Download - Unit6 Global warming
![Page 1: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/1.jpg)
Unit6 Unit6 Global warming Global warming
![Page 2: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/2.jpg)
Can you tell what we use energy for?
Energy lights our cities
Energy heats our buildings
Energy entertains us
( watching TV; playing computer etc.)
…
![Page 3: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/3.jpg)
• Where does all the energy come from?
Wind mills 风力
更多资源xiti123.taobao.com
![Page 4: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/4.jpg)
a coal power station
燃煤发电站
![Page 5: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/5.jpg)
an oil refinery 炼油厂
![Page 6: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/6.jpg)
a nuclear power plant 原子能发电站
![Page 7: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/7.jpg)
太阳能接受器Solar panels
![Page 8: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/8.jpg)
a hydro dam 水坝
![Page 9: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/9.jpg)
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?
![Page 10: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/10.jpg)
Try to tell as many as possible
Things that use energy
Sources of energy Renewable/
Non-renewablelightsheatingtelevisioncassette playercomputerfridgewashing machinehairdryer…
coal Non-renewable
oil Non-renewable
wind Non-renewable
nuclear Non-renewable
sun renewablewater
renewable(hydro-electric power)
(solar energy)
Plant waste renewable
hot spring renewable
![Page 11: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/11.jpg)
negative effects of using energy
Increasing CO2 pollution
global warming
![Page 12: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/12.jpg)
Pre-reading
![Page 13: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/13.jpg)
Pre-readingWhat 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.
![Page 14: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/14.jpg)
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.
![Page 15: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/15.jpg)
ReadingReading
The earth is becoming warmer— but does it matter?
更多资源xiti123.taobao.com
![Page 16: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/16.jpg)
Main idea of each part Writing techniquesWhile- reading
Paragraph 1Introduce a debating overthe issue of global warming
Paragraph 2-4Illustrate how global warming comes about
Paragraph 5-10List 2 different attitudes among scientists towards GW.
Paragraph 11whether people should do something about GW. or not.
raising a question
giving examples,using graphs, explanation
give examples, making contrast
Using a question, leaving readers to think over the issue
![Page 17: Unit6 Global warming](https://reader031.vdocuments.mx/reader031/viewer/2022031901/56812cf0550346895d91ba93/html5/thumbnails/17.jpg)
Should we do nothing about global warming?
Debate:
Homework:Homework: