定语从句用法的总结

定语从句用法的总结
一.定语从句及相关术语
1.定语从句：修饰某一 句中的名词或代词的从句称为定语从
句，一般紧跟在它所修饰的先行词后面。被修饰的词称为先
行词。
2.关系词：引导定语从句的关联词称为关系词
关系词有关系代词和关系副词。关系代词有that, which,
who, whom, whose, as等;关系副词有where, when, why等。
关系词常有3个作用：1，引导定语从句。2，代替先行词。
3，在定语从句中担当一个成分。
二.关系代词引导的定语从句
指人，在从句中做主语
Yesterday I helped an old man who lost his way.
2. whom指人，在定语从句中充当宾语，常可省略。
you talked about on the bus.
The man whowhom I saw this morning?
5. whose通常指人，也可指物，在定语从句中做定语
I once lived in a house whose roof has fallen in.
whose指物时，常用以下结构来代替
The classroom the door of which is broken will soon be
repaired.
Do you like the book the color of which is yellow?

三.介词+关系代词引导的定语从句
1. 关系代词在定语从句中做介词宾语时，从句常由介词+关
系代词引导
he once studied in is very famous.
Tomorrow I will bring here a magazine you asked for.
We’ll go to hear the famous singer we have often
talk- ed about.
The speed at which light travels is 300,000 km per
second.
* 介词可能是从句短语动词的一个固定部分或固定搭配
This is the watch whichthat I am looking for.
2. 若介词放在关系代词前，关系代词指人时用whom，不可
用who或者that;指物时用 which，不能用that;关系代词
是所有格时用whose
3. “介词+关系代词”前可有some, any, none, both, all,
neither, most, each, few等代词或者数词
In the basket there are quite many apples, some of
which have gone bad.
I still remember the day when I first came to the school.
Shanghai is the city where I was born.
Please tell me the reason why you missed the plane.
The reason why for which he refused the invitation

is not clear.
Great changes have taken place in the city in which.>