题目内容
7.In summer milk will quickly go bad_____ it is put into a fridge.( )A. | though | B. | unless | C. | because | D. | once |
分析 在夏天牛奶很容易变质,除非它被放进冰箱里.
解答 答案:B though虽然,尽管,引导让步状语从句;unless 除非,如果不,引导条件状语从句;because 因为,引导原因状语从句;once曾经,一旦,一次.根据In summer milk will quickly go bad和it is put into a fridge前后句子的对比,我们可以推断出后者是一种假设,如果牛奶不被放进冰箱它就很容易变质,所以只有unless有这种意义,其后引导一个条件状语从句.故选B.
点评 此题考查条件状语从句的用法.做题时要联系前后句,搞清楚主句和分句的关系,然后再结合选项挨个排除,选择一个具有相关意义,能够和句意相符的正确的连词连接前后句子.
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