Book6_U4_课件课时5Grammarandusage2.ppt
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1、牛津高中英语,(模块六 高二上学期),Advance with English,Unit 4,Grammar and usage,Unit 4,课件描述:,本课件主要运用于帮助学生巩固虚 拟语气的各个规则,并进行归纳和练习。,1. Inversion of Conditional Omission of “if”,虚拟条件句的从句部分如果含有were, should,或had,可将if省略,再把were,should或had 移到从句句首,实行倒装。,If they were here now, they could help us. Were they here now, they coul
2、d help us. If you had come earlier, you would have met him. Had you come earlier, you would have met him. If I should have time, I would call her. Should I have time, I would call her.,Exercises I,First, change the following sentences into conditionals. Second, invert these conditionals.,1. The boy
3、who went swimming in the No- swimming Zone drowned in the river.,If the boy hadnt gone swimming in the No-swimming Zone, he wouldnt have drowned in the river.,Had the boy not gone swimming in the No-swimming Zone, he wouldnt have drowned in the river.,2. Billy was badly bitten by mosquitoes because
4、he forgot to use the mosquito net last night.,If Billy had remembered to use the mosquito net last night, he would not have been bitten by ,Had Billy remembered to use the mosquito net last night, he would not have been bitten by ,3. The mother carelessly put the knife within the babys reach, and th
5、e baby cut herself while playing it.,If the mother had carefully put the knife out of the babys reach, the baby wouldnt have cut herself.,Had the mother carefully put the knife out of the babys reach, the baby wouldnt have cut herself.,Exercises II,Multiple Choices,1. _the exam, he would have attend
6、 a college.,A. If he passed B. Had he passed C. Were he passed D. If he should pass,B,2. _ five minutes earlier, you could have seen them off.,A. If you should arrive B. If you arrive C. Had you arrived D. Should you arrive,C,3. _it rain tomorrow, we should have to put off the visit to the Science M
7、useum.,A. Were B. should C. would D. will,B,2. Implied conditionals,1. but for, without, under, with etc. But for electricity, there would be no modern industry. Without your help, we could not have succeeded. Under such circumstances I would probably have done the same.,2. otherwise, but, or I ran
8、all the way to school, otherwise I would have been late. He felt very tired yesterday, or he would have helped you. 3. but that (要不是) But that he was short of money at the time, he would have come to help us.,4. -ing phrases and to-infinitive You would have laughed to see him jump aside. This same t
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