题目内容

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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