题目内容
12._______you work hard,you won't solve this problem.( )| A. | Even | B. | As | C. | Unless | D. | Since |
分析 除非你努力工作,否则你不会解决这个问题的.
解答 答案C.
even adv.即使,在句中作状语,even没有连词的用法,故可首先排除A.as意思是"随着"时,引导时间状语从句;意思是"因为"时,引导原因状语从句;意思是"尽管,虽然"时,引导让步状语从句.unless"除非,如果不",在意义上相当于if…not,因此在有些场合中unless与if…not可互换使用,引导条件状语从句.since意思是"自从…以来"时,引导时间状语从句;意思是"既然"时,引导原因状语从句.分析可知前后两句话之间是逻辑上的"条件"关系,再结合句子所表达的意思可知答案选C.
点评 本题考查从属连词的用法.连词的用法辨析,要注意分析主从句之间的逻辑关系,再确定相应的连词,同时注意不同的连词的语义及用法区别.
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