in which在定语从句中充当什么成分

in which只能用在定语从句中，等于where，在定语从句中作状语。如果先行词前已有前置词，关系副词就用where；如果先行词前没有前置词，此时既可以用where，也可以用in which。

in which在定语从句中充当什么成分

in which引导定语从句，在从句中不作地点状语，而是作方式状语时，用in which；引导定语从句，介词in与从句中某些词语构成固定搭配，用in which。

既能用where又能用in which的情况

引导定语从句，在定语从句中作地点状语，从句与先行词的搭配缺少介词in时，既能用where又能用in which。

（1）This is the house where/in which he used to live.

这是他过去住的房子。

（2）The old school has now turned into a large modern factory where/in which a lot of coulour TV sets are produced every year.

这所旧学校现在已变成一个大型的`现代化工厂，每年生产许多彩色电视机。

只用in which不用where的情况

1、引导定语从句，但在定语从句中不作地点状语，而是作方式状语时，只用in which，不用where。

（1）This is the best way in which we can do the work well.

这是我们把工作做好的最好办法。

2、引导定语从句，介词in与定语从句中某些词语构成固定搭配时，只用in which不用where。

（1）He left his work in which he had been very successful.

他离开了他非常成功的工作。

in which结构分析

介词+关系代词结构

“介词+which”就是把介词提到关系代词 which 之前，它是定语从句中常见的语言现象：

介词+which可以替代关系副词when，where，why。

1、替代when

I'll never forget the day on which（=when）my son was born.

我永远忘不了我儿子出生的那一天。

2、替代where

This is the office in which（=where）I used to work.

这就是我过去工作过的办公室。

3、替代why

I‘d like you to explain the reason for which（=why）you refused my offer.

我想让你解释一下你拒绝我的帮助的原因。

in which, for which, on which, at which的不同用法　　

这些都是定语从句里面，由which引导的定语从句，介词提前。　　

in which可以翻译成在……里面　　

for which可以翻译成为了……目的　

on which可以翻译成在……的上面，或具体时间的某一天　　

at which可以翻译成在……里面或在……上面　　

这些介词的使用除了意思上的区别，具体是要以which引导的从句而定的。　　

例如：　　

（1） The school （that/which） he once studied in is very famous.　　

= The school in which he once studied is very famous.　　

（2） Tomorrow I will bring here a magazine （that/which） you asked for.　　

= Tomorrow I will bring here a magazine for which you asked.　　

（3） I have a dresser in my bedroom, which there are many cosmetics on.　　

= I have a dresser in my bedroom on which there are many cosmetics.　　

（4）The dumpling House which he often has dumplings at is very popular.　　

= The dumpling House is very popular, at which he often has dumplings.