The old man sat quietly in an easy chair,his eyes closed.最后一个分句是什么用法?

问题描述:

The old man sat quietly in an easy chair,his eyes closed.最后一个分句是什么用法?

省略了with的伴随状语.
原来应该是The old man sat quietly in an chair wiht his eyes closed,此次省略了with,变成了过去分词形式的状语从句.