Our Earth is our home.

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Лексика To pollute – загрязнять Environment – окружающая среда Global warming – глобальное потепление Acid rains - кислотные дожди Rubbish – мусор Litter – мусор / Industrial wastes – промышленные отходы

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Warm up How long ago did life appear on the planet ? What is environmental crisis ? Can you give any examples of environmental catastrophe (problems) ? Which of these problems does Saratov have?

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Our planet is in danger ! The environmental problems Rubbish Killing animals Water pollution Industrial wastes Air pollution Global warming Acid rains Overpopulation Destroying forests

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Water is our cristal-clear wonder Some interesting facts about water: Less than 1% of the Earth’s water is fresh and drinkable. An adult should drink about 2.5 litres of water a day to stay healthy. A man’s body contains 70% of water. Hot water turns into ice faster than cold water.

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Reading Write true (T) or false (F) ? 1.People pollute the world they live in by inventing different things ..... 2.Fishing ships are not dangerous for the oceans ....... 3.People don’t throw away trash into the oceans ..... 4.Many birds and fish die only because people kill them ....... 5.Sunlight is rather dangerous for our planet ..... 6.Acid rains affect the balance of nature.....

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What should be done to save our planet ? We have international organizations which pay attention to this problem. They help to control the pollution. Government must control air and water pollution from industrial enterprises, study man’s influence on the climate. People must plant trees and create parks for endangered species of animals.

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HOW “GREEN” ARE YOU ? What can you do to save our planet? We mustn’t throw away litter in the streets, we should put litter in the litterbins. We can plant trees and clean riverbanks and forests. We can take part in recycling litter, e.g. collecting old newspapers, plastic bottles. We can save water and electricity . We mustn’t destroy wildlife. We must learn at school how to protect the environment. LET’S START TODAY !

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Global warming is sometimes referred to as the greenhouse effect. The greenhouse effect is the absorption of energy radiated from the Earth's surface by carbon dioxide and other gases in the atmosphere, causing the atmosphere to become warmer. Each time we burn gasoline, oil, coal, or even natural gas, more carbon dioxide is added to the atmosphere.

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Climate Chart Average temperature Country - Capital Summer Winter Italy - Rome Norway - Oslo Germany – Berlin Egypt - Cairo +20C ; +28С +10С; +15С +16С; +20С +40С 0С +12С -30; - 40С 0С; -3С +25С

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4. Oxygen and carbon dioxide 3. Climate is becoming warmer 2.Greenhouse effect 1.Our fragile planet