108.population是一个集合名词，意为“人口”

108.population是一个集合名词，意为“人口”，指人口总数。 作主语时，谓语动词常用第三人称单数形式。例如：

The population of the world is increasing faster and faster.世界人口增长得越来越快。
表示人口的多或少应用large或small.例如：
India is a big country with a large population.

询问多少人口时应用“What's the population of …？”或“How large ……？”.例如：
What's the population of your home town？＝How large is the population of your home town？

The population of my hometown is about two million.＝
My hometown has a pollution of about two million .