電大《英語閱讀(三)》形考任務(wù)四

閱讀文章后完成5小題

1.1Thetouristtradeisbooming.Withallthiscomingandgoing,you'dexpectgreater

understandingtodevelopbetweenthenationsoftheworld.Notabitofit!Superbsystemsof

communicationbyair,seaandlandmakeitpossibleforLStovisiteachother'scountriesata

moderatecost.Whatwasoncethe'grandtour',reservedforonlytheveryrich,isnowwithin

everybody'sgraspThepackagetourandcharteredflightsarenottobesneeredat.Modern

travelersenjoyalevelofcomfortwhichthelordsandladiesongrandtoursintheolddays

couldn'thavedreamedof.Butwhat'sthesenseofthismassexchangeofpopulationsifthe

nationsoftheworldremainbasicallyignorantofeachother

2Manytouristorganizationsaredirectlyresponsibleforthisstateofaffairs.Theydeliberately

setouttoprotecttheirclientsfromtoomuchcontactwiththelocalpopulation.Themodern

touristleadsacosseted,shelteredlife.Helivesatinternationalhotels,whereheeatshis

internationalfoodandsipshisinternationaldrinkwhilehegazesatthenativesfromadistance.

Conductedtourstoplacesofinterestarecarefullycensored.Thetouristisallowedtoseeonly

whattheorganizerswanthimtoseeandnomore.Astrictschedulemakesitimpossibleforthe

touristtowanderoffonhisown;andanyway,languageisalwaysabarrier,soheisonlytoo

happytobeprotectedinthisway.Atitsveryworst,thisleadstoanewandhideouskindof

colonization.Thesummerquartersoftheinhabitantsoftheciteuniversitaire---are

temporarilyreestablishedontheislandofCorfu.BlackpoclisrecreatedatTorremolinoswhere

thetravelergoesnottoeatpaella,butfishandchips.

3Thesadthingaboutthissituationisthatitleadstothepersistenceofnationalstereotypes.We

don'tseethepeopleofothernationsastheyreallyare,butaswehavebeenbroughtupto

believetheyare.Youcantestthisforyourself.Takefivenationalities,say,French,German,

English,AmericanandItalian.Nowinyourmind,matchthemwiththesefiveadjectives:mcsical,

amorous,cold,pedantic,native.Farfromprovidinguswithanyinsightintothenational

characteristicsofthepeoplesjustmentioned,theseadjectivesactuallyactasbarriers.Sowhen

yousetoutonyourtravels,theonlycharacteristicsyounoticearethosewhichconfirmyour

preconceptions.Youcomeawaywiththehighlyunoriginalandinaccurateimpressionthat,say,

'Anglo-Saxonsarehypocrites'ofthat'Latinpeoplesshoutalot'.Youonlyhavetomakeafew

foreignfriendstounderstandhowabsurdandharmfulnationalstereotypesare.Buthowcanyou

makeforeignfriendswhenthetouristtradedoesitsbesttopreventyou

4Carriedtoanextreme,stereotypescanbepositivelydangerous.Wildgeneralizationsstirup

racialhatredandblindustothebasicfact——howtriteitsounds!-Thatallpeoplearehuman.

Weareallsimilartoeachotherandatthesametimeallunique.

Thebesttitleforthispassageis

A.tourismreallydoessomethingtoone'scountry.

B.Conductedtourisdull.

C.Tourismistiresome.

D.tourismcontributesnothingtoincreasingunderstandingbetweennations.

【答案】：D

2.1Thetouristtradeisbooming.Withallthiscomingandgoing,you'dexpectgreater

understandingtodevelopbetweenthenationsoftheworld.Notabitofit!Superbsystemsof

communicationbyair,seaandlandmakeitpossibleforistovisiteachother'scountriesata

moderatecost.Whatwasoncethe'grandtour',reservedforonlytheveryrich,isnowv/ithin

everybody'sgraspThepackagetourandcharteredflightsarenottobesneeredat.Modern

travelersenjoyalevelofcomfortwhichthelordsandladiesongrandtoursintheolddays

couldn'thavedreamedof.Butwhat'sthesenseofthismassexchangeofpopulationsifthe

nationsoftheworldremainbasicallyignorantofeachother

2Manytouristorganizationsaredirectlyresponsibleforthisstateofaffairs.Theydeliberately

setouttoprotecttheirclientsfromtoomuchcontactwiththelocalpopulation.Themodern

touristleadsacosseted,shelteredlife.Helivesatinternationalhotels,whereheeatshis

internationalfoodandsipshisinternationaldrinkwhilehegazesatthenativesfromadistance.

