题目内容
19.Without joint efforts of all the members,we ______ our task in such a short time.( )A. | shouldn't accomplish | B. | shouldn't have accomplished | ||
C. | couldn't accomplish | D. | couldn't have accomplished |
分析 句意:如果没有所有成员的共同努力,我们不可能在如此短的时间里完成任务.
解答 答案:D.根据题干中的without可知,此句是含蓄虚拟条件句,相当于if条件从句if it hadn't been joint efforts of all the members,这里表示与过去的虚拟,主语用:主语+would/should/could/might+have done.而"shouldn't have done"表示过去本不应该做某事而做了,意思不对,故选D.
点评 含蓄虚拟条件句中的假设条件不是以条件从句的形式来表达的,而是隐藏在上下文中或由with、without、otherwise、or、but for等词来暗示,相当于if引导的虚拟条件句.所以解题时要注意上下文的语境和这些关键词的提示.
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