the boy went to the party dressed up as a monkey

问题描述:

the boy went to the party dressed up as a monkey
dressed up as a monkey是状语.说明dressed 是非谓语.但这里不表被动,怎么用dressed 不能用dressing吗?为什么要这样用?是非谓语里的哪个规则?

这就要分析dress和the boy 的主谓关系是主动还是被动了,显然是后者,(因为是那个男孩被打扮成.的样子),所以dress应该用被动形式.