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8.Since 1994,the glacier in Antarctica has lowered by as much as 90cm,______________sea level to rise.(  )
A.having causedB.causingC.causedD.being caused

分析 自从1994年,南极的冰盖已经降低了多达90厘米,这就造成了海平面的上涨.

解答 答案:B.根据the glacier in Antarctica has lowered by as much as 90cm(南极的冰盖已经降低了多达90厘米)可以看出sea level to rise是必然的结果,所以选择B causing.由于 caused 不发生在lowered 之前,所以不能选择A having caused.

点评 考查现在分词做状语.现在分词有几种形式:一般式doing,表示其动作与谓语动词的动作同时发生;
完成式 having done 表示其动作在谓语动词的动作之前完成;
被动式being done表示其逻辑主语为现在分词动作的承受者

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