名词性从句中which和who的区别

who是人。which是物，what=the thing that

名词性从句中 what which 怎么翻译

简单地说就是他们所充当的句子成分是不一样的

who 可以做主语，又可以做宾语

whom只能做宾语

who和whom在定语从句中作关系代词时：

1、who指人，在从句中做主语

(1) The boys who are playing football are from Class One.

(2) Yesterday I helped an old man who lost his way.

2、whom指人，在定语从句中充当宾语，常可省略

(1) is the person (whom) you talked about on the bus.

(2) is just the boy whom I want to see.

注意：关系代词whom在口语和非正式语体中常用who代替，可省略

当先行词前没有最高级，everything，anything，something，nothing时可用which或that，且从句后有介词时只能用which

例1：The girl which is eating ice cream is my sister.

例2：The chair which my father sits on is bought by me.

which也可作疑问词

例：Which is the shirt you bought yesterday?