现在分词的一般式doing和完成式having done在做状语时的区别（2007 陕西卷）_ that she didnt do a good job, I dont think I am abler than her. A.To have said B.Having saidC.To say D.Saying【典型问题】1. Walking in the street the other day, I came across an old friend of mine.那天在街上散步的时候，我碰见了一位老朋友。2. Having been there many times, he offered to be our guide.因为他到过那里许多次，所以主动提出当我们的向导。【例句观察】先于先于同时于同时于【规律总结】现在分词作状语一般式doing:表示分词动作/ 状态同时于谓语动作发生完成式having done:表示分词动作/ 状态先于谓语动作发生与主语均为主谓关系_ that she didnt do a good job, I dont think I am abler
