be

be+good+at后面加动词的ing形式，即动名词形式，be+good+at+doing+sth.的意思是“擅长做某事”，当你想英语表示某人擅长做某事，就可以用这个短语来表示。

be good at后面加动词什么形式

be good at加名词，介词宾格或名词性短语，非常重要的便是如接动词要加动词的ing形式.

如I am good at teaching English.I am good at football.

be good at后面要接名词、动名词或名词/动名词短语，

例句：John is good at swimming and basketball.

It is important that we try to be good at everything we do.

I have a shrill voice. I'll never be good at singing.

I am good at chess， but not checkers.

be good at同义短语

1、be skilled in

读音：英[bi skɪld ɪn]，美[bi skɪld ɪn]。

释义：在…方面熟练；擅长；精通。

例句：A process is required for this and managers must be skilled in using it.

这需要一个过程，管理者必须熟练使用。

2、be expert in

读音：英[bi ˈekspɜːt ɪn]，美[bi ˈekspɜːrt ɪn]。

释义：在……方面是行家。

例句：Travel them, and be expert in home-cosmography.

那么去旅行，成为家庭宇宙志的地理专家。

3、do well in

读音：英[duː wel ɪn]，美[duː wel ɪn]。

释义：擅长；在……方面做得好；在……干得好。

例句：He will do well in that work because he has a lot on the ball.

他会做好这件事，因为他很有一手。