英语中be made+.的用法区别清详细说明下像be made of .be made from这类be made+.（介词）的详细用法和区别

be made + 介词短语
*be made of … 由……制成.从成品中仍可以看出原材料.
The desk is made of wood .
*be made from … 由……制成.从成品中看不出原材料的成份或特征.
Paper is made from wood .
*by made by … 由……制成.by强调动作的执行者.
The machines were made by the workers .
*be made in … 由……制造.in强调地点.
This kind of watch is made in Shanghai.
*be made into … 把……制成……
Glass is made into bottles.
*be made up of … 由……组成/构成
The team is made up of 30 students and a teacher .
再贴个详细点的：
(1)be made of是…制成的.介词of所指的原材料往往是未经变化、仍可看得出材料的原样.
This kite is made of paper .这个风筝是纸做的.
The old bridge is made of stone .那座古桥是用石头造的.
This kind of glass is made of paper .这种杯子是纸制的.
(2)be made from由…制成的.介词from所指的原材料往往是经过变化、已看不出原来的材料.
Salt is made from seawater .盐是用海水制成的.
Bread is made from wheat .面包是小麦制成的.
This kind of drink is made from apple .这种饮料是由苹果酿成的.
(3)be made in在…制造.介词in后所要求的是地点.
This bike is made in Shanghai .
这辆自行车是上海制造的.
This kind of car is made in this factory .
这种汽车是这个工厂生产的.
(4)be made by由某人做的.
This machine was made by Uncle Wang .
这台机器是王叔叔造的.
(5)be made into被制成.介词into后所要求的是产品.
These things will be made into paper .
这些东西将被制成纸.
Glass can be made into many kind of things .
玻璃可以被制成许多种东西.
(6)be made up of由…组成.介词of后所要求的是构成主语的人或物.
This team is made up of two doctors and five nurses .
这支医疗队是由两名医生和五名护士组成的.
Our class is made up of forty students .
我们班是由四十个学生组成的.