高中英语 Unit 1 Festivals around the world语法探究 新人教版必修3.doc

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1、Unit 1 Festivals around the world语法探究Teaching aims: Grasp the usages of some modal verbs and use them freely课前自学（ SB P5-6 Discovering useful structures）语法知识精讲 can表示“能力；许可；可能性”。表示“可能性”时指的是理论上的可能性。不表示某事实际发生的可能性或真实性。例如：A computer cant think for itself; it must be told what to do.电脑不具备独立思考的能力。I should h

2、ave been there, but I could not find the time.You can come any time you like.Anybody can make mistakes.表达某事实际发生的可能性时用may, could或might等。We may spend our summer holidays in Hangzhou this year.“Are you coming to Jeffs party?” “Im not sure. I might go to the concert instead.”could/might 用来表示请求允许或许可时,语气比

3、can/may委婉,但在答语中不能用could/might.如:-Could I use your telephone?-Yes, you can.当表示过去成功地做了某事时,要用was/were able to, 而不能用could.如:The fire spread through the hotel very quickly but everyone was able to get out.大火很快蔓延了整个旅馆, 但全体人员都脱离了危险.It was a holiday and the children were able to go to the seaside.mustnt 表“禁

4、止,不准”;cannot 表“不可能; 拒绝”; need not 表“不必要”; may not 表“可能不”.You mustnt play with the knife, you may hurt yourself.“Will you stay for lunch?” “ Sorry, I cant. My brother is coming to see me.”“Is John coming by train?” “ He should, but he mat not. He likes driving his car.”“ Shall I tell John about it?”

5、“No, you neednt. Ive told him already.”may用于征求对方许可， shall用于征求对方的意见或指示。May I have a look? 我能看一下吗？Shall I have a look? 要我看一下吗？shall用来征求对方意见时用于第一、三人称。当表示说话人的命令、警告、强制、允诺、威胁或决心等时用于第二、三人称。Shall she go to the concert with us this evening? （征求意见）You shall go to the front at once. （命令）Dont worry. You shall g

6、et the answer this very afternoon. （允诺）He shall be sorry one day. I tell you. （警告）Nothing shall stop us from fighting against pollution. （决心）should除表示必要或义务外，还可以表示比较肯定的推测或可能性。-When can I come for the phone? I need them tomorrow afternoon.-They should be ready by 12: 00.The old man is always hunting t

7、he lions, so terrible things should happen to him.ought to与should一般可以互换，但是should谈的是主观看法，ought to则更多反映客观情况，在谈到法律、义务和规定时使用。另外，should还有“一旦，万一；竟然”之意，而ought to则无此意。 We should / ought to help each other and learn from each other in our work. She is your mother, so you ought to support her. We ought to go

8、and see Mary tomorrow, but I dont think we will. You cant imagine that a well-behaved gentleman should be rude to a lady.语法同步练习1. Write to me when you get home.AI must BI shouldCI willDI can2. Mr. Bush is on time for everything. How it be that he was late for the opening ceremony?AcanBshouldCmayDmus

9、t3. Is John coming by train?He should, but he not. He likes driving his car.AmustBcanCneedDmay4. I heard they went skiing in the mountains last winter.It true because there was little snow there.Amay not be Bwont be Ccouldnt beDmustnt be5. I hear that youve got a set of valuable Australian coins. I

10、have a look?Yes, Certainly.ADo BMayCShall DShould6. It has been announced that candidates remain in their seats until all the papers have been collected.Acan Bwill Cmay Dshall7. Oh, Im not feeling well in the stomach, I so much fried chicken just now.Ashouldnt cut Bmustnt have eatenCshouldnt have ea

11、tenDmust have8. I am going to Shanghai on business next week. Have you anything to your parents?Ataking Bto take Ctaken Dto be taken9. Mr. white is in hospital.Im sorry to hear that. No wonder I him these days.Ahavent seen Bdidnt see Cwould not see Dwont see10. We cant think of ourselves only. We sh

12、ould think of we can do more for the people.Athat Bwhich Cwhat Dhow11. The film is not as popular as .Abeing expectedBhaving been expectedCexpectedDexpecting12. leaves the room last ought to lock the door.AAnyone BThose whoCWhatDWhoever13. In order to improve English 。AJennys father bought her a lot

13、 of tapesBJenny bought a lot of tapesCa lot of tapes were bought by JennyDa lot of tapes were bought by Jennys father14. Do let your father know all the truth. He appears everything.Ato tell Bto be toldCto be tellingDto have been told15. Why was professor Smith unhappy?The theory he stuck to wrong.A

14、was proved Bproved Cproving Dbeing proved16. If there were no exams, we should have at home.Aa more happier timeBthe happiest timeCmuch happiest timeDa much happier time17. When I got back home I saw a message pinned to the door “Sorry to miss you”Ato read Breading Creads Dread18. Your teacher is al

15、ready here.Oh, I he until tomorrow.Adidnt think, will come Bdont think, is comingCthought, wasnt comingDdidnt think, was coming19. Did anyone know the truth?.ANone BNo CNo one DNot anyone20. Bob! You on the phone.Aare wanted; ComingBare called; Ill comeCare needed; Im comingDare rung up; Thanks21. I

16、t is the ability to do the job matters, not where you come from or what you are.Aone Bthat Cwhat Dwhich22. Why do you want a new job youve got such a good one already?AthatBwhereCwhenDwhich23. He liked the painting so much he would like to take it it coast.Ahow much BwhatChowever much Dno matter how expensive24. What she said hastrue.Aturned Bturned overCturned inDturned up25. Has been used to save this steelAAll possible means, workBEvery possible means, worksCEvery possible means, work DMuch possible means, work语法同步练习1-5 CADCB 6-10 DCDAD 11-15 CDBDB 16-20 DBDBA 21-25 BCCAB 4