推荐回答(4个)
一、同位语从句和定语从句从表面来看十分相似,但实质上是截然不同的两种从句:
(1)同位语从句所修饰的词是有限的一些抽象名词,而定语从句就没有这种限制。 同位语从句经常用于下列有限的几个词后: hope(希望),idea(想法), news(消息), order(命令), fact(事实), question(问题),reason(理由),belief(相信),doubt(怀疑),evidence(根据),conclusion(结论),truth(真理),result(结果)等。
(2)句法功能不同。 同位语从句同它所修饰的名词在内容上是等同关系,在句中的语法作用处于同等地位。而定语从句说明前一名词的性质、特征,对先行词进行修饰、限制,是先行词不可缺少的定语。
(3)引导词that在同位语从句中不作句子成分;而在定语从句中必作句子成分,是从句所修饰的词的替代词。试比较: The fact that the Chinese people invented the compass is known to all.中国人发明指南针这个事实是众所周知的。(同位语从句) The fact that we talked about is very important.我们谈论的这个事实很重要。(定语从句)
二、同位语从句和定语从句在形式上基本相同,都是跟在名词或代词之后,且又常由that引导。但它们的句法功能却是不同的,我们可以从三个方面来加以区别。
(1)根据that来区别。引导定语从句的that是关系代词,除了起连接主句和从句的作用外,还代替先行词在从句中充当一个成分。而且这个that还常可以用which来代替。引导同位语从句的that是个连词,只起连接主句和从句的作用,在从句中不充当任何成分,也不能用which来代替。
例如:
The fact that(which) we talked about is very important.我们所谈论的那个事实很重要。(that在从句中作about的宾语)
The fact that he succeeded in the experiment pleased everybody.他实验成功这个事实使我们大家很高兴。(that只起连接作用)
The news that you heard is true.你听到的消息是真的。(that在从句中作heard的宾语)
Here comes the news that some tourists from America will come to our village.消息传来,说一些美国旅游者要来我们村。(that只起连接作用)
(2)根据先行词来区别。 定语从句的先行词可以是人,也可以是具体事物或抽象概念。定语从句在复合同中相当于形容词,对这些先行词起修饰、描述或限制的作用。
例如:
同位语所进一步说明的词则是抽象意义的概念,如:fact,result,discovery,news,hope,reason,proposal,thought等。同位语的作用相当于名词,对前面的名词给予补充说明或进一步解释。
例如:
(3)根据引导词来区别。 如果引导从句的词为when,where,why或者how,而其前面的名词又分别表示时间、地点、原因或方式方法等意义,则它们为关系副词,引导的是定语从句。
例如:
而这些连接副词与前面的名词意义不相关时,这些词便是连接副词,引导同位语从句前面的名词往往也是idea,truth,news等。
例如:
同位语从句就没有关系代词,称为引导词,你的问法就不对!看下面的解释吧!应该好理解!
举两个例子:
1.
The
news
that
he
will
come
back
is
true.
(同位语从句)2.
The
news
that
he
told
me
is
true.
(定语从句)
区分方法有两种:
1.
同位语从句中从句是被修饰词的具体内容,是它的补充说明,定语从句中从句是起限定作用,不是被修饰词的具体内容。
两句中的被修饰的词都是news,但是第一句中的从句that
he
will
come
back是news的具体内容(补充说明:消息是他将会回来);而第二句that
he
told
me就不是news的具体内容了,而是限定他告诉我的消息。
2.
把被修饰的词和从句用be动词连成一句话,句子成立的就是同位语从句,不完整的是定语从句。
比如,第一句就是
the
news
is
that
he
will
come
back(消息是他将会回来)句子完整。第二句是
the
news
is
that
he
told
me(消息是他告诉我,告诉什么却没有说)句子不完整。所以第一句是同位语从句,第二句是定语从句了。
你好,
同位语从句和定语从句最大的区别就是同位语从句只是起连接的作用,在从句中不充当任何成分,同位语从句的连接词较多的是用that连接;定语从句的关系代词、关系副词则在从句中会充当一定的成分。
如:he
draws
the
conlcusion
that
she
will
not
come.(that引导同位语从句)
he
told
us
a
story
which /
that
was
about
the
ghost.(which
在定语从句中作主语)
he
knows
the
truth
that
every
one
is
equal
in
front
of
the
law.(that
引导同位语从句)
it
was
the
day
when
i
first
met
him.(when在定语从句中作时间状语)
可以,这确实是区别这两个从句的方法
但是从句还是要理解从句本身的作用最为清晰,比如定语从句,显然就是充当定于
你说的同位语从句,显然就是同位语成分,就是名词性从句。
所以根据从句性质区分,判断在句子里的充当的位置。就永远不会错了
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