英语的演讲4分钟（通用3篇）
What is nature
What is nature? It's everything that exists in the world independently of people, such as pants and animals, earth and rocks, and the weather.
Now more and more people are focusing on the nature. It is no doubt that the nature is important to every human being. No nature, no life. Because of the supplies of the nature, we have lived happily for a long time. And we started to gain every thing available from the nature. And this lasted so long a time. Today, people have discovered that the nature around is getting worse and worse.
What is threatening the nature? Air and water pollution, overharvesting of plant and animal species, overpopulation and so on. Overpopulation is the biggest source of pollution. Let's take overpopulation as an example.
What does overpopulation feel like? When we move slowly through the city in a tazi. When we enter a crowded slum district. When the temperature is high and when the air is thick with dust and smoke. The streets are crowded with people. The streets seem alive with people. People eating. People washing. People talking. People sleeping. People visiting each other, arguing and screaming. People relieving themselves. People pushing their hands through the taxi windows, begging. People leading animals. People, people, people, people. As we drive slowly through the crowd, sounding the taxi's horn, the dust, heat, noise and cooking fires made it like a scene from hell! I admit, frightening.
The story not only caters to everyone's inward yearning for success, but also emphasizes the inseparability of the process and the result. The reward of success will be much amplified if the path leading towards it is treacherous, and vice versa. If a person inherits his father's millions and leads an easy life, he is not a successful person even in material terms, because there are no difficulties involved in his achieving affluence. The term "success", to be sure. will not sit still for easy definition. But as I understand it, the true meaning of success entails a combination of both the process and the satisfactory result of an endeavor. To clarify my view, let me give another analogy.
If we changed the rules of football, greatly enlarged the goal and sent away David Seaman or any other goal keeper, so that another David, namely David Beckham, could score easily, then scoring would not give him the thrill of accomplishment and the joy that it brings. If we further changed the rules by not allowing Arsenal's defenders to defend, so that Beckham needed only to lift a finger, actually a toe, to score, then there would be no game at all, because the meaning of winning would have disappeared. In accepting the challenge, in surmounting the difficulties and in enduring the hardship, success acquires its value. The sense of attainment varies in proportion to the degree of difficulties on overcomes.
The concept of success is not constant but relative because the nature of difficulty is also relative. Something you do effortlessly might pose a great difficulty for a handicapped person. In acquiring the ability to do the same as you can, he or she achieve success. That's why we greatly admire Stephen Hawking, because, though confined to a wheel chair, he has contributed greatly to the field of science.
I myself, a rather shy person by nature who easily suffer from stage fright, had to pluck up great courage to take part in a speech contest like this. I could have stayed away and had an easy time of it by not entering the university level contest.But I chose to accept the challenge and to face the difficulties. Now here I am. If I come out first, it will be a great success for me. If I come out last-I hope this will not be the case-but if I come out last, I will not call my attempt a failure, but will also celebrate it as a true success, because part of my goal is my own character training-to do more assertive, to be brave in face of difficulties. For me, it is a meaningful step forward, small as it is, in the long journey toward the final success in my life, because I have truly gained by participating.
Let us return to our handsome young prince and the 4-step definition of success. You my have noticed that the usual worldly criteria of wealth, position and fame were not mentioned as part of the story, but rather, it emphasized the process of overcoming difficulties. The ancient wisdom had already defined the meaning of success, and this is my definition, too.
Thank you.
To the nature, overpopulation is a big problem. More people, more pollution. And the big population is threatening the nature every second.
The rapid rise in world population is not creating problems only for the developing countries. The whole world faces the problem that raw materials are being used up at an increasing rate and food production can not keep up with the population increase. People in rich countries make the heaviest demands on the world's resources, its food, fuel and land, and cause the most pollution. A baby born in the United States will use in his lifetime 30 times more of the world's resources than a baby born in India. Unless all the countries of the world take united action to deal with the population explosion there will be more and more people fighting for a share of less and less land, food and fuel, and the future will bring poverty, misery and war to us all.
For most of the developing countries, it is a good idea to control the population growth. For example, China has carried out birth control for years. And this plan has a great effect on the world population.
If the population continues to increase, if the air and water continue to be polluted, if we don't do something to protect wild-plant and wildlife species will be declining. Species and biological communities have difficulty adapting to change. Economic opportunities and the quality of life of future generations are also put at risk. By protecting nature, we protect ourselves.
Let's unite together, hand in hand we stand all across the land.
We can make this world in which to live. Hand in hand. Control the population growth. Take good care of our nature.