题目内容

—How is the debate of your essay?

—It ____ well, but I ____one of the key points.

A.might work; hadn’t forgot                B.needn’t have worked; forgot

C.could have worked; forgot                D.would work; hadn’t forgot

 

【答案】

C

【解析】

试题分析:句意:--你的论文答辩怎样?--它本来进行地很好,但是我忘了其中的一个重点。needn’t have worked表示过去没有必要做好,很显然不符合语境;这里指过去本能进行地很好,所以用could have worked,多于回答者来说答辩已经结束,忘记重要的内容也是发生在过去,所以应该用过去式,故选C。

考点:考查情态动词的用法。

点评:本题难度适中。情态动词是高中阶段的重要的语法项目,需要考生掌握它们的不同的语法及区别,尤其是情态动词的完成式表示对过去的推测,不同的情态动词推测的可能性大小上不同,需要考生理解它们的不同的语法。

即学即练:—I heard the phone ringing in the office next door.

—You ________ it. They haven’t got a phone yet.

A.couldn’t hear        B.couldn’t have heard

C.didn’t hear           D.wouldn’t have heard

解析:B。由句意可知此处是对过去的事情表示推测,那么否定句用“can/could not+完成时”,故选B。

 

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