初一情态动词的讲解与练习.doc

情态动词一、 定义：情态动词必须搭配动词原形一起构成谓语。情态动词没有人称和数的变化。二、 考点：情态动词的用法和词义辨析，由情态动词引导的一般疑问句的回答。三、种类：情态动词词义否定形式词义can能够，会cant不能，不会could能够，会couldnt不能，不会may可以，可能must必须mustnt 不允许，不能shall将，要should应该shouldnt不应该need需要neednt不必would将会，愿wouldnt不会，不愿四、用法及主要句型：1. can 表示“能，会，可以”。Can you play basketball? 表猜测，常用于否定句或疑问句，即cant，表“一定不是”。Li Hua cant be in the classroom.回答：Yes, can. No, cant.Can I help you? Yes, please. / No, thanks.Can I borrow your book?-Yes, of course.Can I write on the book? -No, you cantmustnt. Could Can you help me?- Yes,of course.Certainly. Sure. Could Can you tell me the way to the zoo?2. could can 的过去式I could swim when I was seven years old.could 开头的疑问句，语气比can委婉。回答： Yes, can. No, cant.（或根据语境）Could I have a drink? Yes, you can.3.may 表示推测，“可能，也许”，用于肯定句。 Eg: He may come tomorrow. 表示请求，“可以” Eg: May I borrow your book?回答：May I smoke in the room？Of course you maycanNo, you may notmustnt，cant（语气较生硬）Youd better notPlease dont4. should /shouldnt 表示征求对方意见或劝告：1) He should get up early. 2) She shouldnt play computer game too much.3)You should listen to your teacher.回答：Yes, should. No, shouldnt.5.shall用于第一人称(I, we), 1) Where shall we have dinner?2) Shall we go fishing? -All right. OK. Good idea. Shall I open the window? Shall we have lunch here?肯定回答：All right. OK. Good idea.否定回答：Sorry, I cant / I shall not.6.must 表示“必须，应该”。表示推测，常用在肯定句中，表“一定”。 Eg: There is someone knocking at the door. It must be Jim. 否定句中，mustnt 表示禁止，“不允许”。回答：肯定回答用must,否定回答用neednt =dont have to不必要7.need 需要 肯定句回答用must ,否定句回答用neednt. You neednt come to school so early.8.表示征求对方的意见，或建议。“你愿意吗”Would you like to go shopping with me? 回答 -Yes, Id love to. /Id like to. No, thank you.Would you like something to eatdrink? -Yes, Id like 练习（）1. you like some milk ? A .Would B.Could C .Can（）2.We pick the flower in the park. A.cant B.dont C.mustnt ( ) 3.We should more trees, and we shouldnt cut any trees. A.plant B.planting C.plants ( ) 4.May I have some coffee? A.Yes,you have. B.Yes,you can. C.Yes,certainly. ( ) 5.Shall we visit the factory? A.Yes,we do. B.Yes, we shall. B.All right. ( ) 6.Would you like something to eat? A.Yes,we would. B.Yes, Id like some cakes. C.Yes, of course. ( ) 7.What can I do for you? A.Yes,you can. B.No,I can do it. C. Yes，Id like some oranges.( ) 8.John_ come to see us tonight, but he isnt very sure yet.A. may B. can C. has to D. must( ) 9. They _ do well in the exam.A. can be able to B. be able to C. can able to D. are able to ( ) 10.-May I take this book out?-No, you_. A. cant B. may not C. neednt D. arent ( ) 11.You_ go and see a doctor at once because youre got a fever.A. can B. must C. dare D. would ( ) 12.-Can you speak Japanese?-No, I_. A. mustnt B. cant C. neednt D. may not( ) 13 -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 ( ) 15 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 ( ) 16 He isnt at school. I think he _ be ill. A. can B. shall C. must D. has to( ) 17 _ I take this one? A. May B. Will C. Are D. Do( ) 18 The children_ play football on the road. A. cant B. can C. mustnt D. must ( ) 19 You _ be late for school again next time. A. mustnt B. neednt C. dont have to D. dont need to( ) 21 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( )22-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( ) 23 -_ 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( ) 24 _ you like to have another try?A. Could B. Will C. Would D. Do( ) 25 -Would you like to go boating with us?-Yes, _.A. Id like B. I want C. Id like to D. I do( ) 26 You_ worry about your son. He will get well soon.A. neednt B. cant C. mustnt D. have to( ) 27 -Must we do our homework first?-No, you_. You may have a rest first.A. mustnt B. neednt C. may not D. cant4