高中英语】虚拟语气grammar.PPT

* 虚拟语气假设条件句型注意点： 1.假设条件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，叫做错综条件虚拟语气。主句和从句的谓语动词要依照假设的时间而顶。 If the weather had been finer, the crops would be growing still better. If you had followed the teacher’s advice, you wouldn’t be in the hospital. 2.假设条件虚拟倒装。 条件从句中有should， were， had三个助动词可以把if省略，并将这三个词提至句首。 If I were you, I would give it up. Were I you, I would give it up. If it were not for your advice, we couldn’t have got over the difficulties. Were it not for your advice, we couldn’t have got over the difficulties. If I had had time, I would have run round that lake again. Had I had time, I would have run round that lake again. If there should be a flood, what should we do? Should there be a flood, what should we do? 2.use otherwise, or and phrases beginning with with, without and but for to replace an if-clause in implied conditionals Without air , there would be no living things. But for your help , I couldn’t have done it. I was busy that day. Otherwise I would have gone there with them. (If I hadn’t been busy that day, I would have gone there with them.) I would have finished the work, but I was ill. (If I hadn’t been ill, I would have finished the work.) (If there were not air) (If it hadn’t been for your help) 3.In adverbial clauses introduced by even if, as if, as though and if only we can use unreal conditionals. 即使生了病，他也去办公室。 Even if he had been ill, he would have gone to his office. 他那样对待我，好像我是陌生人似的。 He treated me as if I were a stranger. 她谈论那部影片，就好像她确实看过一样。 She talked about the film as if she had really seen it. 虚拟语气特殊句型： wish/if only 现在： 过去： 未来： did（were） had done would /could do I wish I were a bird.（现在） I wish I hadn’t made such a mistake. I wish our parents wouldn’t punish us. I wish I could escape the punishment. If only I knew his name! If only we had followed your advice! If only I could see him again! 要是我们的父母明年能和我们住在一起就好了。 要是我没错过火车就好了！ If only our paren