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. can 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 cant be at home.He cant 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 cant4）比

2、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 cant.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.

3、 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 dont ./ Youd better not. / No, you mustnt.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 mig

4、ht be having a meeting, but Im 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 exercisebooks now? 我们现在就要交练习本吗？-No, you neednt. / No, you dont have to. 不必。（这种情况下，一般不用mustn

5、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。Shes 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. could2. -_ I download the article again？ -No，you need

6、nt.A. Shall B. Will C. Must D. Can3. -Can you go skating with us this afternoon？-Sorry， I cant. I _ take care of my little sister at home.A. can B. may C. would D. have to4. -Must I hand in my exercise book today？ -No， you _.A. cant B. neednt C. mustnt D. wont5. -May I have a word with you？ -No， you

7、 _. Im busy today.A. neednt B. wouldnt C. dont have toD. cant6. -_I have your English name， please？ -Yes， Helen. H-E-L-E-N.A. Must B. May C. Will D. Need7. -Who is the boy over there？ Is it John？-No， it _ be him. John is much taller.A. mustnt B. may not C. cant D. neednt8. -Can you play Frisbee， Jay

8、？-Yes， I _. Its easy.A. must B. can C. need D. may9.-You must come back every month. -Yes， I _.A. will B. must C. should D. can10. She _ know the answer， but Im not sure.A. maybe B. may be C. may D. must11. - Must we clean the room right now？ - No， you_. You _clean it after lunch.A. neednt；may B. ne

9、ednt;must C. Mustnt； can D. mustnt；may12. John_ come to see us tonight， but he isnt very sure yet.A. may B. can C. has to D. must13. Children _ play with fire.A. mustnt B. cant C. shouldnt D. neednt14. -_ I come in， Mr Green？ -Yes,come in， please.A. Must B. Need C. Will D. May15. -Must I finish the

10、work today？ -No， you _. You _ finish it tomorrow.A. mustnt； may B. cant； can C. neednt； may D. neednt； must1 ( ) 1 John_ come to see us tonight, but he isnt 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(

11、) 3 -May I take this book out? -No, you_. A. cant B. may not C. neednt D. arent( ) 4 You_ go and see a doctor at once because youre got a fever. A. can B. must C. dare D. would( ) 5 -Can you speak Japanese? -No, I_. A. mustnt B. cant C. neednt D. may not2( ) 1 -He_ be in the classroom, I think.-No,

12、he _ be in the classroom. I saw him go home a minute ago. A. can; may not B. must; may not C. may; cant D. may; mustnt( ) 2 -Shall I get one more cake for you, Dad?-Thanks, but you_, Ive had enough. A. may not B. must not C. cant D. neednt( ) 3 Even the top students in our class cant work out this p

13、roblem, so it_ be very difficult. A. may B. must C. can D. need( ) 4 He isnt 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. Do3 ( ) 1 The children_ play football on the road.A. cant B. can C. mustnt D. must( ) 2 You _ be late for sc

14、hool again next time.A. mustnt B. neednt C. dont have to D. dont need to( ) 3 -Must I do my homework at once?-No, you_. A. neednt B. mustnt C. cant D. may not4( ) 1 His arm is all right. He_ go and see the doctor.A. has not to B. dont have to C. havent to D. doesnt have to( ) 2 He had to give up the

15、 plan, _ he?A. did B. didnt C. does D. doesnt( ) 3 They had to walk here, _ they?A. mustnt B. did C. didnt D. hadnt5 ( ) 1 He had better stay here, _ he?A. didnt B. dont C. hadnt D. isnt( ) 2 Youd better_late next time.A. not to be B. not be C. wont be D. dont be( ) 3 Youd better _ your hair _ once

16、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 not6( ) 1 -Shall we go and visit the History Museum next Sunday? A. Here you are B. Sorry, I cant C. Yes, plea

17、se D. Let me try( ) 2 -Why dont you ask Mike to go with us? -Thanks, _. A. I will B. I wont C. lean D. I may( ) 3 -_ I take the newspaper away?-No, you mustnt. 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. Should

18、 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. Id like B. I want C. Id like to D. I do8 ( ) 1 You_ worry about your son. He will get well soon. A. neednt B. cant C. mustnt D. have to( ) 2 The poor man needs

19、 our help, _ he?A. need B. neednt C. does D. doesnt( ) 3 -Must we do our homework first?-No, you_. You may have a rest first. A. mustnt B. neednt C. may not D. cant1.ADABB 2.CDBCA 3.CAA 4.DBC 5.ABCC6.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

20、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 neednt 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neednt.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cant或may not来回答。6. B.这组对话的意思