be responsible既可以用to，也可以用for，二者的含义不同。
1、be responsible for
用法：be responsible for后加名词。
The storm is thought to be responsible for as many as four deaths.
据认为，暴风雨造成4人死亡。
2、be responsible to
用法：be responsible to后加人物，或是接动词，对做某事负有责任。
The government will be responsible to the President alone.
政府只对总统一人负责。
词汇解析
responsible核心词汇
英 [rɪ'spɒnsəbl] 美 [rɪ'spɑːnsəbl]
adj.有责任的；负责的；责任重大的；可靠的
As a boy, i know, i was responsible to help her.
作为个男生，我知道，我有责任帮助她。
We all think of her as a responsible teacher.
我们都认为她是一位很负责的教师。
