话题如下：
The graph below shows Internet users as percentage of population between 1999 and 2009 in three different countries.
该线图展示1999到2009年的10年间美加墨三国网民所占人口比例的变化趋势。请作答。
精选范文推荐：
The line graph compares the percentage of people in three countries who used the Internet between 1999 and 2009.
It is clear that the proportion of the population who used the Internet increased in each country over the period shown. Overall, a much larger percentage of Canadians and Americans had access to the Internet in comparison with Mexicans, and Canada experienced the fastest growth in Internet usage.
In 1999, the proportion of people using the Internet in the USA was about 20%. The figures for Canada and Mexico were lower, at about 10% and 5% respectively. In 2005, Internet usage in both the USA and Canada rose to around 70% of the population, while the figure for Mexico reached just over 25%.
By 2009, the percentage of Internet users was highest in Canada. Almost 100% of Canadians used the Internet, compared to about 80% of Americans and only 40% of Mexicans.
重难点词汇学习：
proportion
释义
n.部分，份额; 比例; 匀称; 面积，规模;
Water covers a large proportion of the earth's surface.
水覆盖了地球表面的大部分。
The pressure in the cylinders would go up in proportion to the boiler pressure.
汽缸内的压力会随着汽锅压力的增加而相应增加。
We must keep a sense of proportion about all this.
我们对所有的这些都要有轻重缓急之分。
percentage
释义
n.百分比，百分率; 比例，部分; [数]百分法; [商]手续费;
The percentage increase in reported crime in England and Wales this year is the highest since the war.
今年英格兰和威尔士报道的犯罪增长率是战后以来的。
The percentage of girls in engineering has increased substantially.
学工科的女孩的比例已经大大增加了。
It is expressed as a percentage.
它是以百分比的形式表示的。
figures
释义
n.轮廓; 人物; 身形; 雕像; 数字( figure的名词复数 ); 算术; 图解; 轮廓;
vt.& vi.认定; 计算; 是重要部份; 是…的部份;
But as with other charitable bodies, these figures mask the true picture.
但和其他慈善机构一样，这些数字掩盖了实情。
Let's take a look at some of the figures involved.
让我们看一下涉及的一些数字。
He was sitting there saying, "Yes, the figures make sense.
他坐在那儿说：“是的，这些数字可以理解。”
