高二英语情态动词+have的用法

　　情态动词是英语中的必考项目，你对高中英语情态动词这部分知识掌握的够好吗?下面是玉溪一对一家教老师为大家整理的有关高二英语情态动词+have的用法的介绍，以供参考。

　　1) may(might) have + done sth, can (could) have + done sth 表示过去，推测过去时间里可能发生的事情。 Philip may (might) have been hurt seriously in the car accident. Philip can (could) have been hurt seriously in the car accident.

　　2)must have +done sth，对过去时间里可能发生的事情的推测，语气较强，具有"肯定"，"谅必"的意思。 ---Linda has gone to work, but her bicycle is still here. ---She must have gone by bus.

　　3) ought to have done sth, should have done sth本应该做某事，而事实上并没有做。否定句表示"不该做某事而做了"。 You ought to (should) have been more careful in this experiment. He ought not to have thrown the old clothes away.(事实上已扔了。) ought to 在语气上比should 要强。

　　4) needn't have done sth 本没必要做某事 I dressed very warmly for the trip, but I needn't have done so. The weather was hot.

　　5) would like to have done sth 本打算做某事 I would like to have read the article, but I was very busy then.

　　英语中关于情态动词的题目有一定的规则和技巧，只要你掌握了这些规则和技巧，答好英语情态动词的这部分习题是非常有希望的，以上我们玉溪学大教育网为您讲解的方法，仅供你参考。