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听力1315
Unit13
1.M:
Thismachinehassomanybuttons.Ican’tfigureoutwhichonemakesitrun.
W:
You’dbetterreadtheinsturctionsfirst.Pressingthebuttonrandomlymaycausethemachinetobreakdown.
Q:
Accordingtothewoman,whatshouldthemandofirst?
2.M:
Hastoday’smailarrived?
I’manxioustoknowabouttheresultofmyapplication.
W:
I’vecheckedthemail-box.Thereisnothinginit,butapostcardfromourdaughter.
Q:
Whatdowelearnfromthisconversation?
3.M:
WasRobertelectedtothecommittee?
W:
Yes,infacthewasmadechairman.Butheonlyagreedtotakethejobiftheylethimhavethefinalsay.
Q:
WhatdoesRobertintendtodo?
4.M:
Couldyouhelpme,Sir?
Myflightgotinfifteenminutesago.Everyoneelsehaspickeduptheirluggage,butminehasn’tcomethrough.
W:
I’msorry,Madam.ButI’llgoandfindoutifthereisanymoretocome.
Q:
What’sthewoman’sproblem?
5.M:
Couldyougivemeyourofficephonenumberorfaxnumber,sothatwecancontacteachothermoreoften?
W:
ButI’vebeentryingtofindanewjobinanothercompany.Yousee,I’veworkedhereforthreeyearswithoutaraise.That’sreallyunfiar.
Q:
Whydoesthewomancomplain?
6.M:
Thesewatchesareoutrageouslyexpensive.
W:
Youthinkso?
Youshouldseetheonesinthejewelrystore.
Q:
Whatcanbeinferredfromtheconversation?
7.M:
Whatweneedisaroommatewhoisneatandconsiderate.
W:
That’sright.Let’swritethatinthead:
neatnessandconsiderationamust.
Q:
Whatdothespeakershopetodo?
8.M:
I’mboredwiththesamefoodallthetime.Let’strysomethingdifferentSaturdaynight.
W:
HowaboutanItalianplace?
Q:
Whatdoesthemansuggesttheydo?
9.M:
IfoundaperfectbookbagbutI’mabout20dollarsshort.
W:
Don’tlookforme.Idon’tgetpaidforanotherweek.
Q:
Whatdoesthemanimply?
10.M:
Herearetwoseats.
W:
Don’tyouthinkthesearetooclosetothemoviescreen?
Q:
Whatdoesthewomanimplytheyshoulddo?
11.M:
IsLouisegoingtojoinusforashortbreak?
W:
Yes,ifshecantearherselfawayformherstudies.
Q:
WhatdoesthewomanimplyaboutLouise?
12.M:
Hi,Ann.Whereareyourushingoffto?
W:
I’monmywaytopickupthetextbookforAmericanhistory.I’minshock.It’sgoingtobe65bucks.
Q:
Whatisthewoman’sproblem?
13.M:
I’mawaybehindinmyletterwriting.I’vegottogetstarted.
W:
Who’sgottimetowriteletters?
Examsarecomingup,remember?
Q:
Whatdoesthemanimplythewomanshoulddo?
14.M:
John,I’msorry.ButIforgottobringyourtapeplayerback.
W:
Well,aslongasIgetitbyFriday.
Q:
Whatshouldthewomando?
15.M:
Ijustsawanadontelevisionthatsaidmen’ssuitswereonsaletodayandtomorrowatConrad’smenswear.
W:
Great!
That’sjustwhatI’vebeenwaitingfor.
Q:
Whatwillthemanprobablydo?
Passage1ATalkinaNationalPark
WelcometoYellowstoneNationalPark.Beforewebeginournaturewalktoday,I'dliketogiveyouashorthistoryofourNationalParkService.TheNationalParkServicebeganinthelate1800s.Asmallgroupofexplorershadjustcompletedamonth-longexplorationoftheregionthatisnowYellowstone.Theygatheredaroundthecampfireandafterhoursofdiscussion,theydecidedthattheyshouldnotclaimthislandforthemselves.Theyfeltitshouldbeaccessibletoeveryone.Sotheybeganacampaigntopreservethislandforeveryone'senjoyment.Twoyearslater,inthelate19thcentury,anactofCongress,signedbyPresidentUlyssesS-Grant,proclaimedtheYellowstoneregionapublicpark.Itwasthefirstnationalparkintheworld.AfterYellowstonebecameapublicpark,manyotherareasofgreatscenicimportanceweresetaside.Andin1916theNationalParkServicewasestablishedtomanagetheseparks.Today,therearemorethan360parksintheUSNationalParkSystemandmorethan3,600areasundersimilarprotectionaroundtheglobe.NationalparksandotherpubliclandsshelterwelloverhalfoftheplantandanimalspeciesinNorthAmerica.Andtodaymorethan80countrieshavealsoestablishedseveralhundredsimilarreservesspecificallytoprotectbiologicaldiversity.Asaparkranger,IamanemployeeoftheNationalParkService.Inthenationalpark,parkrangersareondutyatalltimestoanswerquestionsandhelpvisitorsinanydifficulty.Naturewalks,guidedtoursandcampfiretalksareofferedbyspeciallytrainedstaffmembers.TheParkServicealsoprotectstheanimalsandnlantswithintheparks
Passage2PlanstoClonePandastoSaveThemfromExtinction
Justovertwoyearsago,Chinaannounceditwasgoingtoclonethegiantpanda,thecountry'snationalsymbol.Pandasareextremelyendangered;thereareonly1,000leftinthewildandahundredincaptivity.Themovetobegincloningtheanimalwaspromptedbyunsuccessfulattemptstoincreaseitspopulationbyusingartificialinsemination.
