well和good用法口诀

good形容词，well为副词，前者修饰名词，后者修饰动词。well专指“身体好”，用法可相当于“fine”，good不能“身体好”。well还可做感叹，表示强调和犹豫。二词用法要牢记，千万不能弄混淆。

从相关短语用法上比较

be good at 与 do well in：两者均可表示“擅长”。如：

He is good at languages. 他擅长学语言。

They all did very well in the examination. 他们这次都考得很不错。

He is good at [in] maths. 他擅长数学。

2. as good as 与 as well as：用于本义时，两者均可表示“与……一样好”，但 good 是形容词，而 well 是副词。如：

他说英语说得跟她一样好。

正：He speaks English as well as her.

正：His English is as good as hers.

但是，用于引申义时，两者的意思很不相同：as good as 意为“几乎”“差不多”(=almost)，as well as 意为“而且”。如：

The work is as good as finished. 工作差不多干完了。

。

She’s clever as well as beautiful. 她不但漂亮，而且聪明。