Данная презентация выполнена учениками 8 класса по теме: "Торнадо", в рамках изучения темы: "Стихийные бедстивия и катастрофы". УМК М.З.Биболетова "Enjoy English - 8".
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tornado.ppt | 729.5 КБ |
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TornadoСлайд 2
Tornado is a very violent wind in the form of a funnel of air that spins at great speed.
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Tornadoes come in many shapes and sizes, but they are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust.
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The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (483 km/h)
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Tornadoes are especially dangerous to people in cars or mobile homes. Tornadoes can happen in nearly any part of the world. In the United States, a tornado has been created in all states. The middle part of the United States i s nicknamed 'Tornado Alley' for the large amount of tornadoes created there.
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To keep safe in a tornado, here are some tips you can follow:
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1.Go to the lowest floor of the building. Stay close to the center of the building and away from windows.
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2. Find a piece of strong furniture or a mattress to go under or hide in a closet and wait until it is over.
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3.If you are in a school, do not go to the gymnasium or any other place that has a high ceiling. Squat near the wall, placing your hands on the back of your head.
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4.If you cannot find shelter, find the lowest, most protected ground and cover your head with your hands.
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Almost all tornadoes happen in the United States. They happen most often during spring and early summer. Tornado watchers can give warnings about conditions that might produce a tornado, but the exact location and path of it is impossible forecast.
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