英语集(一)

定语从句:

        名词/代词+关系代词或关系副词 +句子

关系代词:that,which,who,whom,whose

关系副词:when,where,how,why

1、加“，”的定语从句指物用which,指人用who

非限制性定语从句其作用是:作名词的补充说明=/=名词/代词，而限制性定语从句呢其作用是:限定名词的范围，性质状态等等=/= 名词/代词;而同位语从句等于它修饰的名词/代词

2、关系代词做宾语时可省略，做主语不可省

3、定语从句中有介词(除了像look for/at，listen to，depend on,take care of等固定搭配外)可以提前，此时则不能用that.表物用which,人用who/whom。

ex:This is the place that/which i was born in and grew up in

=This is the place in which i was born and grew up

This is the man on whom he will depend(Ⅹ)

This is the man whom he will depend on(√)

4、

如果“介词+which”表示时间=when

                              表示地点=where

                                表示原因=why

ex:This is the place in which i was born

=This is the place where i was born

The earth on which we live is a planet．

=The earth where we live is a planet．

I'll never forget the day on which I joined the League．

=I'll never forget the day when I joined the League．

Is there any reason for which you should have a holiday？

=Is there any reason why you should have a holiday？