do good to sth 与be good to sth 的区别

do good
做好事, 有益于

be good to sth
做。。。对。。。有利

be good for sb.是“对某某有好处”，be good to sb.是“对某某很好”。

其他带有good的短语：
be good to do sth做某事好 例:Why is it good to volunteer?
be good at擅长
be good with 善待某人

be good at sth:擅长什麽
be good to sth：对什麽好
do good to sth:做什麽对什麽好