consist
1.consist of和consist in不同。consist of是“由…组成”。例如：The essay consists of ten paragraphs和Water consists of oxygen and hydrogen。consist in是“在于”或“存在于”。例如：Virtue consists in being good和Correct English consists in the correct use of words and phrases。
2.consist of和contain不同。consist of后面接全体的各部分，contain后面接全体的一部分。例如：The essay, which consists of ten paragraphs, contains two paragraphs of description.不过在说到容积或重量的时候consist of和contain意思相同。例如：A gallon consists of（或contains）four quarts.
