请问 He would sit for hours doing nothing.为什么要用doing呢?
问题描述：
请问 He would sit for hours doing nothing.为什么要用doing呢?
答
我觉得应该是表伴随吧..
答
doing nothing是非谓语的用法,
相当于He would sit for hours and did nothing,
在这里doing是现在分词,表述主动