m6uit3grammar上课.ppt

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1、Unit 3 Understanding each otherGrammar and usage 虚拟语气是说话人为表达一种假设虚拟语气是说话人为表达一种假设,或一种主或一种主观愿望观愿望,即认为动词所表示的动作或状态并非即认为动词所表示的动作或状态并非真实或仅是主观设想时所用的动词形式真实或仅是主观设想时所用的动词形式.虚拟语气的定义虚拟语气的定义关键是什么关键是什么与事实相反！与事实相反！1.一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法2.名词性从句中虚拟语气的用法名词性从句中虚拟语气的用法3.几种特殊结构中虚拟语气用法几种特殊结构中虚拟语气用法4.一般条件句中虚拟语气的倒装一般条

2、件句中虚拟语气的倒装 5. 与含蓄条件句与含蓄条件句6.虚拟语气与陈述语气的判定虚拟语气与陈述语气的判定考点考点难难点点错综时间条件句错综时间条件句从从 句句主主 句句与与过去过去事实相事实相反反 与与现在现在事实相事实相反反 与与将来将来事实相事实相反反 had + done1.did2.should + do3.were to + dowould dowould dodid(be-were）would have done1. if虚拟语气could-Might/should现在：现在：If were/did , would/could/might do 1. 假如我有更多的时间，我就会学习

3、德语。假如我有更多的时间，我就会学习德语。 If I had more time，I would study German.2. 要是我象你一样年轻要是我象你一样年轻, ,我就会找时间锻炼我就会找时间锻炼. . If I wereyoung as you, I would find time to exercise. Practice:Practice:一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法If I werent addicted to QQ games,I would make greater progress in my studies.What would happen i

4、f you were not addicted to QQ game?一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法过去：过去：If had been/done, would/could/might have done1) 如果他抓紧时间，他本来能赶上那趟火车。如果他抓紧时间，他本来能赶上那趟火车。 If he had hurried, he could have caught the train.2) 如果你昨天告诉他，他也许会提些建议了。如果你昨天告诉他，他也许会提些建议了。 If you had told him yesterday, he might have made some

5、 suggestions.一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法If I _busy last night, I _ to see the film with you.had not beenwould have gone一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法If he more carefully, he the car accident yesterday. would not have had had driven 一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法将来：将来：Ifwere/did/should/were to, would/should/m

6、ight doPractice:Practice: 1) 假如我要出国，我就会去法国。假如我要出国，我就会去法国。 If I were to go abroad, I would go to France.2) 万一明天下雨，我们的运动会就推迟。万一明天下雨，我们的运动会就推迟。 If it should rain tomorrow, our sports meeting would be put off.一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法Mark: 100 If you got /were to get /should get a full mark next time,

7、I would treat you to a wonderful performance. 一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法 1)Would, could and might are often interchangeable, but with some differences in meaning.would intention; plancould ability; possibilitymight probability2) In written English or in formal situation, we usually use were in If-cl

8、auses in place of was. However, in everyday conversation, was is often used.TIPS一般条件句中虚拟语气的用法一般条件句中虚拟语气的用法条件从句 If 从句的谓语形式 主句的谓语形式现在过去将来did（were）had donewould/could/should/might +do would/could/should/might +have done1.did2.should+do3. were to dowould/could/should/might +do一般条件句中虚拟语气的用一般条件句中虚拟语气的用法法W

9、e can also put should, were and had at the beginning of an unreal conditional sentence. In this case, if is not needed any more. Please rewrite the sentences:E.g.E.g. 1)If you should make a mistake, you should not be embarrassed. Should you make a mistake, you should not be embarrassed.条件句中虚拟语气的倒装条件

10、句中虚拟语气的倒装2 ) If you had told me earlier, I would not have this problem now.Had you told me earlier, I would not have this problem now.3) If you were to take the train, you would be there much sooner. Were you to take the train, you would be there much sooner.条件句中虚拟语气的倒装条件句中虚拟语气的倒装条件句中虚拟语气的倒装条件句中虚拟语气

