do well in 请问;I am not doing well in PE.与The girl doesn't do well in maths.有什么区别吗,not 后面应该是跟do well in 还是doing well in啊,那don't后面又应该是跟do well in 还是doing well in呢?

问题描述:

do well in
请问;
I am not doing well in PE.与
The girl doesn't do well in maths.有什么区别吗,not 后面应该是跟do well in 还是doing well in啊,那don't后面又应该是跟do well in 还是doing well in呢?

not 后面应该跟doing well in,是进行时;don't后面应该跟do well in ,是原形,一般现在时.

The girl doesn't do well in maths.
I am not doing well in PE.
这2句的时态都是对的,第一句的意思是这个女孩maths一直都不好(强调一直),第2句的意思是我现在PE不怎么好(强调现在或者将来).时态不同.

额.be doing