In this section， you are asked to write an essay based on the following chart. In your writing， you should
1） interpret the chart and
2） give your comments.
You should write at least 150 English words.
Write your essay on ANSWER SHEET 2. （15 Points）
Mobile-phone Subscriptions （2000-2008）
（subscription number： billion）
As is shown in the chart， mobile phone subscriptions grow rapidly from 2000 to 2008. We can also find out that developing countries are the driving force for such a rapid growth. According to the chart， mobile-phone subscription number increased to 8 times from 2000 to 2008， that is from around 0.5 billion to 4 billion， while that of developed countries only increased twice from around 0.5 billion to 1 billion.
I think there are two main reasons for such a great contrast. First of all， developing countries have much larger population than developed countries. For example， China and India nearly have half of the total population of the world. China has the most mobile-phone users right now， which increased greatly from 2000 to 2008. It is the same in India and other developing countries. Secondly， developing countries have been enjoying strong economic growth in recent years. As a result， people in most developing countries are richer and richer， especially in China. So they can afford to buy such necessities， including mobile-phone， as the prices continued to drop greatly in the past years.
Thus， we can conclude that as economy grows strongly in developing countries， people in these countries can buy products. （201 words）