初中英语情态动词的基本用法讲解

1、.初中英语情态动词的基本用法讲解1. can1）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 tbe at home.He can thave 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 cant4）比较委婉客

2、气地提出问题或陈述看法。Can you lend me a hand? 帮我一把好吗？2.Could1.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. May1）表允许，可以，比can ,could 更客气委婉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

3、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。They migh

4、t be having a meeting, but I m not sure. 他们有可能在开会，不过我不肯定。3. must1）表示义务。意为“必须”（主观意志）。 Mustnt 不准We must do everything step by step.我们一切都必须循序渐进地做。You mustnt 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mus

5、tn t）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。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. canB. mayC. mustD. could2.-_ I download the article again ？-No ， yo

6、u needn't.A. ShallB. WillC. MustD. Can3.-Can you go skating with us this afternoon ？-Sorry， I can't. I _ take care of my little sister at home.A. canB. mayC. wouldD. have to4.-Must I hand in my exercise book today？-No ， you _.A. can't B. needn'tC. mustn'tD. won't5.-May I have

7、 a word with you ？-No ， you _. I'm busy today.A. needn't B. wouldn'tC. don't have toD. can't6.-_I have your English name ， please？-Yes， Helen. H-E-L-E-N.A. MustB. MayC. WillD. Need7. -Who is the boy over there ？ Is it John ？ -No ， it _ be him. John is much taller.A. mustn't B

8、. may notC. can'tD. needn't8. -Can you play Frisbee ， Jay？ -Yes， I _. It's easy.A. mustB. canC. needD. may9.-You must come back every month. -Yes ， I _.A. willB. mustC. shouldD. can10.She _ know the answer ， but I'm not sure.A. maybe B. may beC. mayD. must11.- Must we clean the room

9、right now ？- No ， you_. You _clean it after lunch.A. needn't； mayB. needn't;must C. Mustn't ； canD. mustn't ； may12.John_ come to see us tonight， but he isn't very sure yet.A. mayB. canC. has toD. must13.Children _ play with fire.A. mustn't B. can'tC. shouldn'tD. need

10、n't14.-_ I come in ， Mr Green ？-Yes,come in， please.A. MustB. NeedC. WillD. May15.-Must I finish the work today ？-No ， you _. You _ finish it tomorrow.A. mustn't ； mayB. can't； canC. needn't； mayD. needn't； must1() 1 John_ come to see us tonight, but he isn't very sure yet.A.

11、 may B. can C. has to D. must() 2 They _ do well in the exam.A. can be able to B. be able toC. can able toD. 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.

12、dare D. would() 5 -Can you speak Japanese?-No, I_.A. mustn't B. can't C. needn't D. may not2() 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 mo

13、re 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. s

14、hall C. must D. has to( ) 5 _ I take this one?A. May B. Will C. Are D. Do3() 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'tC. don't have to D. don't need to( ) 3 -Must I do my ho

15、mework at once?-No, you_.A. needn't B. mustn't C. can't D. may not4() 1 His arm is all right. He_ go and see the doctor.A. has not to B. don't have toC. 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 ha

16、d to walk here, _ they?A. mustn't B. did C. didn't D. hadn't5() 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

17、.A. had; cut B. had; cuttedC. 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 not6() 1 -Shall we go and visit the History Museum next Sunday?A. Here you are B. Sorry, I can't C. Yes, please D. L

18、et 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; must7 () 1 Excuse me. _ you please pass me that cup?A. Do B. Shoul

19、d 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 do8 () 1 You_ worry about your son. He will get well soon.A. needn't B. can't C. mustn't D. have to()

20、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.ADABB2.CDBCA3.CAA4.DBC5.ABCC6.CAB7.CCC8.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？ "

21、" 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，

22、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？ ""