推荐回答(3个)
定语从句与同位语从句我们在使用中常常容易混淆,所以要格外注意它们的异同点。
1)相同点
定语从句与同位语从句都有名词作先行词,也都可以由连词that引导,也可以由when、where、who、which,why引导,并且通常都紧接先行词之后。
2)不同点
a、先行词不同。一般来说,定语从句对其先行词,即名词没什么特别的要求,而同位语从句通常只能是抽象名词。
b、引导词不同。定语从句和同位语从句有很多相同的引导词,但是how和whether不能引导定语从句,而可以引导同位语从句;which不能单独引导同位语从句,必须接一个名词或代词才能引导同位语从句。
c、作用不同。同位语从句对先行词加以解释或补充说明,说明该名词的的具体内容;定语从句对先行词加以修饰或限定。
d、引导词的作用不同。that在同位语从句中,没有意义,也不充当任何成分;而在定语从句中,虽然that没有意义,但充当一定的成分,即在从句中作主语、宾语或表语。
另外,虽然who,when,where,Why既可以引导定语从句,也可以引导同位语从句,但在引导定于从句是:when的先行词必须是表示时间的名词,如:time,day,year等;同样,who的先行词必须是表示人的名词,where的的先行词必须是表示地点的名词,Why的先行词必须是表示原因的名词。然而这些引导词引导同位语从句时都只能用某些抽象名词作先行词,如:fact,idea,hope等。
(如果我答错了,一定要告诉我)
简单来说有两大区别:
1
成分:
在定从中,that
做成分,指代先行词;在同位语从句中,that
不做成分,没有意义
2
意义:
定语从句修饰先行词;同位语从句解释说明前面名词的内容,是并列关系,可以任意去掉名词或从句不会影响句意。
it
is
the
fact
that
he
told
me.
定语从句,tell
sb
sth.所以that做从句中的宾语,他告诉我的消息(但并不知其内容)
it
is
the
fact
that
he
won
the
game. 同位语从句,从句中不少成分,that
不做成分没有意义。he
won
the
game就是消息的内容。可以去掉任意一项,it
is
the
fact\
it
is
that
he
won
the
game.
从句子的形式上来看,同位语从句和定语从句非常相似,都可以由连词that来引导。但是that在同位语从句与定语从句中的作用和功能都是不同的。
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