初中英语情态动词的基本用法讲解

初中英语情态动词的基本用法讲解

1. can

2. 1）表示能力，能够，会

Two eyes can see more than one. 两只眼比一只眼看得清。

I can swim我会游泳

2）表示可能Jim went to Beijing ,so he can’t be at home.

He can’t have enough money for a new car. 他不可能有足够的钱买新车。

3）表示允许。可以

Can I have a look at your new pen? 我可以看一看你的新钢笔吗？

回答：Yes ,of course/Yes you can. No,you can’t

4）比较委婉客气地提出问题或陈述看法。

Can you lend me a hand? 帮我一把好吗？

2.Could

1.can 的过去式，能，会

I ______swim when I was three years old.

2.情态动词，--可以比can 客气，委婉

Could you help me?----Yes,of course/sorry,I can’t.I am busy.

3. May

1）表允许，可以，比can ,could 更客气委婉

2）You may take whatever you like. 你喜欢什么就拿什么。

3）He told me that I might smoke in the room. 他告诉我可以在房间里抽烟。

4）May (Might) I ask for a photo of your baby? 我可以要一张你宝宝的照片吗？

5）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.

6）/ Please don’t ./ You’d better not. / No, you mustn’t.等，以免显得太严峻或不客气。

7）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。

8）He may be at home. 他可能在家。

9）She may not know about it. 她可能不知道这件事。

10）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。

11）3. must

12）1）表示义务。意为“必须”（主观意志）。Mustn’t 不准

13）We must do everything step by step. 我们一切都必须循序渐进地做。

14）You mustn’t talk to her like that. 你不可能那样对她说话。

15）--Must we hand in our exercise—books now? 我们现在就要交练习本吗？

16）--No, you needn’t. / No, you don’t have to. 不必。（这种情况下，一般不用mustn’t）

17）2）表示揣测。意为“想必、准是、一定”等，只用于肯定句。

18）He must be ill. He looks so pale. 他准是病了。他的脸色苍白。

19）She’s wearing a diamond necklace. She must have a lot of money.她戴着钻石项链，一定很有钱。

1. -Mum， may I watch TV now？-Sure， but you ________ help me with my English.

A. can B. may C. must D. could

2. -________ I download the article again？ -No，you needn't.

A. Shall B. Will C. Must D. Can

3. -Can you go skating with us this afternoon？

-Sorry， I can't. I ________ take care of my little sister at home.

A. can B. may C. would D. have to

4. -Must I hand in my exercise book today？ -No， you ________.

A. can't B. needn't C. mustn't D. won't

5. -May I have a word with you？ -No， you ________. I'm busy today.

A. needn't B. wouldn't C. don't have toD. can't

6. -________I have your English name， please？ -Yes， Helen. H-E-L-E-N.

A. Must B. May C. Will D. Need

7. -Who is the boy over there？ Is it John？-No， it ________ be him. John is much taller.

A. mustn't B. may not C. can't D. needn't

8. -Can you play Frisbee， Jay？-Yes， I ________. It's easy.

A. must B. can C. need D. may

9.-You must come back every month. -Yes， I ________.

A. will B. must C. should D. can

10. She ________ know the answer， but I'm not sure.

A. maybe B. may be C. may D. must

11. - Must we clean the room right now？ - No， you____. You _____clean it after lunch.

A. needn't；may B. needn't;must C. Mustn't； can D. mustn't；may

12. John________ come to see us tonight， but he isn't very sure yet.

A. may B. can C. has to D. must

13. Children ________ play with fire.

A. mustn't B. can't C. shouldn't D. needn't

14. -________ I come in， Mr Green？ -Yes,come in， please.

A. Must B. Need C. Will D. May

15. -Must I finish the work today？ -No， you ________. You ________ finish it tomorrow.

A. mustn't； may B. can't； can C. needn't； may D. needn't； must

1 ( ) 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

2( ) 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

3 ( ) 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

4( ) 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

5 ( ) 1 He had better stay here, ___ he?

A. didn'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

6( ) 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

7 ( ) 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

8 ( ) 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.ADABB 2.CDBCA 3.CAA 4.DBC 5.ABCC

6.CAB 7.CCC 8.ADB

「答案与解析」

1. C.这组对话的意思是：\"妈妈，我现在可以看电视吗？\"\"当然，但你必须帮我学英语。\"该题测试情态动词的用法。表示主观上看来\"必须\"要做的事，要用must.

2. C.这组对话的意思是：\"我必须再次下载这篇文章吗？\"\"不必了。\"该题测试情态动词的用法。根据答语 No， you needn't 就能确定要选C.

3. D.这组对话的意思是：\"今天下午你能同我们一块去溜冰吗？\"\"抱歉，我不能去。我必须在家照看我小妹妹。\"该题测试情态动词的用法。表示客观上\"不得不\"做某事时，要用have to.

4. B.这组对话的意思是：\"我必须今天交作业吗？\"\"不必。\"该题测试情态动词的用法。对以must开头的问句进行否定回答时，要用needn't.

5. D.这组对话的意思是：\"我可以跟你说句话吗？\"\"不行，我今天很忙。\" 该题测试情态动词的用法。对May开头的问句进行否定回答时，通常用can't或may not来回答。

6. B.这组对话的意思是：\"我可以知道您的英文名字吗\"\"可以，海伦。H-E-L-E-N.\"该题测试情态动词的用法。\"请求对方许可\"时，常用 May I （we）…。

7. C.这组对话的意思是：\"那边的那个男生是谁？是约翰吗？\"\"那不可能是他，约翰个子高些。\"该题测试情态动词的用法。表示很肯定的否定推测时，用can't.

8. B.这组对话的意思是：\"杰伊，你会扔飞盘吗？\"\"会，小菜一碟。\"该题测试情态动词的用法。一般说来，以情态动词can开头的问句，肯定回答用can；否定回答用can't.

英语情态动词 ：

9. A.此题易误选为B或C.这是因为受了思维定势的影响引起的，因为前面句子中的must这个词，许多人就想当然地选择了B项。其实，这里应该选择A项，句意为：\"你必须每月回来一次。\"\"好的，我会的。\"

10. A.maybe是副词，意为\"可能；也许\"，在句中作状语。may be是两个不同的词，其中，may是情态动词，be是连系动词，在句中作谓语。

11. A.needn't表示\"没有必要\"；may意为\"可以\".

12. A.考查情态动词。由后文\"但他还不能肯定\"可知，他\"可能会\"来，所以选A.can表示推测的\"可能\"，多用于否定句或疑问句中，must是有把握的肯定推测，\"一定\".

13. A.考查情态动词。mustn't千万不，绝不能，一定不要；can't不能；shouldn't不应该；needn't不必要。

英语情态动词 ：

14. D.考查情态动词。请求允许用may或can.

15. C.考查情态动词。否定回答must，表示\"不必\"用needn't，排除A和B.又表示允许\"可以\"，用may或can，所以A正确。若用must与前面need