2011英语四级语法讲义大全：定语从句四

种类

先行词

关联词

例     句

说   明

非

限

制

性

定

语

从

句

人

物

没有固定的先行词而是一个句子

who

whom

which

which

as

George ,who is my classmate, has won a scholarship.

乔治获得了奖学金，他是我的同学。

Dr. Li , whom I know very well, will come here tomorrow.

李大夫明天将来这儿，我跟他很熟悉。

I gave him a New Year card ,which he enjoyed very much.

我给他一张贺年卡，他很喜欢它。

He studies hard at school when he was young, which leads to his success in his later life .

他年轻时在校学习努力，这导致了他后来生活中的成功。

He gets up early ，as is always his habit.

他总是早起床，这是他的习惯。

John was admitted into the college, as we had expected.

约翰被大学录取了，这是我们期待的。

The earth ,as is known to all ,is round.

人人皆知，地球是圆的。

who, whom不能省去，也不能用that代替

which指物，不可省去，也不能用that代替

which作主语指它前面的整个句子，不可用that代替，强调结果。

as指全句，在从句中做主语。

as指全句意思，在从句中做宾语。

as引导的定语从句可以放在句首，句中或句末。

This is the same book as I lost yesterday.

这本书与我昨天丢失的那本书一样。

用于the same… as, such… as ,as…as等结构中。