do well in后面跟名词、代词或者V+ing。因为在“do well in”中，“in”充当介词，而介词后面只能接宾语(介宾结构)，宾语只能是名词、代词或现在分词v+ing。
do well in例句
1、Do you believe that only boys do well in science?
你相信只有男孩才能在科学上做得好吗?
2、She should do well in her studies this year ─ she's very focused.
今年她的功课应该学得好，她的注意力很集中。
3、You have to be highly competitive to do well in sport these days.
如今你必须有强烈的竞争意识才能在体育运动中取得好成绩。
4、Your son is smart, so he'll do well in life.
你的儿子很机灵，一定会很有前途。
5、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。