2023学年完整公开课版Unit6TheEnvironment教学

UnitSixTheEnvironmentdifferentkindsofpollutions

Theoceansareunderthreat;theyarethreatenedwithhumanactivities,differentkindsofpollutions…

OceansunderthreatNewwordsandexpressions:marine

creaturesshellfishcoralreefNewwordsandexpressions:Wewilllinkyourpersonalcomputer(PC)withournetwork;thusyoucansearchfortheinformationfromournetwork.Newwordsandexpressions:Mencan’tlivewithoutblood,whichcirculatesaroundthebody.Newwordsandexpressions:Lookatthesebeautifultropicalfishes;theyarefromthehottestpartsoftheworldNewwordsandexpressions:Whentraveling,Iliketobuysomesouvenirs.Iwillkeepsomeofthemformyself,andsendtheresttomyfriends.Newwordsandexpressions:Don’tdisturbmewhenIamworking;Idon’tliketobeinterrupted.Newwordsandexpressions:ShanghaiisoneofthecoastalcitiesinChina.Newwordsandexpressions:Hereisarubbishbininwhichyoucandumpthewastes.Manywastespileupontheground.Newwordsandexpressions:Ithinkyou’verecovered

fromtheillness,foryoulookquitewell.Newwordsandexpressions:Governmentsmakelawsandthepoliceenforcethem.Newwordsandexpressions:Everynight,youcanseeseveralpolicemenpatrolthestreetsregularly.Theirdutyistogoroundtocheckandmakesurethereisnotroubleordanger.continentalshelfThefoodchain

Readthenewwordsandexpressions:tropical adj. 热带的 link v. 连接coral n. 珊瑚 circulate v. 循环reef n. 珊瑚礁 coastal adj. 沿海岸的shellfish n. 水生贝壳类生物 marine adj.海洋的 souvenirn. 纪念品 disturb v. 打扰dump v.&n. 倾倒(垃圾) recover v. 恢复enforce v. 强制执行 thefoodchain 食物链patrol v. 巡逻 continentalshelf大陆架threat n. 威胁 pileup 堆起GroupActivitiesFourpassages:OverfishingThreatstoMarineLifePollutionPossibleSolutionsSteps: 1. Readthepassagecarefully,answerthe questionsbelow,andselectoneanswer sheettoputitonthewall.2. Readthequestionsoftheotherthree passagescarefully,AorganizeC,D,E(E+F)to findtheanswers onthewallandBtoputdown theanswers,andthenAchecktheanswers.

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Justfindoneanswereachtime.3. WiththehelpofA&B,thegroupmembers completeallthequestions.Answerstothequestions:Overfishing:Whatdofishingboatsdowiththeoceanwaters? Fishingboatswithhugenetstaketoomanyfishfromasmallarea,andcausesomeoceanwaterstobeoverfished.Whataretheimpactsofoverfishing? First,therearenotenoughfishlefttobreedintheseareas. Second,otherfishinthefoodchainarealsoaffected. Third,therearenotenoughfishforpeopletoeat.Whatmeasurehasbeentakeninsomeareas? Peoplehavesetlimitsforthenumberoffishtobecaughtatonetime.Threatstomarinelife:1. Whathavepeopledonewiththemarinelife? Peoplehavekilledsomanyofsomespeciesforfoodorsportthattheybecomerare.2. Whathasattractedthetouristsordiverstostayunderwater? First,coralreefsintropicalislandsandcoasts. Second,lookingforfunandsouvenirs.3. Whataretheadvantagesanddisadvantagesofpeopletravelingunderwater? Advantages: travelingunderwaterhelpspeopledevelopanunderstandingofmarinelife. Disadvantages:1).Coralandshellfisharedestroyedby heavyboats. 2).Thenaturalcyclesofmarinelifeare disturbed.Pollution:Whatdoesthepollutionofoceansmainlycomefromandwheredoesitmosthappen? Pollutionmainlycomesfromindustryandhappensincoastalareas.Whichfourverbsdescribetheformation(形成)ofthepollution?

dump,wash,settle,pileup.What’stheresultofpeopledumping? First,pollutantspileuponacontinentalshelf. Second,themarinelifearepoisonedandmayneverrecover.PossibleSolutions:Whatshouldpeopleallovertheworlddotogether? First,theyshouldworktogethertoshareoceanresourcesfairly. Second,theyshouldmakelawsandenforceregulationstostopoverfishingandpollution.Isithardoreasyforpeopletocarryoutthesolutions? Itishardbecausetheoceansarevastanddifficulttopatrol.Text-retelling:Peopleuseoceansfor___,travel,___,andrecreation.Wealsotake___and___fromoceans.Allthese___canhave___effectson___andthecreaturesthatliveinthem.___and___arethemostcommonproblems.Oceans___countriesallovertheworld;seawater___aroundtheglobe,sowhatwedoin___partoftheoceancanaffect___.Peopleuse___for___,___,___,and___.Wealso______and___from___.Allthese___canhave______on___and___that___inthem.___and___arethemost___problems.Oceans______allovertheworld;seawater______