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(单选题)_ ___ the policeman a pproaching, the driver brought his car to a halt quickly.A. SawB. Having seenC. SeenD. Seeing

(单选题)_ ___ the policeman a pproaching, the driver brought his car to a halt quickly.

A. Saw

B. Having seen

C. Seen

D. Seeing

题目解答

答案

D. Seeing

解析

本题考查非谓语动词作状语的用法。解题关键在于：

判断逻辑主语：非谓语动词的逻辑主语应与句子的主语一致（本题中是"the driver"）。
确定动作关系：动词与逻辑主语之间是主动关系，且表示原因状语（司机因看到警察而停车）。
排除干扰项：注意区分完成时态（having seen）、被动语态（seen）与主动进行时态（seeing）的语境适用性。

选项分析

A. Saw

错误原因：saw 是谓语动词的过去式，需搭配连词（如when, as）或that从句，单独使用结构不完整。

B. Having seen

错误原因：having seen 表示完成时态，强调动作先于主句发生。但句中"看到警察"与"停车"是同时性动作，无需强调整先整后。

C. Seen

错误原因：seen 是过去分词，表示被动关系。但司机是"主动看到"警察，不符合语境。

D. Seeing

正确性：seeing 是现在分词，表示主动进行的动作。作原因状语时，完整表达为"Seeing the policeman approaching, the driver..."，符合逻辑主语一致性和主动语态要求。

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