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英语定语从句用法详解(初中)
在复合句中 , 修饰名词或代词的从句叫
定语从句
, 被修饰的名词或代词
叫先行词
, 引
导定语从句的有关系代词 who, whom, whose, which, that等和关系副词where, when, why
等 , 关系代词和关系副词在定语从句中担任句子成份。
1.由who引导的定语从句中 , who用作主语 , 如 : This is the boy who often helps me.
2.由whom引导的定语从句中,whom用作宾语,如:The man whom you are waiting for has
gone home.
3.由whose引导的定语从句中 , whose用作定语 , 如 : Do you know the girl whose skirt is
white?
4.由whic h引导的定语从句中,which用作主语或谓语动词的宾语或介词的宾语,如:
The room in which there is a machine is a work shop.
The river which is in front of my house is very clean.
This is the pen which you want.
注意 :
(1)whom, which用作介词宾语时 , 介词可放在 whom、which之前 , 也可放在从句原来的
位置上;但在含有介词的动词固定词组中,介词只能放在原来的位置上。如: He is the very
person whom we must take good care of.
(2)引导非限制性定语从句时,必须用关系代词which,不用that,如:I have lost
my bag, which I like very much.
(3)关系代词在句中作主语时,从句的谓语动词的人称和数必须和先行词保持一致。
5.由that引导的定语从句中,that可以指人或物,在从句中作主语或谓语动词的宾语,但不
能放在介词后面作介词宾语,如:
The book that I bought yesterday was written by Lu Xun.
注意在下面几种情况下必须用 that引导定语从句。
(1)先行词是不定代词all, few, little, much, something, nothing, anything等 , 如 :
All that we have to do is to practise English.
(2)先行词被序数词或形容词最高级所修饰,如
The first letter that I got from him will be kept.
(3)先行词被all, any, every, each, few, little, no, some等修饰 , 如
I've eaten up all the food that you gave me.
(4)先行词被the only, the very, the same, the last修饰时如
He is the only person that I want to talk with.
(5)先行词既有人又有物时,如:
They talked about persons and things that they met.
(6)当句中已有who时 , 为避免重复 , 如 : Who is the man that is giving us the
class?
6.由when, where, why引导的定语从句,如:
I don't know the reason why he was late.
This is the place where we have lived for 5 years.
I'll never forget the day when I met Mr Li for the first time.
注意:先行词是表示地点时,如果从句的谓语动词是及物的,就用 that(which),如果从句的
谓语动词是不及物的,就用where引导。This is the house Which /that he has lived in for 15
years.(Where he has lived for 15 year.)
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