解放军文职考试： it seems/happens+that 从句

　　(4)It + 不及物动词 + that 从句[1]

　　另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：

　　It is necessary (important, natural, strange, etc.) that …

　　It is suggested (requested, proposed, desired, etc.) that…

　　(5) it seems/happens+that 从句

　　众所周知的几种表达方式

　　(1)It is known to us that.

　　(2)As is known to us.

　　(3)what is known to us is that.

　　it引导的强调句结构：It is/was+被强调部分+that/who+句子其它部分。

　　eg:My father did the experiment in the lab yesterday evening.

　　强调主语：It was my father who did the experiment in the lab yesterday evening.

　　强调宾语：It was the experiment my father did in the lab yesterday evening.

　　强调时间：It was yesterday evening that my father did the experiment in the lab.(注意不用when)

　　强调地点：It was in the lab that my father did the experiment yesterday evening.