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    8．An individual human existence should be like a river-small at first，narrowly contained within its banks，and___passionately past rocks and over waterfalls．（　　）
    A．to rushB．rushingC．rushedD．rush

    分析 每个人的生活都应像河水一样--开始是涓涓细流，被紧紧地依附在它的岸堤上．接着热情奔放地冲过岩石和瀑布．

    解答 答案选B
    这里有两个伴随状语，一个是"contained within its banks，"另一个是"___passionately past rocks and over waterfalls"，river与rush是主动关系．所以用现在分词做伴随状语．故选B

    点评 现在分词与过去分词都可以做伴随状语，只是现在分词与名词构成主动关系，而过去分词与句中的名词构成被动关系．

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