英语：必修3_Unit2_Healthy_eating-Grammar课件(新人教版).ppt

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1、Period 4 Period 4 GrammarGrammarModal VerbsModal VerbsThe first wealth is health .The first wealth is health . 健康是人生第一财富。健康是人生第一财富。 A light heart lives long.A light heart lives long. 豁达者长寿。豁达者长寿。Early to bed and early to rise makes a man healthy , Early to bed and early to rise makes a man healthy ,

2、 wealthy and wise.wealthy and wise. 早睡早起会使人健康、富有和聪明。早睡早起会使人健康、富有和聪明。Without health no pleasure can be tasted by man.Without health no pleasure can be tasted by man. 没有健康就没有乐趣。没有健康就没有乐趣。Good health is over wealth.Good health is over wealth. 健康是最大的财富。健康是最大的财富。 WhatWhat should/shouldntshould/shouldnt w

3、e do to keep we do to keep healthy?healthy? If youd like to give advice or opinions, you can useIf youd like to give advice or opinions, you can use should/ ought to/ had better doshould/ ought to/ had better doWhatWhat oughtought wewe toto do to keep healthy?do to keep healthy? Good habits can help

4、 us to keep healthy and bad ones can cause diseases. There is a serious disease called H1N1 flu these days. It spreads easily among people in spring and autumn. The flu is a serious disease, but we dont have to be afraid of it. We can do something to prevent it. But how? We ought to keep the air fre

5、sh all the time. We ought to keep away from crowded places. Wed better drink more water every day. You should go to school right away. Its eight oclock now. He should be at work. It seems so unfair this should happen to me. You should have reminded me of the meeting. What should we do now? 表惊讶：竟然表惊讶

6、：竟然 用于第一人称疑问句，询问对方的意愿用于第一人称疑问句，询问对方的意愿 表责备，谴责表责备，谴责What kind of foodWhat kind of food mustmust we eat to be strong?we eat to be strong? must / have toMustMust I finish the task right now? I finish the task right now?Yes, you Yes, you mustmust/ you have to./ you have to.No, you No, you neednt neednt

7、/ you / you dont have todont have to. .She called me yesterday evening She called me yesterday evening but I didnt hear it.but I didnt hear it. I _ (be) asleep.I _ (be) asleep. must have been 1. -Will you stay for lunch? 1. -Will you stay for lunch? -Sorry, _. My brother is coming to see me. -Sorry,

8、 _. My brother is coming to see me. A. I mustnt B. I cant A. I mustnt B. I cant C. I neednt D. I wont C. I neednt D. I wont 2. -May I pick a flower in the garden? - _. 2. -May I pick a flower in the garden? - _. A. No, you neednt B. Not, please. A. No, you neednt B. Not, please. C. No, you mustnt D.

9、 No, you wont. C. No, you mustnt D. No, you wont. 3. You _ return the book now. You can keep it till 3. You _ return the book now. You can keep it till next week if you like.next week if you like. A. cant B. mustnt C. neednt D. may not A. cant B. mustnt C. neednt D. may not 4. John, you _ play with

10、the knife, you _ hurt yourself. 4. John, you _ play with the knife, you _ hurt yourself. A. wont ; cant B. mustnt ; may A. wont ; cant B. mustnt ; may C. shouldnt ; must D. cant ; shouldnt C. shouldnt ; must D. cant ; shouldntC B B C mustntneednt shouldnt cant表示否定的情态动词的用法表示否定的情态动词的用法: 不准不准, , 禁止禁止没必

11、要没必要 ( = dont have to )( = dont have to )不应该不应该 ( = ought not to )( = ought not to )不能，不可能不能，不可能 Could you use them to make sentences?What modal verbsmodal verbs have you learned? can/could can/could may/ might may/ might will/ wouldwill/ would shall/ should had better shall/ should had better must

12、have to need must have to need ought to ought to daredare* *can / couldcan / could 只能表示只能表示现在现在或或过去过去的能力的能力* * be able tobe able to 能用于能用于各种时态各种时态相当于相当于manage to do sth. / succeed in doing sthmanage to do sth. / succeed in doing sth. .1. 表示表示“能力能力”的情态动词的用的情态动词的用法法can, could can, could （be able tobe

13、able to）1. 1.He _ go to the party yesterday He _ go to the party yesterday evening in spite of the heavy rain.evening in spite of the heavy rain.2. Although he _swim, he _ cross 2. Although he _swim, he _ cross the river.the river.was able towas able tocantcantwas able towas able tomay / might, can

14、/ could2. 表示表示“许可许可”的情态动词的情态动词 1. -_ I go out to play, mum?1. -_ I go out to play, mum? -No, you_. You should do your homework first. -No, you_. You should do your homework first. A. Might; wouldnt B. Can; neednt A. Might; wouldnt B. Can; neednt C. Can; cant D. Need; mustnt C. Can; cant D. Need; mus

