一、as if/as though后的虚拟语气

He acts as if he knew me.他显得认识我似的。（与现在事实相反）

They treat me as though I were a stranger.他们待我如陌生人。（与现在事实相反）

He talks as if he had been abroad.他说起话来好像曾经出过国。（与过去事实相反）

He talks and acts as if he might not live long.

他的一言一行似乎行将就木。（与将来事实相反）

【提示】 从句用陈述语气表示的内容若为事实或可能为事实。

It looks as if we’ll be late.我们似乎要迟到了。（事实上有可能迟到）

This meat tastes as if it has already gone bad.这肉吃起来似乎已经坏了。（实际上肉坏了）