2016年江西成考英语情态动词归纳及练习二

　　一、must+have+ed分词：用于肯定句，表示对过去情况的一种肯定推测，表示“肯定，一定”

　　1）It around nine o'clock               when I drove back home because it was already dark.

　　[A] had to be [B] must have been [C] was to be [D] must be

　　2）John's score on the test               is the highest in the class.

　　[A] he should study last night

　　[B] he should have studied last night

　　[C] he must have studied last night

　　[D] he must had to study last night

　　3）After searching [A] for evidence in the house，the police concluded [B] that the thief must have come in [C] through the window and stole [D] the silver while the family was asleep.

　　二、may （might）+have+ ed分词：用于肯定句和否定句，表示对已发生事情的不肯定的推测，相当于“可能，大概，”其中might较may 语气更弱，把握更小

　　She might have gone to see her doctor last week，but I am not sure.

　　上星期或许她去看医生了，但我不敢肯定。

　　Don't worry，your husband may not have been hurt seriously.

　　别急，你丈夫也许伤得不厉害。

　　三、should（ought to）+have+ ed分词：肯定句表示过去本应发生的事却没有发生；否定句表示已发生了本不该发生的事。前者可译为“本应，”后者为“本不该”

　　You should have apologized to her for