very good相当于very nice。意思是非常好，用来修饰名词。very well意思也是非常好，但它们用途不同。very well通常表示人的身体很好，属于形容词性短语，仅限于表示人的身体。

very good的近义词

be good at 善于

He is good at writing compositions.

他擅长写作文。

I don't think I'll be any good at tennis, but I'll give it a try.

我想我打不好网球，但我会试试的。

be good for 对…有好处

Watching too much TV isn't good for you.

看太多电视对你不好。

Spa water is thought to be very good for health.

温泉水被认为对健康非常有益。

be good to 对某人好，善待某人

Be good to yourself!

善待自己。

do good to 对…有好处

What's more, the lower calorific power does good to health.

更重要的是，低热量对健康有益。

well的用法

well意思是好；完全地；彻底地；相当；大大地；健康的

She did well in her exams.

她考试考得很好。

These plants grow well.

这些植物长得很好。

Well begun is half done.

良好的开端是成功的一半。

He is well able to take care of himself.

他完全能照顾好自己。

I'm going to bed and you would be well advised to do likewise.

我要睡觉了，你最好也这样做。

Mom, I don't feel well.

妈妈，我觉得不舒服。