Over the past 30 years, the average family has dramatically increased the number of meals that they eat at restaurants. The percentage of the family's food budget spent on restaurant meals steadily climbed. Just 10 percent of the food budget was spent on restaurant meals in 1970, and 15 percent in 1980. That percentage more than doubled in 1990, to 35 percent, and rose again in 2000 to 50 percent.

二、横向数据的对比的饼图或者单个饼图

针对以上的饼图，朗阁海外考试研究中心建议考生采用的写作思路可以是先写总数，一般用简单句来实现；然后再按照扇形面积大小逐一描写。比如：

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.

In the year 2000, Coca-Cola sold a total of 17.1 billion cases of their fizzy drink product worldwide. The largest consumer was North America, where 30.4 per cent of the total volume was purchased. The second largest consumer was Latin America. Europe and Asia purchased 20.5 and 16.4 per cent of the total volume respectively, while Africa and the Middle East remained fairly small consumers at 7 per cent of the total volume of sales.