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.
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
真题
备战英语期末考 突击英语语法的7大捷径
2011年中考家长必看的6点行为手册
乐加乐英语押中2010中考英语试题
中考英语阅读有诀窍 多读多听找语感
名师团点拨2010年中考五科复习迷津
2010中考最后一个月 完成英语复习的技巧
用中学考试真题操练英语口语表达
2010年北师大二附中招生计划及2009年各区录取分数线
2011年北京中考时间确定为6月24日
2010北京各区初一-初三英语期末试卷及解析
2010中考最后半个月 名师教你英语各题型冲刺要领
从初三一模看2010年中考英语写作
专家:2010中考英语最后冲刺的三重境界
如何强化英语考试各部分解题技能
家长透露:实力派卓越奖得主陈熠新的英语自学秘籍
中考英语复习要做到两 “早”
2011年中考英语完形填空方法及实战演练
2010中考英语高分小秘密 错题本的小妙用
英语大师谈英语学习方法技巧
2010中考英语过后,暑假应该做什么?
重庆一中期末考试要说“英语” 交际口语占10%
初中生如何在寒假合理的安排英语学习?
2011年中考来临拿什么帮助你的孩子
温州明年中考英语首次实行“人机对话” 总分25分
英语明星:我经常用英语和别人交谈
初中英语为什么要超前学习?
中考英语冲刺复习之二——走出中考前的黑匣子
新初一了,暑假英语怎么学?
最新奉送:北京市区初中英语期末试卷
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |