高考英语第二轮语法专题复习教案四：虚拟语气

　　高考英语第二轮语法专题复习四

　　虚拟语气 Subjunctive mood

　　虚拟语气分三种情况来掌握：

　　1、虚拟条件句。

　　2、名词性虚拟语气。

　　3、虚拟语气的其他用语。

　　一、虚拟条件句：

　　条件状语从句是非真实情况，在这种情况下要用虚拟语气。

　　1、条件从句与现在事实不一致，其句型为：

　　If 主语＋过去时，主语＋should（could, would, 或might）＋动词原形，如：

　　If I were you, I would study hard.

　　If it rained, I would not be here now.

　　2、条件从句与过去事实不一致，句型为：

　　If 主语＋had＋过去分词，主语＋should（could, would, 或might）＋have＋过去分词，如：

　　If the doctor had come last night, the boy would have saved.

　　If I had not studied hard, I would have failed in the exam last term.

　　3、条件从句与将来事实不一致，句型为：

　　＋do，主语＋should（could…）＋ 原形 do

　　过去时（与现在事实条件句一样）。

　　If it should rain tomorrow, we would stay at home.

　　If I were to go to the moon one day, I could see it with my own eyes.

　　If you missed the film to night, you would feel sorry.