It is known to all that the earth is round.这句话属于什么句型?It is known to all that the earth is round.这句话属于什么句型?为什么?

问题描述：

It is known to all that the earth is round.这句话属于什么句型?
It is known to all that the earth is round.
这句话属于什么句型?
为什么?

答

强调句型
除去it is..that 后的句子
the earth is round known to all 仍然是一个完整的句子

答

最标准的答案是： it 是形式主语，真正的主语是that引导的从句，英语中为了避免头重脚轻（即主语过长）常常用it做形式主语，that引导主语从句。
That the earth is round is known to all.

答

主语从句吧，it 是形式主语，代替了that 从句。可以写成that the earch is round is known to all.

答

宾语丛句
it 作形式主语

答

It is... that.... 强调句

答

It is... that.... 强调句
it 作形式主语

答

宾语丛句
it 作形式主语,指the earth is round

答

众所周知,地球是圆的.
it是形式主语.作为形式主语的it并无实际语义,只是为满足语法上的需要,避免句子头重脚轻,它代替的是句子的逻辑主语.这句话真正的主语是"the earth is round"

答

这应该是个主语从句,IT 做形式主语,而真正的主语是that 后的从句.

答

主语从句。
it做形式主语，真正的主语应该是...the earth is round.