内容正文:
高考语法名词性从句复习及练习
一.名词性从句梳理
基础知识回顾
知识讲解
主语从句:
做主语用的名词性从句,因其在复合句中做主语,又称主语从句,引导主语从句的有连词that ,whether, 连接代词who ,what ,which, 连接副词when,where, how, why等。
1)从属连词:that, whether等.
that 引导主语从句只起引导作用,本身无实际意义,在主语从句中不充当任何成分,但不能省略。
That he will win is certain.他肯定会赢。
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
注意: 由that 引导的主语从句有时为了使句子结构平衡, 避免 “头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。 例如:
That he will refuse this piece of advice is impossible.
It is impossible that he will refuse this piece of advice.
it为形式主语
2. That they should like each other is natural.
It is natural that they should like each other.
这样就构成了下面一些常用句型:
1) It is + n. +从句
It is a pity/shame that... 遗憾的是…… It is a surprise that…令人惊奇的是…
It is a fact that……是事实 It is common knowledge that……是常识
2) It is + adj. +从句
It’s certain that… 肯定… It is possible that... 很可能……
It is unlikely that... 不可能…… It is obvious that… 很明显…
It is necessary \important
atural\... that…+(should) +do…
3) It +不及物动词+从句