人教版高一英语情态动词Unit2 Modal verbs新课标 牛津

1、2021/8/9 星期一1GrammarUnit 2 Modal verbs2021/8/9 星期一2He can type 100 words within one minute. abilityYou must work hard to win the gold medal. necessityShe might get a ticket for the concert. possibilityYou may come in and sit down. permissionLook at following sentences, pay attention to the words in

2、red.Modal verbs2021/8/9 星期一3情态动词除了可以表示能力、必要、可能、允许外，还可表达愿望、猜测等意:Example:I will be a famous singer in the future. (wish)He must be at home now. (guess)Can you help me with my training? (request)Shall we do some exercise this morning? (suggestion)2021/8/9 星期一4情态动词不能独立作谓语，其后必加动词原形，共同构成复合谓语； Children sho

3、uld respect their parents.情态动词没有人称和数的变化； I/You/She/We can speak English.常见的情态动词有： can, could, may, might, will, would, must, have to, had better, shall, should, ought to, need, dare2021/8/9 星期一5 can & could1)表能力 can 表能力时意味着凭体力或脑力或技术等可以做。 I can climb this pole. He is only four , but he can read. Fire

4、 cant destroy gold. 2)表可能性 Can the news be true? It cant be true. What can he possibly mean? 2021/8/9 星期一63)表示允许（和may意思相近）常见于口语。 Can (May) I come in ? You cant smoke in the classroom. * Could 表过去的能力、可能和许可 （常用于间接引语） At that time we thought the story could not be true. I could swim when I was only six

5、. Father said I could swim in the river. 2021/8/9 星期一7may& might 1)表示请求、可以、允许 You may watch TV now. 2)当回答由may引起的问题时,否定答语要用 must not,表示“不许可”、“不应该”、“不行”。May I come in? ( = can )Yes, you may.No, you mustnt. 3)表建议（可和as well连用）You may as well stay where you are.2021/8/9 星期一8might 1)在间接引语中表过去的“可能”和“允许” Sh

6、e said that he might take her dictionary. 除在间接引语中外，might一般不表示过去的“可能”与“许可”。表过去的“可能”可用could，表过去的“许可” 可用were (was) allowed to2)表现在的“可能”，其可能性要比may小。Electric irons could be dangerous; they mightgive you a severe shock.2021/8/9 星期一9 must & have to 1、must 的主要用法。1)表示必须、必要 We must do everything step by step

7、.2)用 must 提问时,否定答复要用 neednt 或 dont have to 表 “不必”、“无须”的意义。 Must I go tomorrow?明天我必须去吗？ Yes, please.是的，请吧！ No , you neednt.( = dont have to ) 不，不必 must not 表示“不应该”、“不许可”、“禁止” You must not smoke here. 2021/8/9 星期一10 have to 的用法have to 的含义与 must 是很接近的,只是 have to比较强调客观需要，must 着重说明主观看法。I must clean the r

8、oom.（主观想法）Its getting late. I have to leave now.（客观需要）另外，have to 能用于更多时态：We had to be there at ten .We will have to reconsider the whole thing.have to 的否定式：dont have to do “不必做” 。You dont have to go right now. 2021/8/9 星期一11Shall & should1、shall的用法1)用于第一人称征求对方的意见，如：What shall I wear on the journey?

9、Shall we dance? 2)shall 用于第二、三人称时表允诺（现已少见）She shall get her share. 她可以得到她的一份。You shall have it back tomorrow. 你明天可以将它拿回。2021/8/9 星期一12*情态动词should一般不应被认为是情态动词 shall的过去式，主要用法有：1)用于第一人称疑问句中询问对方的意愿，但语气较委婉温和，如：What should we do now? 我们现在该怎么办？2)表示应该、必须，常与must 换用。例如：We should (must) master a foreign langua

10、ge at least.3)用于虚拟语气:It is suggested that he (should) be sent there at once.It is strange that he should say so.2021/8/9 星期一13 need & dare这两个词只能算“半情态动词”，它们作情态动词用时，一般用在否定句和疑问句中，如果用在肯定句中，多数是实义动词，一般现在时单数第三人称就要加s，并有时态变化，后接不定式时须带to, 试比较： Need I explain once more?（情态） The question needs to be discussed.（实

