現(xiàn)代大學(xué)英語聽力1Unit2原文及答案

Unit2Task1【答案】A.1)elephants2)chimpanzees3)giraffes4)penguins5)kangaroos6)zebras7)polarbearsB.1)andatail2)bigears【原文】1)TheyliveinAfricaandIndia.Theyhavefourlegsandatail.Theyareverybigandverystrong.Theyareintelligent,too.Theyhaveatrunkandsomeofthemhavetusks.Theysometimeslivefor70years.2)TheyliveinAfricaandAsia.Theyarebrown.Theyhavearmsandlegs,buttheydonatail.Theirarmsareverylongandtheyhavebigears.Theyaregoodclimbers.Theyareveryintelligent,too.tI'3)TheyliveinAfrica.Theyareverytall.Theyhavefourlegs,atailandaverylongneck.Theyeatleavesandtwigs.Theycanrunveryfast.Theyarebrownandwhite.4)Theyliveinverycoldcountries.Theyhavewings,buttheycanTheyeatfish.Theyareblueandwhiteorblackandwhite.swirtifliyeTheyaregood5)TheyliveinAustralia.Theyareredorgray.Theyhaveshortfrontlegs,longbacklegsandaverylongtail.Thebacklegsandthetailareverystrong.Theycanrunveryfast.Thefemalescarrytheiryounginapouch.6)TheyliveinAfrica.Theyhavefourlegsandatail.Theyhaveabeautifulcoatwithblackandwhiteorbrownandwhitestripes.Theyeatgrassandplants.7)Theyliveinverycoldcountries.Theyhavefourlegs.Theyareverybigandverystrong.Theyhaveawhitecoat.Theycanswim.Theyeatsealsandfish.Task2【答案】A.1)Thecheetah.2)170km/h.3)Morethan100km/h.4)Becausemostanimalsrunonfourlegs.5)Becausewehavemachines.B.1)F,2)F,3)T【原文】Thefastestanimalonlandisthecheetah.Itcanrunataspeedofabout100kilometresanhour.Thefastestbirdinthworldcanflyat170km/h,andthefastestfishcanswimatmorethan100km/h.Humanbeingsarenotveryfast.Thefastestmanintheworldcanonlyrunatabout40km/h.Manyanimalscanrunfasterthanthis.Butmostanimalsrunonfourlegs.Fourlegsarebetterthantwo,arentthey?Whydoweonlyhavetwo'legs?Scientistssaythatwearemoreintelligentthanotheranimalsbecausewestandontwolegs,sowecanuseourhandsforotherthings.Wecanpickthingsupwiththem.Wecanusetools.Humanbeingshaveusedtoolsformillionsofyears.Thatiswhyourbrainshavedeveloped.Thatiswhywehavebecomethemostintelligentanimalsintheworld.Inthepastfewyears,wehavemadeallkindsofmachines.Wehavemadecars,ships,aeroplanesandspacecraft.Inthesemachineswecantravelfasterthananyanimalbyland,bysea,orbyair.Wecanevengotothemoon.Nootheran—malhaseverdonethat!Task3【答案】A.1)Climate,lackoffoodandaliensfromouterspacemightberesponsiblefortheirextinction.2)No.B.B:mighthavegotten,killedthemoffA:mayhaverunoutoffoodB:couldhavebeendestroyedbyaliens【原文】A:Youknow,werestudyingdinosaursinscieneeclassLtsreallyinteresting.''B:Oh,yeah?Hey,haveyoulearnedwhythedinosaursdisappeared?A:Well,nooneknowsforsure.B:Ithoughtithadsomethingtodowiththeclimate.Thetemperaturemighthavegottencoolerandkilledthemoff.A:Yeah,thatsonetheory.Anotherideaisthattheymayhiaveutoffood.'B:Uh-huh.Andyouknow,theresevenatheorythattheycouldhavebeendestroyedbyaliensfromouterspace.'A:Thatsoundscrazytome!Task4【答案】1)Themayfly.Afewhours.2)Theyjustdotwothings:findingamateandproducingyoung.3)Wecouldjudgebyitsgrowthrings.4)Itwaskeptfor152years.