核心英语下册核心英语下册Unit 5电子教案.ppt

《核心英语下册核心英语下册Unit 5电子教案.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、HigherVocationalEnglishUnit5:EnvironmentalProtectionBackgroundReferencesBackgroundReferencesWhatispollution?Pollutionistheintroductionofcontaminantsintoanenvironmentthatcausesinstability,disorder,harmordiscomforttotheecosystem.Pollutioncantaketheformofchemicalsubstances,orenergy,suchasnoise

2、,heat,orlight.BackgroundReferencesTheMajorForms•Airpollution---thereleaseofchemicalsandparticulatesintotheatmosphere.•Waterpollution---thereleaseofwasteproductsandcontaminantsintosurfacerunoffintoriverdrainagesystemsBackgroundReferencesTheMajorForms•Soilcontamination---chemicalsarereleased/

3、soilcontaminantsarehydrocarbons,heavymetals,•Littering---livingwastesBackgroundReferencesRadioactivecontamination---nuclearpowergenerationandnuclearweaponsresearch,manufactureanddeployment.•Noisepollution---roadwaynoise,aircraftnoise,industrialnoiseaswellashigh-intensitysonar.TheMajorFormsP

4、racticeBook(answerkey)Part1Activity1Activity2Activity3Part2EarthSongExercise1Exercise2Exercise3Part3Pre-ReadingTextATextBPart4BrainstormingTaskPart5ActivityAnswersMainContentsPartI:SpeakingActivityActivity1:Lookatthesepicturesanddiscusswhatkindsofpollutiontheyare.AirPollutionWaterPollutionN

5、oisePollutionlightPollutionLitterPollutionPartI:SpeakingActivityActivity2:Thestudentsaretoldthattheyareaneducationalcommittee,whichhastoadvisetheprincipalofaschoolonproblemswithstudents’littering.Whatwouldtheyadvisewithregardtotheproblem?Theyshoulddiscusstheirrecommendationandwriteitoutinth

6、eformofalettertotheprincipalafterclass.PartI:SpeakingActivityActivity3:Whatdowedotoprotecttheenvironmentinourdailylife.A:Whatistheenvironmentlikeinyourcountry?B:Notsogood.A:Everyoneshouldworktosolvethisproblem.Ibelievetheenvironmentinyourcitycanbemadebetterandbetter.B:Idon’tthinkso.PartI:Sp

7、eakingActivityConversation1-1:A:Don’tbesosad,eventhelongestdayhasanend.Pleasedon’tforget:“oneforall,allforone!”B:Let’sfaceit,howcanwemakeitthroughthissituation?A:Lookonthebrightside,let’stryourbesttosolvemoreandmore,thenyoucanknowwhatyoucandoaboutit.B:Ih