He feels ill 改一般疑问句改成Does he feel ill?为何用does不用Is?

问题描述:

He feels ill 改一般疑问句改成Does he feel ill?为何用does不用Is?

fell是动词,is是系动词,如果用is,那是不是要改成is he felling ill或者,is he felled ill,与原意不同