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Unit6 Global warming

Unit6 Global warming. Can you tell what we use energy for? Energy lights our cities Energy heats our buildings Energy entertains us ( watching TV; playing computer etc.) …. Wind mills. 风力. Where does all the energy come from?. 更多资源 xiti123.taobao.com. a coal power station. 燃煤发电站.

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Unit6 Global warming

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  1. Unit6 Global warming

  2. Can you tell what we use energy for? Energy lights our cities Energy heats our buildings Energy entertains us ( watching TV; playing computer etc.) …

  3. Wind mills 风力 • Where does all the energy come from? 更多资源xiti123.taobao.com

  4. a coal power station 燃煤发电站

  5. 炼油厂 an oil refinery

  6. a nuclear power plant 原子能发电站

  7. Solar panels 太阳能接受器

  8. 水坝 a hydro dam

  9. What’s the difference between wind power and coal power? Wind will never run out while coal is a limited source. What is renewable energy and what is non-renewable energy?

  10. Try to tell as many as possible lights heating television cassette player computer fridge washing machine hairdryer … Non-renewable wind coal Non-renewable oil Non-renewable Non-renewable nuclear sun renewable (solar energy) water renewable (hydro-electric power) renewable Plant waste renewable hot spring

  11. negative effects of using energy Increasing CO2 pollution global warming

  12. Pre-reading

  13. Pre-reading What is it in the picture? It’s a greenhouse made of glass. What is it used for? It’s used for growing plants, especially during cold weather. How does it work? The air inside is warm because the glass traps the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period.

  14. What is greenhouse gases? The gases surrounding the earth, including carbon dioxide, methane and water vapor. What do you think greenhouse gases do? They trap heat from the sun and therefore warm the earth.

  15. Reading The earth is becoming warmer— but does it matter? 更多资源xiti123.taobao.com

  16. While- reading Paragraph 1 raising a question Introduce a debating over the issue of global warming Paragraph 2-4 giving examples, using graphs, explanation Illustrate how global warming comes about Paragraph 5-10 give examples, making contrast List 2 different attitudes among scientists towards GW. Paragraph 11 Using a question, leaving readers to think over the issue whether people should do something about GW. or not.

  17. Homework: Debate: Should we do nothing about global warming?

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