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    10．A good diet isbeneficialto health．良好的饮食有益于健康．

    分析 beneficial

    解答 答案：beneficial．
    分析句子的意思及结构可知，本句考查短语be beneficial to sb对某人有益，故答案为beneficial．

    点评 做翻译填空的题目要注意解题步骤：1．分析每道题目需要完成部分的语法属性　2．划出已给出部分的中心词．依据空格前后成分，确定空格的语法属性：词性、单复数、时态等．

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