它这个词的理解，就相当于people,family之类的，可以当单数或者不可数名词，也可以当复数，集体名词来理解。people作为人，人民就是复数概念，谓语动词用原形，但是当作民族来理解，它集体单数，多个民族就得用peoples类同的是:the population of the world is …China has a population of …也有populations.(在表示多个地区的人口时,population要用复数形式populations。例如:Many parts of the world, which once had large populations and produced plenty of crops, have become deserts.)翻了下牛津字典，解释的是[C+sing./pl.v.,U](可数名词，谓语动词有单数或者复数形式，或者不可数名词)
根据牛津词典，population意为"人口。人口数量"，也可以指"某领域的生物，族群"。它既是可数名词，也是不可数名词，没有严格区分。具体讨论:1. population常与定冠词the连用，做主语时，谓语动词常用第三人称单数形式。The population in China is much larger than that in America.2. 当主语表示"人口百分之几/几分之己"时，谓语动词常用复数形式。如: Over three fourths / 75 percent of this area's population are adults.3. have a population of 可以表示"有多少人口"，a不能去掉。
陳奕婷3144
