在本文中，朗阁海外考试研究中心写作组的专家将系统探讨饼状图主体段的高分思路和写法。

饼状图和折线图相比，从思路上来说更多；从词汇角度来说稍复杂些，比如在饼状图里，经常会涉及到扇形面积的描述，因此，我们会使用到"占"这个意思，而常用来表示这个意思的动词和词组有：constitute，comprise，account for，make up和take up；此外，扇形面积还时常会涉及5个常见的分数值，如1/3，2/3，1/2，1/4，3/4，当扇形面积在这5个分数值附近时，我们需要使用一些不同的句型来描述。从高分角度来说，饼图的主体段写作思路一般可以从3方面入手：

一、纵向数据对比的饼图

先描述面积最大的扇形，然后从大到小排列扇形顺序

在这种写法中，我们可以首先描写面积最大的扇形，也可以将面积最大的2块扇形面积一起描述。以下我们就来看一个例子：

Write a report for a university lecturer describing the information below.

? You should write at least 150 words.

? You should spend about 20 minutes on this task.

Food and cars made up the two biggest items of expenditure in both years. Together they comprised over half of household spending. Food accounted for 44% of spending in 1966, but this dropped by two thirds to 14% in 1996. However, the outlay on cars doubled, rising from 23% in 1966 to 45% in 1996.

之后的数据排列我们可以按照大到小的扇形面积顺序，也可以以变化幅度较大或者有倍数关系的扇形为先，这种写法更高级。如：

Other areas changed significantly. Spending on eating out doubled, climbing from 7% to 14%. The proportion of salary spent on computers increased dramatically, up from 1% in 1996 to 10% in 1996. However, as computer expenditure rose, the percentage of outlay on books plunged from 6% to 1%.liuxuepaper.com