初中英语演讲ppt

Just like the rain always stops and the fog always clears, no one will fail all the time.同学互助一起进步（页眉可删）英语演讲稿3分钟ppt英语演讲稿3分钟(1)I am flying today, speech is the ideal wing, as a middle school student, we are in love fantasy, love to dream, love highlight their personality, love and Zhang Yang us different, we were not mistaken, we now are not qualitatively period of development, there is no one standard for us to judge their own life and values. We always let adults know that we can do it yourself to live, you can solve their own problems, but we have some dependence. Love day dreaming, perhaps today we want to be a teacher, to educate our newcomers, and perhaps tomorrow we want to be a scientist to explore our humanity to the present do not know some of the mystery, ，or we have no way to explain Some phenomena ... ...We are willing to bury the reality of the cruelty and injustice, we are our parents, our elders could not understand some of the practice of life, we do notunderstand why they like to do ah. It is our wish too much too young to bury social experience. Attitude of life when we are not deep.Down we love fantasy, love to dream of behavior, we need to do one for the people and human progremake a difference. To our actions to prove that we have!英语演讲稿3分钟(2)Honorable judges, distinguished guests, ladies and gentlemen:It is a great honor and pleasure to be here on this beautiful Saturday morning to share with you my sentiments about life and passion for the English language.About a year and a half ago, I took part in my very first English Speech Contest. When I stood before the microphone with all eyes starring directly at me, I could hardly speak.I stood there, embarrassed and helpless, struggling in vain for the right thing to say. My fears had paralyzed me.While my passion for English has never changed, I lost my courage to speak in public. When my professor again encouraged me to take part in this Competition, I said“no.” I couldnt endure yet another painful experience. He looked me straight in the eye and said something that pierced my heart. I will never forget his words. “Look,”he said, “We all have our fears, and you have yours. You could twist your ankle in a basketball game, but then be afraid to ever play again. Running away can never dispel your fears, but action will. A winner is not one who never fails，but one who never quits.”I spent a whole day with his words twisting and turning in my mind. Then I made the bravest and wisest decision of my life: I would face my fears – and take part in the competition!As it turned out, my dear old professor was right. Now, here I am, once again standing before a microphone. My heart is beating fast, and my mouth is dry, but most importantly, I have faced my fears -- and that makes all the difference!Thank you.。

Ladies and Gentlemen. Good afternoon! I’m very glad to stand here and give you a short speech. My topic today is global warming.At present, humans face a serious challenge. That is global warming. Increasing global temperatures are causing a broad range of changes in the world. Sea levels are rising due to the melting of land ice.As you can see, global warming is a very serious threat to our lives，so it is important to learn more about it.Generally,global Warming is caused by two things. One is man-made, another is natural causes.One natural cause is the release of methane gas from arctic tundra and wetlands. Another natural cause is that the earth goes through a cycle of climate change. This climate change usually lasts about 40,000 years.Man-made causes probably do the most damage. There are many man-made causes. Pollution is one of the biggest man-made problems. Pollution comes in many forms. Burning fossil fuels is one thing that causes pollution. Fossil fuels ,such as coal or oil. When they are burned, they give off a green house gas called carbon dioxide.Another major man-made cause of global warming is population increase. More people mean more food, and more methods of transportation, right? That means more methane because there will be more burning of fossil fuels, and more agriculture. Another source of methane is manure. Animals like cows are raised as a source of food which means more manure and methane. Another problem with the increasing population is transportation. More people mean more cars, and more cars mean more pollution. Also, many people have more than one car.In the past few years, many workers have noted that the combined effect on climate of increases in the concentrations of a large number of exraust could rival or even exceed that of the increasing concentration of carbon dioxide. These exraust, principally methane and nitrous oxide, are present at concentrations that are two to six orders of magnitude lower than that of carbon dioxide, but are important because, per molecule, they absorb infrared radiation much stronger than carbon dioxide.Studies have shown that human activity of this century has increased the concentrations of atmospheric exraust, which in turn has elevated global surface temperatures by blocking the escape of thermal infrared radiation. Natural climate variations are masking this temperature increase, but further additions of exraust during the next 65 years could double or even quadruple the present effects, causing the global average temperature to rise by at least 1 °C and possibly by more than 5 °C. If the rise continues into the twenty-second century, the global average temperature may reach higher values than have occurred in the past 10 million years.However, assessment of ongoing and future climate change requires long-term global monitoring of aerosol properties.So there is a need and opportunity for global cooperation in technology development. Only by doing so that we can better live in this planet.Thank you!。