15、tnt 2. - Could I call you by your first name? 2. - Could I call you by your first name? - Yes, you_. - Yes, you_. A. will B. could C. can D. might A. will B. could C. can D. might3. 表示表示“请求请求”的情态动词的用的情态动词的用法法will / would, shall/shouldwill / would, shall/should* * 均可表示将来。均可表示将来。 过去时为过去时为 should, woul

16、d.should, would. * * will, would will, would 可表示意愿、常出现的动作可表示意愿、常出现的动作。 在疑问句中表示请求和建议在疑问句中表示请求和建议. .must, could , may, might, cant4.表示表示“推测，可能性推测，可能性”的情态动词的情态动词 can 表示推测时，只能用在表示推测时，只能用在否定句或疑问句中否定句或疑问句中。Its so late. Can Tom be reading?这么晚了，汤姆还在看书吗？这么晚了，汤姆还在看书吗？这个人不可能是玛丽，这个人不可能是玛丽， 她生病了。她生病了。It couldnt

17、be Mary. She had fallen ill.情态动词能表示时态吗？1. 1. 表示对现在的推测表示对现在的推测2. 2. 表示对过去的推测表示对过去的推测3.3.表示对将来的推测表示对将来的推测表示推测表示推测情态动词的重要用法情态动词的重要用法肯定的推测肯定的推测可能的推测可能的推测否定的推测否定的推测疑问的推测疑问的推测must 对将来对将来 对现在对现在 对过去对过去情态动词情态动词may, might cant, couldntcan, could + V. + V. + have done常见常见must be + be doing + V. + V. + have do

18、ne + be doing 可以用可以用not表示表示“可能不可能不” +V. + V. + have done + be doing+ V. + V. + have done + be doingYou look tired. You _ go to bed now.You look tired. You _ go to bed now.should You _ believe everything you You _ believe everything you read on the Internet.read on the Internet.shouldnt/cantMy mother

19、 cooked a lot My mother cooked a lot of food for me. She hasof food for me. She hasbeen cooking all the morningbeen cooking all the morning. .She She mustmust be tired now. be tired now.I have just eaten a lot of food for lunch.I have just eaten a lot of food for lunch.You You cantcant be hungry now

20、. be hungry now. My house is near the railway.My house is near the railway. It _ be noisy there.It _ be noisy there. mustmust The old restaurant The old restaurant _ be very good. _ be very good. Its always full of Its always full of people.people. The new restaurant The new restaurant _ be very goo

21、d. _ be very good. Its always empty.Its always empty. must cant Where is Jane?Where is Jane?Perhaps she is reading newspapers.Perhaps she is reading newspapers. =She _ (read) =She _ (read) newspaper.newspaper. may be reading In China, many children _ wear uniform In China, many children _ wear unifo

22、rm when they go to school.when they go to school.have to Dont tell anybody what I said. You _ keep Dont tell anybody what I said. You _ keep it a secret.it a secret.must The floor is clean. You _ sweep it.The floor is clean. You _ sweep it.neednt The floor is clean. You _ swept it.The floor is clean

23、. You _ swept it.must haveI promised I would be on time. I promised I would be on time. I _ be late.I _ be late.couldnt Last night Paul became ill suddenly. Last night Paul became ill suddenly. We _ call the doctor.We _ call the doctor.had to We cant repair the car ourselves.We cant repair the car o

24、urselves.We _ take it to a garage.We _ take it to a garage.have to I can manage the shopping alone. You I can manage the shopping alone. You _ come with me._ come with me.neednt That is an important book. That is an important book. You _ keep it well.You _ keep it well.must Excuse me, _ you tell me

25、the way to the Excuse me, _ you tell me the way to the railway station, please?railway station, please?could You are carrying a lot of things. You cant open You are carrying a lot of things. You cant open the door yourself. Theres a man standing near the door yourself. Theres a man standing near the

26、 door. You say to him:the door. You say to him:_ you open the door, please?_ you open the door, please?Could _ you like a cup of coffee?_ you like a cup of coffee?Would 1. By lunchtime they would all be sold. 2. His restaurant ought to be full of people.3. What could have happened?4. Nothing could h

27、ave been better.5. Something terrible must have happened.6. I will take all that fat off you in two weeks. 7. He could not believe his eyes.8. He wondered if he should go to the library to find out.9. He couldnt have Yong Hui getting away with telling people lies.10. He had better do some research.1

28、1. After eating in the restaurant people would become fired very quickly.A.A.Intention B. Duty C. Promise Intention B. Duty C. Promise D. Possibility E. GuessingD. Possibility E. Guessing(D)(D)(E)(A)(B)(A)(B B)(D)(C)(D)(D)1. I thought you1. I thought youlike something to read, like something to read

29、, so I have brought you some books.so I have brought you some books.A may B. mightA may B. mightC. canC. canD. mustD. must 2.You2.Youto the meeting this afternoon if to the meeting this afternoon if you have something important to do.you have something important to do.A. neednt to comeA. neednt to c

30、ome B. dont need come B. dont need come C. dont need coming D. neednt comeC. dont need coming D. neednt come 3.He3.Heyou more help, even though he was you more help, even though he was very busy.very busy. A. might have given A. might have given B. might give C. can have given D.mayB. might give C.

