◆consist v. 由...组成
consist of--由…组成（表示被动概念）==be made up of ==comprise ==be composed of (强调由什么成分所构成)
Eg: Our class consist of 100 students.
The United Kingdom consists of G.B. and Northern Ireland.
The house consists of six rooms.
be composed of----
Water is composed of oxygen and hydrogen.
constitute v.----由部分构成整体
The committee consists of 10 members. = Ten members constitute the committee.
