[托福写作]托福范文---城市规模越来越大的原因和影响

Since cities have changed a lot, the size of the cities has grown enormously. Discuss the causes and consequence of the enormous size of cities.　

城市越来越大的有哪些原因和影响？思考一下自己写篇作文和范文对比一下吧。

参考范文：

Nowadays, the maps of cities are updated frequently. With the development of city, more and more suburbs become parts of the city. When the cities in the world are amplifying constantly, people discuss the topic hotly, the causes and consequence of the enormous cities. Different people have different answers by their respective views.，


　　In a word, since each coin has two sides, we should be acquainted clearly with the reasons why the size of the cities has grown enormously and what it will bring us. Thus, we could make full use of the positive effects and overcome the negative effects.