求一篇关于air pollution的文章

　　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.
　　We all know that clean air is important to good health. Wherever you go and whatever you do, you are always surrounded by a sea of gases that we call air. If there are impurities in the air, they may be absorbed by our bodies and make us ill. We need clean air, but unfortunately , air pollution is globally present , especially in cities.
　　Many large cities are anything but pollution-free. Our cities have many factories, which we need to make food, clothing and other things. Every year these factories pour millions upon millions of tons of smog into air. Power plants and houses that burn coal add greatly to air pollution. Besides , there are more cars in cities now. Once out on the streets, they will take in fresh air and replace it with poisonous gases.
　　Our country is trying hard to prevent and control air pollution. As long as every citizen also realizes its importance and makes join efforts, the day will come soon when people will take in only clean air. Then , the sunlight will no longer be blackened out by smoke and soot.
　　.
　　Good morning, ladies and gentleman. My topic is air pollution.
　　First of all, The root causes of air pollution.The main sources of air pollution is transportation, especially automobiles. They produce lots of Carbon dioxide, nitrous oxide and methane. Factories are the second major cause of air pollution. The factories burn fossil fuels which produce waste gas.
　　Furthermore, the air pollution changes the conditions that we depend on. Such as the greenhouse effect and the acid rain. The air pollution contributes to global warming. As a result, it become the greenhouse effect. It can warm up the world. The greenhouse effect will increase the temperture of Earth, which means the ice at the south and north pole will melt. The cities which locate near the oceans may disappear and the people which live there will have to swim everyday.
　　More importantly, acid rain is very harmful to the environment. Acid rain damages everything over a period of time because it makes the living things in the environment die. Acid rain affects the life in the water as well as the life on land. It is almost worse in water than on land because the fish that are in the water need the water to breathe. When the water gets polluted, then the fish get sick and end up dying. Acid rain harms the soil and poisons our food. Acid rain also kills the plants which give us clean air.
　　Above all, polluted air makes us sick; it’s bad for our health.
　　Finally, We must solve the problem of air pollution.First, we can go by bike or take underground instead of driving a car if we want to go out. The government should make some policies. For example, ask the private cars to drive on even days or odd days. The second, we should plant more trees because plants and trees can produce the fresh air. It’s good for our health and environment. Third, we should close or move the factories which produce the polluted air to suburbs.
　　The beautiful planet of ours is our home. To take care of the world is to take care of ourselves. Let’s work together to keep our world alive and well.
　　Thanks for listening.
　　《作文Car and Air Pollution》 英语作文 2009-10-17 10:47:05 阅读102 评论0 字号：大中小 订阅 .
　　Direction: For this part you are allowed 30 minutes to write a composition on the topic Cars and Air Pollution. You should write no less than words and base your composition on the outline below:
　　1.私家轿车越来越多,有些问题随之产生.
　　2.比较明显的大问题有.
　　3.我对这种现象的看法.
　　Car and Air Pollution
　　Too many cars have created a lot of serious problems in our world. Besides congestion, accidents and fast fuel consumption, cars are responsible for a good part of air pollution in big cities. All the time, they are pumping huge amounts of waste gases into the atmosphere. These gases are very harmful, causing disease and even death. One possible solution is to design and develop clean cars and clean fuels. In Shanghai, some of the public buses begin to run on natural gas, which does not give off as much carbon dioxide as the petrol. But it may take decades for the new models of clean cars completely replace the traditional ones. Another solution is to develop modern public transportation systems and restrict the use of private cars. If the price of petrol rises constantly and the public vehicles are efficient and convenient enough, most people will not buy private cars. And the total number of cars in big cities will reduce greatly. On the whole, the elimination of air pollution needs the collective efforts from the government, the public and the environmentalists.
　　There are many factories that bring pollution to us. We can not have fresh air in the morning. This is mainly because of the poisonous smoke coming from factories, especially chemical ones.
　　If we do mot fight against pollution, surely one day all of us will be killed. Some people like to put the blame on the industrial revolutions. On the contrary, the pollution problem will be solved only with the help of modem science and technology.
　　最佳答案 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.