as though (as if)的虚拟语气用法

学习必备欢迎下载
as if(though)从句用虚拟语气
一、基本用法
以as if(as though)引导的方式状语从句或表语从句，有时用虚拟语气，若表示与现在事实相反，谓语动词用一般过去时；若表示与过去事实相反，用过去完成时；示将来的可能性不大，用would(might,could)+动词原形：
He acts as if he knew me.他显得认识我似的。

They treat me as though I were a stranger.他们待我如陌生人。

He talks as if he had been abroad.他说起话来好像曾经出过国。

二、两点说明
(1)从句所表示的内容若为事实或可能为事实，也可用陈述语气：
It looks as if we’ll be late.我们似乎要迟到了。

This meat tastes as if it has already gone bad.这肉吃起来似乎已经坏了。

在现代英语中，有时即使从句内容不是事实，也可能用陈述语气：
I feel as if[as though]I’m floating on air.他感到好像漂浮在空中。

The stuffed dog b ark ed as if it is[were,was]a real one.玩具狗叫起来像真狗。

(2)注意It isn’t as if…的翻译：
It isn’t as if he were poor.他不像穷的样子(或他又不穷)。

It isn’t as if you were going away fo r good.又不是你离开不回来了。