综合英语 课件综合英语1 7.ppt

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1、ContentsTextAEnvironmentPollutionTextBLandPollutionWorkontheTextMoreWorkontheTextVocabularyPhoneticsGrammarPracticalWritingTextAEnvironmentPollutionLearningInstructionsWiththedevelopmentofsociety,theenvironmentpollutionisbecomingincreasinglyconspicuous.Ithasbee

2、nregardedasabigthreattohumanbeing.Manymorepeoplehaveheldtheirattentiontothisproblem.Everyoneshouldrealizethatprotectingenvironmentisourobligatoryresponsibility.Inordertotakeeffectivemeasures,itisnecessaryforustoknowmoreaboutenvironmentpollution.Thisarticlemainl

3、ytalksaboutseveralmajorpollutantsandtheirbadimpactonenvironment.Itwillhelptoarouseyourenvironmentalawareness.TextAEnvironmentPollutionWarm-upActivitiesGroupwork:Workinsmallgroupsanddiscussthefollowingquestions:Doyouthinkyourhometownhasbeenpollutedinrecentyears?

4、Giveanexampletodemonstrate.Haveyouheardofgreenhouseeffect?Doyouthinkitistheresultofenvironmentpollution?Listentotherecordingandthenanswerthefollowingquestions:Whatarethemajorsourcesofenvironmentpollution?Isenvironmentpollutionstillontherisenow?TextAEnvironmentP

5、ollutionInournature,environmentpollutionisthesinglebiggestthreattoourcurrentwayoflife.Thereareanumberofvariablesourcesofenvironmentpollution,includingairpollution,waterpollution,groundwaterpollution,andlandpollution.Ofcoursenoisepollutionisanothergrowingsourceo

6、fproblematicpollutioninourworldaswell.Everyaspectofpollutantscarriesaveryseriousconsequenceinourdailyandworldlyenvironment.Thehistoryofairpollutionisalongandinvolvedone.FromtheMiddleAgesandbeyond,therehavebeenissuesregardingairpollutionthathaveproventhatairqual

7、ityisaffectedbynearlyeverysubstancethatweinsistonburning.Coalburningcreatedsmog,anditsassociatedhealthproblems,sincetheMiddleAges.The18ththroughthe19thcenturiessawserioushealtheffectsontheenvironmentthankstotheburningofcoal.Smogiscertainlyfarfromanewproblem,and

8、inourenvironmentpollutionstillplaguesthecitiesandtownsoftheworld.Waterpollutionisyetanotherplaguethatcompoundsthehealthofthenaturalworld.Waterpollutioncontaminateseverything