国际英语2电子教案B2_U4PPT格式课件下载.ppt
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国际英语2电子教案B2_U4PPT格式课件下载.ppt
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CoverCONTENTBook2Unit4-Environment-Text(A)-Text(B)Book2Unit4-EnvironmentContent-2TextstudyTextstudyBackgroundinformationWordsandexpressionsTextLookingatthetextLookingatthetextWorkingwithwordsWorkingwithwordsListeningListeningListening1Listening2Listening3PeopleandissuesText(A)Book2Unit4-EnvironmentContent-3TextstudyTextstudyBackgroundinformationWordsandexpressionsTextLookingatthetextLookingatthetextWorkingwithwordsWorkingwithwordsListening4Listening5ListeningListeningSpeakingSpeakingPersonalviewText(B)Book2Unit4-EnvironmentBriefsummaryoftheunitTopicsEnvironmentalpollutionTheeffectsofglobalwarmingEnvironmentallyfriendlymethodsoftransportRecycledgoodsReducingtheproductionofpersonalgarbageWaysofsavingenergyBeingenvironmentallyawareSkillsWritingasummaryInterpretingwarningsignsExplainingaprocessComparingtwotexts,lookingatkeypointsWriting:
@#@WritingareportonsafetysignsProject:
@#@AnalysingrubbishproducedbystudentsGrammarAdverbialclausesBook2Unit4-EnvironmentWarmingupCarbondioxideisoneofthesimplestandcommonestmoleculesintheuniverse.Ithasonlythreeatomsonecarbonandtwooxygenatoms.Webreatheoutcarbondioxide.Plantsbreatheincarbondioxideandgiveoffoxygen,whichiswhyweneedplantsandgreenbeltsaroundthecity.Whatkindsofpollutiondoyouknow?
@#@Pleaselookoutofthewindowandanswerwhatpollutionthereisoutthereandgiveexamplesofhowitisproduced.DoyouknowwhatCO2is?
@#@_Book2Unit4-Environment1.Whatkindsofpollutionareshowninthesepictures?
@#@airpollutionFocuswaterandenvironmentalpollutionBook2Unit4-EnvironmentFocuswaterpollutionairpollutionBook2Unit4-EnvironmentFocusnoisepollutionwaterandenvironmentalpollutionnoisepollutionBook2Unit4-EnvironmentFocus2.Workwithapartnerandfindmoreexamplesofthesekindsofpollution.Anotherexampleofenvironmentalpollutioniswhenwethrowourrubbishinthestreetoroutofcars.Eventhrowingrubbisharoundintheschoolisenvironmentalpollution.AnotherexampleofnoisepollutioniswhenoneplayshismusictooloudlyorhastheTVonfullvolume.Waterpollutioniswhenanoiltankerbreaksupandlosesitscargo.Airpollutioniswhenalotofpeoplesmokeinoneroom,orwhenonlyonepersonistravellinginacarinsteadoffourpeople.Book2Unit4-EnvironmentFocus3.Whatcanwedotostopthis?
@#@Wecanstopthisbynotusingthecarforshortjourneysandwalkingortakingpublictransport.Wecouldputahighertaxonfuelsothatpeoplewouldnottravelaloneintheircarbutsharethecost.Book2Unit4-EnvironmentFocus4.Whatcanyoupersonallydo?
@#@Icanstopsmoking.Icanstopthrowingrubbishinthestreets.Icantrytorecyclemyrubbishbyputtingitinthepropercontainers.IcanturndownthevolumeoftheTVormymusicsystem.Book2Unit4-EnvironmentTheUnitedNationsEnvironmentProgramme(UNEP)isaninternationalinstitution(aprogramme,ratherthananagencyoftheUN)thatcoordinatesUnitedNationsenvironmentalactivities,assistingdevelopingcountriesinimplementingenvironmentallysoundpoliciesandpractices.Itsactivitiescoverawiderangeofissuesregardingtheatmosphere,marineandterrestrialecosystems,environmentalgovernanceandgreeneconomy.Ithasplayedasignificantroleindevelopinginternationalenvironmentalconventions,promotingenvironmentalscienceandinformationandillustratingthewaythatcanbeimplementedinconjunctionwithpolicy,workingonthedevelopmentandimplementationofpolicywithnationalgovernments,regionalinstitutionsinconjunctionwithenvironmentalnon-governmentalorganizations(NGOs).UNEPhasalsobeenactiveinfundingandimplementingenvironment-relateddevelopmentprojects.BackgroundinformationWordsandexpressionsTextTextstudy(A)UnitedNationsEnvironmentProgrammeTextA-background-1-1Book2Unit4-EnvironmentBackgroundinformationWordsandexpressionsTextCycloneInmeteorology,acycloneisanareaofclosed,circularfluidmotionrotatinginthesamedirectionastheEarth.Thisisusuallycharacterizedbyinwardspiralingwindsthatrotateanti-clockwiseintheNorthernHemisphereandclockwiseintheSouthernHemisphereoftheEarth.Mostlarge-scalecycloniccirculationsarecenteredonareasoflowatmosphericpressure.Thelargestlow-pressuresystemsarecold-corepolarcyclonesandextratropicalcycloneswhichlieonthesynopticscale.Cyclonescanproducecloudyweatherandbroadareasofrainandevensnow.TextA-background-2Textstudy(A)Book2Unit4-Environmentdesperatelyadv.veryorverymuch极度地,极强烈地environmentn.surroundings环境committeen.agroupofpeoplechosentodoaparticularjob,makedecisions,etc.委员会criticaladj.seriousorworrying危急的,严重的industrialadj.relatingtoindustry工业的climaten.weather气候BackgroundinformationWordsandexpressionsTextTextA-wordsandexpressions-1Textstudy(A)Boo
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