学位英语语法重点——虚拟语气虚拟语气 （每次考试一般占 4－5 分） 所示的条件主线不也许实现或实现的也许性很小，称为虚拟条件句
虚拟条件句，主句与从句中谓语动词的形式可分为下面三类：假设类型 条件从句动词的时态 成果主句的动词的时态 与 目 前 事 实 相 反 if + 过 去 式 （ be 只 用 were 不 用 was ） would/should/might/could + 动词原型 与过去事实相反 if had + 去过度词 would/should/might/could + have + 过去分词 与 未 来 事 实 也 许 相 反 if were to + 动 词 原 形 if should + 动 词 原 形 would/should/might/could + 动词原型一、在条件句中的应用： If he had time， he would come
假如有时间，他一定来
（已通过去） A
目前事实 I would certainly go if I had time
假如我有时间当然去
If he were here， he might help you
假如他在这也许帮能你
1、I would ask George to lend us the money if I _____ him
（C， 95 年） A
had known B
have known C
knew D
know B
过去事实 59、If Bob____ with us， he would have had a good time
（C， 95 年） A
would come B
would have come C
had come D
came C
未来事实 we would state at home if it should rain
