The chart below shows the percentage of population in India, China, the USA and Japan in 1950 and 2002.
思路： 【首段】转述题目+补充信息 【二段】中国的人口规律和未来趋势 【三段】印度的 【四段】美国和韩国的 【尾段】总结，重申全图最主要趋势，印度将取代中国成人口第一大国
答案：
The bar chart compares the changes in the proportion of population in India, China, the USA and Japan in 1950 and 2002. And it also indicates the projections for 2050.
In 1950. China accounted for one fourth of the world population. Although this figure decreased slightly, it still ranked the first in 2002, compared to other three countries. It is estimated that the population in China will continue to drop to 19 per cent in the middle of this century.
India ranked the second in terms of the population in the table, which made up 15 percent in 1950, but since then, there was a dramatic increase, climbing to approximately 19 percent. The percentage is expected to increase slightly to 21 per cent in 2050 and will probably exceed that in China.
When it comes to the population in the USA and Japan, both of which witnessed a decrease from 1950 to 2002. It is predicted that in 2050, the percentage will remain the same in the USA, and in Japan, the percentage is likely to keep falling.
Overall, it seems that India will become the country with the largest population although there is still a huge number of people in China.
2.通勤工具
Different modes of transport used to travel to and from work in one European city in 1960, 1980 and 2000.
思路：
1. 分段原则为：上升的一段，下降的一段，波动的一段。 2. 采用折现模式，重点描述数据的改变和趋势。
3. 注意一类数据的描述(Max, Min, 最大的改变等等)。
答案：
The bar chart shows the changing patterns of transport use in a European city during the period from 1960 to 2000. In brief, the chart shows that the use of the car as a means of transport dramatically increased over the period shown, while the others fell.
In detail, in 1960 the motor car was used least as a method of transport with only about 7% of the population using this method but car use grew steadily and strongly to finally reach about 37% of the population by 2000. This was a massive 5-fold increase in use.
Over this same period, however, the popularity of walking, which had been the most popular means of transport with 35% of the population in 1960 having it as their preferred way of getting around, fell to 10%. Bicycle use also fell from a high of about 27% in 1960 to just 7% in 2000.
On the other hand, bus use was more erratic being popular with almost 20% of the population in 1960 and rising to a peak of about 27% in 1980 before falling back to about 18% in 2000.（188）
3. 预期寿命
Life expectancy at birth in 7 countries worldwide.
思路：
1. 分段原则为： 按照数据的大小对比分一段，女性比男性多分一段。 2. 注意描述一类数据(Max, Min, Avg)。
3. 类比模式下，应该重点描述数据的差异，可通过减法和除法进行比较。eg.在美国，男女之间的寿命差异最大，为5年。
答案：
This bar chart compares how long people can expect to live in seven different countries.
We can see that in each of the seven countries people have a life expectancy of between63 years and 83 years. People will live longest in Canada at 83 years and the United States (81 years), while Bangladesh has the lowest life expectancy at just 63 years. Of the other countries, Turkey, Vietnam, Iran and India all have a similar level close to the average of 73 years.
We should also note that women are expected to live longer than men in all these countries. On average, females will live approximately 4 years longer than men, although there are differences here. The greatest difference is in the United States (about 5 years),while in Iran females are expected to live only 2 years longer than men. However, the major exception is Bangladesh where both genders have the same life expectancy.
Thus, we can see there are comparisons to be made in life expectancy both in geographical location and gender.（173）
4. 男女学生
The numbers of male and female research students studying six computer science subjects at a US university in 2011.
思路：
1. 典型的静态柱状图，建议分段原则为：男多于女的一段，男少于女的一段，男女相等的一段;
2. 注意重点描述关键数据，如：最大值，最小值，均值等。 3. 静态图形需强调数据的对比，如：倍数关系，大小关系等。
答案：
The bar chart shows the gender distribution of students doing computer scientific research across a range of disciplines at a US university in 2011. In five of the six disciplines, males outnumbered females. Male students made up a particularly large proportion of the student group in subjects related to the study of programming objects: mathematics, programming, and engineering. The gender gap was particularly large in the field of mathematics, where there were five times as many male students as female students.
Men and women were more equally represented in subjects related to the study of computer science: natural sciences, psychology, and linguistics. In natural science, there were nearly as many women (approximately 200) as men (approximately 240). This was also true of psychology. Linguistics was the only discipline in which women outnumbered men (roughly 110 women vs. 90 men). Overall, the chart shows that at this university, computer science subjects continue to be male-dominated; however, women have a significant presence in fields related to psychology and the computer sciences.（169）
5.年龄结构
The charts below compare the age structure of the populations of France and India in 1984.
答案：
The two charts compare the populations of France and India in terms of age distribution by gender in the year 1984.
It is clear that the population of India was younger than that of France in 1984, with a noticeably larger proportion of people aged under 20. France, on the other hand, had a significantly larger percentage of elderly inhabitants.
In India, close to 14% of people were aged 5 or under, and each five-year age bracket above this contained an increasingly smaller proportion of the population. France’s population, by contrast, was more evenly distributed across the age ranges, with similar figures (around 7% to 8% of all people) for each five-year cohort between the ages of 0 and 40. Somewhere between 10% and 15% of all French people were aged 70 or older, but the equivalent figure for India was only 2%.
Looking more closely at gender, there was a noticeably higher proportion of French women than men in every cohort from age 50 upwards. For example, almost 3% of French 70- to 75-year-olds were women, while just under 2% were men. No significant gender differences can be seen on the Indian population chart.
(199 words, band 9)
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