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海量资源尽在星星文库：!Directions:Herearethemajorproblemsfacingtheearth.Workwithyourpartnerandfigureoutthecausesandpossiblesolutions.ProblemsCausesSolutions1.waterpollution2.Trash/garbage3.Airpollution4.Deforestation(采伐森林)5.Desertification(沙漠化)6.Hunger7.Deadlydiseases8._____________Task2What’sthebiggestproblem?Directions:Amongtheproblemslistedabove,whichdoyouthinkisthebiggestone?Ifyoupartnerdisagrees,thenyou’llhavetopersuadehim/her.Task3Polarbears’problem.Directions:Gothroughthefollowingpassageandfinishoffthetasks.1.Completethetextwiththephrases:A.onaverage;B.waitfor;C.livethrough;D.beforcedto;E.liveawayfrom;2.Whyarepolarbearsgettingthinner?3.Isitgoodforbearstogetthinner?Aretheygoingtodieout?4.Besidespolarbears,whatotheranimalsdoesthewarminguphaveeffecton?5.Whatarethepossiblecausesoftheclimategettingwarmer?Whatcanbedonetostopit?Polarbearsaregettingthinner.Itisnotadietanditisnotbecausethereislessfoodtocatch.Itisbecausetheworldisgettingwarmer.GiantwhitebearsthatliveinthenorthofCanadaareatthemomentimpatiently(1)icetoform.Theyneedtheicetoformabridgetotheirfood—seals.Sealsusually(2)landamongtheicebergs.However,astheclimatebecomeswarmer,winterisgettingshorterandseaiceisdecreasinginthearea.Thisismakingpolarbears'livesincreasinglydifficult.Bearsneedtoeatasmuchfoodaspossibleinthewintertomakethemselvesfatenoughto(3)fivemonthswithoutfoodinthesummerandautumn.Duringthefive-monthice-freeseason,thebears(4)fast(绝食).Foreveryweekabearhasnotbeenhuntingfoodonice,itis10kilogramslighter,saidascientist.Theaveragetemperatureoftheregionhasrisenfrom0.3to0.4degreescentigradesince1950.Withthechangeoftheclimate,theseaiceismeltingearlierinthespring.Thusthehuntingseasonforbearsisgettingshorter.Andthebears,(5),weighbetween80and85kilogramslessthantheydidin1985.II.Understandingthetext1.WhichisTRUEabouttheEarthSummit?A.It’sheldevery3yearsinStockholm,SwedenB.Sofarithasbeenheldtwice:in1972andin2002C.‘Sustainabledevelopment’istheonlythemeofthesummitD.Atthesummitpeoplediscusshowtotakegoodcareoftheearth2.Inthetext,the‘bigthree’are__________________.A.water,healthandairB.poverty,war,andviolenceC.contaminateddrinkingwater,poorsanitationandairpollutionD.sustainabledevelopment,contaminateddrinkingwater,andpollution海量资源尽在星星文库：’sabigproblemindevelopingcountries5.Atthesummit,China’sthenPremierZhuRongjiprobablymentionedthefollowingEXCEPT____________.A.internationalcooperationB.sustainabledevelopmentC.waysofpreventingADISfromspreadingD.equalityandfairnessintheworld6.Onevisitor’swordsarequotedinthetextinordertoshow_________________.A.thattheEarthSummitisverypopularamongordinarypeopleB.thatwecouldhelpsavetheearthbychangingtheirwayoflifeC.howwecandeveloptheworldwithoutdamagingtheenvironmentD.howpeoplecanstopthedeathandsufferingcausedbythebigthree7.‘Abetterofunderstandingoftheenvironmentisnecessary,asisthewillingnesstoact(Para.6)’.Theunderlinedwordcanbereplacedby____________.A.whichB.soC.andD.butIII.Post-readingactivityGiveahealthchecktotheearthTheEarthSummit,theworldmeetingonsustainabledevelopment,hasbeenorganizedbytheUN.Itisthelargestinternational(1)inhistory.Peopleatthesummitarediscussing(2)ofimportancetotheearth'scontinueddevelopment,suchas(3)andpollution.Whoisattendingthesummit?Morethan100(4)ofgovernmentareattending,includingChinesePremierZhuRongjiandBritishPrimeMinisterTonyBlair.Whenwasthelastsummit?Ithasbeen10yearssincethelastEarthSummitinRiodeJaneiro(里约热内卢)inBrazil.Thepeopleattendingthatmeetingadopted(正式通过)Agenda21,aworld-wideactionplanfor(5).Whatisitsgoal?Itaimstobalanceeconomic(6)anddevelopmentwithenvironmentalsustainability.Theworld's(7)continuestogrow.Thiscreatesanever-greaterneedforfood,water,housing,energy,andjobs.Summitorganizerssayeveryonemustmakebetteruseoftheearth's(8).Todothis,(9)shouldtrynottohurttheenvironmentastheydeveloptheireconomies.Moredevelopedcountriesneedtoworktoreduceglobalpovertyandlessenthe(10)inwealthbetweentherichestandpoorestnations.IV.Languagefocus1.Usageofwords⑴E__________isthestudyoftherelationsbetweenlivingthingsandtheirsurroundings.⑵Wedon’thavemuchtime;Canyous__________yourreportandmakeitshortandbrief?⑶Jennylovestobeahousewife,andshe’squitec_____________tostayathomepoverty;heads;growth;differences;issues;population;naturalresources;conference;developingcountries;sustainabledevelopment;海量资源尽在星星文库：⑷Mr.Wanghasbeenchosenasar___________ofourcompanyandhe’sgoingtoBeijingforthemeetingtomorrow.⑸AIDSisak_____________,whichmakesmillionsofpeoplelosetheirlives.⑹Themovieisnotsuitableforchildren,forthere’salotofaction,sexandv___________init.⑺Asp___________ofourcountry,WenJiabaoishavingabusytimeeveryday.⑻Womenarestillstrugglingfo