题目内容
8._______it took 200 years to move from the steam engine to the Internet,there could be major development in _______ are now considered frontiers(尖端) of science in just the past few ten years.( )A. | When,which | B. | While,which | C. | While,what | D. | When,that |
分析 尽管从蒸汽机到互联网花费了200年的岁月,但是这可能是最近十年现在被认为的科学尖端的主要发展.
解答 答案:C,考查状语从句和宾语从句,while"尽管",引导让步状语从句,when引导的是时间状语从句,in后面的是介词的宾语从句,从句缺少引导词,缺少主语,因此第二个空使用what,故答案为C.
点评 考查从句的引导词,要学会分析句子成分,对引导词进行确定.
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