题目内容
7.One is to make every effort _______he can achieve something.( )A. | when | B. | unless | C. | since | D. | before |
分析 一个人在取得一切成功之前必须要尽全力地努力.
解答 答案:D
A when,在…时; 可以引导时间状语从句;B unless,除非,如果不;可以引导条件状语从句;C sicne自从…以来;…以后;既然;因为;可引导时间状语从句及原因状语从句;D before 在…之前; 在…以前; 比…早些; 与其…;可以引导时间状语从句.根据句意确定空格处选引导时间状语从句的连词,表示"在…前",用before,故选D项.
点评 解答本题关键在于理解前后句之间的关系,如时间先后;顺承;并列;让步;条件等;然后根据连词词意确定相关词语.
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