How Cities Began Do you know how cities began? Long ago, the world had only a few thousand people. These people moved from place to place, hunting animals for food. No one knows how or when these people learned about growing food. But when they did, their lives changed. They began to live near one another. And so the first villages grew. Many people came to work in the villages. The villages grew very big. From there the cities began. When machines came along, life in the villages changed again. Factories were built. More and more people lived near the factories. The cities grew very big. Do you know what the cities will look like in the future?
城市开始的时候，你知道城市是怎样开始的吗？很久以前，世界上只有几千人。这些人从地方移到地方，狩猎动物的食物。没有人知道这些人是如何或当这些人学会了成长的食物。但当他们做了，他们的生活改变。他们开始彼此靠近。因此，第一个村庄的增长。许多人来在村里工作。村庄变得非常大。从那里开始的城市。当机器出现时，村庄里的生活又变了。工厂建成。越来越多的人住在工厂附近。城市变得非常大。你知道未来的城市会是什么样子吗？