11、义） She dare not tell the truth to him.（情态） We should dare to think, to speak and to act. She dare not go out at night by herself.（情态） 2021/8/9 星期一14从推测角度分：可 能(1-50%)might; may; could; can很可能(6090%)should; ought to; would; will肯 定(100%)must不 可 能(0%)cant-Theres someone at the door. Didnt you hear the

12、bell?-It _ be Jack.might/may/should/must/cant 2021/8/9 星期一15Pay attention to the differences: must have done should/ought to have done neednt have done2021/8/9 星期一161.91 A computer _ think for itself ; it must be told what to do. A. cant B. couldnt C. may not D. might not 2.92-Shall we go skating or

13、 stay at home? -Which _ do yourself? A. do you rather B. would you rather C. will you rather D. should you rather3.92 Could I borrow your dictionary? Yes, of course you _. A. might B. could C. can D. should2021/8/9 星期一174.93 Peter _ come with us tonight, but he isnt very sure yet. A. must B. may C.

14、can D. will5.94 Shall I tell John about it ? No, you _ . Ive told him already. A. neednt B. wouldnt C. mustnt D. shouldnt6. 94 -Dont forget to come to my birthday party tomorrow. - _. A. I dont B. I wont C. I cant D. I havent2021/8/9 星期一187. 96 Johnny , you _ play with the knife, you _ hurt yourself

15、. A. wont , cant B. mustnt , may C. shouldnt , must D. cant , shouldnt8.97 The fire spread through the hotel very quickly but everyone _ get out . A. had to B. would C. could D. was able to 9.98When can I come for the photos ? I need them tomorrow afternoon. They _ be ready by 12:00. A. can B. shoul

16、d C. might D. need2021/8/9 星期一1910.99Will you stay for lunch? Sorry, _.My brother is coming to see me. A.I mustnt B.I cant C.I neednt D.I wont11.00Are you coming to Jeffs party ? Im not sure . I _ go to the concert instead. A. must B. would C. should D. might12.02- Is John coming by train? - He shou

17、ld , but he _ not. He likes driving his car. A. must B. can C. need D. may2021/8/9 星期一20* I thought you _ like something to read, so I have brought you some books. a, may b, might c, could d, must * There are plenty of time, she _ a, mustnt hurried b, couldnt hurried c, must not hurry d, neednt have

18、 hurried*The plant is dead. I _ it more water. a, will give b, would have given c, must give d, should have given*Where is my pen? I _ it . a, might lose b, would have lost c, should have lost d, must have lost2021/8/9 星期一21* You _ return the book now. you can keep it till next week if you like. a,

19、cant b. mustnt c, neednt d, may not*It still early, you _ a, mustnt hurry b, wouldnt hurry c, may not hurry d, dont have to hurry *Please open the window,_? a, cant you b. arent you c, do you d. will you*We _for her because she never came. a, mustnt have waited b, shouldnt have waited c, mustnt wait

20、ed d. neednt waited2021/8/9 星期一22* -May I stop here? -No, you _. a, mustnt b, might not c, neednt d, wont *Its a fine day. Lets go fishing,_? a, wont you b, will you c, dont we d, shall we*I didnt see her in the meeting room this morning. She _ have spoken at the meeting. a, mustnt b, shouldnt c, ne

21、ednt d, couldnt*“ could I borrow your dictionary?” “Yes, of course you_” a, might b, will c, can d, should2021/8/9 星期一23*-Please dont make a noise.-_. Ill be as quiet as a mouse. a. yes, I wont b. no, I wont c, no, I will d. yes, I will*The young men has made so much noise that he_ not have been allowed to attend the concert. a, could b, must c, would d, should*One ought _ for what one hasnt done. a, not to be punished b. to not be punished c, to not punished d. not be punished2021/8/9 星期一24*If you really want yourself to be in good health, you must _ always _so much