与将来相反 would/could/might＋动词原形 　　He walked as if he were drunk.

　　他走起路来像是喝醉了。

　　He talks as if he had been to many places in the world.

　　他谈起话来好像他去过世界上的很多地方似的。

　　[名师点津]　as if/though也可以引导表语从句，根据情况也常用虚拟语气。

　　He looked as if he were a foreigner.

　　他看上去好像一个外国人。

　　(2)在in order that, so that引起的目的状语从句中，谓语动词多用may/might/can/could＋动词原形。

　　Let's hand in the exercises earlier so that the teacher may have time to correct them.

　　我们早点交练习以便于老师有时间改。

　　The teacher spoke slowly in order that the students could/might hear clearly.

　　老师讲得很慢，为了让学生听清楚。

　　4．虚拟语气在其他一些句型中的用法

　　(1)It's (high) time that ...从句中，谓语动词可以使用过去式，也可使用should＋do；表示"早该......了"，其中should不可以省略。

　　It is time that I went to pick up my daughter at school.

　　我该去学校接我的女儿了。

　　It is high time you should go to work.

　　你早该上班了。

　　(2)if only引导的感叹句中，意为"要是......就好了"。

　　if only中谓语动词的形式：

与现在事实相反 过去时 与过去事实相反 过去完成时 与将来事实相反 would/could do 　　　　If only they were here now, we would be able to celebrate their wedding anniversary.

　　如果他们现在在这里就好了，我们就能庆祝他们的结婚纪念日了。

　　If only she had taken his advice last night.

　　要是她昨晚接受他的建议就好了。

　　If only he could go with us tomorrow.

　　要是他明天能和我们一起走该多好啊。

　　(3)其他一些表示祝愿的句型。

　　May you succeed!

祝你成功！