题目内容

9．     the course very difficult，she decided to move to a lower level．（　　）
A．FindB．FindingC．To findD．Found

分析 句意为：她发现这门课程非常难，决定转学一门较低水平的（课程）．

解答 答案：B  本题使用排除法． 根据句子结构可知，the course very difficult在句中作原因状语（非谓语），因此排除A选项；find的逻辑主语是she，并且存在主动关系，因此排除D选项；C选项表示目的，根据句意可以排除；she与find之间是逻辑上的主动关系，故用现在分词短语作状语．所以本题选择B．

点评 非谓语动词的判定方法：考虑句中谓语动词以及其它词语同非谓语动词的关系和对非谓语动词形式的限制，以便选用正确的非谓语动词形式．

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