as if和as though有什么区别，什么时候用前者什么时候用后者？谢谢

Question

如题所述

Answer 1

方式状语从句中as if,as though的用法是什么

Answer 2

as if, as though的用法：

这两个复合从属连词的用法和意义完全一样，但as if 在当代英语中比 as though 普通得多。

1）as if 引出的方式状语从句所表示的情况是事实或具有很大可能性时，通常用直陈语气。名子的谓语我为look, seem, taste, smell, sound等。如：

It looks as if they have succeeded in the experiment. 看来好像他们试验成功了。

2) as if 引出的方式状语从句所表示的情况不是事实，而是主观想象或夸大性的比喻时，通常用虚拟语气。从句中谓语动词一般用过去时，be 动词常用 were,但在现代英语中也常见到单数 was的情况。如：

The young man with long hair looks as if he were a girl. 这位满头长发的男青年看上去像个女的。

The injured man acted as if nothing had happened to him.这位受伤的男子表现得好像没发生什么事一样。

3）as if 引出的方式状语从句，当主句谓语是过去时态时，从句谓语形式常常没有什么特殊之处。如：

The lady felt as if she lost something. 这位女士好像学得丢了什么东西。

He was singing as though / if he hadn't had / didn't have a care in the world.他唱着歌，好像人世间他没有忧虑。

4）as if 引导的同一从句中所用的时态不同，意思往往不同。请比较：

* The clown looks as if he were ill.那个小丑好像害病似的。（虚拟语气）

* The clown looked as if he had been ill.那个小丑过去好像生过病。（过去生过病或虚拟语气）本回答被提问者采纳