线图特别关注点：
线图也可以写得很简洁，只是把相关的数据变化写明白，但是遇到波动特别大的，一定要把相应数据都体现在文中！下面有一篇资深外教写的范文，供大家参考：（建议大家学习这篇文章的构架，把introduction和overview写在开头，而不需要分段和写结尾，文章写得精简一些，这是小作文的高分结构！）
The three graphs of wheat exports each show a quite different pattern between 1985 and 1990. Exports from Australia declined over the five-year period, while the Canadian market fluctuated considerably, and the European Community showed an increase.
In 1985, Australia exported about 15 millions of tonnes of wheat and the following year the number increased by one million tonnes to 16 million. After that, however, there was a gradual decline until 1989 and 1990 when it stabilized at about 11 million tonnes.
Over the same period, the amount of Canadian exports varied greatly. It started at 19 million tonnes in 1985, reached a peak in 1988 of 24 million, dropped dramatically in 1989 to 14 million tonnes and then climbed back to 19 million in 1990. Seventeen million tonnes were exported from the European Community in 1985, but this decreased to 14 million tonnes in 1986 and then rose to 15 million in 1987 and 1988 before increasing once more to 20 million in 1990.
组合图的拿分关注点：
大部分的点同学们还是能够把握，我要提醒的是，组合图在写完每个图的变化和数据后，最后一定要总结两图之间的关联，这是组合图overview的评分重点！这在我上写作精讲课和给近期考试的批改学生改作文的时候多次讲到！
举个我在写作精讲课上写的实例供大家参考：
像这个图，在课上和批改的作文的时候我就提醒学员，最后总结要写出两个柱图的因果关联：To sum up, the birth rate was always higher than the death rate during three centuries despite different changing tendency, which perfectly explained the constant increasing size of population in chart one.
