Talking about energy saving

Class meeting theme: everyone is responsible for environmental protection!

Class meeting content (process):

A: The blue sky and deep yellow land breed fresh and bright green.

B: Green is the color of life endowed by nature.

A: The earth is the only home for human survival.

B: The earth is a lovely and fragile planet. However, with the rapid development of modern science and technology and economy, our homes are being destroyed, and the air, water and soil on the earth are being seriously polluted, which brings a series of environmental problems. (Show pictures) In order to build our green home, let's all pay attention to environmental protection.

Once, I was deeply attracted by a TV documentary about animals. It is not because we seldom see the freshness of these fierce large wild animals, but because it is the freedom and ferocity of galloping between heaven and earth in the wilderness, and it is the will of life to defend life, thrive and strive for food. Presumably, you have been deeply attracted by the beautiful Tibetan antelope and made to laugh by the giant panda. However, they are different from the past. Greedy people deprive them of their living environment: people fill lakes to build houses, whales run aground on the beach; In the sound of chainsaws, trees wither and birds are homeless; Behind the so-called animal world, some hateful people are selling the fur of precious animals such as Tibetan antelope and giant panda ... can we turn a blind eye? No, we can't. So, let's unveil the mystery of environmental protection and give animals a better world.

Ho: Class 2 (5) class meeting on environmental protection theme begins now!

B: First, let's watch two videos. (Video omitted) After watching the video, we can know that environmental protection has become more and more important.

(2) Environmental Protection Knowledge Competition:)

A: Pollution has become more and more serious (show pictures), and people pay more and more attention to environmental protection. Our Zhejiang and our school have carried out many environmental protection activities. Please tell me what activities you know.

B: Everyone's understanding of environmental protection needs to be strengthened! In order to investigate everyone's understanding of environmental protection knowledge, we specially prepared some environmental protection knowledge competition questions. Please look at the question (omitted)

A: The good environment of nature has nurtured human beings and all things, but human beings have trampled on nature in the process of conquering nature, so human beings have also been severely punished by nature.

A: Indeed, with the development of high technology, it has also brought a series of serious environmental problems: photochemical smog, toxic compounds, nuclear pollution, oil leakage and so on. At present, 0/5% of the global land has been degraded by human activities. At present, 1/4 of the world land area has been desertified. These problems have aroused the concern of all mankind.

Water is the source of life. However, water is increasingly polluted. At present, about 70% people in the world drink unsafe drinking water, and an average of 25,000 people die every day from various diseases caused by water pollution.

A: The slogan "Save the Earth and Protect the Environment" was put forward by the United Nations at the environmental conference held in the Brazilian capital in 1992. (showing pictures)

Please invite Zhou, Guo and Lee Kuan Yew to recite.

Green Olympics: (showing pictures)

A: This year's Beijing Olympic Games also highlighted the theme of environmental protection, advocating a "green Olympics", with the message: 1. As the three themes of the 2008 Beijing Olympic Games, high-tech Olympics, people's Olympics and green Olympics will lead the whole process and all-round organization of the Beijing Olympic Games, with energy conservation and environmental protection as the theme.

B: Two. Around the Olympic concept of energy conservation and environmental protection, the whole Olympic Village has adopted a solar domestic hot water system, which can supply 600 tons of hot water every day in summer, meeting the bathing water demand of 65,438+6,000 athletes. This alone can save 5.5 million kWh of electricity and reduce 6000 tons of carbon dioxide emissions.

A: "During the preparations for the Olympic Games, we should do things in a' green' way to reduce the environmental impact of the preparations for the Olympic Games; Promote the environmental protection of cities and promote the sustainable development of cities. " Liu Jingmin, vice chairman of BOCOG, has a simple understanding of the Green Olympics. Seven years ago, Beijing solemnly promised to the world that the "Green Olympics", as one of the three concepts of the Beijing Olympic Games, would run through before, during and after the Games.

Hosting the Olympic Games is a century-old dream of China people. After successfully winning the right to host the 29th Olympic Games, people in this land have fulfilled the promise of a green Olympics with their own actions. On June 5th, it was the World Environment Day. BOCOG, the organizing committee of Vancouver Winter Olympics and the head of the United Nations Environment Programme jointly signed the proposal of "driving one day less in 2007"-the sixth five-year environment day. This year, World Environment Day jointly launched the "driving one day less" activity in Beijing and Vancouver. The Proposal issued the initiative of "protecting the environment and curbing global warming by reducing greenhouse gases": in the absence of urgent matters, give up driving, take public transport, ride a bike or walk ... (photo)

A: At the end of June, Beijing Public Transport Group put 50 energy-saving and environment-friendly electric buses serving the Olympic Games into trial operation in Chang 'an Avenue. During the Olympic Games, these vehicles will serve the inner ring of the Olympic Village, the northern competition area and the media village. The trial-run Olympic electric bus is powered by lithium-ion battery, which has the advantages of zero pollution, zero emission, high energy density, small size and long cycle life. In addition, they also have a bright spot of environmental protection, that is, the internationally advanced nano-technology "photocatalyst" is used for self-cleaning and deodorization spraying in the car before leaving the factory. According to relevant persons from the Science and Technology Department of Beijing Public Transport Group, the spraying vehicles all passed the inspection by authoritative departments at one time, and the harmful contents of formaldehyde, ammonia, benzene, toluene and xylene in the vehicles were all below 0.0 1 mg/m3.

