问题
选择题
Burns are called first，second or third degree burns， which layers of the skin are burned.
A．depending on
B．depended on
C．depend on
D．to depend on
答案
答案：A
题目分析：考查分词做状语用法。Depending on视…而定,相当于according to…句意：根据被烧伤的皮层，烧伤被分为一级，二级和三级烧伤。故A正确。
点评：本题比较特殊，depending on与judging from比较类似，属于固定的用法，平时要加强识记