well,better,good用法上的区别
well ①副词 ：好、对满意地，置于动词之后。
例句：The children behaved well. 孩子们行为良好。
They are well-behaved children. 他们是乖孩子。
Well done! 做得好！
I hope everything is going well with you.我希望你诸事如意。
②形容词 健康的、安好的
be(look, feel, get) well是（看来、感到、恢复)健康的
How are you? I'm very well. 你好吗？我很好。
good是形容词 ，用来修饰名词
例句：They are good at maths. 作表语
It's good to learn English well. 学好英语是好的。
better 是good, well的比较级
例句：He is better at English than I.
用于一些句型
You'd better do it now. 你最好现在做它。
修饰名词通常用good，修饰动词，形容词性物主代词或者副词用well，表示比较级含义用better
