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项中选出最佳选项。听完每段录音后,你都有10秒钟的时间来回答有关小题和A.At6:00.B.At6:30.2.Whatdoesthemanprobablywantthewoma4.Howisthemandoingwithhi6.Whichuniversitydoesthewomanmos7.WhatdoesthewomanpC.Joininvolunteer8.Whatisthemntopicoftheconversation?A.Diet.B.Housework.C.University9.Whatdoesthemanthinkofcleaning?A.Noodles.B.B.Bysettingadeadlineforherself.C.BymakingthemsmallandA.Havingdinner.B.Fillingherbag15.WhatdoesthemanA.Rewarding.B.Demanding.B.TostresstheimpC.ToinvitethelistenerstAisteredvolunteerswillbeprovidedwiththepabeforetheevent.Wearen’tabletoaccommodaEatonFirechangedthiscanyon—back,andthelandisshowingsithatrecoveryholds:foreignplantsthreneedtogointhegroundtostrengthenGovernor’sOfficeofStobeawarmday,sopleasebringyou●LunchfromFrOaksBEatonCanyonremnsclosedvisittheCanyonwithoutpriorregistrationandconfirmati21.WhatisthemofEatonCanyonLandRestoration?22.Howmanyorganizationscooperatewith23.WhatdoweknowaboutthereC.Bottledwaterisprovided.Bspendshisworkinghoursbendingoverapianowithatuningwrench,adjustingthestrings.“I’mnotaconchearwhatmostpeoplesimplywalkpast.”ChrisrunsLegacyPianoServices,tuningandrest(震动)hundredsoftimespersecond,”Chrisexplns.“Turnthetuningpin(指针)toofarandthenotegoesflatorsharp.Youhavetofeelit,notjusthearit.”Herarelyuseselectronicapps,preferringhistrnedear,thoughhekeepsatuningforkforreference.fortheroom.”Ofcourse,noteverythinggoessmoothly.Chrisforthirtyyears,withbrokenstringsis—bringingnewlifetopianosfacewhentheyheartheirgrandmother’soldpianosingagn—that’swhyIdothis.”A.Laweducation.B.Pianotalent.A.EmployingadvanceddigitaldevicB.UsingtuningtoolsunavlabletooD.Adjustingfortheheatgeneratedbylist26.WhatbringsChris’sgreatestpA.GningchancestoperforminconcerB.CooperatingwithcelebratedmusiC.InstructingothersinpianomD.Restoringforgotteninstrument27.WhichwordsbestdescribeChris’sattitudetohiA.Carefulanddevoted.C.Seriousandcurious.Cbirdscientists.Accordingtotheirresearch,numerousbinglyrare,fromtheAmazonrnforesPanama.foundbirdsaredisappearingfromsurprisingplaces—expansesofforestuntfires,loggingorhumanclearing.Thesearen’tmigratoryspecihabitatlossondistantcontinents;manyspendthgestingtheyarenotwellfed.Thehardest-hitspeciesareinsect-eatiexploretheexactlinkbetweenclimatepatternsandbirdsurvival,researcherslaunchedsupplementingdry-sresultsarepromising:comparedwithbirdsinunwateredareas,thoseinwateredarhavehigherfatlevels,fewerstresssignalsandmoreactiveraconclusion:climatechangeistheleadingcauseofthemysteriousbirddeclineinun-agethefoodchnbyreducinginsectnumbAlthoughtheresearchmighthelpexplnwhybirdsaredisappearing,itmaynotasmuchaspossible,”saysCoreyA.Damagetoforestbirdhabitats.B.SecretsofbioC.Declineofforestbirdpopulations.D.Threatstoendangeredbirdspecies.29.WhatcanbeinferredfromparaA.ForestbirdshardlyrelyoninseB.Foodshortageaccountsforthelossofbirds.C.MigratorybirdsarefacinggreaterD.Humanactivitiesaretoblamefo30.WhydidresearchersconducttheAmaB.TorestoredamagD.Toprotectendang31.WhatisthebesttitleA.ForestBirds:TheVictimsofHabitatDestrucB.IrrigationTest:ACC.ClimateChange:AHiddenThreattoD.InsectDecline:TheUnderlyingCauseofBirdLossDAginghasaseriousimpactonthehippocampus,thepartofthebrnthatplaysaaproteinthatappearstodrivemuchofthedeclineofmemory.Tounderstandwhatchangeswiproteinsinthehippocampusofcognitive(认知的)tests.rnsbegantolookandfunctionmorelikethoserreflectedthisshift.Labexperimentsrevealedmoredetls.Nervecellsengineerextensionsinsteadofthecomplex,branchingnetworksseeninhealthycells.theirperformanceonmemorytestsimprovInoldermice,higherlevelsoftheproteinslowedcelluthehippocampus.However,whenresearcherstreatedthesecellswithacompoundthatboostsmetabolism,thenegativeeffectswereprevepavethewayfortreatmentsthatseeingmoreopportuhopefultimetobeworkingonthebiologyofaging.”A.Becauseitisthedriverofaging.B.Becauseitisessential33.Whatdoestheunderlinedword“engineered”inpaA.Modified.B.Ignored.34.WhatcanbelearnedaboA.ItreducesbrneneC.Itboostscellmetabolism.35.Whichaspectofthestudydoesthelastparagraphmnlytalkabout?youimmediately.Luckily,thereareBecuriousandbewillingtolearnandbettermeetnewjobrequirements.Haveagoodsenseofjudgment.Whenworkingorstudyinginnewsurroundings,long-termgoalsandinsistonwhatistrelf,holdyourheadhighd 39Besides,treatyourteammateswithrespecA.It’sunnecessarytowtforB.Forexample,youmayfeelnervousinajobinterview.C.YoushouldnotbetrouD.ManypeoplefindithardtoadapttoneweE.Inthisway,youcanquicklygeF.PeoplewhokeepanopenmindtonewG.TrytofindtheideasthatcanbringMylife-changingexpetheworld.ThatmayseemlifeandmademerealizeIwasexiandit44myperspective.Welearnedhingpartinactivitiesliketakingpictureswithlargecatsorridinge loverbutbeingupclosewithelephants49somethingwithinmeandmademewanttogiveback.WhenIleftThland,my50ofhappinesschanged.Itwasnowithmaterialpossessions,butwiththe52oflifeIlongedfor.Irealizedfamilies,Idecidedto54oneofthemostinvalu41.A.reasonableB.simpleC.certn42.A.disturbedB.transformedC.prote43.A.tripB.jobC.care44.A.presentedB.reshapedC.b45.A.promisingB.confusing47.A.cheatedB.rescued49.A.awakenedB.balanced50.A.experienceB.journeyC.memoryD.definition52.A.habitB.miracle53.A.remns54.A.takebackB.giveupC.breakthroughD.putoff55.A.controlB.buyChineseembroidery,knownas“(represent)a
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