Annual Cycles of the Traffic Accident of a City

城市交通事故年變化

Traffic accidents are one of the most serious problems in modern cities. Many people have lost their lives every year.

The two graphs show the comparison of traffic accident cycles in a city for the past two years ( 2003 and 2002 ) . In each graph, the arrow indicates the annual average point for each traffic accident. The chart for 2003 tells us that most traffic accidents happened in December, while early spring (March ) has a relatively higher percent. Traffic accidents decrease from April to October, and July has the lowest percentage of traffic accidents for 2003.

In 2002, the low points lasted for five months, from May to September. The yearly peak of accidents was in February. In comparison with that in 2003, the percentage of peak points decreased by 30%. The variation between monthly traffic accident percentages is much less than that of 2003.

作文結(jié)構(gòu)分析：

·引言

· 2003 年情況描述

· 2002 年情況描述以及與2003 年的比較

作文內(nèi)容分析：

本文是一篇圖表作文, 這類作文首先要看清圖表, 寫作時要寫得清楚扼要, 沒有必要寫每月的的變化或作計算, 只需寫清每年的高峰、低谷和平穩(wěn)期, 然后將兩年的情況作一比較。

單詞詞組：

the arrow indicates... 箭頭指示為……

relatively ad. 相對地

last v. 持續(xù)

yearly peak 每年高峰

in comparison with... 與……相比較

variation n. 變化