从句是相对于主句而说的:它依附于某一个主句,而不能单独成为一个句子。在英语中有三大从句,即:1. 名词性从句(包括主语从句,宾语从句,表语从句,同位语从句);2. 定语从句;3. 状语从句(包括时间、条件、结果、目的、原因、让步、地点、方式等)今天为大家介绍的初中英语定语从句的一些用法:
在复合句中修饰名词或代词的从句为定语从句, 关系代词和关系副词在定语从句中担任句子成份。
1.在who引导的定语从句中用作主语 , 如 : This is the boy who often helps me.
2.由whom引导的定语从句中作为宾语,如:The man whom you are waiting for has gone home.
3.whose引导的定语从句中作为定语 , 如 : Do you know the girl whose skirt is white?
4.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作介词宾语时 , 介词可放在 whom之前;但在含有介词的动词固定词组中,介词不能移动位置。如: He is the very person whom we must take good care of.
(2)关系代词在句中作为主语时,从句的谓语动词的人称和数必须和先行词保持一致。
由that引导的定语从句里面,that可以指人还可以指物,但不能把它放在介词后面作介词宾语,注意在下面这些情况下必须用 “that”引导定语从句。
(1)先行词是不定代词few, little, much, nothing,等 , 如 :Say all that you know
(2)序数词或形容词修饰先行词: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, 修饰时如 He is the only person that I want to talk with.
(5)先行词不但有人还有物时,如: They talked about persons and things that they met.
(6)当句中已存在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:先行词是表示地点的时候,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。
以上内容就是小编为大家整理的初中英语从句的一些用法,如果大家想学习更多的关于初中英语的知识,请关注平安好学英语在线学习平台,这是专属于学习者个人的24小时不打烊学习便利站,体验随时与优秀外教真实互动的快乐学习感受。