问题
选择题
We _______the letter yesterday, but it didn”t arrive.
A.must receive
B.ought to receive
C.must have received
D.ought to have received
答案
答案:D
题目分析:考查情态动词用法。本句中的关键词在于yesterday,说明本句是对过去情况的虚拟或者推测,都要使用“情态动词+have done”;排除AB;must have done一定做了某事,是对过去发生的事情的肯定推测;ought to have done本应该做某事实际上却未做;句意:我们昨天本可以收到那封信的,但是我们却没有收到。故D正确。
点评:本题是高考必考考点,一定要牢记句型意思。must have done过去肯定做了某事。should have done 本应该做而实际未做。can’t have done 过去不可能做了某事;shouldn’t have done 本不应该做而实际做了。 need have done 本有必要做某事;needn’t have done 本没有必要做某事;注意没有 mustn’t have done的形式。