题目内容
12．Many families have their own cars．__________，it causes the terrible air problem．（ ）| A． | Because | B． | If | C． | However | D． | For |
分析 很多家庭拥有私家车，然而，这引起了很糟糕的空气污染问题．
解答 答案：C；
根据语境以及上下文，本题考查的是连词的用法．根据语境推测句意是"很多家庭拥有私家车，然而，这引起了很糟糕的空气污染问题．"，根据前后句之间的关系表转折，所以用连词However"然而"；故选C．
点评 连词在句子中主要起联系上下文的作用，他们之间的区别就是表示逻辑关系的不同，所以在解题时先要理解上下文含义，然后根据上下文逻辑关系选择合适的连词．连词的用法都比较多，语义之间还有交叉，熟记其基本应用规则，了解其区别，注意固定搭配对象，是做好此类题型的关键．
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