Unit1keyWatchingPart1I.1.C2.C3.DII.photographingcheetahshelping(save)cheetahsMoremiWildlifeReserve,BotswanaChrisJohns,photographer;DaveHamman,guidetrucks,camerasPart2I.AII.1.inthebrush,whattheyhadbeenhopingfor2.lossofhabitat3.extinct,unspeakable4.naturalworld5.capable,gain6.makeakillPart3I.(C)→(A)→(F)→(B)→(E)→(D)II.1.week2.fine3.morning4.reedbucks5.preyIII.1.Thechallengeistokeepyourconcentration,toconstantlylook.2.Theyscaneverythingfromheavybushestoopengrasslands,hopingtocatchsightofher.3.Chrismustwaittoseeifthemothercheetahwilllethimbackintohertrust.4.Themenmustdriveasquicklyaspossibleinordertogettheshot.5.Ifanotherpredatormovedinonher,themothercouldbeambushed.Part4I.1.F2.T3.F4.T5.FII.1.clicks2.focuses3.freezes4.walks5.smell6.lickFollow-upI.Day1?:GDay2?:B,C,DDay3:FAweeklater:A,EReadingReadingComprehensionDBDDCBAcapturingcautiousprotectHomeListeningI.C,D,AII.1.T2.T3.F4.F.5.FIII.1.Studieshaveshownthatalmostalllivingthingswilleventuallybecomeextinct.2.Inmanycases,replacementspeciesemergeovertime.3.Humanactivityishavingatremendousnegativeimpactonextinctionrates.4.Someoftheworld’sspeciescannotsurvivewithouthelp.5.Somegroupsmayhaveavestedinterestinnotprotectingcertainspecies.KeytoWatch,ListenandRead(Unit2)WarmupI.2.carnivore3.blubber4.Arctic5.marinemammalII.FBCGDAEPart1I.FTTTFII.EdgeinhospitablethrivemammalsurvivalfrozenadjustmentsinsulatedreservesIII.1.Oneanimalactuallythrivesinthesefreezing,lonelysurroundings.2.Thesemarinemammalsspendmostoftheirlivesonfrozenseas.3.Polarbearsdon’tenjoytheluxuryofanuninterruptedwinter.4.UnlikethehighArctic,there’snopermanenticepackhere.5.WhentheBaymelts,thebearsareforcedtoshore.Part2.I.Whentheweatherstartstoturncold,largenumbersofthemgatheraroundthecoast.Atthistime,peoplecanobservethematcloserange.2.TheyareeagerlywaitingfortheBaytofreezesothattheycangobacktothefrozeniceandtheirfoodsource.3.Peopleuse“tundrabuggies”,aspecially-designedtruck,toseethem.4.Becausenootheranimalhuntsthem,andtheyareatthetopofthefoodchain.II.1.private2.company3.adult4.considered5.conservationPart3I.CDBEAII.parallelsconcernedstablepatternscriticalexistenceconductedadvancementstabilitylengthimpactPart4I.ACDBEII.(1)endangeredanimals(2)a(n)caringworld(3)a(n)keytounderstandingtheArctic(4)ensuretheirsurvival(5)conservationefforts(6)umbrellaspecies(7)thepolarbears’futureliesintheanswerstothesequestionsReading：ADCDDABtopkillers/anumbrellaspeciesThestabilityorthelengthofthetimeThesameenvironment(aspolarbears)Homelistening:I:,,/100/1,473/2008II:1:Greenhousegasesareproducedbycarandtruckexhaust,factorysmoke,andtheburningofcertainsubstancesforheatandlight.2:Theeffectsofglobalwarmingwillmostlikelyappearinanimalpopulationsfirst.3:Environmentalgroups,notonlygovernmentalonesbutalsoprivategroups,areworkingtowardsthisgoal.4:TheUnitedNationshasorganizedinternationalgatheringstoapproachthisproblem,andhasproducedadocumentknownasthe“KyotoProtocol”.5:Theseriousdrawbackofthe“KyotoProtocol”isthatthisdocumentdoesn’tincludestrictenforcementproceduresforimplementingtheprogram.III:1—D–mating2---B---nesting3—A—flowering4---C—annualUnit3:TheBlackDiamondsofProvenceI.Truffles.Readtheparagraph.Thenlabelthepicturewiththeunderlinedwords.Key:1.lavender2.yellowlab3.treeroots4.trufflesII.TheTruffleBusiness.Readtheparagraph.Thenmatcheachwordorphrasewiththecorrectdefinition.Key:1.e2.d3.c...
