非谓语动词用法,ing做状语啊,这里表伴随.
翻译：那个穷人（可怜的人）老坐在那里,看着那个富人居住的大宾馆.
类似用法：
Looking (when I looked) at the picture,I couldn't help missing my middle school days.
Seriously injured（这个是过去分词啦,表被动完成的动作）,Allen was rushed to the hospital.
The girl was left alone in the room,weeping（crying ）bitterly.