题目内容

3.-Is Tommy still angry now?
-Yes.You ______ him so hard in front of others yesterday.(  )
A.couldn't have blamedB.wouldn't have blamed
C.mustn't have blamedD.shouldn't have blamed

分析 -Tommy现在还在生气吗?-是的.你昨天本应该当着别人的面那样严厉地批评他.

解答 答案:D
句意表达的是与事实相反的假设,要用虚拟;表示对过去事实的相反假设,要用情态动词加现在完成时态来构成;couldn't本不可能,wouldn't本不会,mustn't不能构成虚拟,shouldn't本不应该.故选D.

点评 虚拟语气是表示与事实相反的假设,构成方式有:对现在或将来,条件句中用一般过去时态,主语用情态动词加动词原形;对过去,条件句中用过去完成时态,主语用情态动词加完成时态.学习时,要牢记构成方式.

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