第15练自然与环保类（一）单词识记：energyislandprotectwasteatmospherebalancestraitcitizendesertoceanpopulationrangepurerubbishvalleywavephenomenonsurvivalconsequencedecline短语扫描：protectsb./sth.from...保护某人/物不受……wastesth.onsb./sth.把某物浪费在某人/物上offthecoast在沿岸的海面上undertheprotectionof在……的保护下awiderangeof各式各样的wavegoodbyetosb.向某人挥手告别asaconsequence/inconsequenceof由于；因为……的缘故comeabout(尤指未经计划地)发生；产生ageingpopulation人口老龄化bring/get...undercontrol使……受控制[跟踪训练]Ⅰ.语境填词1．HadIkepta________(balance)dietforthepastfewyears，Iwouldnothavestomachtroublenow.2．Ifcancersarespottedearlythere’sahighchanceof________(survive)．3．IfBobwasattractedherebytheprospectsoftherapy，Johncamedown________(pure)andsimplytomakemoney.4．TheyareBritish________(市民)butliveinIndiasothattheycanlearnmoreaboutIndianculture.5．APECconferencewasheldinBeijinginafriendly________(气氛)．Ⅱ.单项填空6．Thisfactoryproducedmuchdirtywater，whichresultedinawide________ofenvironmentalproblems.A．branchB．rangeC．speciesD．wave7．—Howdidtheglobalfinancialcrisis________？—I’mnotquitesure.Anyhow，itisaveryimportantproblemfacingus.A．comeupB．comeaboutC．comealongD．comearound8．TheInternetusershavebeenwarnedto________anymessagesthataskyoutosendcashorpersonalinformation，nomatterhowformaltheyare.A．abandonB．rejectC．declineD．withdraw9．Yesterday’sfogwasveryheavyand________alltheflightswerecancelled.A．constantlyB．consequentlyC．continuouslyD．consistently10．Thewhitebuilding，________threatstopullitdown，isnowaprivatehouseinthepossessionofaretiredprofessor.A．survivedB．survivingC．tosurviveD．havingsurvivedⅠ.阅读理解ABiologyorsaxophone？ChrisTempletondidn’tknowwhichtostudyincollege，sohechoseboth.AchancewalkthroughaparkconvincedTempletonthathehadmadetherightchoice.Duringthatwalk，heheardtheexpressivenotes(鸟鸣声)ofablackcappedchickadee(黑头山雀)．AsTempletonlistened，heslowlyrealizedthatthebirdsangadifferenttuneeachtime.“Mymusicaltraininghelpedopenupmyearstothedifferentsoundsthattheanimalsweremaking，”saidTempleton.Feelingcurious，thestudentbeganfocusingonhowdifferentspeciesstyledtheirsongs.Whenbirdsvariedtheircalls，didthatindicatetheyweregivingadifferentmeaningtoeachmessage？Afterreceivingcollegedegreesinmusicandbiology,Templetonbegananindepthstudyofthesoundsanimalsusetocommunicate.Hefocusedonchickadeewarnings.Whenacat，awolforanotherpredator(捕食者)threatensachickadee，thelittlebirdmakesadistinctivechickadeedeedee.“It’swherethebirdsgettheirname，”explainedTempleton.Sometimes,thebirdsvarytheircalls.Manyscientistswanttofindoutwhy.SoTempletondecidedtoshowafewanimalstoagroupofchickadees.Thefirstanimalwasasquirrel，whichpicksattheirfoods.Thesmallbirdsrespondedbyfirstproducinglotsofcalls，thengettingtogetherandattackingit.AsTempletonchangedpredators，herealizedthatthechickadeesalsochangedtheiralarmcallsaccordingly.“Ifyoulistentoachickadeesingingcarefully，youcanfinditaddsmore‘dee’notestotheendofitscallforamoredangerouspredator，”saidTempleton.Chickadeesrelyonagroupofdifferentvocalsignals，about14inall.Eachcontainsalotofinformation.Forasmallpredatoronland，chickadeesusetheirchickadeedeedeecall.Thiscallsnearbychickadeestogatheranddriveitoutoftheareasoitcan’tsneakuponthemlater，explainedTempleton.Meanwhile，ifaraptor(猛禽)fliesoverhe...
