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
12、ovel D.A story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.Who wrote the article?Sophie Armstrong 4.What is the name of the magazine?Earth Care 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）C.Introduction of global warming A.How global warming c
13、omes aboutB.List two different attitudes towards global warmingD.Whether people should do something about global warming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）Skim:Para.1Para.2-5Para.6Para.7 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）Who
14、writes this article?Sophie Armstrong of Earth CareWhat happened during 20th century?The temperature of the earth rose about one degreeCareful readingIntroduction of global warming.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._1._(2-5)How global warming comes about?the bu
15、rning of fossil fuels human activityCarbon dioxideMethaneWhat are the greenhouse gases?1.2.3.Water vapor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 the two graphs about?Graph 1 shows the temperature increase of one degree Fahrenheit between 1860 to 2000.Graph 2
16、 shows the carbon dioxide content in the atmosphere from 1957 to 1997.Graph 1:Graph 2: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）What are the different attitudes towards global warming?6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）Part3(6-7)Dr.
17、Janice FosterGeorge Hambleypessimisticoptimistic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）Part3(6-7)a rise in the see levelsevere stormsdroughtsFloods DroughtsFaminesSpread of diseasesDisappearance of species optimisticIt is a _ thing,which makes plants grow _;crops wil
18、l produce _;it will encourage a greater range of _ all of which will make life _.positivequickermoreanimalsbetterDr.Janice FosterGeorge Hambley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）Part3(6-7)Do they draw a conclusion at last?No人教版高中英语选修六book6unit4reading（共40张PPT）人教版
19、高中英语选修六book6unit4reading（共40张PPT）Step 4 DiscussionNo one knows the effects of global warming.Does that mean we should do nothing?Now lets listen to a song and then give your opinions.在你心中有个地方，我知道那里充满了爱。这个地方会比明天更灿烂。如果你真的努力过，你会发觉不必哭泣。在这个地方，你感觉不到伤痛或烦忧。到那个地方的方法很多，如果你真心关怀生者，营造一些空间。创造一个更美好的地方.拯救这世界，让它变得更好
20、，为你、为我，为了全人类。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）Discussion（讨论）ABA:We shall do something about global warming.B:We shall do nothing about global warming.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）Lets live a low-carbon life！人教版高中英语选修六b
21、ook6unit4reading（共40张PPT）人教版高中英语选修六book6unit4reading（共40张PPT）Turn electrical appliances off when not using them.Put on more clothes,dont turn up the heat.Walk or ride a bike,dont drive.Recycle cans,bottles,plastic bags and newspapers.Buy things made from recycled materials.Buy products that use less
22、 energy.Plant trees.Talk with family and friends about global warming.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）Homework1.Read the passage again and recite the new words and expressions.2.Preview the language points.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）
