英语语法：区别一下这两个短语

be made of意思是“由……制成”，介词of所指的原材料一般是未经变化，仍可看出材料的。例如：

The desk is made of wood. This bridge is made of stone.

课桌是用木头做的。桥是石头造的。

◆be made from意思也是“由……制成”，但介词from所指的原材料往往是经过变化，已看不出原材料的。例如：

Paper is made from wood. The wine is made from rice.

纸是用木头做的。酒是由稻谷制成的。

◆be made in意思是“由（什么地方）生产的”，表示某一物品在某地生产或制成，in后面接表示地点的名词。例如：

This kind of bike is made in Japan. China is mostly made in China.

这种自行车是日本生产的。瓷器主要产生中国。

of 和from 的区别啦