作文Traffic jams are a serious problem in many cities. What is the cause of this problem and what are some possible solutions?
第一段:提出相应建议
There are two possible solutions to the problem. First of all more roads should be built. Secondly the number of motor vehicles on the roads should be limited。
第二段:分析产生原因
The most important cause of the problem are rapid population growth and the dramatic increase in the number of private cars。
第三段:重复相应建议
In conclusion there are only two ways to overcome this problem. More roads need to be built in big cities and the number of cars on the roads has to be limited。