摘要:所谓定情感就是在解情态动词题时.应确定所需情态动词是否符合特定的情感需要.例1: The fire spread through the hotel very quickly but everyone __get out. A.had to B.would C.could D.was able to 析:选D.根据句意可知.虽然大火迅速蔓延至整个旅馆.但每一个人最终都能够逃出去.在表“能够 时be able to往往表“经过克服困难或经过磨难之后终于能够做某事 .带有强烈的感情色彩.而can则不具有这种感情色彩.所以从该句句意可看出.所有人都要从大火中逃生.一定克服了难以想象的困难.应用be able to表强烈的感情色彩. 例2: You are late again.you ___an hour earlier. A.should come B.ought to come C.should have come D.must have come 析:选C.该句语境为:你迟到了.你应该一个小时之前就到了.但实际上你没有到.从而表达一种遗憾的感情色彩.所以应用should have done或ought to have done来表示本来应做.而实际未做所产生的遗憾之情. 例3: You___the exam.but you didn't study hard. A.could pass B.should pass C.could have passed D.were able to 析:选C.该句句意为:你本来能通过这次考试.但你学习不认真.实际上你没有通过这次考试.很明显该句应用could have done来表示你本来能够通过这次考试.但实际上你没有通过的遗憾之情.

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