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              Many things have been done and great progress has been made in the greenization of our cities in recent years. Many trees have been planted and much care has been taken of the planted trees. But, in spite of all this, greenization in the cities in China is far from satisfactory compared with cities in other countries in the world. For example, the green space for every people in Shanghai is only 2 square meters while that of the people in London exceeds 20 square meters.
              We can benefit much from the greenization of our cities. First, trees absorb carbon dioxide which is harmful, but produce oxygen which is essential to human beings. Secondly, with trees all around, our cities will look more beautiful. Thirdly, trees can improve the climate of the cities, making it neither too hot in summer nor too cold in winter.
              Since we can get so much benefit from making our cities greener, we should spare no effort to do so. We should plant even more trees and take even better care of them while they are growing. Besides, we should not cut down trees any more. In a word, we should do everything to add to the greenization of our cities.
              With industries and business developing quickly, the number of trees in many big cities has dramatically reduces. Efforts are being made to prevent people from cutting more trees. But a lot of trees are being destroyed by people who have never thought of the importance of green plants.
              Making cities greener has many advantages. First, it can make our air cleaner. Some researchers have proved that trees can reduce the amount of carbon dioxide in the atmosphere through absorption. Second, it can make our cities more beautiful. With trees and flowers everywhere, living conditions can be improved. Finally, it can produce timber----an effective way to solve the problems of limited supply of natural resources.
              Making our cities greener requires nationwide efforts.(www.keralacam.com) People in every field should not only know about the importance of keeping the quality of urban environment, but also take common action to plant more trees and flowers so as to improve our living conditions.
              Nowadays, motorcycles are popular around us. They have become an important means of transport in Chinese cities. Compared with the bike and the car, the motorcycle has its own advantages.    First, it is quite flexible. When there is a traffic jam, it can go through the cars that are held up in the street. Besides, it doesn't consume much petrol. Most important of all, it can carry another person at the back.    But every coin has two sides. The negative aspects are also apparent. To begin with, it's very complicated to get qualified fur riding a motorcycle. You'll have to go through a series of procedures to get a riding license. Furthermore, the maintenance is expensive. Worst of all, it costs a big sum of money to pay fur the license plate, especially in big cities.
              In conclusion, it has both favorable and unfavorable aspects. However, if the authorities concerned simplify the procedures and reduce the cost of the license plate, the motorcycle will be accepted by more people.
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