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    精英家教网 > 高中英语 > 题目详情
    16．Much time __________ sitting at a desk，office workers are generally troubled by health problems．（　　）
    A．being spentB．having spentC．spentD．spending

    分析 句意：因为大部分时间都坐在办公桌前，所以办公室职员一般都受健康问题的困扰．

    解答 考查独立主格结构．由句子结构可知，分词的逻辑主语much time与主句主语office workers不一致，所以是独立主格结构．逗号后为主句，逗号前为独立主格结构作原因状语．time与spend是被动关系，故填spent．

    点评 解答此类题目首先要分析句子结构找出主句，同时要注意主句的主语与分词的逻辑主语是否一致，如果不一致，则为独立主格结构．然后再分析分词的逻辑主语与动词的主被动关系，主动用doing，被动用done．

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