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    3．The number of people employed inagriculture（农业） has fallen in the last decade．

    分析 在过去十年间，农业从业人数已经下降．

    解答 agriculture   agriculture是名词，意为"农业"，介词in后面加名词．the number of…：…的数量，employed是过去分词短语做后置定语，表被动，修饰前面的名词people，表示"被雇佣"．

    点评 考查名词的词义．在熟知单词词义的基础上要注意名词的数的变化．

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