介词加which的用法

介词加which引导的是定语从句，常见的用法有：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”。

1.in which 在……里面

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

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

2.for which 为了……目的

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

3.on which 在……的上面或具体时间的某一天

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.at which 在……里面或在……上面

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

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