题目内容
7.A 7-year-old boy received an operation on Tuesday successfully _______ he has many other health problems.A. | since | B. | however | C. | though | D. | therefore |
分析 一个七岁大的男孩在周二成功第接受了手术,尽管他还有许多其它的健康问题.
解答 答案C.therefore是副词,不能直接用来连接两个句子,故D不正确.since做"自从…以来"时,引导时间状语从句;做"既然"时,引导原因状语从句.however"不论如何,无论如何",引导让步状语从句.though"尽管,虽然",引导让步状语从句.分析可知前后两句话是逻辑上的"让步"关系,可排除A项,再根据句子所表达的意思"尽管他还有许多其它的健康问题"可排除B项,故答案选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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