be + 形容词 + at 短语

be angry at sth/sb 为某事生气或生某人的气

He was very angry at the remarks made by his teacher.

他对老师的批语很生气。

She had been very angry at the person who stole her new bike.

她对偷走了她的新自行车的人非常生气。

be bad at sth/doing sth 不善于……

He had increased Britain's reputation for being bad at languages.

他加深了人们对英国人不擅长语言的印象。

She is so bad at keeping secrets.

她一点都不会保守秘密。

be clever at sth/doing 擅长于……

Her mother was clever at many things.

她妈妈对许多事情都很精通。

She is clever at household management.

她很会料理家务。

be disappointed at sth 对……失望

I was much disappointed at his absence.

他不在，我感到很失望。

He is not disappointed at the failure to make headway towards resolving their differences. 他们之间的分歧依然未能解决，他对此并不感到沮丧。

be expert at sth/doing sth 在……方面是内行

He is very expert at repairing TV sets.

他修理电视机很内行。

The Japanese are expert at lowering manufacturing costs.

日本人在降低制造成本方面很在行。

be good at sth/doing sth 善于……

He was never good at communicating with the players .

他不善于和队员们进行沟通。

Nick has always been good at finding cheap flights.

尼克总能找到价格便宜的航班。

be mad at sb (for doing) 对……发怒

She was mad at her husband for forgetting her birthday. 她因为她的丈夫忘了她的生日而生气。

She's mad at me for being late.

我迟到了，她非常气愤。

be quick at sth/doing sth 在……方面敏捷

He is very quick at making up excuses.

编造借口，他来得非常之快。

He's quick at accounts.

他账算得很快。

be slow at sth 在……方面迟钝

He is very slow at his work.

他干活很慢。

be successful at sth 在……有成效的

I wasn't very successful at keeping the news secret.

我没能把这条消息严格保密。