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 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 cant 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 cant.I am busy. 3. May 1）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。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 might be having a meeting, but Im 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”。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。 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. could 2. -_ I download the article again？ -No，you neednt. A. Shall B. Will C. Must D. Can 3. -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 to 4. -Must I hand in my exercise book today？ -No， you _. A. cant B. neednt C. mustnt D. wont 5. -May I have a word with you？ -No， you _. Im busy today. A. neednt B. wouldnt C. dont have toD. cant 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. mustnt B. may not C. cant D. neednt 8. -Can you play Frisbee， Jay？-Yes， I _. Its 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 Im 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. neednt；may B. neednt;must C. Mustnt； can D. mustnt；may 12. John_ come to see us tonight， but he isnt very sure yet. A. may B. can C. has to D. must 13. Children _ play with fire. A. mustnt B. cant C. shouldnt D. neednt 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. mustnt； may B. cant； can C. neednt； may D. neednt； must 1 ( ) 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 ( ) 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 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; 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 problem, 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. Do 3 ( ) 1 The children_ play football on the road. A. cant B. can C. mustnt D. must ( ) 2 You _ be late for school 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 not 4( ) 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 plan, _ he? A. did B. didnt C. does D. doesnt ( ) 3 They had to walk here, _ they? A. mustnt B. did C. didnt D. hadnt 5 ( ) 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 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 cant C. Yes, please 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; 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. Id like B. I want C. Id like to D. I do 8 ( ) 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 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. cant 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 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 。 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cant. 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cant. 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.neednt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。mustnt千万不，绝不能，一定不要；cant不能；shouldnt不应该；neednt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neednt，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