中学生英语演讲稿精品中同学英语演讲稿精品关爱大自然】caring for nature-overpopulationwhat is nature? its 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. lets 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 taxis horn, the dust, heat, noise and cooking fires made it like a scene from hell! i admit, frightening.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 worlds 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 worlds 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 dont ;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.lets 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.【中同学英语演讲稿】i wanna welcome everybody here in this cheer team. thank you for coming here this morning to stand on my side cheering me on. its my dream to have the opportunity to challenge all the foreign athletes to the championship at this great occasion: XX年 olympic games. now, the dream came true. as an athlete of china, im here to win the gold medal of orienteering for our motherland.im so proud of being one of the best players in the world. but could you believe i had been a lazy girl when i was in junior high. im not kidding! at that time, running was my last favorite. i really dont know how to describe the first time i was on the track. it was horrible. when i started to run, i was simply out of breath. and while i touched the finishing line, i really didnt know if i was still alive. its so funny, huh? but its true, i did.well, something happened and changed the situation. we won the right of holding the olympic games in 2021. after that, sports became a kind of game in campus. and there are many sports clubs in school. one day someone asked me:“are you gonna try one of those?”first i felt so wired.“try to get into sports clubs? are you kidding?” i said. and she goes: “why not? its not hard at all, and so fascinating!” so i did tried one and i was so lucky to become one of those who did orienteering. that is a fantastic sport! you need to run and find where to go just by using a map and a compass. its wasnt popular in china at first. but when we heard it might become a new event in 2021, we did practiced hard, and aimed to win the first champion of orienteering in the world. when we practiced, there were a lot of troubles. you know, sometimes you need to go with your feet, but sometimes you n