两个英语词组的区别be made of和be made from

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两个英语词组的区别be made of和be made from
两个英语词组的区别
be made of和be made from

两个英语词组的区别be made of和be made from
be made of
用...造成(用于原材料显而易见的场合)
be made from
由...所做成的(用于原材料不易看出的场合)

be made of 材料看得见,即物理变化
be made from材料看不见,即化学变化

be made of和be made from 的区别是:
be made of 指发生物理变化. 如:The class is made of 60 students. The desk is made of wood.
be made from 指发生了化学变化.如:The wine is made of grapes. 从酒里看不出葡萄了