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  3. It is self-evident that vehicles as the means of transport are playing more and more important part in modern life. But with inc

It is self-evident that vehicles as the means of transport are playing more and more important part in modern life. But with inc

admin2010-09-10  45
问题     It is self-evident that vehicles as the means of transport are playing more and more important part in modern life. But with increasing number of cars, many problems have to do with the control of man-made hazards created by cars.
     Traffic accidents are the most serious problem caused by vehicle. All over the world thousands upon thousands of people are killed or injured every year. Cars are the one of the greatest killers to city people. Also the car is helping to destroy the ozone layer which protects us from the harmful rays. Now, we are more likely to get cancer from the sunrays. Besides, living in big cities with numerous running cars, buses, trucks, people’s health is being endangered by the harmful gases and terrible noise. As a result, city people tend to have more odd illness and get diseases in hearing and in breathing system.
    Moreover, vehicles add much to city people’s depression and tension. It is already very difficult for people to find the peace of mind needed for their health. Yet, city people have to hurry along busy streets everyday, faced nervously with the running vehicles and the desperate noise. All of these do great harm to their psychological health. To live, day after day, with all those beeping horns and traffic jams is not something that a normal person would endure. Is traveling quickly more important than living healthily?
If the ozone layer is destroyed by car, what will happen?
选项
答案The sunray will(be harmful to people and)cause cancer。
解析 根据题中的ozone我们可以知道这是有关第二个问题的，所以见第二段4-5句。
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