英语的短语用法区别be made of和be made from的区别并举出例子；be made into和made into be的区别并举出例子；be used for,be used as和be used by的用法区别并举出例子!

be made of是物理变化，sweater is made of wool
be made from是化学变化,paper is made from tree
第二个不会
be used for doing sth用来做某事
be used as their first languages被当作他们的母语
be uesd by sb被某人用

be made of 由.制成（在某物种能看得见原材料）；
e.g.this pen is made of metal.
be made from 由...制成（在某物种看不见原材料,即发
生了化学变化.
e.g.salt is made from sea water.
be made in 有某地制造
e.g.the tv is made in shanghai.
be made by 由谁制造
e.g.the new machine was made by the works.
be made into 把...制成
e.g.wood can be maed into some kinds of things now.
be made as 把...作为
e.g.English is shoken by more than 400 million
people as their first language.