于理解与记忆,我们把虚拟语气分成三大块来讨论:1.名词从句中的虚拟语气 标志词+should+动词原形2.条件从句中的虚拟语气 ①三种基本态 ②倒装虚拟句 ③混时虚拟句 ④含蓄虚拟句 ⑤跳层虚拟句3.其它情形中的虚拟语气
一.三种基本形态
表虚拟的时间 if从句谓语形式 主句谓语形式
现在: did / were would +do
过去: had done/ had been would +have done
将来: were to/ should+do would +do
三种基本形态
与现在事实相反:If I had enough money, I would buy a book.
与过去事实相反:If I had had enough money, I would have bought a book.
与将来事实相反:If I were to have enough money, I would buy a book.
If I should have enough money, I would buy a book.
二、倒装虚拟句
Had I had enough money, I would have bought a book.
Were I to have enough money, I would buy a book.
Should I have enough money, I would buy a book.
三、混合时间虚拟语气
If I had studied English at school, I could read the English novel now.
If she were not so careless, she wouldnt have made such a mistake.
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