题目内容
4.The famous writer often says that he ________ so much without the support and encouragement from his wife.( )A. | shouldn't achieve | B. | shouldn't have achieved | ||
C. | couldn't achieve | D. | couldn't have achieved |
分析 这位著名的作家经常说,要没有他妻子的支持和鼓励,他不可能取得如此的成就.
解答 答案:D句中without表示条件,如果没有;句意表达的是与过去事实的相反假设,要用虚拟语气;对过去的虚拟,主语要用情态动词加完成时态来构成;shouldn't have done本不应该,不符合句意.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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