e made up of =consist of 由……组成 consist of 由...组成的.相当于be made up of .后面是加组成的成分. 例如:This necklace consists of gold and diamond. 注意,consist 本身是一个不及物动词,不能采用被动语态. be made of/from...都是表示由.制成的. 但是be made of 是可以看得出原料的.例如 The desk is made of wood. 而be made from.是不可以看出原料的.例如 Paper is made from wood.
