高考if虚拟条件句

1、Subjunctive Moodif 虚拟条件句知识梳理 if引导的虚拟条件句 一. 定义 二. 公式 三. 三个问题 1) 错综时间条件句 2) if 从句的倒装 3) 含蓄条件句 四. 解题技巧 五.小试牛刀区别:If it rains tomorrow, the crops will be saved.If it rained tomorrow, the crops would be saved.陈述语气虚拟语气为什么用虚拟语气？用来表示说的话不是事实，或者是不太可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。一. 定义:主从句的谓语形式时间If 从句的谓语形式主句的谓语形式现

2、在过去将来did / werehad donewould/could/should/might +V.(原)would/could/should/might+have+p.p.1. did / were2. should do3. were to dowould/could/should/might + V.(原)二.公式If I had a lot of money now, I would travel around the world.If it were fine now,I would go shopping.If I _time last night, I _ to see the

3、 film with you .had hadwould have goneWhat would you do if you won the lottery?If I won the lottery,I wouldIf I won the lottery, I would buy a villa.三.if虚拟条件句中3个问题:1.错综时间条件句2. if从句的倒装3.含蓄条件句错综时间条件句if从句谓语动词发生的时间,与主句所假设的谓语动词不一致情况下的虚拟语气(这时的动词形式应根据它所表示的时间加以调整。) 各人自扫门前雪If I how to swim, I trapped in this

4、 island now.had learnt would not be 如果我学会游泳，现在就不会困在岛上了。1. 如果我是你，我就听从他的建议。If I were you, I would have taken his advice.从句表示现在，主句表示过去2. 如果你听我的话，现在你就不会陷入麻烦了。从句表示过去，主句表示现在If you had listened to me, you might not be in such trouble now.if从句的倒装若if从句中有were, had, should时, 去掉if，可倒装成：Were / Should / Had +主+其他

5、Were I you, Had he been there yesterday, Should it snow tomorrow, If I were you, I would try it again.If he had been there yesterday, he would have seen the film.If it should snow tomorrow, we wouldnt go out.如果我是你，我会再试一次。如果他昨天在那儿的话，他就会看那部电影了。 如果明天下雪，我们就不出去了。含蓄条件句1.一些介词短语, 如: without（没有），but for(要不是)

6、, otherwise(否则), in that case(如果是那样的话), 表示含蓄的条件,这时主句要用虚拟语气，例如：Without /But for your help, we would not have made such rapid progress. I was ill that day. 0therwise, I would have taken part in the sports meeting.2.并列连词but，or及语境暗示，例如: 有时为了表达需要,并不总是出现 if 引导的条件句,而通过其他手段来代替条件句.1).I might have given you m

7、ore help, but I was too busy.2).You didnt come yesterday, or you would have seen him.3).It would be easier to do it this way. (条件暗含在不定式短语to do it this way 中)2.并列连词but，or及语境暗示，例如: 虚拟语气解题技巧1. 定位关键词，根据语义和上下文判断是不是虚拟2. 熟背虚拟的“公式”，判断时态（是否有明显时间提示词，主从句谓语的时间是否一致，注意是否有含蓄虚拟或者虚拟倒装存在，留心主动被动等）3. 确定时态，选用谓语动词相应的正确虚拟

8、形式4. 复查 Practice1. If I were a millionaire, I _(give) away some money to charity to help those in need2. If you _(pay) much attention to what he said, you could have avoided making such a foolish mistakewould give had paid Practice3. If it _(rain) tomorrow,the basketball match would be put off.4. Ha

9、d I realised what you were intending to do. I _(try) my best to stop you.football matchrained/ were to rain/should rain would have tried Practice5. If I _(take) my fathers advice, I might have bought a ticket for the football match.7. If her husband _(not kill) in the war, she wouldnt be working as a servant to support her family now Practice8. Without his help andencouragement, I _ (not win) first place in the competition last week. Practice1.没有你的帮助，我们就无法按时完成工作。2