Pandasarewidelyknownfortheirfeebleeffortswhenitcomestomating.Eveninthewilewheretheirsexualdrivemaybehigher,thesurvivalrateofthecubsisverylow:
morethanhalfofthemdieshortlyafterbirth.Unusually,thissummersixpandacubswerebornintheWolongGiantPandaReserveinthesouthwestprovinceofSichuan,inChina.However,zoologistswerereluctanttojoininthecelebrations:
itiswidelyheldthatthepandawillbecomeextinctwithin10years.
In1999,Dr.ChenDayuan,fromChina'sAcademyofSciences,beganaresearchprogramaimedatcloningapanda.Hetookthenucleusfromthecellofanadultpandaandinserteditintoaneggfromarabbitwhichhadhaditsnucleusremoved,toproduceaballofcellsthatcouldbecomeapandaembryo.Sofarthisstephasprovensuccessful.Thedifficultywillbegrowingapandaoutofacollectionofcells.Dayuaniscurrentlylookingforsuitablesurrogatemothersandisconsideringblackandslothbearsascandidates.Hehopestohaveapandaclonedwithinthenextfiveyears.
NoteveryoneinChinaisinfavoroftryingtoclonethepanda.Oneofthecountry'sleadingpandaexperts,Dr.PanWenshi,hasstudiedtheminthewildfortwodecades.Hebelievesthatattemptstoclonethisrareanimalwilldetractfromeffortstopreservethespeciesinthewild.Hehasalsodismissedthewidelyacceptedtheorythatthepanda'sthreatenedextinctionisduetoitsdeclineinfertility.Hearguesthatthemainreasonthepandaisanendangeredspeciesisthathumanshavedestroyedalargepartoftheirhabitat.
PassageIIIIndoorAirPollution
Airpollutionisaseriousprobleminmanycountries.Cars,airplanes,factoriesandwastecentersarecommonlyblamedforpollutingtheair.Theyreleasealargeamountoftinyblackparticlesintotheair.Suchpollutionisagreatthreattopeople.Scientificstudiesshowthatairinhomesandotherbuildingscanbeseriouslypolluted.Itmaybemorepollutedthantheoutside,eveninthemostindustrializedcities.UnitedStatesEnvironmentalProtectionAgencypublishecaguidetoindoorairquality.Theguidesaysthatmostpeoplespendabout90percentoftheirtimeindoors.So,formanypeople,indoorairpollutionmaybeagreaterhealthriskthanoutdoorpollution.Manynewhomesandofficebuildingscontainanumberofpollutants.Somereleasegasesorparticlesintotheair.Theyincludedifferentkindsoffuel,wood,buildingmaterials,officeequipment,furniture,floorcoveringsandchemicalcleaningproducts.Bacteriafoundinplantspetsandcentralheatingorcoolingsystemsalsoaffectairquality.Reducingtheamountofwaterintheairisonewaytopreventthegrowthofbacteriaandmoldindoors.Chemicalproductsalsoshouldbelimited.ExpertsadvisenottouseproductswithstrongchemicalsmellsinclosedplacesBuysmallamountsofthechemicalsandusethemimmediately.Thiswillpreventtheneedtostoresuchproducts.Healthproblemsfromindoorairpollutionmaybefeltsoonafterenteringabuilding.Immediateeffectsincludeaburningfeelingintheeyes,noseandthroat.Peoplemaydevelopheadaches,losetheirbalanceorfeelextremelytired.Sucheffectsgenerallylastforashorttime.Otherhealthproblemsmaydevelopoveralongerperiodoftime.Theseincludelungdisease,heartdiseaseandcancer.Expertssaythebestwaytoimproveindoorairqualityistoremovematerialsthatcausetheairpollution.Anotherwayistoincreasetheamountofoutsideairthatentersthebuilding.Andathirdwayistousedevicesthatcleantheair.
PartDExtensiveListening
1.professional2.shy3.inpublic4.oldsaying5.group6.middle7.successful8.overcome.9.reminding10.ataparty11.unlimited12.weather13.safesubject14.thatway15.schooldays16.verywarm17Obviously18.home19.apicture20.onthewall
Unit14
1.M:
Myheadachesareterrible.MaybeIneedmoresleep.
W:
Actually,youneedlesssunandsomeaspirin.Itwouldhelpifyouworeahat.
Q:
Whatdoesthewomanthinkisthecauseoftheman’sheadaches?
2.M:
Mrs.Winter,Ineedyouradvice.Iwanttobuyadressformywife.CanyoutellmewhereIcangetoneatareasonalbeprice?
W:
Sure.GotoRichard’s.ithasthelateststylesandgivesa30%discounttohusbandswhoshopalone.
Q:
WhatdoweknowabouttheRichard’sstore?
3.M:
Theheadacheiskillingme.Iwashopingitwouldjustgoaway,butis’sgettingworsebytheminutes.Whatdidyousaythenameofyourdoctorwas?
W:
Itoldyoulastweektomakethatappointment.
Q:
Whatinformationdoesthewomanwant?
4.M:
Ihaveacomplainttomake,Sir.IwaitedtenminutesatthetablebeforethewaitershowedupandwhenIfinallygotservedIfounditwasnotwhatIordered.
W:
I’mterriblysorry,Madam.It’sbeenunusallybusytonight.Asacompensation,yourmealwillbefree.
Q:
Wheredoest