Directions：
　　Study carefully the following graphs that shows the distribution of traffic accidents of one city in an average day and write an essay in about 150 words. Your essay should cover the following three points：
　　（1）Descriptions of the graph;
　　（2）Possible reasons;
　　（3）Your suggestions for reducing traffic accidents.

正确答案：
On Traffic Accidents This graph shows that most traffic accidents occur during the rush hours, that is 9 o’clock in the morning and from 6 to 7 o’clock in the afternoon. What’s more, before midnight, there is a small climax in the graph while early in the days, from 1 o’clock to the dawn traffic accidents are less likely to take place.
The causes of the traffic accidents in different periods of the day are varied. It must be pointed out that the ratio of traffic accidents is comparatively high at noon and around the midnight. That’s because most drivers are very tired and need to take a break at noon and are extremely exhausted in midnight. Another reason perhaps is that some of the drivers must have been drunk in the dinner. During the rush hours of the day, traffic accidents increase rapidly because at that time traffic is busy and people do not want to be late for work or home. Due to the decreased number of vehicles on the road, there are few accidents from l o’clock at night to the dawn.
Therefore, the drivers can learn a lot from this graph. First of all, during the rush hours of the day, it is much better to drive carefully and slowly. Second, driving in a state of exhaustion and drunkenness must be avoided. That is also what the pedestrians should take cautions against

解析：
本题为柱状类图表作文，图表显示了某一城市不同时间段所发生车祸的分布情况，横轴显示的是一天之内的时间段，竖轴为车祸发生数量。作文中首先对图表中车祸发生高峰期进行了描述，接着第二段分析了这一现象背后的原因，最后提出减少车祸发生的建议。结构清晰，内容涵盖了题干中的三点要求。
【闪光词汇】
ratio n. 比例
drunkenness n. 醉态
pedestrian n. 步行者