题目内容
20._____ I admit that there are problems,I don't think that they cannot be solved.( )A. | Unless | B. | Until | C. | As | D. | While |
分析 虽然我承认有问题,但我认为他们能被解决.
解答 答案D.
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.until"直到",引导时间状语从句.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.while表示"当…的时候",引导时间状语从句;意为"尽管、虽然",引导让步状语从句;意为"而、但是",引导比较状语从句.分析可知前后两句话之间是逻辑上的"让步"关系,可排除A和B;as和while都可引导让步状语从句,但是as必须用在使用倒装的句子中,但本句没使用倒装结构,可排除C;结合句子所表达的意思可知答案选D.
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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