初一英語：情態(tài)動詞can,must,may的用法

1、授課時間:教學目標情態(tài)動詞 can, must, may的用法重點、難點掌握三個情態(tài)動詞的用法考點及考試要求掌握情態(tài)動詞的用法并能靈活運用備課時間:教學內容Step 1: homework check ing and dictati onStep 2:情態(tài)動詞一、概念：情態(tài)動詞是一種本身有一定的詞義，表示說話人的情緒、態(tài)度或語氣的動詞，但不能單獨作 謂語，只能和其他動詞原形構成復合謂語，沒有人稱和數(shù)的變化。情態(tài)動詞數(shù)量不多，但用途廣泛，主要有：can (could), may (might), must, need, ought to, dare (dared), shall (should)

2、, will (would).二、can/could1.表示能力(如體力和腦力方面)，意為“能、會”學員編號: 學員姓名:年 級：初一 輔導科目：英語課時數(shù)及課時進度: 學科教師：學科組長/帶頭人簽名及 日期情態(tài)動詞Can you speak Chin ese?Can you play basketball?2.表示請求或者允許，多用在口語中，意為“可以、能”等客觀條件的允許。用于疑問句中用來提出要 求，用于否定句中表示不允許。Can you help me?You cantplay the computer3.表示可能，理論上的可能。He can be out now.It can bu s

3、unny all the time.4.表示說話人的猜測、懷疑、不肯定等，主要用于否定句、疑問句、感嘆句中，帶喲感情色彩。How can yo be so rude!Can he be back?5. could可以作為can的過去式，也可以在提出請求時表示委婉。He could save the little boy.Could you help me?三、may, might1.表示“許可、準許”，此時與can同義，可以互換使用You may/ca n go to the cin ema this eve ning.注意：表許可時其答語可以用“ Yes,you may.但是由于用may做肯

4、定回答語氣顯得生硬、嚴肅，因此 一般用Yes, please. /Certainly. / Of cours這些回答顯得熱情、客氣。拒絕對方時，其答語可以用 No, you must nt. / No, you cant. / Sorry, you can / No, please do n等-May I come in? -Yes, please-May I use your ruler?-Certai nly. Here you are.2.表示可能性時，常用在肯定句中，意為“可能、也許”He may be very busy now.He said that she might not

5、be at work today.3. can和may都可以表示推測。Can通常用在否定句和疑問句中，may通常用在肯定句和否定句中。雖然兩者都可以用于否定句，但是程度不同，cant的語氣比may not更強。It can be true.It may not be true.4.表示希望、祈求、祝愿，常可以譯為“祝愿”May you have a good time.May you be happy.5. might可以作為may的過去式，也可以在提出請求時表委婉；在表示可能性時，might的可能性比may更小注意：can和may的區(qū)別1. can和may都可以表示“許可”，在征求對方意見時

6、用 may比較多May I go now?2.在詢問客觀上是否可以時，用 canCan we take the books out?3.在兩者都可以用時，may更客氣一些4.在陳述句中用can比較多You can sit here.5. can還可以表示能力，may無此用法6.在否定句中一般不用 may not，常用cant表示不可能He cantbe at home toni ght.四、must1.表示“必須、一定要”，多強調說話人的主觀看法（表示客觀需要時，常用 _）否定式must nt表示“一定不要，禁止”You must see the doctor.Must you go soon

7、?對于must開頭的一般疑問句，如果要做否定回答，可以用n eed nt, don have to，不能用must n -Must I come over toni ght?-No, you n eedn2.表示推測，意為“準是，一定是”，但是通常只用于肯定句，在否定句、疑問句中通常用cantIt must be true.Can it be true?It can be trueStep 3： Practice一、用can, may，must的適當形式填空1. _I ask you a questi on?2. Atte nding a ball _be excit ing3. Michae

8、l _be a policema n, for he is mush too short.4. -re you coming to Jeffsparty?-Im not sure. I_go to the con cert in stead.5. He n ever takes a taxi. He_be very poor.6. I thought you_like someth ing to read, so I brought you some books.7. Look! I_sta nd on my han ds.8. He_have bee n to Sha nghai.9. Th

9、e play is not in teresti ng. I really _go now.10. She _like this place.二、根據(jù)漢語提示給出下列句子的回答1. -Must we hand in our exercise books today?_不，沒有必要）2. Can I call you by your first n ame?_是的，可以）3. Could I come here aga in tomorrow?_是的，你可以來）4. Must we send in our pla this week?_是的，必須交）5. May I use you pen?_可

10、以，給你）三、選擇1. Hele n_go on the trip with us, but she is quite sure yet.A shall B must C may D can2. Joh nny, you _play with the knife, you_hurt yourself.A won t,ca ntB must nmayC should n, must D cant, should nt3. A computer _think for itself; it must be told what to do.A cant B could ntC may notD mig

11、ht not4. -Could I borrow your dicti on ary?-Yes, of course you_.A must B might C can D could5. How _you say that you really un dersta nd the whole story if you have covered only a part of thearticle?A can B must C n eed D may6. Oh, dear! What on earth _this mean?A could B can C may D might7.-Must I

12、fin ish my homework today?-No, you _.A cantB n eed nC must ntD may not8. - _I speak to Mary? -Speaki ng.A Must B Need C May D Shall9. This match problem is too hard. Nobody_do it.A may not B may C cant D can10.-Can you speak Japa nese? -No, I _.A cantB must ntC may notD n eed nt四、在空格處填入適當?shù)脑~，一空一詞Tom:

13、 Excuese me. _you tell me the way to No. 3 Middle School?Wang Hai:_,1 m a student there. I m going to school now. You _follow me.Tom: Thank you!l m new in No. 3 Middle School. My name is Tom. _I know you name?W: Wang Hai. Why _your pare nts send you to school for the first time?T: Well, I prefer doi

14、ng things by myself. However,m lucky today. You are so helpful. Thank you!W: It a pleasure. We are schoolmates now._you please help me with my En glish?T: _!I m weak in Chinese,_you teach me Chinese?W: Sure! Letshelp each other.T: Good idea!W: By the way, how do you like Chinese traditional music?T:

15、 Very much! Erhu, dizi, and pipa sound really won derful.W: There is going to _a Chin ese traditi onal music con cert at the Capital SatdiurhVe got twotickets. Would you like to come?T: _love to . tha nks so much!W: Donmention it!Step 4： more practiceHomework一、單項選擇4. As we know, fish_die out of wate

16、r.A. may B. is going to C. can D. will5.-Can you an swer my questi on, Lily?訐es, I_.A. may B. n eed C. must D. can6.-Excuse me,_you tell me the way to the n earest bus stati on?-Sorry, I can t. I m a stranger here.A. can B. n eed C. must D. may10. After such a long jour ney, the childre n _be very t

17、ired now.A. can B. must C. have to D. n eed11. You ve made the same mistakes again. You _be manefud next time.A. can B. may C. had to D. should18.-Would you like to go swimmi ng with me this after noon?-I d love to. But I m afraid I _. I have too much work to do.A. can t. mustn t. needn t. may not19

18、. - _you like to go shopp ing with me? -Yes, I_.A. Would, would B. Will, will like C. Would, would love D. Would, would love to1. Could I call you by your first name?Yes,you_.A.will B.could C.may D.might選C,為什么不可以選 B或D2. You _walk for miles and miles among the hills without meeting anyone.A.must B.n eed C.may D.should選C,為什么不能選D,推測的可能性會大一些3.1 was nt sure whether I _offer to help or not.A.should B.might C.would D