英语课前的演讲稿范文三分钟（通用5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.
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.
Everybody is good! Welcome to badaling scenic area tourism.
The Great Wall is one of the seven wonders of the world. It is the blood of the working people in ancient China, is also a symbol of ancient Chinese culture and the pride of the Chinese nation. Visitors, we have come to the famous badaling Great Wall, on both sides of the mountain, is the pine and cypress, like hidden-away east, birds sounds, gurgling streams, is full of poetic. To the distance, you can see the Great Wall is divided into south and north two peak, winding in the mountain ridges, long teng hu yue, spectacular, the scenery is very spectacular. The Great Wall built around the mountain, ups and downs, twists and turns. This period of the Great Wall of the wall is made of neat huge stone is some stone for up to 2 meters, weighing hundreds of pounds. Internal fill soil and stones, to the top of the wall where the ground covered square brick, very smooth. The wall of the lateral horse-refraining pits of building has 2 meters high, and have made a in, next shot mouth, for look and shooting. Every city wall, built a fortress of square ChengTai type. ChengTai have high low and high called the enemy, is the watchman sergeant and accommodation; Low called Chinese Taiwan, height and the wall was similar but prominent wall, have the crenel around, is where the patrol.
Badaling at an altitude of 1000 meters, the twists and turns of the Great Wall, such as the dragon take off on the mountains. It is not only a hardworking, the crystallization of the wisdom of the Chinese nation, is also an excellent representative of ancient architecture engineering. The badaling Great Wall, the distant, rolling hills, XiongChen, stiffness of the north to the mountain. Due to the Great Wall and grand Great Wall for to the mountain, to the mountain is more dangerous.
Here are the beacon tower, also known as beacons, Wolf yantai. Independent buildings is not connected to the Great Wall. Once the enemy pounce, communicate its kindle wars and light smoke during the day is called "ran, called flint fire at night. When the Ming dynasty, also on the relationship between the war with the enemy made a strict rules: the enemy hundreds, burning a smoke point a gun; Five hundred people, burning two smoke point two guns; More than one thousand people, three smoke SAN pao; More than five thousand people, four smoke four guns; More than ten thousand people, five five gun smoke. In this way, on the border of the military intelligence can rapid transfer to the imperial city ouchi. See the beacon tower, and then tell you a story, called "must play leud" : the zhou dynasty had a king named weeks you king, he has a beautiful woman, her temper is very strange, always don't smile, think of some way to you king. He lit up a distress signal (fire), as a result, drew leud come white, she laughed, you king is also very happy. But, really have an enemy to attack, you king lit the fire, but no one come, and he was killed by the enemy. There is a story, called "meng jiangnu cry Great Wall collapse" : legend was Meng Gusheng a daughter named meng jiangnu. Because of qin shi huang to build the Great Wall, need a lot of manpower. Qin shi huang was caught many people go to the Great Wall.
however, nobody has ever made out what the word “love” really connotes, not even the most famous people such as great politicians, saints and philosophers can clarify the meaning of “love”， neither can they deal with the various affairs concerning love. love is like a huge boundless net that shrouds us all in. we can neither break away from it nor escape from it. like it or not, we are always entangled in it. it is an invisible net without any form, that shrouds in different people from different angels; it is a merciless net that upsets us or even tortures us to death. it is also a supreme net which almost no human can surpass. even if they are heroes, emperors, wise men or saints, they can do nothing but show their helplessness in its face. those who can breathe through the holes of the net should be regarded beyond commonness and vulgarity. love can bring us temporary comfort and happiness, but mostly they bring about annoyance and sufferings. maybe this is the reason why many people have seen through the illusions of the mortal world. however it is not so easy to break away from this boundless, ever-existing and indifferent net of love.
love is varied and changeable, but roughly it can be divided into three categories: family love, fraternal love and amatory love. not like monkey king who jumped out of the rocks, we were all born after mother's pregnancy of about nine months, hence we have countless relatives without any choice: parents, grand-parents, and grand-parents-in-law, uncles and aunties, brothers and sisters, etc. and once looking at the genealogical tree, we'll see no end. family love is what everyone longs for, but the warmth and support from our beloved ones are what everyone yearns for the most. but how many of us are determined to contribute to our beloved one? and how many don't expect repayment and relaxed. conscience even if they have the desire and preparation to contribute to their beloved. the distance between relatives is different and so are their expectations. but since it's very difficult to know how much we should expect, a lot of worries and distresses emerge.
the nature of impeachment: a narrowly channeled exception to the separation-of-powers maxim. the federal convention of 1787 said that. it limited impeachment to high crimes and misdemeanors and discounted and opposed the term "maladministration." "it is to be used only for great misdemeanors," so it was said in the north carolina ratification convention. and in the virginia ratification convention: "we do not trust our liberty to a particular branch. we need one branch to check the other."
"no one need be afraid" -- the north carolina ratification convention -- "no one need be afraid that officers who commit oppression will pass with immunity." "prosecutions of impeachments will seldom fail to agitate the passions of the whole community," said hamilton in the federalist papers, number 65. "we divide into parties more or less friendly or inimical to the accused."³ i do not mean political parties in that sense.
the drawing of political lines goes to the motivation behind impeachment; but impeachment must proceed within the confines of the constitutional term "high crime[s] and misdemeanors." of the impeachment process, it was woodrow wilson who said that "nothing short of the grossest offenses against the plain law of the land will suffice to give them speed and effectiveness. indignation so great as to overgrow party interest may secure a conviction; but nothing else can."
dear classmates,
every one of us, rich or poor, should at least have one or two good friends. my friends will listen to me when i want to speak, will wipe my eyes when i cry, will take care of me when i am sick, and my friends will go together with me side by side through this journey of life.
as students, we could share more time with our friends. the friendship in our young hearts is pure, fresh and simple. i often feel very lucky to have a lot of good friends. especially when i had justin as one of my best friends. justin was my english teacher from the usa. i met him in 1996 when i was a student who could only speak very little english. justin was a vivid young man with a bright smile on his face, and he always had his special way to make the class active and attractive. he taught us english by telling stories, playing games, singing songs, and even dancing. i could still remember very clearly that one afternoon when we fin-ished our class, we went to some other classes to sing songs for them, just like what people do in the states on christmas eve. it was so interesting and unforgettable. justin was an excellent teacher, because he taught us not only how to study english well, but also the way to find out the beauty of the world and the way to be angels to others' lives. i know there was friendship and pure love in our hearts. facing this valuable emotion neither nationality nor age was important, the real importance lay in faith, under-standing, and care. justin is the best friend i have ever had, and i know i will cherish those days of staying together with him as the best part of my memory.
friendship is a kind of treasure in our lives. it is actually like a bottle of wine, the longer it is kept, the sweeter it will be. it is also like a cup of tea. when we are thirsty, it will be our best choice, but when we have enough time to enjoy ourselves, it is also the most fragrant drink.