四級暑期天天練：寫作必備范文（4）
·新東方名師點評改錯及其應試策略
·名師指導四六級復習：六級改錯備考公式
·名師考前指導四六級完型填空做題技巧
·免費試聽四六級名師輔導課程
4. Air Pollution
Air pollution is one of the major problems of the modern world. A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too. Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution.
周雷：如何做到四六級英語與考研同步復習
Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities. They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material. Also, engineers try to design and locate new power plants to do minimum damage to the environment.
However, it may be that we still have a long way to go before we have a "clean" world. Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do. People will continually find new ways to control pollution.
相關鏈接：
·六級考試快速閱讀實戰練習
·2009年6月四六級考前整體戰略
·09年6月四六級考前必看范文
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