be made of 和 be made for的区别?有没时态的区分?

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be made of 和 be made for的区别?有没时态的区分?
be made of 和 be made for的区别?
有没时态的区分?

be made of 和 be made for的区别?有没时态的区分?
你是想知道be made of 与be made from 的区别吧,be made for是:最适宜的
be made of 与be made from 的意思都是“由.制成”的意思.
be made of是直接能看出原材料的
例:This book is made of papers.这本书是纸作的.
be made from 是不能从肉眼直接看出原材料的.
例:The paper is made from wood.纸是由木头制成的.

是be made from 吧?
前者是由…制成 看得出材料
后者是看不出材料
be made for 为…制造(我不太确定)

be made of 是用什么材料做成的
be made for做来干什么用的
made本身就是make的被动态!因为东西都是被动处理的啊.
be就根据实际句子的需要可以用am,are,was,were

be made of 是用什么材料做成的
be made for做来干什么用的