1、consist of------没有被动语态结构
例句：
The United Kingdom consists of Great Britain and Northern Ireland.
联合王国由大不列颠和北爱尔兰组成。
2、be composed of,be made up of --------一般都是被动语态结构
例句：
Water is composed of hydrogen and oxygen.
水由氢和氧组成。
The Bull Team is made up of 15 players.
公牛队由十五个运动员组成 。
3、make up --------一般是主动语态结构
例句：
Life is just a series of trying to make up your mind.
生活就是由一系列你下定决心去做的事组成的。
4、be formed of --------由几个独立的部分组成一个完整的东西
例句：
The table was formed of two large slabs of stone.
这个桌子由两块石板组成。
