as if ，英語詞組，可在look, seem等系動詞后引導(dǎo)表語從句，表達的是虛擬語氣好像、似乎、仿佛的意思。

1．引導(dǎo)表語從句， 常與as,look,seem,feel,taste,smell,sound等系動詞連用。

如：

She looks as if she were ten years younger．

她看起來好像年輕了十歲。

It seems as if our team is going to win．

看來我們隊要勝了。

It looks as if a tornado swept through your room.

好像有龍卷風席卷過你的房間。

It looks as if they're looking for something.

他們看起來好像在找什么東西。