内容正文:
从 句
从句
名词性从句
1)主语从句
2)宾语从句
3)表语从句
4)同位语从句
定语从句
状语从句
主语从句
主语从句是在复合句中充当主语的从句,通常放在主句谓语动词之前,或由形式主语it代替,而本身放在句子末尾。
That she was chosen made us very happy.
Whether he will come is not clear.
It is not important who will go.
It is still unknown which team will win the match.
用it 作形式主语的结构
(1) It is +名词+从句
It is a fact that …
It is an honor that
(2) it is +形容词+从句
It is natural that…
It is strange that…
(3) it is +不及物动词+从句
It seems that…
It happened that…
(4) it +过去分词+从句
It is reported that…
It has been proved that…
it 作形式主语和it引导强调句的比较
it 作形式主语代替主语从句,主要是为了平衡句子结构,主语从句的连接词没有变化。
It is a pity that you didn’t go to see the film.
It doesn’t interest me whether you succeed or not.
而it引导的强调句则是对句子某一部分进行强调,无论强调的是什么成分,都可用连词that。被强调部分指人是也可用who/whom。
It is in the morning that the murder took place.
It is John that broke the window.
主语从句不可位于句首的五