题目内容
16.It's reported that the fire had burned for quite some time ______ it was brought under control.( )A. | since | B. | when | C. | once | D. | before |
分析 据报道,大火在被控制之前燃烧了很长一段时间.
解答 答案:D.
根据对句子的分析可知大火燃烧很久应该是发生在火势被控制之前,而且根据句中的时态had burned为过去完成时也可推断出来;所以用before来引导时间状语从句;故选D.本句中it为形式主语,that引导的为一主语从句,而在主语从句中又包含了一个before引导的时间状语从句.bring sth under control将…控制住.
点评 对于不同的连词要明白他们所连接的状语从句,然后结合句意再判断所选用的连接词.
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