who和whom在定语从句中的区别

　　who和whom在定语从句中的区别具体如下：
　　定语从句中，指人的先行词用who或者whom做连接词，who用来做从句的主语，whom用来做从句的宾语.下面是它们的用法.
　　1)This is a nurse who wears a white skirt.
　　2)It‘s a policeman who gave us an way to the park.
　　3)He is a worker who works very hard.
　　注意：上文中，连接词who都做下文的主语，此时用who是最为恰当的。而在连接词做下文的宾语时，更多的是用whom。
　　a)Thisis the person whomI just saw.
　　* This is the person I just saw whom.
　　b) She is a teacher whomI like best.
　　* Sheis a teacher I like whom best.
　　c)Tomis the driver whom we talked about.
　　* Tom is the driver we talkedabout whom.
　　注意：上文3句中，whom都做从句的宾语。