雅思小作文 多个饼图写作。小作文中的多饼图，特别是多个静态饼图是雅思写作文写作中的难点，这类图表数据较多，做数据筛选和归类分组比较困难，很容易写成数据的罗列。写的时候要注意以下要点。
1. 单个饼图内部的数据排名和对比
2. 不同饼图之间的对比（trend and pattern）
3. 占比，数值之间的倍数关系，分数，数据合并和拆分
开始写之前我们要确定分组方式。可以以三个饼图为依据分为三组，一般这种静态饼图不太建议拆分每个饼图（也就是说这个图表不太建议按照meals分组）。
写作中要注意换句式和主语（如用不同的meal做主语，用nutrient做主语，还可以用人people做主语等）
The pie charts illustrate the intakeof three different kinds of nutrients in terms of proportion consumed in typical American meals.
It is clear that there are significant variations in the composition of different meals（先描述图表的明显特点）. Supplying 43% of sodium contained in all meals, dinner constitutes the largest proportion of consumption, and it is followed（写排名）by lunch, which accounts for 29% of sodium intake. The remaining part of sodium comes from breakfast and snacks, whose contributions are matched at 14%.
As for saturated fat, dinner still takes the lead with a proportion of 37% and lunch provides approximately a quarter （百分数和分数转换）of saturated fat. Breakfast and snacks represent 37% collectively.
By contrast, snacks are the primary source of added sugar that American people take in, offering 42%, almost double the proportion of dinner while 19% and 16% of added sugar is obtained from lunch and breakfast respectively.

Overall, among the four meals, breakfast contributes to the lowest percentages in all three nutrients and American people get sodium and saturated fat principally from dinner.