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    精英家教网 > 高中英语 > 题目详情
    _______environmental damage is done, it takes many years for the ecosystem to recover.
    A．Even if B．If only C．While D．Once
    D

    试题分析：考查连词辨析。A即使，尽管；B要是…就好了；C当…时；然而；尽管；D一旦；句意：一旦环境被破坏，就要花很多年的事件让生态系统恢复过来。
    点评：此题主要考查连词的辨析，选择连词主要是看前后句的关系，因果关系用表因果的连词，转折关系用转折连词，并列关系用并列连词，要求考生具有一定的句子分析能力和词义辨析能力。
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