急！！！！！环保知识竞赛主持开场白和结束语（英语）

Global Shortage of Fresh Water
People often think that water will never be used up.There is plenty of water,suc h as rain,water from the rivers and wells,It seems as if water is always availab le around us and we never have to worry about water shortage.
In fact water is rather limited on the earth.With the rapid increase of populati on and fast development of industries,water is more needed than before.At the sa me time,a large amount of water has been polluted and wasted every day.Some big cities in China are facing the problem of water shortage already.There,water sup ly is controlled and industry has been restrained.
What should we do about the water shortage?I think,first,the people should be ma de aware of the real situation about the water.Everyone should consciously save on water and certain law should be made that no water will be polluted.We have t o protect the existing water resources and develop new ones.In this way Ibelieve that our cities will be thirsty for water in the future.

Today, pollution has become a very serious problem. All forms of pollution do harm to man and animals, such as air pollution, water pollution, soil pollution and so on.
Generally speaking, Pollution mainly comes from factories. Each day, chemicals in the smoke from factories cause a lot of damage. Water pollution is also caused by waste from factories. All of these can do harm to people's health.
Now people have done something to prevent pollution, but the situation is still serious; we hope scientists will find some new methods to solve this problem.

Nowadays, the environmental protection is becoming one of the most important issues in the world. Being one of the members of our society, what shall we do to protect the environment?
First, stop using plastic bags, boxes and bottles. Stores should be required to use the bags, boxes and bottles which are made from paper.
Secondly, more and more trees and flowers should be planted to keep our surrounding clean. People must be required to plant plants around their houses and work places.
Finally, we must control the pollution by law, according to which, polluted water and air exhausted from factories should be forbidden.
These are some of the measures that we can take to protect our environment and they are not hard tasks for us. Remember, the earth is the only planet we could live at present.

Since the first day, BNBM has paid more attention to protect the environment as its social responsibility, by developing green building materials, producing green products and creating green enterprise. According to the spirit of "From the nature, for the nature and return to the mature", BNBM has tried its best in developing new technology and improving equipment to reduce the pollution.

为环保而呐喊[/color]

1) describe the cartoon
2) interpret the message conveyed in the picture
3) and give your suggestions to remedy the situation

范文：
A cry for Nature Conservation

As is depicted in the picture entitled “cries from our descendants”, a boy is calling on his ancestors — citizens today throughout the world — to ensure a better environment and a greater abundance of natural resources for future generations. With a forced smile on the face, he is crying bitterly and desperately. Such a scene can just put us deep in thought.

The drawer of the picture intends to force us to ask ourselves some very thought provoking questions concerning nature conservation. Are we willing to be more conservative in our life requirements, and are we willing to moderate our use of the world's resources for our descendants? Can we, in fact, reduce our consumption of petroleum, coal and electricity, in order to reduce the pollution and environmental pressures created by excessive energy use and to allow others to live a better life? Are we willing to spend more money for pollution control and environmental restoration? Are we willing to devote more effort to recycling? Can we moderate our demand for fat rich diets and super processed convenience food? These are some of the central issues of the present�day world, and ones on which the quality of present and future environments may depend.

As citizens in the modern world, it is our duty to give thought to the living environment and conditions of our offspring. We must take positive actions to remedy the worsening situation, which is sadly threatening to ruin every corner of the world. Only in this way can the boy stop crying and show some respect to his ancestors.

Win Competition of Environment Protection for Beijing

Although the 2008 Olympics are still three years away, another special competition has already started in Beijing. This time, the competitors are not the athletes from all over the world, but the people living in Beijing. The special competition is not held in a stadium, but in every street and every corner of Beijing. I suppose some of you may have already guessed what the special competition is. Yes, it is the competition of protecting our environment and creating a green Beijing for the 2008 Olympic Games.

Someone may ask who is our rival in this competition? The modern Los Angeles, the charming Sydney, or the historic Athens? No, none of them. The real rival is ourselves. It is our bad habits of neglecting to protect environment in our daily life.

Several years ago, I was very lucky to have an opportunity to live in the United States for about two years. I not only enjoyed the beautiful environment there, but also appreciated the American people's active way of protecting their environment. Now, whenever the environment protection is mentioned, a beautiful view of California will arise in my mind: white clouds flying across the blue sky, green grassplot sprinkled with colorful flowers and small animals playing happily among the trees.

I remember that at the beginning of my coming to America, I often went to my father's working place, the United States Geological Survey, to have fun. Each time I found a lot of people riding bicycles to their offices. Among the cyclists, an old man with white hair attracted my attention. Curiously, I asked my father," Why does the old man ride his bike to work every day? Doesn't he have enough money to buy a car?" Father laughed, "No, not because of money. Actually, he is one of the greatest scientists in the world. He can afford to buy a motorcade if he likes. He is just an environmentalist and usually doesn't drive unless going shopping, or in bad weather. In America, there are a lot of environmentalists, who actively protect their environment. For example, in Palo Alto city we are living now, there is even a bicycle-to-work day on May 19th every year to encourage people to decrease air pollution caused by cars".

Later, I also learnt another interesting fact of environment protection there. In some states of America, in order to decrease air pollution, save energy and reduce traffic jams, state governments encourage people to take buses to work or to share a car among several people. They even set special "diamond lanes" in some main streets, which are only for the vehicles with 2 or more people.

The positive actions of American people and the effective measures the American government takes in environment protection fully won my respects and deeply affected my consciousness in environment protection.

When I was back in China, people often asked me: " What do you think of America?" I always bolt out:" Wonderful, especially the beautiful environment." Frankly speaking, after several years, the faces of my American teachers and friends have gradually faded away from my mind, but the blue sky, green grass and lovely animals in California often arise in my mind, and became my dream of visiting there again.

The 2008 Olympics provide us with the opportunity to publicize and practise environment protection in Beijing. Is it possible for Beijing to Is it possible for Beijing to become as beautiful as California? The answer is "yes", but the dream needs every Beijing citizen's full support and active moves to accomplish.

From now on, if every student who is driven to school can take bus or ride bicycle to school once a week, if every car owner goes to work in a car pool once a week, we can make a difference. If everyone can actively protect the environment in our daily life, the blue sky, green grass and lovely animals in California will appear in Beijing.

Tiny streams can combine into a vast ocean, small trees can together be an immense forest. Beijing is often described as a beautiful and aged picture. If every Beijing citizen adds a trait of green on the picture, the whole Beijing will become an ocean of green. Let us unite together to win the competition of environment protection in Beijing, and present the world a big gold medal. That is "Green Beijing, Great Olympics "