强调句型 主语从ju我想知道的是强调句型和形式主语从句的区别,形式主语从句!我知道他俩都是it is...that(wh

非常简单.
以Tom works hard,and that is good 为例.
1 It is good that Tom works hard.--------主语从句
2 It is Tom that works hard------强调句
在1 中,主语Tom仍然存在.在2中,Tom这个字不在works的前面了,移到that前面了.
由此我们可以看出,主语从句的从句部分是完整的,而强调句的被强调部分移到that的前面了,它的原始句也就相对不完整了.完整与不完整,这就是主语从句与强调句和的区别.

看例句 It is obvious that he is very clever.
It is a girl who is very clever.
第一句话是典型的形式主语，还原成正常语序是 That he is very clever is obvious.that不能省，第二句话如果去掉It is ······who,句子仍然是正常语序，就是 a g...