be angry at
I was rather angry at what he said.
She was angry at finding that nothing had been done.
be bad at
I’m bad at maths.
He is bad at playing tennis.
be clever at
He’s clever at English.
She is clever at making excuses.
be delighted at
I am delighted at the result.
I’m delighted at your success.
be disappointed at
He was disappointed at the result.
She was very disappointed at losing the race.
He was disappointed at not getting the job, but he’ll get over it.
表示对某人感到失望，一般用介词 with 或 in；
表示对某一行为感到失望，一般用介词 at 或about；
表示对某一事实或情况感到失望，一般用介词 with, at或in?！?/p>
be good at 对……擅长
This cat is good at catching rats.
He’s not very good at getting his ideas across.
be mad at 对……生气（恼火）
He is mad at losing all his money.
She was mad at his insincere smile.
be quick at
He is quick at taking offense.
She is quicker at figures than I.
be skilful at
She is skillful at dancing.
The people of this country are very skillful at making carpets.
be slow at
He is slow at arithmetic.
He is very slow at his work.