11、的倒装TIPS注意注意: 如果省略的条件句中的如果省略的条件句中的谓语动词是否定形式时谓语动词是否定形式时,不能用不能用动词的缩略形式动词的缩略形式.我们可以说: Were it not for the expense, I would go abroad now. 但是不能说: Werent it for E.g.E.g. _ she _ yesterday, she would meet the famous singer today.A.Hadnt; left B. Had; not leftC.If; didnt leave D. Didnt; leave 错综时间条件句错综时间条件句

12、错综时间条件句错综时间条件句If you _(study) hard before, you _(be) a college student now and you _(graduate) from a college in fours time.had studiedwould bewould graduate More practiceMore practice Fill in the blanks with the verbs given in the brackets in their proper forms. 1.You didnt let me drive. If we _ (d

13、rive) in turn, you _(not get) so tired.2._it _(not be) for your help, I couldnt have made any progress.had drivenwouldnt have gotHadnot been3. Has Mr Smith recovered now? Yes. Who_(think) that such a serious illness could be cured?4._it _(rain) tomorrow, the match would be called off.would have thou

14、ghtWere / Shouldto rain / rain5.Most of the students felt rather disappointed at the English party. They said that it _(organize) better.6.Jean doesnt want to work right away because she thinks that if _(get) a job, she probably wouldnt be able to see her friends very often.could/might have been org

15、anizedwere to get/should get/got7.Much labour would have been saved if electronic computer _ (invent) before.8. Well done, Jack！ Thanks. But given more time, I _(do) it better.had been inventedcold/would/might have doneNow here are more exercises for you to check whether you have mastered what you h

16、ave learned in this class.Please choose the correct answers to the following multiple choices.Choose the right answer:1.Everything if Albert hadnt called the fire brigade.A. will be destroyed B. will have been destroyed C. would be destroyed D. would have been destroyed 2. The business is risky. But

17、 _ , we would be rich. A. should we succeed B. we should succeed C. might we succeed D. would we succeed3. What would have happened, _, as far as the river bank? A. Bob had walked farther B. if Bob should walk farther C. had Bob walked farther D. if Bob walked farther4. I _ you some money, but I had

18、nt any on me then.A. would lend B. would have lent C. could lend D. may have lent5. _ today, he would get there by Friday. A. Was he leaving B. If he leaves C. Were he to leave D. If he is leaving6. Supposing this ship ,do you think there would be enough life jackets for all the passengers? A.were t

19、o sink B. has sunk C. was sinking D. sunk7. I dont think hell attend the party, and _ he attend it, what would he wear?A. were B. had C. did D. should 9. You can ask your brother for help. He isnt at home. If he _, I _.A. were, would B. is, would C. is, will D. were, will10. Are you thinking about g

20、oing to Dalian for the vacation? No, but if I _ time, I very glad to go there. A. have, will be B. had had, would have been C. had, would be D. had had, would be11. Sally finally got here from Chicago. If she_ earlier, we _ her to the party then.A. came, would take B. had come, would have taken C. c

21、omes, will take D. had come, would take12. If you _ George, would you please tell him to ring me?A.saw B. were to see C. had seen D. seeMagic LanternMagic BrushMagic StickTime MachineDiscussion:Discussion:What would you do if you had a?Summary of this class(本节小结本节小结)一一. 英语中语气包括三种英语中语气包括三种:陈述语气陈述语气,祈使语祈使语 气气,虚拟语气虚拟语气.二二.虚拟语气用在虚拟语气用在if 引导的与现在事实引导的与现在事实,将来将来 事实事实,过去事实相反的非真实条件状语从过去事实相反的非真实条件状语从 句中句中.三三.一般条件句中虚拟语气的倒装一般条件句中虚拟语气的倒装 四四.错综时间条件句错综时间条件句HomeworkHomework Finish Parts C1 and C2on Page 118 in Workbook.