31、can have given D.may give give 4.-4.-I help you with some shoes,madam?I help you with some shoes,madam?-Yes, I would like to try on those brown ones-Yes, I would like to try on those brown ones. .A. WillA. WillB. Should C. MayB. Should C. MayD. MustD. Must 5.The reason why they 5.The reason why they

32、 leave wasnt leave wasnt explained to us.explained to us.A.hadA.hadB. had to C. must D. mightB. had to C. must D. might 6.I searched for my wallet and it wasnt 6.I searched for my wallet and it wasnt there. I thought Ithere. I thought Iit at home.it at home.A.left B. have left A.left B. have left C.

33、might have left D. can have leftC.might have left D. can have left 7.I 7.I _ asleep because it took me a long asleep because it took me a long time to realize that the telephone was time to realize that the telephone was ringing.ringing.A.A.could have fallen could have fallen B. should have fallenB.

34、 should have fallenC. must have fallen D. mustnt have fallenC. must have fallen D. mustnt have fallen 8.The only thing that really matters to the children is how 8.The only thing that really matters to the children is how soon they soon they _ return to their school. return to their school. A. canA.

35、 canB. must C. have to D. ought toB. must C. have to D. ought to 9.I want to go to Marys, but you _ go with me.9.I want to go to Marys, but you _ go with me. A. need not B. must not C. need D. mustA. need not B. must not C. need D. must10.What we 10.What we _get seems better than what we have.get se

36、ems better than what we have. A. can B. couldA. can B. couldC. cantC. cantD. couldntD. couldnt11.-My goodness! Ive just missed the train. 11.-My goodness! Ive just missed the train. -Thats too bad. I am sure you_-Thats too bad. I am sure you_ it, if you had hurried.it, if you had hurried. A.A. could

37、 have caught B. had caughtcould have caught B. had caught C. would catch C. would catch D. could catchD. could catch 12.Look! What youve done! You 12.Look! What youve done! You more careful. more careful. A.A.may be B. had tomay be B. had toC. should have been C. should have been D. would beD. would

38、 be13._I repeat the question?13._I repeat the question? A.A.Shall Shall B.B.Will Will C.C.Do you want that Do you want that D. DoD. Do1 1.There were already 5 people in the car,.There were already 5 people in the car,but they managed but they managed to take me as well. to take me as well. It It a c

39、omfortable journey.a comfortable journey.A. A. cant becant be B.B.shouldnt beshouldnt beC.C.couldnt have been D.couldnt have been D.mustnt have beenmustnt have been 1 1.Tom ought not to .Tom ought not to _ _me your secret, but he meant no harm.me your secret, but he meant no harm.A.A.have told have

40、told B.B.tell tell C.C.be telling D.be telling D.having toldhaving told .I parked my car right here but now its gone.It .I parked my car right here but now its gone.It . .A.A.must be stolenmust be stolen B.B.may be stolenmay be stolenC.C.must have stolen D.must have stolen D.must have been stolenmus

41、t have been stolen .He .He the work yesterday,but he didnt.the work yesterday,but he didnt.A.A.must have finished B.must have finished B.need finish need finish C.C.finishedfinished D.D.should have finishedshould have finished .He did not pass the examination. As a good student,.He did not pass the

42、examination. As a good student,hehe. . A.A.mustnt have failed mustnt have failed B.B.may not have failed may not have failed C.C.neednt have failed D.neednt have failed D.shouldnt have failedshouldnt have failed 1 SAM: How can I grow thinner, Mum?MUM: Well, you _ eat food with plenty of fibre that h

43、elps you digest better. And you_ stop drinking cola or eating sweet food.SAM: Does it mean I_ eat. my favourite fried chicken any more? MUM: Not exactly, if you love fried chicken, you _ give it up. Just eat it less often. You_ worry too much: a little fried chicken_ do you good!have to should shoul

44、dnt neednt dont have to will 2 DOCTOR: You are sick because youve eaten poisonous mushrooms. Where did you get them? LUCY: I picked them in the forest. I know we_ eat fresh vegetables. DOCTOR: Oh, you_ eat them until youre sure they are not poisonous. LUCY: Thank you, doctor. Ill be more careful next time. 3 CHARLES: I wish I could see things clearly in the dark. TOM: Eating carrots_ help you see better. You_ eat some every day.have tomustntought toshould