be made up of、be made of、be made from的区别为：指代不同、用法不同、侧重点不同。
一、指代不同
1、be made up of：由…组成。
2、be made of：由…制成。
3、bemade from：用什麽原料作成的。
二、用法不同
1、be made up of：make的基本意思是“做，制造”，即“使甲物变为乙物”“使某物变为某种状态”。
2、be made of：make用作及物动词时，意思是“制作，做成”“产生，引起”“成为，构成”“获得，赢得，赚得”“走(到)，以(某种速度)行进，赶上”“吃”“说明，讲述”。
3、be made from：make可接双宾语，意思是“给…做…，为…提供或准备…”，其间接宾语可以转换为介词from的宾语。
三、侧重点不同
1、be made up of：表示制作完成后，仍然可以看出原材料是什么。
2、be made of：侧重于原材料，说的是由什么而做的。
3、be made from：侧重于表述原材料是什么，因为已经看不出原料，用来表明原材料。
be made up of例句：
1、Any rule must be made up of productions.
任何规则都必须由产品组成。
2、A message can be made up of one or more parts.
消息可以有一个或者多个part组成。
3、Because your life should be made up of happiness.
因为快乐才是你的人生。
4、I want my staff to be made up of excellent workers.
我希望我的员工都非常出色。
5、This is because objects may be made up of other objects.
这是因为对象可能是由其他对象构成的。
be made of例句：
1、They are very aggressive to be type-A people who just simply made two extra hours out of their 24-hour day.
他们渴望成为上等人,甚至希望每天,能多过两个小时。
2、I love chemistry now. Be very careful what you say. Have any of you made that statement about hating a subject?
我现在很喜欢化学,所以你们说话的时候,可要小心咯？
3、And after the creation of living things, The text states that God found all that he made to be very good.
当所的有生物都创造完毕后，文字记载道，上帝觉得他所创造的一切都十分美好。
4、The only objection to be made to it perhaps indeed is that much of the time, it's just more trouble than it's worth to enforce it.
唯一存疑的地方可能是,在大多数时间，实行它太麻烦了。
5、It seemed to be the product of individual decisions made by the rational, churchgoing English public.
这似乎是个人决定的产物,是理智的常去做礼拜的英国民众选出来的。