题目内容
17.Tony couldn't remember ______he had turned off the computer before he left the office.( )A. | that | B. | where | C. | when | D. | whether |
分析 托尼不记得在离开办公室之前他是否关掉电脑.
解答 答案D.
"______he had turned off the computer before he left the office"做动词remember的宾语.分析该部分的句子成分可知:主语是he,had turned off是复合谓语,the computer是宾语,before he left the office是宾语从句的时间状语,宾语从句是"主谓宾+时间状语"的结构.因为宾语从句中已有时间状语,可排除连接副词when,故C不正确.连接副词where引导宾语从句时在句中做地点状语,如果本题用where来引导从句,句子的意思不通顺,可排除B.连词that引导宾语从句时,只起引导作用,没有任何意义,可省略,而连词whether引导宾语从句时,起引导作用,有意义,意思是"是否",不可省略.根据句子所表达的意思可知,横线处缺意义,故答案选D.
点评 本题考查连词的用法.连接词可分为连词(that,if和whether)、连接代词(who,whom,whose,what,which,whatever,whichever等)和连接副词(when,where,why,how,whenever,wherever,however等)三大类.做题时要分析句子的成分,看缺少什么成分,就选用相应的连接词.
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