| 牛津模块6 Unit 3 语法教学案:虚拟语气(译林牛津版高二英语选修六教案教学设计) |
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Period5 Grammar and Usage Teaching Objectives: 1.Use unreal conditionals of the present, past or future time. 2. Improve students’ ability of using unreal conditionals Teaching Procedures: Step1 Lead-in Look at the two sentences 1.If it were Sunday, I would go hiking.2. If I were a bird, I could fly. Think about the questions 1,If it were Sunday, what would you do?2.Is it real that it is Sunday today? 3.Is it possible for you to be a bird? Step2 Presentation 虚拟语气 1） 概念 虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反 2） 在条件句中的应用 条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气. e.g. If he had seen you yesterday, he would have asked you about it . 如果他昨天见到你，他会问你这件事的。 If it doesn’t rain tomorrow, we will go to the park. 如果明天不下雨的话，我们就去公园。 一：虚拟语气在条件状语从句中的用法。 条件从句 从 句 主 句 与现在事实相反 动词的过去式（be的过去式一般用were） would/ should/ could/ might + 动词原形 与过去事实相反 had + 过去分词 would/ should/ could/ might + have + 过去分词 与将来事实相反 1.动词过去式 2.should + 动词原形 3.were to + 动词原形 would/ should/ could/ might + 动词原形 1、表示与现在事实相反的假设和结果 e.g.我是你的话，我会马上走。 If I were you , I would go at once. e.g. 要是我哥在这儿，一切都没问题了。 If my brother were here, everything would be all right. Translation: 1、如果他有时间，他就会（可能）和你去。 e.g. If he _______ time, he ________________________ with you. 2、要是我是你，我就会/可能对他说实话。 e.g. If I ________ you, I _________________________ him the truth. 注：主句中should只用于第一人称，从句中的should可用于任何人称。 2.表示与过去事实相反的假设或结果 e.g. If you had come a few minutes earlier, you would/could/might have met the famous singer. 如果你早来几分钟的话，你就会（可能会）见到那个著名歌唱家。 e.g. If I had had the money last week, I should /would/could/might have bought a car. 如果我上星期有了这笔钱，我就会（可能）买1辆车。 Translation: 1、要是她早来五分钟，她就能赶上早班车了。 e.g. If she ____________ five minutes earlier, she ______________the early bus. 2、如果你昨天在这里，昨天他就能找到你了。 e.g. If you _________here, he____________________ you yesterday. 3、表示与将来事实可能相反的假设和结果 e.g. If it were sunny tomorrow, I would come to see you. If it should rain, the crops would be saved. 假如天下雨，庄稼就一定（有可能）得救。 If it were to snow this evening, they would not go out . 如果今晚下雪，他们将不出去了。 4.虚拟条件句可以转换的形式 （1）省略连词if 在书面语中，如果虚拟条件句中有were, had或should，可以把if省略，而把这几个词放到主语之前，构成主谓倒装。 Were I you (If I were you ), I would not do it 我要是你，就不做这事 Should he come(If he should come),tell him to ring me up. 他要是来了，让他给我打个电话。 ( 2 )用介词短语代替条件状语从句 Without air (If there were no air), there would be no living things. 如果没有空气的话，就不会有生物了。 But for your help(If it hadn’t been for your help)I couldn’t have done it. 要不是你的帮助，我就不可能完成这件事。 Step3. Practice Do the exercises on Page 40 and 41. Step4. More practice Ex1. Fill in the blanks with the verbs given in the brackets in their proper forms. 1.You didn’t let me drive. If we ____________(drive) in turn, you ________________(not get) so tired. 2.__________it ________(not be) for your help, I couldn’t have made any progress. 3.——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. 5.Most of the students felt rather disappointed at the English party. They said that it _____________________(organized) better. 6.Jean doesn’t want to work right away because she thinks that if ____________________(get) a job, she probably wouldn’t be able to see her friends very often. 7. Much labour would have been saved if electronic computer _________________(invent) before. 8.-------Well done, Jack！ -----Thanks. But given more time, I________________(do) it better. Ex2. Choose the right answer. 1. Everything if Albert hadn’t 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 , we would be rich. A. should we succeed B. we should succeed C. might we succeed D. would we succeed 3. 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 farther 4. I _____ you some money, but I hadn’t any on me then. A. would lend B. would have lent C. could lend D. may have lent 5. ______ today, he would get there by Friday. A. Was he leaving B. if he leaves C. Were he to leave D. if he is leaving 6. Supposing this ship ,do you think there would be enough life jackets for all the passengers? A. were to sink B. has sunk C. was sinking D. sunk 7. I don’t think he’ll attend the party, and ______ he attend it, what would he wear? A. were B. had C. did D. should 8. —— My boss often made me work day and night. —— If I _____ you, I ______ the job. A. am, will give up B. had been, would have given up C. were, would give up D. had been, would give up 9. —— You can ask your brother for help. —— He isn’t at home. If he _____, I ______. A. were, would B. is, would C. is, will D. were, will 10. —— Are you thinking about going 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 be 11. ——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. comes, will take D. had come, would take A. saw B. were to see C. had seen D. see Keys: 1. had driven, wouldn’t have got 2. had, not been 3. would have thought 4. Were, to rain / Should, rain 5. could / might have been organized 6. were to get/should get/got 7.had been invented 8.could/would/might have done Keys: 1.D 2.A 3.C 4.B 5.C 6.A 7.D 8.B 9.A 10.C 11.B 12. D |
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