as 的用法汇总

一.as在定语从句中做关系代词,在从句中充当主语,宾语,或表语,as做表语习惯省略be动词.

as在限制性定语从句中

1.such+名词+as从句   such用来修饰名词

I don't like such a man as talks big.我不喜欢吹牛的人.

Such house as she could find was expensive .凡是他能找到的房子都很贵.

注意区别下面两句话

This is such an interesting book as everyone likes.定语从句 as做宾语 这是一本每个人都喜欢的书.

This is such an interesting book that everyone likes it. 结果状语从句 这是一本有趣的书以至于每个人都喜欢.（such 修饰名词,so修饰形容词或副词）

such+名词+as 表列举

I like such animals as dogs ,cats.

such +n+as to do sth

I am not such a fool to believe her .

such as to do sth

Met with disappointments such as to drive me mad .

2.such as从句  such是代词在主句中充当主语,宾语,表语

Such as you see is our house.

such as 表列举

I know three languages, such as Chinese,English.

such+n+as to =such+n+（that）从句

as such 意思是"本身"

Money as such will seldom bring happiness.

the same +名词 +as从句

I have the same book as he is reading.

定语从句 as做宾语 我有一本和他正在读的一样的一本书.（两本书）

I have the same book that he is reading.

定语从句 that做宾语 我得到了他正在读的那本书.（同一本书）

as（so）+adj+a+名词+as从句  只能用名词单数

He is as clever a child as I ever saw. 定语从句 as做宾语他是我曾经见过的最聪明的孩子.

so +形容词+as to do sth =so...that...   （so修饰形容词或副词）

I get up so early to catch the first bus.

so as to do sth =in order to sth

I worked hard so as to finish it before weekend.

as在非限制性定语从句中

修饰主句,对主句所陈述的事实加以概括,补充,说明等,此时as和which一样.

区别:（1）as位置灵活,可在主句前,可在主句后,which只能在主句后.

（2）不是修饰主句,当前面有先行词时,不能用as,只能用which.例:The elephant is not like a snake,which has no legs.

更多例子:

as 做主语

as is well known （to us）

as was  mentioned before

as could be expected

as could be judged from her eyes

as may be seen from the book

as is recounted in his stories

as everyone could do

as often happens

as will be shown in fig.3

as has been pointed out

as has been explained

as is often the case

as （is） usual

He listed the names as follows （follows永远是单数）

as做宾语

as we all can see

as we all know

as it is