1.do替代“主动词+附带成分”

这种用法的替代动词do受主语的人称和数的约束，且有时态的变化，这里所说的附带成分通常是及物动词的宾语或者是动词的状语。

Some people like a shower after they have played tennis．Peter does，for example．(does=likes a shower after he has played tennis．)

有些人喜欢在打过网球后洗一个淋浴，比如彼得就是这样的。

John speaks German as fluently as Mary does．(does=speaks German)

约翰的德语讲得和玛丽一样流利。

—Christmas a humbug，Uncle?You don't mean that，I'm sure!—I do．(do= mean that)(人教大纲版高三第58页)

——叔叔，圣诞节是胡扯吗?我相信你不会这样想吧!——我的确是这样想的。

He did not die as many other heroes have done．

他死得不像很多英雄那样英勇壮烈。