whom的用法定语从句
whom的用法定语从句:
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.
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.
英语定语从句的用法
(一)whose
whose是所有格形式,所以在引导定语从句时,后面会紧跟一个名词。其先行词既可能是人,也可能是物。如:
The boy whose father is a professor studies very hard.
Are there any rooms whose windows face the sea?
whose也可以用来引导非限定性定语从句。如:
I decided to write about Chaplin, whose films are still very popular among a large audience.
(二)which的用法
which用来引导定语从句时,其先行词都是表物的。如:
非限定性定语从句:He sent me five books, which helped me a lot in my English exam.
限定性定语从句:This is the ship which I travelled on two months ago.
第一句中的which helped me a lot in my Englsh exam作为five books的非限定性定语从句,补充说明了这五本书对我英语考试的帮助。
第二句中的which I travelled on two months ago作为the ship的限定性定语从句,特指这艘轮船是我两个月前乘坐的那艘。
【注意】
1、当which在从句中作宾语时,往往可以省略。比如上面的限定性定语从句中的which就可以省略,即:
This is the ship I travelled on two months ago.
但是,当which前面有介词时,就不能省略。比如上面这句话就可以改为:
This is the ship on which I travelled two months ago.
2、as与which的区别
as和which都可以用来引导定语从句,而且可以指代整个主句。但是,两者在用法上存在一定差别。
1)两者都可以在定语从句中做主语或者宾语,代表前面整个句子。如:
They love each other, as/which is natural.
He doesn't like it, as/which we can see.
2)as有“正如或正像”的意思,其引导的非限制性定语从句,位置可在句首、句末或句中。which引导的非限制性定语从句只能放在主句之后。如:
As is known to all, man cannot live without air. / Man cannot live without air, as is known to all. / Man, as is known to all, cannot live without air.
It is said that he can type 200 words within one minute, which I don't believe.
3)当主从句是因果关系时,一般都用which。如:
He is always complaining about everyting, which annoys everyone around him.
4)如果先行词中含有such或the same时,则用as。如:
He is not such a fool as he looks.
This is the same book as she lost yesterday.
需要注意的'是:当先行词含有the same时,偶尔也用that来引导定语从句,这时与as引导的定语从句意思是不一样的。如:
She wore the same dress that she wore at Mary's wedding. (她穿着她在Mary婚礼上穿过的一条裙子。)
She wore the same dress as her young sister wore. (她穿着和她妹妹所穿的一样的裙子。)
(三)who
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.
(四)whom
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.
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.
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