几乎没有"，侧重否定。few后接可数名词，little后接不可数名词。例 如： He is a strange man. He has few words. Hurry up, there is little time left. 【固定搭配】加-ing be busy doing sth.忙于做…… eg: Mother is busy cooking. look forward to + doing sth. 期待做…… eg: Tom l ooks forward to seeing his father again. Thank you for (doing) sth. 为了…感谢你 eg: Thank you for your help. have fun doing sth愉快地做某事 eg: I had great fun playing in the water. =have a good time doing sth eg: I had a good time playing in the water. have problem/trouble/difficulty (in)doing sth.做某事有困难 eg: I have difficulty finishing my homework in 2 hours. 【情态动词】又叫情态助动词。它们具有以下特点： ⑴　它们必须与其他动词连用，即：情态动词＋动词原形 表示说话人对所述动作的看法，如需要、可能、意愿或怀疑等。 ⑵绝大多数情态动词没有人称和数的变化，即第三人称单数不加-s （以be和have 开头的情态动词短语除外）。 ⑶　在意义上，情态动词具有“多义性”。 例：can既可表示能力，又可表示可能、允许等意义。 【情态动词的基本用法】

初中英语情态动词用法归纳 话题：动词情态教育学习 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。考点一：can，may，must 等情态动词在陈述句中的用法：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。（3）.表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t译为“不可能”。如：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。【例题】—I think Miss Gao must be in the library. She said she would go there.—No. She __be there, I have just been there. A.can’t

B.mustn’t C.needn’t D.wouldn’t【解析】根据下文“我刚去过那儿”可知，应为“不可能”，can’t表示推测[答案] A2. could 的用法：（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 favour?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. may的用法：（1）.表示请求、许可，比can正式，如：May I borrow your bike?我可以借你的自行车吗？You may go home now.现在你可以回家了。【例题】—_______ I borrow your MP3?—Sure . Here you are.A. May B.Should C.Must D. Would【解析】在此处表示请求，意为“做……可以吗”。答案：A(2) .表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。如：It may rain tomorrow .明天可能会下雨。She may be at home.她可能在家呢.(3) .may的过去式为might，表示推测时。可能性低于may。如：He is away from school. He might be sick.他离开学校了，可能是他生病了。(4) .表示希望、祈求、祝愿，常可译为“祝愿”。通常是用may +主+V例如：May you have a good time.祝你过得愉快。May you be happy!祝你幸福！May you succeed！祝你成功！4. must的用法：(1).must表示主观看法，意为“必须、一定”。如：You must stay here until I come back.

情态动词专项练习 一．选择题 1.It is usually warm in my hometown in March, but it be rather cold sometimes. A.must B. can C. should D. would 2.You be hungry already ----- you had lunch only two hours ago! A.wouldn’t B. can’t C. mustn’t D. needn’t 3 ----- What do you think we can do for our aged parents? ---- You do anything except to be with them and be yourself. A. don’t have to B. oughtn’t to C. mustn’t D. can’t 4.John promised his doctor he not smoke. And he has never smoked ever since. A.might B. should C. could D. would 5.What a pity! Considering his ability and experience, he better. A.need have done B. must have done C. can have done D. might have done 6.Liza well not want to go on the trip ---- she hates traveling. A. will B. can C. must D. may 7.She have left school, for her bike is still here. A. can’t B. wouldn’t C. shouldn’t D. needn’t 8.According to the air traffic rules, you switch off your mobile phone before boarding. A.may B. can C. would D. should 9.---- I can’t find my purse anywhere. --------- Y ou have lost it while shopping. A.may B. can C. should D. would 10.---- I’m sorry. I at you the other day. --------- Forget it. I was a bit out of control myself. A.shouldn’t shout B. shouldn’t have shouted C. mustn’t shout D. mustn’t have shouted 11.---- What sort of house do you want to have? Something big? ---- Well, it be big ----- that’s not important. A.mustn’t B. needn’t C. can’t D. won’t 12 ------ W hat 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 13.Some aspects of a pilot’s job be bring; and pilots often work at inconvenient. A.can; have to B. may; can C. have to; may D. ought to; must 14.My MP4 player isn’t in my bag. Where I have put it? A. can B. must C. should D. would 15.The weather turned out to be fine yesterday, I the trouble to carry my umbrella with me. A.should have taken B. could have taken C. needn’t have taken D. mustn’t have taken 16.In crowded places like airports and railway stations, you take care of your luggage. A.can B. may C. must D. will 17.---- She looks very happy. She have passed the exam. ------- I guess so. It’s not difficult after all. A.should B. could C. must D. might 18.I told your friend how to get to the hotel, but perhaps I have driven her there. A.could B. must C. might D. should 19.---- Mr. Gordon asked me to remind you of the meeting this afternoon. Don’t f orget it! ----OK, I . A.won’t B. don’t C. can’t D. needn’t 20.---- How is your tour around the North Lake? Is it beautiful? ------- It be, but it is now heavily polluted. A.will B. would C. should D. must 21.The biggest problem for most plants, which just get up and run away when threatened, is that animals like to eat them. A. shan’t B. can’t C. needn’t D. mustn’t 22.---- Where is my dictionary? I remember I put it here yesterday. -------- You it in the wrong place. A.must put B. should have put C. might put D. might have put