你说begoodfordoingsth我记的不是begoodatdoingsth?

Question

你说be good for doing sth 我记的 不是be good at doing sth?

Answer 1

没有be good for doing sth的用法,只有be good at doing sth的用法.这里是擅长做某事的意思,类似意思的搭配还有do well in doing sth,have a talent/gift for sth等等.
另外,be good for sb/sth是对某人/某物有好处的意思(无贬义）.如果实在要用be good for doing,那也是be good for sb to do/doing sth.但是在电影电视中常常会听到A对B说“Good for you!"这里通常译为“这东西跟你再适合不过了!”（含贬义,意思是这东西只有你才会喜欢.)