Respected teachers, my fellow students. Today my topic is save resources, better tomorrow. As we all know, the pollution problem may be one of the greatest problems in the world. Please look out of the windows! You may easily find: We have more cars but less petrol. We eat more kinds of food, but have fewer kinds of animals; we have higher buildings and wider highways, but narrower points of view; we spend more, but enjoy less, why? Because the natural resources are limited.However, People don"t cherish what they have until it"s gone.