表示“做某事的时机到了”的英语句型是什么呢？大学英语培训的李老师告诉我们，可以使用“It's (high/about) time that...”这个英语句型，比如我们常说的“你该去写作业了”或“我该去买双 新鞋了”这种句子中都可以使用这个句型。
句型解析:
1.句型“It's (high/about) time + that...”是个常用句型，that引导的是从句，表示“该做……的时候了”，而实际上是意味着“早该做某事而没有做”，所以从句需要用虚拟语气来传达一种遗憾 、急迫、批评、抱怨等情绪，多是在催促某人尽快做某事。从句的动词形式要用一般过去式。有时，about和high可以省略。
例句：
It's about time you bought a new car.
你该买新车了。
It's high time you made up your mind.
你该做决定了。
It's time we ordered dinner.
我们该点菜了。
2.It is time + that + S + should + 动词原形
此句型若加上助动词should，则后面必须加动词原形。
例句：
It is time that you should go to bed. = It is time that you went to bed.
你该去睡觉了。
情景模拟：
Wait a minute. Why I couldn't start my engine?
It's about time you bought a new car.
稍等一会儿，为什么我发动不了引擎？
你该买新车了。
It's time you had made a choice.
But I still can't decide which one I want.
你该做出选择了。
但我还是无法决定我想要哪个。
It's time we ordered dinner.
Let's wait for Tom a little longer.
我们该点菜了。
让我们再多等汤姆一会儿吧。
It's high time you made up your mind.
But I want to think all the projects over.
你该做决定了。
但是我想再把所有的方案好好考虑一下。
