作文要点：
1．车祸率发生的起伏。2．城市中车祸下降的，可能原因。3．你对今年将要发生的事的预测。
The graph shows the changing rate of car accidents in Walton city in 1990. The first two months of 1990 showed an increasing trend. The rate rose to 32 in March but fell to 26 in June. From June on the rate was rising again and reached the peak point 39 in August. After August the rate began to decline,and eventually dropped to the lowest point 16 at the end of the year.
The highest rate in August was due to unfavorable weather conditions. Humidity and high temperature make drivers impatient, which easily leads to car accidents. The high rate in the first half of 1990 was also caused by the bad weather condition. In Walton City the excessive rain comes at early spring. The rain made road slippery,which often resulted in car accidents.
This year the pattern is expected to change. The city government has raised fund to improve the road condition. Two new roads will be finished at the beginning of this year and are expected to open to traffic soon. Furthermore, the new road regulation provides that in summer every car must be air-conditioned. With all these precautions, I'm sure that the rate of car accidents will be much lower this year.
大概翻译：
图表显示1990年的沃尔顿市车祸变化率。首两一千九百九十零个月则有上升的趋势。利率上升到3月份的32降至6月的26。从6月的率再度上升，达到高峰8点39。 8月以后的利率开始下降，并最终下降到年底的最低点16。
8月份的最高水平，是由于不利的气象条件。湿度和高温使司机不耐烦，这很容易造成交通事故。在1990年上半年的比率很高，也造成了恶劣的天气条件。在沃尔顿市雨水过多，正值初春。雨使得道路湿滑，这往往导致车祸。
今年的格局有望得到改变。市政府提出了基金，以改善道路状况。两个新的道路将完成在今年年初，预计即将通车。此外，新道路的条例规定，在夏季必须每车空调。所有这些措施，我敢肯定，在车祸率将远远低于今年。
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