请问这句话是不是虚拟语气呢？

Question

Obviously, it is high time that we took some effective measures to solve it.
是省略should的虚拟语气吗？可是 took 怎么不用原型呢？

Answer 1

不是虚拟语气。It's （high）time...表示“该是……的时候了”
It's time + that clause，that可省略，time可由high,about等形容词修饰，从句中的谓语动词需要用虚拟，有两种形式：
①用动词的过去式(be用were)；
②用shoud + 动词原形（should不能省略)。
此句型为虚拟语气句型，表示“现在某人该做某事了”。含有该事早该去做而未做，现在去做似乎都为时已晚的意思。例：
It';s time （that）we went to bed.
我们该去睡觉了。
It's high time that the article were published.
发表这篇文章是适时的。
It's time you should do cleaning.
你该去打扫卫生了。

Answer 2

这是虚拟语气。
It is high time that 从句要用虚拟语气，可以用两种形式表达：1，谓语动词用一般过去时，如楼主的这句正是属于这种情况；2，谓语动词用should +动词原形。以第1情况较为常见。

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Answer 3

是虚拟语气。It is...that...表强调，而it is...time that sb +过去式是一种固定句型