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【题目】Life doesn’t count for much _____ you’re willing to do your small part to leave our children a better world.

A. unless B. when

C. though D. if

【答案】A

【解析】

考查状语从句连词。A. unless除非,如果…;B. when时;C. though尽管;D. if如果;句意:如果你不愿意付出你的努力给孩子们留下一个更加美好的世界,生活就没有意义。根据句意可知本句应该使用连词unless引导条件状语从句。故A正确。

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