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【正文】 heroicageofAntarcticexploration”.Bytheirtremendousheroism,mensuchasShakleton,Scott,andAmundsencausedanewcontinenttoemergefromtheshadows,andyetthatheroicage,littlemorethanacenturyold,isalreadypassing.Modernscienceandinventionsarerevolutionizingtheendurance,futurejourneysintotheseicywasteswillprobablydependonmotorvehiclesequippedwithcaterpillartractionratherthanonthedogsthatearlierdiscoverersfoundsoinvaluableandhardlyparable.FewrealizethatthisAntarcticcontinentisalmostequalinsizetoSouthAmerica,andenormousfieldofworkawaitsgeographersandprospectors.Thecoastsofthiscontinentremaintobeaccuratelycharted,andthemapingofthewholeoftheinteriorpresentsaformidabletasktothecartographerswhoundertakethework.Oncetheirlaborsarepleted,itwillbepossibletoprospectthevastnaturalresourceswhichscientistsbelievewillfurnishoneofthelargesttreasurehoardsofmetalsandmineralstheworldhasyetknown,andalmostinexhaustiblesourcesofcopper,coal,uranium,andmanyotheroreswillbeeavailabletoman.SuchdiscoverieswillusherinaneraofpracticalexploitationoftheAntarcticwastes.Thepolardarknesswhichhidesthiscontinentforthesixwintermonthswillbedefeatedbyhugebatteriesoflight,andmakepossibletheestablishingofairfieldsforthefutureintercontinentalairservicesbymakingtheseareasaslightasday.Presentflyingrouteswillbepletelychanged,fortheAntarcticrefuelingbaseswillmakeflightsfromAustraliatoSouthAmericaparativelyeasyoverthe5,000milesjourney.Theclimateisnotlikelytoofferaninsuperableproblem,fortheexplorerAdmiralByrdhasshownthattheclimateispossibleevenformenpletelyuntrainedforexpeditionsintothosefrozenwastes.Someofhispartiesweremenwhohadneverseensnowbefore,andyetherecordsthattheysurvivedtherigorsoftheAntarcticclimatefortably,sothat,providedthattheappropriateinstallationsaremade,wemayassumethathumanbeingsfromallcountriescouldlivetheresafely.Byrdevenaffirmsthatitisprobablythemosthealthyclimateintheworld,fortheintensecoldofthousandsofyearshassterilizethiscontinent,andrendereditabsolutelygermfree,withtheconsequencesthatordinaryandextraordinarysicknessanddiseasesfromwhichmansuffersinotherzoneswithdifferentclimatesarehereutterlyunknown.Thereexistnoproblemsofconservationandpreservationoffoodsupplies,forthelatterkeepindefinitelywithoutanysignsofdeterioration。itmayevenbethatlatergenerationswilletoregardtheAntarcticasthenaturalstorehouseforthewholeworld.Plansarealreadyonfoottosetuppermanentbasesontheshoresofthiscontinent,andwhatsofewyearsagowasregardedasa“deadcontinent”nowpromisestobeamostactivecenterofhumanlifeandendeavor.1. WhendidmanbegintoexploretheAntarctic?A. About100yearsago.B. Inthiscentury.C. Atthebeginningofthe19thcentury.D. In1798.musttheexplorersbe,eventhoughtheyhavemodernequipmentandtechniques?A. BraveandtoughB. Stubbornandarrogant.C. Welllikedandhumorous.D. Stoutandsmart.3. Themosthealthyclimateintheworldis___.A. inSouthAmerica.B. intheArcticRegion.C. intheAntarcticContinent.D. intheAtlanticOcean.4. WhatkindofmetalsandmineralscanwefindintheAntarctic?A. Magnetite,coalandores.B. Copper,coalanduranium.C. Silver,naturalgasanduranium.D. Aluminum,copperandnaturalgas.5. Whatisplannedforthecontinent?A. Buildingdamsalongthecoasts.B. Settingupseveralsummerresortsalongthecoasts.C. Mappingthecoastandwholeterritory.D. Settinguppermanentbasesonthecoasts.第八篇(Unit2passage4)Atsometimeinyourlifeyoumayhaveastrongdesiretodosomethingstrangeorterrible.However,chancesarethatyoudon’tactonyourimpulse,butletitpassinstead.Youknowthattomittheactioniswronginsomewayandthatotherpeoplewillnotacceptyourbehavior.Perhapsthemostinterestingthingaboutthephenomenonoftaboobehaviorishowitcanchangeovertheyearswithinthesamesociety,howcertainbehaviorandattitudesonceconsideredtaboocanbeepe
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