How Cities Began 城市的起源英语作文;请以“城市怎样开始”为题用英语写一篇短文。

城市的起源英语作文
请以“城市怎样开始”为题用英语写一篇短文。内容要点如下：
(1) 从前，人很少，以游牧打猎为生。
(2) 懂得种植后，定居在一起，建立村庄。
(3) 人口增加，涌向一些村庄，遂发展为城市。
(4) 机器出现后，建立工厂，更多的人聚居在一起，于是城市变得很大。
注意：
(1) 短文包括所有内容要点，但不可逐字翻译。
(2) 可适当增加细节，使短文连贯。
(3) 字数100左右。
请参考作文地带提供范文：

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.