becauseof和for的区别（because for和because of 的区别）

because of 用于表示引起事情发生的直接原因。

He walked slowly because of his bad leg. 他走得慢是因为他的腿有毛病。

for 除了能表示“由于”这一含义外，还常常用于表示心理原因。

He was rewarded for his bravery. 他因勇敢而获奖。

He left an hour earlier for fear of missing the train. 由于怕赶不上火车，他早走了一个小时。