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    14．He ______ his experiments and made a great contribution to our country．（　　）
    A．dived himself intoB．devoted himself into
    C．devoted toD．dived into

    分析 他全身心的投入到他的实验里，为我们的国家做出了巨大的贡献．

    解答 答案：B．根据 made a great contribution to our country（为我们的国家做出了巨大的贡献．）可知前半句表示他全身心的投入到他的实验里，be devoted to 和devote oneself to 表示奉献于，专心于，因此答案是B．A和D表示头朝下跳入水中，与句义不符，C应该改成被动．

    点评 考查动词短语辨析． 一些短语既可以用主动也可以用被动表示同一个含义，例如
    He buried himself in his work．=He was buried in his work．他埋头工作．

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