it corresponds with the television one at two pm. After that it gradually falls but with a small increase in percentage at 4:30 to 6:00 pm. The percentage of audience then gradually goes down and at 2:00 am it is the lowest which is near 2 percentage.
Conclusion
These graphs prove the progressive popularity of television. (192 words)
2. Line graph, table, bar chart
有序变量+多分类变量（以曲线图为主）
方法一：根据有序变量分段
段内根据多分类变量分组，然后对比分析最值或趋势 (2-7个多分类变量可以分为2-3组)
Sample 1
16
Body
In 1940 the proportion of people aged 65 or more stood at only 5% in Japan, approximately 7% in Sweden and 9% in the US.
However, while the figures for the western countries grew to about 15% in around 1990, the figure for Japan dipped to only 2.5% for much of this period, before rising to almost 5% again at the present time.
In spite of some fluctuation in the percentages, the proportion of older people will probably continue to increase in the next two decades in three countries.
A more dramatic rise is predicted between 2030 and 2040 in Japan, by which time it is thought that the proportion of elderly people will be similar in the three countries.
Sample 2
Body
In 1979 beef was by far the most popular of these foods, with about 225 grams consumed per person per week. Lamb and chicken were eaten in similar quantities, while much less fish was consumed.
However, during the 25-year period the consumption of beef and lamb fell dramatically to approximately 100 rams and 55grams respectively. The consumption of fish also declined, but much less significantly to just below 50 grams, so although it remained the least popular food, consumption levels were the most stable. The consumption of chicken, on the other hand, showed an upward trend, overtaking that of lamb in 1980 and that of beef in 1989. By 2004 it had soared to almost 250 grams per person per week.
17
Sample 3
The three pie charts below show the changes in annual spending by a particular UK school in 1981, 1991 and 2001.
Summarize the information by selecting and reporting the main features, and make comparisons where relevant.
Categories of spending Teachers’ salaries Furniture and equipment Resources e.g. books Other workers’ salaries Insurance 1981 40 15 15 28 2 1991 50 5 20 22 3 2001 45 23 9 15 8
Writing sample: Opening paragraph
The three pie graphs indicate the changes in expenditure of a UK school in three separate years-1981, 1991 and 2001.
18
Body paragraphs 比例 最高
As we can see from the three charts that staff salaries constituted the largest percentage of total expending. While other workers‘ salaries saw a fall from 28% in 1981 to only 15% of spending in 2001, teachers‘ pay remained the biggest cost, reaching 50% of total spending in 1991 and ending at 45% in 2001. 趋势 升降 降升
Expenditure on resources 先升后降such as books had increased to 20% by 1991 before decreasing to only 9% by the end of the period. In contrast, the cost of furniture and equipment saw an opposite trend先降后升. This cost decreased to only 5% of total expenditure in 1991 but rose dramatically in 2001 when it represented 23% of the school budget. Similarly, the cost of insurance saw a rising trend, growing from only 2% to 8% by 2001. 趋势 浮动
[Meanwhile, the expenditure of resources such as books went up from 15% in 1981 to 20% in 1991, but significantly decreased to only 9% in 2001. The furniture and equipment spending also went through a modest fluctuation. It decreased to only 5% in 1991 but rose dramatically to 23% of the total school spending in 2001.] 比例 最低 趋势 上升
There was a steady increase in insurance expenditure which grew from 2% in 1981 to 8% in 2001.
Concluding paragraph
All in all, teachers‘ salaries dominate the largest spending to the school. The spending of furniture and equipment and insurance increased dramatically, while there is a rapid drop in other workers‘ salaries and resources such as books.
3. Bar chart, table, line graph 多分类变量+二分类变量
19
Body
According to the chart, during the period from 1990 to 1995 the average prices of houses…. As far as the next period (1996-2002) was concerned, on the other hand, it is clear that housing prices were ….
Conclusion
All in all, when we compare the housing prices among five cities over the two periods….
20