as good as和as well as区别

as good as和as well as区别

as good as和as well as都是“与……一样好”的意思，但它们的用法不同


as good as　句中动词是系动词（good 是形容词）
as well as　修饰的是行为动词（well　是副词）
如

This book is as good as that one.　（is是系动词）
这本书和那本一样好。
Her skirt is as good as mine. (is 是系动词）
她的裙子和我的一样好。
This book sells as well as that one.(well 修饰动词sell )
这本书和那本一样好卖。
He speaks English as well as his teacher .　（well修饰动词speak）
他说英语和他老师一样好。