题目内容

7．Upon arriving home，I was surprised to find the paper I had had _____ was missing．（　　）
A．to be preparedB．to prepareC．preparingD．prepared

分析 一到家我就惊讶地发现我准备好的论文不见了．

解答 答案：D
题干中I had had作paper的后置定语，是一个定语从句，连接词that省略了；句中had had是使役动词have的过去完成形式；句中prepare与paper之间构成动宾关系，要用被动；have sth done让某物被怎样，即I had had the paper prepared．故选D．

点评 非谓语动词是常考的语言点．有三种构成方式：现在分词表示主动和进行的动作；过去分词表示被动和完成；动词不等式表示未发生的动作．学习时，要注意区分和掌握．

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