由于饼图主要以比例说明和数字列举为主，我们需要在考前准备好以下素材：

　　① 动词“占”的表达：

　　account for, hold, make up, take up, constitute, comprise, represent

　　② 百分比的表达

　　percentage，proportion, share, 某些情况下可以用rate，如literacy rate

　　③ 约数表达

　　the majority of, most of, a considerable number of, a minority of , just over…, slightly more than…/less than…, nearly half… 等

　　④ 确切数字表达

　　分数与百分比的转化：one third, two fifths，one tenth

　　常见表达：a quarter, a half

　　⑤ 句式

　　要灵活运用以上的词汇结合一定的句子，变换表达方式。

　　例：亚洲人口占世界比例近50%。

　　— Asia accounts for almost a half of world population.

　　— Nearly 50% of people in the world come from Asia.

　　— The percentage of Asian in the world population is slightly less than a half.

　　— Asia has the largest percentage of population in the world( approximately 50%).

　　⑥ 排序段

　　在列举饼图数据时，为了防止单调枯燥，我们常常运用排序的方式进行说明：

　　— China takes the lead in world population.

　　类似的表达还有“be leading, the majority, mostly, most等”

　　— Next comes food, whose percentage is higher than that of clothing.

　　类似的表达还有“follow”

　　— People seem to show no interest in reference books, which lies last in the percentage.

　　类似表达还有“fall behind other items, the lowest proportion”.