对。没有连接词的非谓语动词作状语相当于一个有连接词的、主语与主句主语相同的状语从句。
例如:Holding the medal in his hand, he ran towards me.
相当于 While he was holding the medal in his hand, he ran towards me.
又如:Tired of sleeping on the floor, he decided to purchase a bed.
相当于 Because he was tired of sleeping on the floor, he decided to purchase a bed.