题目内容
15.When he came back home,he found that great changeshad taken in his hometown.(take)分析 当他回到家,他发现他的家乡发生了巨大的变化.
解答 答案是had taken.本题考查过去完成时,过去完成时的根本概念是"过去的过去";题干中found为过去,家乡发生变化是在found之前,所以是过去的过去,故用过去完成时的形式had taken.
点评 本题是要求用所给动词的适当形式填空,解题时首先考虑句中需要的是谓语动词还是非谓语动词;其次,如果是谓语动词关注时态、语态和数的变化;如果是非谓语动词要联系非谓语的基本用法判断非谓语的形式.
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