是'i am good at swim'还是'i am good at swimming'?
问题描述：
是'i am good at swim'还是'i am good at swimming'?
答
I am good at swimming.
答
be good at 中 at是介词 后面接动词的 ing形式·
答
I am good at swimming.
At是介词,后要跟动名词.
答
是i am good at swimming'
答
swim（n.）和swimming分别是swim(vi.)的同根名次和动名词，都是名词可以做宾语嘛，所以都是对的。
答
是'i am good at swiming' swim 本身可以做动词用的 加了
ing 可以做名词用 和read study一样
答
'i am good at swimming
答
no,no,no!不要被误导了,我们可以说 "go for a swim(名词）" OR "have a swim（名词）"
但是at是一个介词,后面应该跟一个动词ing形式,所以是"i am good at swimming."
当然介词后面也可以加名词,例如"i am good at study."
答
I am good at swimming .