to the river, the water contained so much that it can't clean itself. compared with the dramatic development in many sides of shanghai, the suzhou river has become a black point of the appearance of city. fortunately, the government has control the situation now, we are happy to see some parts of the river has become clean again, and we even can find fish sometime. the unique earth is the only planet full of lives, the water is just like the blood in the active body, protecting water is saving ourselves. not to waste a single drop of water, otherwise, the only drop of water we could keep in the future would be our tear! my dear friends, mankind still faces a great difficulty in solving the problems of the environment and development, and there is a grand task to perform and along way to go. the middle school students in china will always cooperate with the young people of the world to protect the environment. the future is ours to build! thanks for listening. ……………………