资源描述
2020年精编外研版英语资料 M6 U3 Grammar Unreal conditionals Teaching aims: The Ss are expected to use unreal conditionals of the present, past or future time;Procedures:Step 1: Lead-in:1. Translate the following sentences on the blackboard.如果我是一只小鸟，我就能飞了。 If I were a bird, I could fly.2. Find out the unreal conditional sentences mentioned in the reading part.If you had joined the chat room ten minutes ago, you would have known what we were talking about.If I got married in the UK, I would expect a present.If I got married in Italy, I would have to give a present.Should you come to Brunei, you would have to take off your shoes before going into someones house.Step 2: Presentation: Unreal conditionals can be used in three different tenses:1. to state a present condition or situation that is not real or is imaginary. If were/did , would/could/might do Practice: 1) 假如我有更多的时间，我就学习汉语了。If I had more time，I would study Chinese.2) 要不是她这么忙，她就会出席今天下午的会议了。If she _ not so busy, she _ the meeting this afternoon.2. to use unreal conditionals to refer to an imaginary past action.If had been/done , would/could/might have done Practice: 1) 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。If you_ him yesterday, he _ some suggestions.3. to use unreal future conditionals to talk about imaginary future situations.If was/were/did/should/were to , would/should/might do. Practice: 1) 假如我要出国，我就会去中国。If I _ abroad, I _ to China.2) 万一明天下雨，我们的运动会就推迟。If it _ tomorrow, our sports meeting _.三种用法的总结：表示与事实情况相反条件从句的谓语形式主句的谓语形式表示与现在事实情况相反(present)过去式(did/were)(be常用 were)would/could/might/should+do表示与过去事实情况相反(past)过去完成式(had +done) would/could/might/should +have done表示与将来事实情况相反(future)过去式(did)/(were)should + do were to dowould/could/might/should+do4. We can also put should, were and had at the beginning of an unreal conditional sentence. In this case, if is not needed any more.E.g. 1). If you should make a mistake, you should not be embarrassed._, you should not be embarrassed.2). If you had told me earlier, I would not have this problem now._ me earlier, I would not have this problem now.3). If you were to take the train, you would be there much sooner._ the train, you would be there much sooner.Step 3. Practice1. Fill in the blanks with the verbs given in the brackets in their proper forms.1. You didnt let me drive. If we _ (drive) in turn, you _ (not get) so tired.2. _ it _ (not be) for your help, I couldnt 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 _ (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.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.2. 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 , 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 fartherFeedback:
展开阅读全文