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    18．据气象专家说，他们非常担心沙尘暴对人们健康的影响．（be concerned about，influence）According to weather experts，they're quite concerned about the influence of sandstorms on people's health．．

    分析 据气象专家说，他们非常担心沙尘暴对人们健康的影响．

    解答 答案：According to weather experts，they're quite concerned about the influence of sandstorms on people's health．
    解析："据气象专家说"即According to weather experts"根据气象专家"，be （quite） concerned about 意为"对…（十分）担心"；另外根据所给的influence"影响"一词可知，本题还考查the influence （of+名词/代词）on"…对…的影响"这一固定短语．

    点评 本题考查句子翻译，做此类题目时一定要根据中文及英文题干确定需要翻译的成分，再找出与之对应的英文并考虑各成分是否有形式的改变．

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