Directions: For this part, you are allowed 30 minutes to write a short essay entitled Private Cars in China. You should write at least 150 words following the outline given below:
1. 简单介绍中国私家车发展的现状
2．说明拥有私家车的利与弊
3．指出私家车在中国的未来发展方向
Useful words and expressions：
温室气体排放：greenhouse emission
交通堵塞：congestion/traffic jam