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Car Pollution(汽車污染)
Car Pollution
Each year there is an increasing number of cars on the roads as millions of new cars are produced. One out of six Americans works at making cars, driving trucks, building roads or filling up gas. Americans couldn't live without cars!
Most Americans would find it hard to imagine life without a car. However, some have realized the serious problem of air pollution caused by cars. The polluted air becomes poisonous and dangerous to health.
One way to get rid of the polluted air is to make a car without pollution. But to build a clean car is easier said than done. Progress in this field is slow.
Another way is to replace car engines with something else. Inventors are now working on steam cars as well as electric cars. Many makers believe that it will take years to develop a practical model for us.
To prevent the world from being polluted by cars, we have to make some changes in our lives. Americans, for example, have to cut down on the number of their total cars.They are encouraged to use bicycles, which are thought to help keep the air clean.
But this change does not come easily. A large number of workers may find themselves without jobs if a car factory cioses down. Thus the problem of air pollution would become less important than that of unemployment. Although cars have led us to a better life, they have also brought us new problems.
汽車污染
上路的汽車數(shù)量逐年增長，同時，每年都會生產(chǎn)出幾百萬輛新車。在美國，每六個人中就有一個從事與汽車相關(guān)的工作：造車、開車、修路、加油等等。 離開汽車，美國人無法生活!
大部分美國人簡直無法想象沒有車的生活會是什么樣子。但是一些人也已經(jīng)意識到汽車造成的空氣污染已成為嚴(yán)重的問題。被污染的空氣具有毒性，并且危害健康。
解決空氣污染的方法之一就是制造無污染汽車。但是生產(chǎn)清潔汽車說來容易做來難。 目前，這一領(lǐng)域的進(jìn)展十分緩慢。
另一個方法就是使用其他東西替代汽車發(fā)動機(jī)。發(fā)明家正在研制蒸汽汽車和電車。但是許多廠家認(rèn)為我們可以使用的實用型汽
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