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第二節 讀寫任務 （共1小題，滿分25分）

閱讀下面的短文，然后按照要求寫一篇150詞左右的英語短文。

【閱讀材料】

  A Thirsty World

Three-fourths of the earth’s surface is covered by water, some of which is frozen and most of which is salty. In fact, less than one percent left for all the living things.

Now fresh water is becoming scare, but more and more is needed because of the increasing number of people. Some industries also use amounts of fresh water in the production of things such as steel, paper, and rubber. These factories have polluted water flow into rivers without making it clean. What’s more, people in the city have much dirtied water piped into ditches after cooking every day.

Scientists estimate that the need for fresh water will have doubled by the year 2003. This means that we must find new ways of saving it or producing it. Some nations have worked on the problem and are already sharing their information with others. They are trying to keep their rivers from being polluted. Deep wells are also being dug, and rainwater is being collected in huge artificial lakes. In one way or another, they hope to provide enough water to satisfy the needs of their people. For example, one important way of producing water is to distill(用蒸餾法提取) it from sea water. After the salt has been removed, sea water can be used not only for drinking but also for industry and irrigation. However, the equipment for distillation process is very expensive. Distilled water might be as dear as gold if pollution goes on.

[寫作內容]

概括短文的內容要點，該部分的字數大約30；

就”環境污染的原因與控制”這個主題發表你的看法，至少包括以下的內容要點，該部分的字數大約120；

環境污染是由什么原因引起的？簡單地舉例子說明。

為了解決污染問題，國家政府部門應該做些什么？

為了解決污染問題，公民做些什么？

為了解決污染問題，我們學生應該做些什么？

【寫作要求】

  可以利用實例或其他論述方法支持你的論點，也可以參照閱讀材料的內容，但不得直接引用閱讀材料中的句子。