题目内容
1.-Does your father smoke?-No,it's two years he smoked.( )
A. | before | B. | since | C. | after | D. | when |
分析 -你父亲抽烟吗?
-不,他戒烟两年了.
解答 答案:B
特殊句型,it is+时间段+since从句,从句中动词如果是持续性动词,时间是从动作结束时算起,意思是不做某事多长时间了;如果要表示做某事多长时间了,从句动词要用瞬间动词.题干给出的是否定回答,表示不抽烟两年了,是该句型的典型用法.故选B.
点评 从属连词是连词的一种,用来引导名词性从句和状语从句.大致可分为三大类:that(无词义,不做成分)if,whether (表达是否的意义,但不做句子成分); 连接代词:who,whom,whose,what,which,whatever,whoever,whichever(有词义,在句子中可作主语、表语、宾语);连接副词:when,where,why,how,how many,how long,how far,however,whenever,wherever (有词义,作从句的状语).学习时,要注意区分和掌握.
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