1、Unit 3 Environmental Protection MENULeading-inWhile-classAfter-classPart.1 Leading-inPart.1 Leading-inLeading inWhatisthegraphabout?Whatinformationcanyougetfromit?Leading inHaveyoueverseenthephotobefore?Whatmightbethestorybehindit?Leading inWhathappenedtothepolarbear？Howdoyoufeelwhenyouseethephoto？W
2、hatdoyouthinkmighthavecausedthepolarbearsdeath？Doyouthinkitisrelatedtotheglobaltemperaturerise？Part.2 While-classPart.2 While-classWhile-class阅读全文，找出每一段的主题句，划分文章结构PartParagraphMain idea11-2TheevidenceofdramaticclimatechangethathadanimpactonEarthsecology23Thecauseoftheincreaseintheglobalaveragesurfac
3、etemperature34Theconsequencesoftheriseintemperature45ThesolutionstoreducinggreenhousegasemissionsWhile-classPart 1Para 1introducing the topic a dramatic change in the global climatethe reason for its death Para. 2 finding a dead polar bear Global warming affected Earths ecology.While-classWhathappen
4、edtothepolarbearinthephoto?Whydidthewriterwriteaboutit?Thepolarbeardiedfromlackoffood.ThewriterwroteaboutittoshowhowtheincreaseintemperaturehadanimpactonEarthsecology.While-classWhatevidenceofclimatechangecanyoufindinthesetwoparagraphs？Whatistheauthorspurposeofusingthegraphandthephoto？Canyouuseyourw
5、ordstodescribehowclimatechangehaveinfluencedthepolarbearslife？While-classPara. 3 reasons for the increase in temperaturethenatural“greenhouse effecttheman-made greenhouse effect-producing huge amounts of extra greenhouse gasesWhile-class Whyisthe“natural”greenhouseeffectimportantandnecessary？ Whatar
6、etheconsequencesofhighgreenhousegasemissions?Becausegreenhousegasesintheatmospheretrapsomeoftheheat,keepingEarthsclimatewarmandhabitable.Withoutthisprocess,Earthcouldnotsustainlife. Moreheatenergyistrappedintheatmosphere,whichcausesEarthssurfacetemperaturetorisequickly.While-classDiagramsareveryusef
7、ultoolsthatcanbeusedtobrainstormideas,mapoutprocesses,showcauseandeffectrelationships,explainanewideaorconcept,andsoon.Whenyoureadanessayaboutscientificissues,youcantrydrawingadiagram,whichwillnotonlyallowyoutovisualisetheproblemsmoreclearlybutalsocanhelpdemonstrateyourcreativethinkingandproblem-sol
8、ving.While-classWhile-classPara. 4 results of the rise in temperaturean increase in extreme weather and natural disasters worldwideclimate scientists calling on people to take appropriate actionsWhile-classWhydidtheauthormentiontheclimatescientistswarning?Becausethewarmingtrendwillcausegreatdamageto
9、humanbeings.While-classPara. 5 how we reactGovernments need to make policies and take measures to reduce greenhouse gas emissions.Individuals restrict the amount of carbon dioxide their lifestyles produce.While-classWhatistheauthorspurposeofwritingthistext?Toattracttheattentionofpeopleallovertheworl
10、dtofocusonclimatechangeandtakeactionstoreducegreenhousegasemissionsandthecarbonfootprint.Part.3 After-classPart.3 After-classAfter-class1Whatexamplesofextremeweatheranddisastersdoyouknow?Canyoumakealist?2Doyouthinkclimatechangeistheresultofhumanactivity?Giveyourreasons.3Whodoyouthinkshouldtakeresponsibilityfordealingwithclimatechange?Whatcanwedo?Thank you!
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