as的用法小结

二、副词as

1.与……等同;和……一样。用于句型as……as，

This dress is twice as expensive as that.

这件裙子比那件贵一倍。

He recited as much of the poem as he could remember.

他把诗中记得住的都背了出来。

2.像;如

As before he remained unmoved.

他像往常一样无动于衷。

三、连词as

1.在……期间;当……时

As he grew older, he lost interest in everything, except gardening.

随着年纪越来越大，他对一切都失去了兴趣，除了园艺。

2.因为

As he's been ill perhaps she;ll need some help.

她由于生病可能需要些帮助。

3.尽管;虽然

Young as I am, I already know what career I want to follow.

我虽然还小，可是对想要从事的职业早已胸有成竹了。

4.以……的方式;按照

Why didn't you catch the last bus as I told you to?

你怎么不听我的话赶上末班车呢?

5.为……之事实;正如

Cyprus, as you know, is an island in the Mediterranean.

如你所知，塞浦路斯是地中海的一个岛国。

6.也一样(通常后接be或do+主语)

He's a doctor, as was his wife before she had children.

他是医生，他妻子生孩子之前也当过医生。

四、固定搭配

1.as for sb.至于

As for the hotel, it was very uncomfortable and miles from the sea.

至于旅馆呢，非常不舒服，而且离海边还远。

2.as to sb./ sth.至于

As to correcting our homework, the teacher always makes us do it ourselves.

谈到批改我们的作业，老师总是让我们自己改。

3.as if / though 似乎;好像

He behaved as if nothing had happened.

他装作若无其事的样子。

4.as it is 照现状看;看样子

We were hoping to have a holiday next week, as it is, we may not be able to get away.

我们原本盼望着下周放假，看样子走不了了。

五、辨析

1.when / while / as

三者都可以引导时间状语从句，翻译成“当……时”。大多数情况下都可以互换。when没有具体要求，时间点和时间段都可以;while只能用于时间段;as更多了一个“随着”的意思，可以表达“一边……一边……”。

When my mother came into the house, she found me lying there awake.

当妈妈走进家门时，发现我正在那睁着眼躺着。

While we were talking happily, the teacher came in.

我们正谈着开心，老师走了进来。