who和whom都是人称代词,who为主格人称代词(Subject Pronoun), whom为宾格人称代词(Object Pronoun)。下面是具体用法。
who的用法who主要用在当先行词表人的情况下,一般在从句中充当主语,但有时也可以作宾语,相当于whom。
如:He's the man who bought these books just now.
The man who I served was wearing a hat.
第一句中的who在从句中作bought的主语,而第二句中的who则作served的宾语。
需要注意的是,当介词位于定语从句的句首时,就不能用who,而要用whom。
如:She is the girl about whom the man talked at the meeting an hour ago.
who也可以用来引导非限定性定语从句。
如:The manager, who comes from Japan, told me to help you with your project.
whom的用法(1)whom主要用在当先行词表人的情况下,在从句中充当动词或介词的宾语。
如:The boy whom you met on the street just now is one of cousins.
He is the man from whom you ought to ask for help.
(2)whom也可以用来引导非限定性定语从句。
如:The soldiers, some of whom come from Alaska, will be sent to Iraq next week.
来源:高三网
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