We can do a lot for environmental protection. Start with what you can, and start with small things. I think if everyone does this, our living environment will be less polluted.

For ourselves, for our descendants and for our common home, protecting the environment should be our conscious action.

Look, the water is clear, the sky is blue and the earth is spring.

Listen-there is laughter in the forest, and all animals, big and small, are smiling.

A: I believe that in the near future, our space will be cleaner and our mother earth will be younger and healthier.

Our theme class meeting will be over soon. Let's start with small things and make our contribution to environmental protection. (Finally, please ask the class teacher to speak)

Class teacher: Students, through our joint efforts, today's class meeting on environmental protection has been a complete success. In this activity, everyone learned a lot about environmental protection and the importance of environmental protection. I hope that everyone will establish a sense of protecting the environment from an early age, start from the small things around them, start from what they can, and contribute their own strength to environmental protection. I believe that as long as we are responsible for ourselves and the earth, we human beings can live on the earth forever. Let's join hands again to create our green home!

Summary: Through this class meeting, we can get a general understanding of what a green school is. We are aware of the details of life that we don't usually notice, and realize that only by creating a good environment can we study and live better. Everyone is responsible for a beautiful campus. Environmental protection is not far away. We can start from the little things around us and contribute to the creation of a green school for our mother. Man, where are you going? I saw black smoke falling in the sky; I smell the strong smell of gasoline in the air; I heard the rumble of the machine shaking the earth. I know this is the inevitable result of human development. But human beings! Are you really going on this road of no return? I don't know. Do you know the fog in London? I don't know, did you see the grassland disappear and the desert swallowed everything? Don't you know that there was once a Babylonian kingdom and a Loulan buried under the yellow sand? Humans! Your development is so rapid that you greedily suck the earth's resources. But, but this is a point of no return! Admittedly, no one wants to give up the reinforced concrete building and move back to the thatched cottage; No one wants to give up electric lights and spend a long night lighting kerosene lamps; No one wants to give up the car and drive or ride a donkey with two feet. Not only that, most people want to have better and more scientific products after they are basically satisfied. But all these material comforts have to pay the price of the environment. An American said, "We have met an enemy, and this enemy is ourselves." We cut down virgin forests, we pour sewage into the Yangtze River, and we emit billowing black smoke into the sky, which is the need of economic development and the people's demand for material life. When we finally drained the Yellow River, drove the Yangtze River crazy, and finally dyed the Huaihe River black, we were still pursuing a single economic growth index, regardless of the land, rivers, atmosphere and forests on which future generations depended. How long can this growth last? If fertile land becomes a desert, if the air is full of toxic substances, if rivers are polluted so that even fish can't survive, then what is the meaning of our life? What is the basis of our existence? "I thought you were so broad that you didn't care to take away a shadow; I thought you were so strong, but I didn't expect your tears to flow down. Earth, our only home, let us love you forever! Earth, our mother, let us bathe in your sunshine. " This environmental protection song brings people more vigilance and meditation: after plundering nature crazily, human beings rushed to the madness of nature before they had time to realize the victory of the spirit of all things. Persistent drought and heavy rain, frequent sandstorms, polluted air and sea are no longer blue sky ... The struggle between man and nature, human greed and short-sightedness, doomed mankind to lose even worse. Have you learned to respect and be kind to nature, learn to get along with nature and win? Respect for nature and life, every grass and flower on the earth has the right to live, and rivers, streams and oceans can only serve mankind better if they are kept clear. Life without animals is tasteless. When only human beings exist on the earth, it is the sorrow of human development. If human beings can learn not to kill animals indiscriminately, not to destroy the shade, not to absorb the earth's resources greedily, and to rectify the pollutants developed, I believe that the balance between human development and ecology will not be contradictory. Dude, where are you going? Extinction or eternity? The attack on nature is the revenge of nature, followed by extinction. Respect for nature, kindness is the love and generous gift of nature. Dude, where are you going?

6. Air pollution

Scientists have found that at least 100 kinds of air pollutants are harmful to the environment, especially to human health.

There are also sulfur dioxide, nitrogen oxides, carbon monoxide, hydrofluorocarbons and so on. Air pollutants seriously harm people's trachea, lungs and other respiratory systems.

The main ways to cause air pollution are the exhaust gas and dust emitted by industrial production and vehicles, and the dust particles emitted by industrial production also adsorb many toxic and harmful substances. These pollutants will also undergo various chemical reactions in the atmosphere, producing more pollutants and forming secondary pollution. Sulfur dioxide is one of the most common air pollutants. When it reacts in the atmosphere, it will form sulfuric acid smoke or even acid rain. Nitrogen oxides, carbon monoxide and hydrocarbons are also common pollutants in the atmosphere. They undergo photochemical reactions in the sun, which can form photochemical smog.

The accumulation of air pollutants in the air leads to the decline of air quality, which directly harms human health, warms the global climate and destroys the ozone layer. Pollutants drift with the wind, even affecting agriculture, forestry and animal husbandry. The United States loses hundreds of millions of dollars every year, and China's losses are also quite serious.

In order to protect the earth, the home on which we live, we call for the green of life with pious voices, make the earth green and beautiful, make our home green and blue, let our little hands hold hands, let our little hands hold hands, and join the ranks of "calling for green" to protect the green home. Sow a green seed today and reap a blue sky and green land tomorrow! Let's go, start with me! Take action, from now on!