Example 2：As society is developing faster and faster, more and more people are able to afford to buy cars. However, the increasing private cars have brought many problems to us.

We all know that a car uses petroleum to run and it will produce some gases. These gases can result in global warming and breathing diseases. It is very bad for the environment and our health. Producing a car needs many materials and resources, which will cost lots of money. And building roads for the car also costs much money. What's more, it’s likely to bump into（撞进）people with so many cars running in the street. Every year car accidents lead to many deaths. Of course, there are many other problems that cars cars bring to us.

Brief Comment: Example 1重点罗列了一些问题，如汽车所需要的石油等资源是不可再生、不可循环再利用的。汽车尾气会对环境造成污染，给人类带来许多呼吸性的疾病，而且是造成全球变暖的一个重要因素。私家车越多，交通问题就越严重，更容易造成交通堵塞，导致更多的交通事故; Example 2的回答和Example 1类似，另外指出了生产汽车成本很高，建造道路也会花费很大。

新形态2021