第一段：總體描述圖表，指明時間段，指出突出變化或不同
常用句型或短語：
As is clearly shown in the char/ table/graph, ___________
According to the figures given in the table/chart/graph, ____________
It can be seen from the table/chart/graph, _____________________.
The figures in the table/chart reflect that ________________.
especially, ________________（指出突出變化）
第二段：（分析原因）
There are several factors leading to this change / difference ……..
There are several reasons for _____________.(引出原因)
To begin with, _______(原因一)
In addition, ______________（原因二0
For example, _________（舉例說明）
Last but not the least, __________（原因三）
To sum up——————————————（簡要總結(jié)）