题目内容
4.America's car industry will continue to break down some progress is made to close the gap.( )A. | since | B. | unless | C. | because | D. | though |
分析 除非取得一些进步来缩小差距,否则美国汽车工业将会一直败落下去.
解答 答案B.
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.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.because"因为",引导原因状语从句.though"尽管,虽然",引导让步状语从句.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B.=America's car industry will continue to break down if some progess is not made to close the gap.
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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