人教版高中英语选修六book6unit4reading(共40张)课件.ppt--(课件中不含音视频)
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1、Book 6 Unit 4 Global warmingBook 6 Unit 4 Global warmingLook at the picture and what can you know from it?234What people are doing1 light things that use energy in your home micro-wave oven television hairdryer video player fridge computer washing machine stoveDo you know how energy is produced?How
2、many sources of energy can you list?Wind energy is used as power to produce electricity.windmillsElectricity is produced by burning coals.coal power stationsOil is refined and made pure.oil refineries人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)Nuclear energy is converted
3、into electricity.nuclear power plant人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)pieces of equipment on a roof that collects energy from sunlight in order to heat water and produce electricity solar panels人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张
4、PPT)Water are kept back and raised its level for irrigation or for producing electricity.hydro-electric dams人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)geothermal(地热的地热的)energy plantElectricity is generated from hot dry rocks.人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六
5、book6unit4reading(共40张PPT)Which source is cleaner or healthier?Which source is“renewable”?Thinking:Coal oil wind sun nuclear water underground heat人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)non-renewablerenewable人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4rea
6、ding(共40张PPT)Carbon Carbon dioxidedioxidecoaloil natural gasglobal warming Why?Fossil Fuels人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)1.Do you know what it is?A greenhouseWhat is it used for?What is it used for?Pre-reading:人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六bo
7、ok6unit4reading(共40张PPT)A greenhouse is made of _ and is used for _,especially during _weather.growing plantsglasscold 人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)2.How does the greenhouse work?人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)The ai
8、r inside was warm because the glass traps(挡住挡住,吸收吸收)the heat from the sun and keeps it from escaping(逃跑逃跑).This makes the greenhouse heat up(热量热量上升上升)and so the plants can grow throughout(在在期间期间)the cold period.人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)3.What are Greenh
9、ouse gases?In the atmosphere surrounding the earth there are gases,which are called“greenhouse gases”,mainly including _,and water vapor(水蒸气水蒸气).carbon dioxide人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)4.Greenhouse EffectGlobal warmingGreenhouse gases trapped the heat fr
10、om the sun,which causes the temperature of earth goes up.人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)The Earth is Becoming Warmer -But Does It Matter?Reading人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语
11、选修六book6unit4reading(共40张PPT)Skim the title:THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?A.The earth.B.Global warming.C.Becoming warmer doesnt matter.人教版高中英语选修六book6unit4reading(共40张PPT)人教版高中英语选修六book6unit4reading(共40张PPT)Skimming2.This article is from _.A.An environmental magazine.B.A diaryC.A n
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