1.在表示“和……一样……”时可用“as……as”结构(前面的as后要用原级)：

　　He is as busy as before.

　　他还是和以前一样忙。

　　We'll give you as much help as we can.

　　我们将尽量帮助你。

　　His hands are as cold as ice.

　　他的手冰冷。

　　The airport was as crowded as ever.

　　机场还像平常那样拥挤。

　　2.在表示“不像……那样……”时可用“not as(so)……as”：

　　It is not as cold as in Geneva.

　　这里不像日内瓦那样冷。

　　Jack isn't as (so)old as he looks.

　　杰克不像他看起来那么老。

　　I'm not so (as) experienced as you think.

　　我不像你想的那样有经验。

　　She is not so talk ative as before.

　　她不像以前那样爱说话了。

　　3.这种结构中也可包含一个状语：

　　The whale was twice as long as her boat.

　　那条鲸鱼有她的船两倍长。

　　My command of English is not half so good as yours.

　　我英文掌握得还不及你一半儿好。

　　Their house is about three times as big as ours.

　　他们的房子有我们房子三倍大。

　　We've produced ten times as much cotton this year as we did twenty years ago.

　　我们今年生产的棉花是二十年前的十倍。

　　4.在这类结构前还可以加almost, just, nearly或quite这些副词：

　　He was almost as diligent as his sister.

　　他几乎像他姐姐一样勤奋。

　　Mary was just as busy as before.

　　玛丽还是像以前那样忙。

　　She was nearly as tall as her mother.

　　她几乎像她妈一般高了。

　　The hotel was not quite as good as they had expectsd.

　　那家旅馆完全不像他们预料的那样好。

　　5.as...as还可用在许多固定说法中：

　　as brave as a lionas bright as day

　　as busy as a beeas cheerful as a lark.

　　as clear as crystalas cunning as a fox

　　as fat as a pigas gentle as a lamb

　　as vain as a peacockas tough as leather

　　as black as pitch as soft as velvet

　　as stubborn as a muleas easy as ABC

　　as sharp as a needleas strong as a horse