【原文】Fortheshortestlife,thefirstprizemustgotothemayfly,whichtypicallylivesonlyamatterofafewhoursafteritemergesfromitsshell.Fewmayflieslivetoseethesunriseagain.Thesecreaturesdevotetheirwholelivestoasingledesperatemission:findingamateandproducingyoung.Theydontevenhavefunctionalmouthsandstomachs.They'simplyhavenotimetoeat.Infacttheyhavenotimeforanythingelse.Therecord-holderfortheIongestlifemaybetheArcticclam,oneofwhichlivedquietlyunderwaterfor220years.Howeveritdidnothaveanybirthcertificatetoprovethis.Onecouldonlyjudgebyitsgrowthrings.Ifyouinsistonbetterdocumentation,theoldestanimaleverwasprobablyatortoisethatdiedin1918.Ithadbeencapturedalreadyfull-grownin1766,nineyearsbeforetheAmericanRevolutionbegananditdied152yearslaterasWorldWarIcametoaclose.Task5【答案】A.Peoplehavedifferentopinionsonusinganimalsforresearch.B.1)fora.wastriedfirstonanimals.b.isdependentonc.usingunwantedanimals.2)againsta.sufferb.unnecessaryc.thesamerights3)putermodeling.【原文】Everyyearabout17millionanimalsareusedinLaboratoryexperiments.Butinmanycountriestoday,adifficultquestionisbeingasked:Dowehavetherighttouseanimalsinthisway?Peoplewhoareforusinganimalsinresearcharguethattheuseofanimalsinmedicalresearchhasmanypracticalbeefits.Animalresearchhasenabledresearcherstodeveloptreatmentsformanydiseases,suchasheartdiseaseanddepression.Itwouldnothavebeenpossibletodevelopvaccinesfordiseaseslikesmallpoxandpoliowithoutanimalresearch.Everydruganyonetakestodaywastriedfirstonanimals.Futuremedicalresearchisdependentontheuseofanimals.Whichismoreimportant:thelifeofaratorthatofathree-year-oldchild?Medicalresearchisalsoanexcellentwayofusingunwantedanimals.Lastyear,over12millionanimalshadtobekilledinanimalsheltersbecausenoonewantedthemaspets.Howeverthosewhoareagainstitpointoutthatthefactthathumansbenefitcannotbeusedtojustifyusinganimalsinresearchanymorethanitcanbeusedtojustifyexperimentingonotherhumans.Animalssufferalotduringtheseexperiments.Theyareforcedtoliveinsmallcages,andtheymaybeunabletomove.Muchoftheresearchthatiscarriedoutisunnecessaryanyway.Animalshavethesamerightsashumansdotobeabletomovefreelyandnottohavepainorfearforcedonthem.—Researchersmustfindotherwaysofdoingtheirresearch,usingcellcultureandcomputermodeling.Thereshouldbenoamalsinresearchlaboratoriesatall.Task6【答案】A.1)No.2)Becausezooofficialswanthimtoproducecubswithanotherfemaletiger,sotheydon'twanthimtobecometoointerestedinthisfamily.B.1)fourmonths2)13kilograms3)horsemeat,theirmothermilk.'4)theNationalZooWebsite'C.1)c,2)c,3)b【原文】VisitorstotheNationalZooinWashingtonD.C.canseethreenewyoungtigers.Therarebabiesmetthepublicforthefirsttimelatelastmonth.ChipONealtellsusaboutthem.'Themothertigersatnearbyonthegrassasherbabiesrolled,chasedandbiteachotherplayfully.ThenKorenchyalsojumpedintothegames.Hercubswerebornatthezoofourmonthsago.TheyarecalledMike,EricandChrisy.ThenewyoungtigersattheNationalZooeachweighabout13kilograms.Theirfurisdarkorangewithblackstripes.TheyeathorsemeatanddrinkmilkfromKorenchy.KorenchyandherbabiesareSumatrantigers.SumatrantigerscamefromtheIndonesianislandofSumatra.Theyarenowindangerofdisappearingfromtheearth.Fewerthan500ofthesetigersremainintheworld.Thatincludesabout60livinginzoosinNorthAmerica.KorenchycametotheNationalZoofromtheJakartaZooinIndonesia.ThegirlwaspartoftheSumatranTigerSpeciesSurvivalProgram.Korenchyhasgivenbirthtolivecubsthreetines.ThefatherofhernewcubsisRokan,aSumatrantigerwhoarrivedtwoyearsagofromanotherzoo.KorenchyandRokanhadtheirbabiesthenaturalwayinsteadofthescientificmethodoftenusedtoproduceyounganimalsinzoos.AwirefenceseparatesRokanfromhisbabies.ZooworkerswhocareforRokansayhereachesthroughthefencetowashthecubswithhistongue.TheysaythismeansherecognizesMike,EricandChrisyashiscubs.However,zooofficialsarehopingthatRokanwillproducemorecubswithanotherfemaleSumatrantigeratthezoo,sotheydonotwanthimtobecometoointerestedinthisfamily.TheNationalZoohopestokeeptheSumatrantigercubsforatleast18monthsbeforesendingthemtootherzoos.Thatisabouttheagewhenmosttigercubsinthewildleavetheirmothers.TheNationalZoohasplacedcamerasintheSumatrantigers'livingarea,sopeoplewithcomputerscanseethem.Todothis,useyourcomputertofindtheNationalZooWebsiteatwww./natzoo.'Task7【答案】A.1)Catshavebeenmorepopular,becausetherearemorepetcatsinAmericanhomes.2)About8,000years3)TheyprobablyarrivedintheUnitedStatesfromEurope.4)No.B.1)a)foodespeciallypreparedforcatsb)otherequipmentc)withimagesofcatsd)inspecialburialgrounds2)a)pleasureb)carec)beingaloned)independentC.1)F,2)F,3)T,4)F,5)F【原文】Anoldexpressionsays,Manbestfriendishisdog.Today,however,itseemsthatcatshavereplaceddogsasthe'”mostpopularpetsinAmericanhomes.Americanshavemorethan62millionpetdogs.Butevenmorecatsmorethan64millionliveinAmericanhomes.——Thesepetcatsmayhavelonghairorshorthair.Theyaredifferentcolorsandsizes.Somearecostlyanimalsthattakpartincompetitions.ManymorearecommonAmericanmixturesofseveralkindsofcats.Mosthousecatsliveagoodlife.Theyarenotexpectedtoworkfortheirfood.Instead,theyruletheirhomeslikefurrykingsandqueens.Theywaitfortheirownerstoservethem.Americansareincreasinglyseriousabouttheircats.TheseconcernshavemadethecareofcatsintobigbusinessEachyear,catownersbuytonsoffoodespeciallypreparedforcats.Theybuytoysandotherequipment.Theybuyjewelryandclothesforthemselveswithimagesofcatsonthem.Someownersevenburytheirdeadpetsinspecialburialgrunds.Humanshavelovedandrespectedcatsforcenturies.Scientistshaveevideneethatcatsandpeoplelivedtogetherlongas8000yearsago.Thesmallhousecatwasonceahighlyhonoredanimal.InancientEgypt,forexample,peoplewhkilledacatcouldbepunishedbydeath.EarlyinAmericanhistorycatswerenottreatedasgods,however.TheyprobablyarrivedintheUnitedStateswithsettlersandtradersfromEurope.Thesecatsworked.Theykilledratsandmice.Sometimes,Americansmistreatedtheircats.Duringtheearlydaysofthenation,religiousextremistsbelievedthatsomecatswereworkingforthedevil.Blackcatswereespeciallysuspectedofbeingevil.Later,Americanfamilieswhohadenoughfoodbegantakingcatsintotheirhomes.Peoplecaredforthecatsbecautheanimalsgavethempleasure.Thecatsthankedpeopleforfeedingthembymakingapurringsound.Thispleasantnoiseusuallymeansacatishappy.Animalexpertsofferseveralreasonswhycatshavebecomesopopularashousepets.Theysaycatsneedlesscarethandogs.Andcatsdonotseemtosufferasmuchasdogsfrombeingaloneiftheownersareaway.Still,millionsofotherpeopledonotlikecatsatall.Theysaydogsarebetterandmorelovingpets.Theysaycatsdonothavemuchfeeling.Theybelievecatsstaywithpeopleonlytobefed.Catownersdefendtheirpetsagainstsuchcriticism.Theysaycatsarejust