72　as if和as though

① as if和as though的用法几乎完全相同，表示“好像，仿佛”，只是as if用得更为普遍。as if/as though引导状语从句，有三种时态：

表示有可能→动词用一般现在时

表示与现在事实相反→动词用一般过去式

表示与过去事实相反→动词用过去完成式

It looks as if it is going to rain. 看来好像要下雨了。

My teacher loves me as though I were his own child. 我的老师爱我就像自己的孩子一样。

He looks as if nothing had happened. 他看起来好像什么事都没有发生过。

② as if/as though后也可接不定式，表示即将发生的情况。

She opened her lips as if（she was going）to speak. 她张开嘴好像有话要说。

He raised his hand as if to take off his hat. 他举起手，好像要取下帽子。

③ as if/as though后还可接名词、形容词（短语）、介词短语和分词。

He acts as if a fool. 他做事像个傻子。

The mountain appears as if covered with white snow. 那座山看上去好像有白雪覆盖一样。

She glanced about as if in search of something. 她扫视四周，好像寻找什么东西。

He paused as if expecting Mary to speak. 他停了下来，好像期望玛丽说话。

When she finished she waited as if for a reply. 她说完后就等着，好像是等着答复。

④ as if/as though可以放在句首，表示感叹语气，含有惊讶、不满、不赞成、厌恶等。

As if I cared！我才不在乎哩！

As if he were someone important！好像他是什么重要人物似的。

As if anyone would believe his words！好像有人会相信他的话似的！