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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實驗里，為我們的國家做出了巨大的貢獻．

解答 答案：B．根據 made a great contribution to our country（為我們的國家做出了巨大的貢獻．）可知前半句表示他全身心的投入到他的實驗里，be devoted to 和devote oneself to 表示奉獻于，專心于，因此答案是B．A和D表示頭朝下跳入水中，與句義不符，C應該改成被動．

點評 考查動詞短語辨析． 一些短語既可以用主動也可以用被動表示同一個含義，例如
He buried himself in his work．=He was buried in his work．他埋頭工作．

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