as作介词时,一般有两种含义:
“如,像”;
They got united as one man.他们团结得像一个人一样。
“充当,作为”;
As a painter,she was famous.作为画家,她很出名。
as作连词时,常用来连接主句和状语从句
引导时间状语从句,含义为“当...的时候”;
I was startled as he opened the door.他一开门,我吓了一跳。
引导原因状语从句,含义为“因为,由于”,与because的用法相近;I must stop walking now,as I have a headache.我必须停下来,因为我头很疼。
引导让步状语从句,含义为“虽然,尽管”;
Strange as it may seem,it is true.尽管这事看上去很奇怪,但却是真的。
as还用于一些固定搭配之中:
as far as I am concerned 在我看来
as soon as 一...就...
as far as I know 据我所知
除上述用法外,as还可用作连词引导状语从句。As作为引导词可连接多类状语从句,如时间状语从句、原因状语从句、方式状语从句或比较状语从句。因此,还望同学们能够记住as的各种用法,一些含as的固定短语还可以用在写作当中。
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