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    7．Smoking is so harmful to personal health that it kills ______ people each year than automobile accidents．（　　）
    A．seven more timesB．seven times more
    C．more than seven timesD．seven times as many

    分析 抽烟是对人的健康是如此有害以至于每年死于抽烟的人比死于车祸的人多七倍．

    解答 答案：B．
    分析句子的结构可知，本句考查倍数表达中的num+times+形容词（或副词）比较级+than…；由此可排除A和C；而D项的表达应该是num+times+as+形容词（或副词）的原级+as，所以D项错误；故选B．

    点评 解答此类问题，首先需要理解题干所要表达的意思，其次是观察所给选项运用的知识点，结合语意选择正确的表达方式．

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