it is high time that的用法

It is (high) time that表示“是该做......的时候了。后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。例句：It is high time that we should tell him the truth.是我们该告诉他真相的时候了。

It’s high/about/good time that+从句句式的用法

这种句式常用it作形式主语，that从句为主语从句，句中常用一般过去式或“should+do”的虚拟语气结构。注意：其中should不可省略; time前不加定冠词the. 

结构：It’s (high/about/good)time that sb did/should do sth

例如：是时候为梦想拼搏奋斗了。It’s high/good/about that we struggled/should struggle for our dream. 

练习：玛丽是个空谈家，是她该做些什么，而非空谈的时候了。Mary is a great talker. It’s high/about/good that she ______ something instead of just talking.

答案：did/should do