Conductedtourstoplacesofinterestarecarefullycensored.Thetouristisallowedtoseeonly

whattheorganizerswanthimtoseeandnomore.Astrictschedulemakesitimpossiblefcrthe

touristtowanderoffonhisown;andanyway,languageisalwaysabarrier,soheisonlytoo

happytobeprotectedinthisway.Atitsveryworst,thisleadstoanewandhideouskindof

colonization.Thesummerquartersoftheinhabitantsoftheciteuniversitaire—are

temporarilyreestablishedontheislandofCorfu.BlackpoolisrecreatedatTbrremolinoswhere

thetravelergoesnottoeatpaella,butfishandchips.

3Thesadthingaboutthissituationisthatitleadstothepersistenceofnationalstereotypes.We

don'tseethepeopleofothernationsastheyreallyare,butaswehavebeenbroughtupto

believetheyare.Youcantestthisforyourself.Takefivenationalities,say,French,German,

English,AmericanandItalian.Nowinyourmind,matchthemwiththesefiveadjectives:musical,

amorous,cold,pedantic,native.Farfromprovidinguswithanyinsightintothenational

characteristicsofthepeoplesjustmentioned,theseadjectivesactuallyactasbarriers.Sowhen

yousetoutonyourtravels,theonlycharacteristicsyounoticearethosewhichconfirmyour

preconceptions.Youcomeawaywiththehighlyunoriginalandinaccurateimpressionthat,say,

'Anglo-Saxonsarehypocrites'ofthat'Latinpeoplesshoutalot'.Youonlyhavetomakeafew

foreignfriendstounderstandhowabsurdandharmfulnationalstereotypesare.Buthowcanyou

makeforeignfriendswhenthetouristtradedoesitsbesttopreventyou

4Carriedtoanextreme,stereotypescanbepositivelydangerous.Wildgeneralizationsstirup

racialhatredandblindustothebasicfact—howtriteitsounds!-Thatallpeoplearehuman.

Weareallsimilartoeachotherandatthesametimeallunique.

.Whatistheauthor'sattitudetowardtourism

A.critical.

B.appreciative.

C.negative.

□.apprehensive.

【答案】：A

3.1Thetouristtradeisbooming.Withallthiscomingandgoing,you'dexpectgreater

understandingtodevelopbetweenthenationsoftheworld.Notabitofit!Superbsystemsof

communicationbyair,seaandlandmakeitpossibleforistovisiteachother'scountriesata

moderatecost.Whatwasoncethe'grandtour',reservedforonlytheveryrich,isnowwithin

everybody'sgraspThepackagetourandcharteredflightsarenottobesneeredat.Modern

travelersenjoyalevelofcomfortwhichthelordsandladiesongrandtoursintheolddays

couldn'thavedreamedof.Butwhat'sthesenseofthismassexchangeofpopulationsifthe

nationsoftheworldremainbasicallyignorantofeachother

2Manytouristorganizationsaredirectlyresponsibleforthisstateofaffairs.Theydeliberately

setouttoprotecttheirclientsfromtoomuchcontactwiththelocalpopulation.Themodern

touristleadsacosseted,shelteredlife.Helivesatinternationalhotels,whereheeatshis

internationalfoodandsipshisinternationaldrinkwhilehegazesatthenativesfromadistance.

Conductedtourstoplacesofinterestarecarefullycensored.Thetouristisallowedtoseeonly

whattheorganizerswanthimtoseeandnomore.Astrictschedulemakesitimpossibleforthe

touristtowanderoffonhisown;andanyway,languageisalwaysabarrier,soheisonlytoo

happytobeprotectedinthisway.Atitsveryworst,thisleadstoanewandhideouskindof

colonization.Thesummerquartersoftheinhabitantsoftheciteuniversitaire—are

temporarilyreestablishedontheislandofCorfu.BlackpoolisrecreatedatTorremolinoswhere

thetravelergoesnottoeatpaella,butfishandchips.

3Thesadthingaboutthissituationisthatitleadstothepersistenceofnationalstereotypes.We

don'tseethepeopleofothernationsastheyreallyare,butaswehavebeenbroughtupto

believetheyare.Youcantestthisforyourself.Takefivenationalities,say,French,German,

English,AmericanandItalian.Nowinyourmind,matchthemwiththesefiveadjectives:mtsical,

amorous,cold,pedantic,native.Farfromprovidinguswithanyinsightintothenational

characteristicsofthepeoplesjustmentioned,theseadjectivesactuallyactasbarriers.Sowhen

yousetoutonyourtravels,theonlycharacteristicsyounoticearethosewhichconfirmyour

preconceptions.Youcomeawaywiththehighlyunoriginalandinaccurateimpressionthat,say,

'Anglo-Saxonsarehypocrites'ofthat'Latinpeoplesshoutalot'.Youonlyhavetomakeafew

foreignfriendstounderstandhowabsurdandharmfulnationalstereotypesare.Buthowcanyou

makeforeignfriendswhenthetouristtradedoesitsbesttopreventyou

4Carriedtoanextreme,stereotypescanbepositivelydangerous.Wildgeneralizationsstirup

racialhatredandblindustothebasicfact—howtriteitsounds!-Thatallpeoplearehuman.

