什么时候用whom,什么时候用who,定语从句中Who和Whom的区别(举例说明)

网友回答

WHO 可以做主语,又可以做宾语
　　WHOM只能做宾语
　　例子：1,who are you? 不能是whom are you?
　　2,This book belongs to whom/who?两者都可以
　　一.定语从句及相关术语
　　1.定语从句：修饰一个名词或代词的从句称为定语从句,一般紧跟在它所修饰的先行词后面.
　　2.关系词：引导定语从句的关联词成为关系词
　　关系词有关系代词和关系副词.关系代词有that, which, who, whom, whose, as等；关系副词有where, when,
　　why等.
　　关系词常有3个作用：1,引导定语从句.2,代替先行词.3,在定语从句中担当一个成分.
　　二.关系代词引导的定语从句
　　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) Mr. Liu is the person (whom) you talked about on the bus.
　　(2) Mr. Ling 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

网友回答

定语从句中,whom只能在从句中充当宾语成分,who既可当主语又可当宾语.但是若是介词后的宾语,只能用whom而不能用who.
　　如：there is nobody who/whom he can turn to for help.没有谁可以让他寻求帮助.这里引导词当宾语,who和whom都行,当然这里既可指人也可指物的that也可以。
　　但是：there is nobody to whom he can turn for help.这里引导词同样当宾语,但是位于介词to后,只能用whom,而不能用who（that同样不行）。
　　扩展资料定语从句中易混淆的难点
　　1、在限定性定语从句中指代物时，which 和that 一般可通用。
　　The new house that/which I has just bought is about six miles away.
　　They planted some trees that /which did n't need much water.
　　2、限定性定语从句中只用that 而不用which 的情况。A）先行词有形容词最高级修饰时 This is the best way that has been used against pollution. Polly is the most direct young woman that I have ever e across .
　　B) 先行词有序数词修饰时 This is the third time that they have met. The very first time that Lester saw the film, he made up his mind to bee a doctor.
　　参考资料百度百科-定语从句