5．Professor Li's health was completely___________ by ten years of hard work．（　　）
A．hurtB．injuredC．ruinedD．damaged

分析 由于10年的努力工作，李教授的健康完全被毀了．

解答 答案是C．考查動詞的辨析．A．hurt傷害（身體或情感），B．injured（意外）受傷，C．ruined毀壞（比喻含義）D．damaged破壞（不同程度的）．句意是：由于10年的努力工作，李教授的健康完全被毀了．故選C．

點評 解答此類問題首先需要理解每個單詞的基本含義，并注意交叉含義間的區(qū)別，了解其特殊用法及習慣搭配等特點，然后結合語境選擇正確答案．

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