Ladies and GentlemenGood afternoon. Now I want to talk about a beautiful world .When I was young I always dreamed that I lived in a beautiful country.There were many flowers and trees around our city.we could hear the birds singing and see the children dancing.the water were clear and the air was very fresh! How nice it was !but that is only a dream of mine!because the environment becomes worse and worse.AS you know,there is no enough clean water for people.so many of them lose their lives because of water.In many countries,people have to cut down trees for living,So there’s nothing to keep the water from running away.Also we have pollute the land,the river and the air,we have to face more and more floods and droughts.So I think the most setious is water pollution.The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly 70% of the earth’s surface is covered with water. But about 97% is sea water. Man can only drink and use the other 3% — the fresh water that comes from rivers, lakes , underground, and other sources . And we can not even use all of that.What is worse, some has been polluted seriously by human beings There is a very beautiful river in Paris．It is the Seine，it runs across the City，people drink coffee, chat on the bank in the day，at night，they enjoy the beautiful scenery in the boat，songs from the river fly into the Sky made the river more attractive, the Seine is a famous symbol of France；on the west coast of pacific ocean there lies the modern City Shanghai，another river which used to be a very important route runs through the center of the city，people regard it as"mother"．It is the Shuzhou river but I believe that few of you would sit beside it，people will be scattered by the terrible smell of water when walk by．I have to say it is extremely dirty! Ａnd we all know that a lot of beautiful rivers in the world also are Sharing the same fate with Shuzhou river． Who is the devil? I can't help asking．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!We are up against so many problems that I want to shout:take care of the earth ,it is our only home.My dear friends, man still faces a great difficulty in solving the problems of the environment Ａnd development, Ａnd there is a grand task to perform Ａnd a long 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! If eneryone make a contribution to protecting the environment,our world will become more and more beautiful! That’s all .Thanks for listening.