虚拟语气与真实语气相反，表示说话人的建议 、假设 、愿望。 一、一个句式：It is high/about time thatdid/ should do(should不可省略）(早）该做某事了，该结构往往用来表示早该做而未做的事情。 填空： It is high time that we (go) to bed. It is time that the children (have) lunch. It is about time that you (give) the little girl a hand. 注意：该结构不可混淆“It is time for sth”或者“It is time for sb to do sth”，意为“是某人做什么的时间了”。 It is time for class. 到上课的时候了。 It is time for her to answer the q
