看到船 在远处航行 。\rStanding on the seashore,the ship was sailing in the distance.（误）\r(Standing的逻辑主语不可能是 theship)\rStanding on the seashore,we saw the ship sailing in the distance.（正）\r河很宽，我们游不过去。\rBeing very wide, we can't swim across the river.（误）\r(Being的逻辑主语不可能是 we)\rThe river being very wide, we can't swim across it.（正）\r9 现在分词还是动名词\r判断 be动词后的 -ing形式是现在分词还是动名词，可将其放在句首，\r如果句子能成立，就是动名词；如果不能成立，就是现在分词。比较 ：\rHer work is making shoes．她的工作是制鞋。\r（动名词，可改为 ： Makingshoes is her work.)\rShe is making shoes她正在做鞋子。\r（现在分词 ，不可 改为 ： Makingshoes is she.)\rWhat she did yesterday was drawing a picture on the wall. .\r她昨天所做的 是在墙上画 一幅画。 （动名词）\rShe was drawing a picture on the wall when I came in.\r我进来时她正在墙上画 一幅画。 （现在分词）
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