英语be good at/ do well in区别

一、be good at / in

意思接近于 do well in. “在(某方面)出色;擅长……”。be good at / in 强调一种笼统情况，而do well in 可表示一种情况，也可指在具体的一次活动中表现出色。

be good at 的反义词组为：be poor (weak) at (in). do well in 的反义词组为：do badly in. 如：

1. Mary is good at / in maths. = Mary does well in maths. 玛丽数学很好(指情况)。= 玛丽数学学得很好。

2. Tom did well in (不宜用be good at.指具体一次)that English test / sports meeting.汤姆在那次英语考试中(运动会中)考得很好(表现出色)。

3. Wu Dong does badly in his lessons. = Wu Dong is weak / poor / at / in his lessons.吴冬功课不好。(指情况)

4.Mei Ying did badly in the high jump 梅英在跳高比赛中成绩不好。(具体一次，不宜替换。)

5. Mei Ying is weak / poor in / at high jump.梅英不善于跳高。(指笼统情况)

二、 do well 和do badly

可单独使用，表一种情况;而be good / weak / poor 一定要借助于介词in 或at, 强调在某一个方面，才能表达一个完整的意思。如：

He does well / badly at school. 他在学校里功课很好/很差。