趋势描述（上升，降低）
上升的动词：increase, rise, surge, enlarge, swell1, soar, enhance, climb, jump, augment2, go up
降低的动词：decrease, descend3, decline, drop, shrink, [wv]diminish[/vw], dwindle4, taper5
形容动词的副词：considerably, sharply, remarkably7, dramatically, greatly, drastically, extremely, steadily8, substantially, continually, continuously, moderately, respectively, generally, slightly, mainly, strikingly
例子文章：
Stock prices have been extremely volatile9. They climbed steadily in the 1950s, reached a peak in 1966, and then fluctuated up and down until 1973, when they fell sharply. Stock prices had recovered substantially by the early 1980s when a major stock market boom again, sending to Dow Jones Industry Average to a peak of 2722 on August 25,1987. After a 17% decline over the next month and a half, the stock market experienced the worst one-day drop in its entirehistory on Black Monday, October 19, 1987, when the DJIA fell by more than 500 points, a 22％ decline.
句型的变化：
1． 主体做主语＋increase
Between 1940 and 1985 the proportion of the elderly people increased remarkably from about 17% in Sweden and 9% in the USA to 13% and 15% respectively.
2. 年代做主语＋saw + increase
The period from 1940 to 1985 saw a generally steadyincrease in the proportion of
3.地址做主语＋experienced +increase
Both the USA and Sweden experienced an alarming/moderately surge/increase in the proportion of
写作时首段应是命题的改写
主体段应描写大的特点或大趋势的概括（重点数据支持）
重点数据即起点终点坐标，最大最小值，偶尔会用交点坐标，部分特点拐点坐标。
得分注意点：
1． 句子的衔接和句子结构的变化
2． 分词和比较结构的用法
3． 从句的用法
4． 整篇文章万万不可主观推理剖析，不然扣分
首段是信息段，不可以照抄命题，只能改写命题，概括主要的研究内容，研究对象，时间和地址。若是两个图，需要分开来写，句型常用while...shows,illustrate
For example:
（首段）The three lines in the chart each show the changes in the proportion of the elderly people to the population of the USA, Sweden and Japan from 1940 till today. Also the chart gives predicted date for the trends.
Since 1940, the proportion in the USA has been slightly higher than that in Sweden at any given time, while that in Japan was always the smallest. Specially10, the figures for the three countries in 1940 were 9%, 7%, 5% respectively. The changes in the proportion in the USA and Sweden are featured mainly by steady increase although since 1980 the USA experienced somewhatdeclines. By contrast, Japan did not see increase substantially, sending it to a peak of 5% in 2007, the same as in 1940. According to the predictionsince 2000, the upward trends will have been obvious in the three countries, but in Japan will soar at the fastest speed. Till/By 2040 the figure will have reached 27%, compared with25% in the USA and 23% in Sweden.
另一篇文章，主要展示最值的表达
In the term of the length of the Underground Railway System , that in London ranks first among the six in that it reaches 394km, almost 36 times longer than that in Kyoto, the shortest. The second longest is in Paris .
Focusing on the open date, we see that once again London URS was strikinglyearlier than all other counterparts. Put it accurately11, London opened the URS as early as in1863, 37 years earlier than that in Paris. By contrast, the youngest is LA who did not start to run URS until 2001.
说明文重视语言的流畅，简洁。在图表作文中，不追求词藻的华丽，只追求表达的了解。
注意点：
1.没必要写出每条信息，要分辨重点特点
2.段落划分要合理（得分点）
3.衔接和过渡词非常重要
一整篇文章的例子：剑五P75
To be located in the town centre,S2 is in the town centre, a non-traffic zone. As result, it is only accessibleby the railway whereas the main roads are unavailable. Moreover, it is hemmed12 out the houses, meaning its convenient for the dwellers13 to do some shopping. In addition, it is closer to the south industry but far away from the north.
Unlike S2, S1 will be set in the countryside, where both the railway and main roads are ready. But the 44000 people from Bransdon and Crandson find it not easy to reach S1, although it is connected by the railway with Crandson. Furthermore, this site is far away from the two industry areas. However, it is convenient for those who live in Hindo.
To sum up, the two sites are different in many aspects/ways.
小结：柱状图可变成线性图
饼状图可变成表格图
步骤示意图及步骤图（用总分结构，着重对比和过程的描述，关键字firstly, secondly, thirdly, finally, to begin with, and then, further more）
