others were on deck admiring the brilliant night sky and the giant icebergs rising above them

问题描述:

others were on deck admiring the brilliant night sky and the giant icebergs rising above them
请问,rise在这加ing是什么语法,及为什么,

rising 是现在分词作定语修饰 icebergs.
因为rise是不及物动词,它与 icebergs.是主谓关系,因此用-ing形式作定语.