Question

It is high time that这个短语是什么意思

Answer 1

意思是：该是干……的时间了；恰是干……的时候了
注意要用虚拟语气，是虚拟语气一个经典的句型。
两种用法.
It is (high) time that后面的从句谓语动词
要么用过去式或者用should+动词原形,但should不可省略.
如：
It is high time that the children went to school.
It is high time that the children should go to school.

Answer 2

It is high time that
该是做……的时候了；早就该……了；是…的时候
例句
It is high time that the old plane was scrapped.这架旧飞机该报废了。
It is high time that the old plane be scrapped.这架旧飞机该报废了。
It is high time that such practices were ended.该是结束这种做法的时候了。
It is high time that they were taught a lesson.早就该教训他们一顿了。
It is high time that we began the meeting.正是我们开会的时间了。