Weareallsimilartoeachotherandatthesametimeallunique.

WhichwordinthefollowingisthebesttosummarizeLatinpeopleshoutalot

A.silent.

B.active.

C.noisy.

D.lively.

【答案】：C

4.1Thetouristtradeisbooming.Withallthiscomingandgoing,you'dexpectgreater

understandingtodevelopbetweenthenationsoftheworld.Notabitofit!Superbsystemsof

communicationbyair,seaandlandmakeitpossibleforLStovisiteachother'scountriesata

moderatecost.Whatwasoncethe'grandtour',reservedforonlytheveryrich,isnowwithin

everybody'sgraspThepackagetourandcharteredflightsarenottobesneeredat.Modern

travelersenjoyalevelofcomfortwhichthelordsandladiesongrandtoursintheolddays

couldn'thavedreamedof.Butwhat'sthesenseofthismassexchangeofpopulationsifthe

nationsoftheworldremainbasicallyignorantofeachother

2Manytouristorganizationsaredirectlyresponsibleforthisstateofaffairs.Theydeliberately

setouttoprotecttheirclientsfromtoomuchcontactwiththelocalpopulation.Themodern

touristleadsacosseted,shelteredlife.Helivesatinternationalhotels,whereheeatshis

internationalfoodandsipshisinternationaldrinkwhilehegazesatthenativesfromadistance.

Conductedtourstoplacesofinterestarecarefullycensored.Thetouristisallowedtoseeonly

whattheorganizerswantHmtoseeandnomore.Astrictschedulemakesitimpossiblefcrthe

touristtowanderoffonhisown;andanyway,languageisalwaysabarrier,soheisonlytoo

happytobeprotectedinthisway.Atitsveryworst,thisleadstoanewandhideouskindof

colonization.Thesummerquartersoftheinhabitantsoftheciteuniversitaire---are

temporarilyreestablishedontheislandofCorfu.BlackpoolisrecreatedatTorremolinoswhere

thetravelergoesnottoeatpaella,butfishandchips.

3Thesadthingaboutthissituationisthatitleadstothepersistenceofnationalstereotypes.We

don'tseethepeopleofothernationsastheyreallyare,butaswehavebeenbroughtupto

believetheyare.Youcantestthisforyourself.Takefivenationalities,say,French,German,

English,AmericanandItalian.Nowinyourmind,matchthemwiththesefiveadjectives:misical,

amorous,cold,pedantic,native.Farfromprovidinguswithanyinsightintothenational

characteristicsofthepeoplesjustmentioned,theseadjectivesactuallyactasbarriers.Sowhen

yousetoutonyourtravels,theonlycharacteristicsyounoticearethosewhichconfirmyour

preconceptions.Youcomeawaywiththehighlyunoriginalandinaccurateimpressionthat,say,

'Anglo-Saxonsarehypocrites'ofthat'Latinpeoplesshoutalot'.Youonlyhavetomakeafew

foreignfriendstounderstandhowabsurdandharmfulnationalstereotypesare.Buthowcanyou

makeforeignfriendswhenthetouristtradedoesitsbesttopreventyou

4Carriedtoanextreme,stereotypescanbepositivelydangerous.Wildgeneralizationsstirup

racialhatredandblindustothebasicfact——howtriteitsounds!-Thatallpeoplearehuman.

Weareallsimilartoeachotherandatthesametimeallunique.

Thepurposeoftheauthor'scriticismistopointout

A.thewayoftouringshouldbechanged.

B.conductedtourisdisappointing.

C.nationalstereotypesshouldbechanged.

D.whentraveling,younoticecharacteristicswhichconfirmpreconception.

【答案】：A

5.1Thetouristtradeisbooming.Withallthiscomingandgoing,you'dexpectgreater

understandingtodevelopbetweenthenationsoftheworld.Notabitofit!Superbsystemsof

communicationbyair,seaandlandmakeitpossibleforLStovisiteachother'scountriesata

moderatecost.Whatwasoncethe'grandtour',reservedforonlytheveryrich,isnowwithin

everybody'sgraspThepackagetourandcharteredflightsarenottobesneeredat.Modern

travelersenjoyalevelofcomfortwhichthelordsandladiesongrandtoursintheolddays

couldn'thavedreamedof.Butwhat'sthesenseofthismassexchangeofpopulationsifthe

nationsoftheworldremainbasicallyignorantofeachother

2Manytouristorganizationsaredirectlyresponsibleforthisstateofaffairs.Theydeliberately

setouttoprotecttheirclientsfromtoomuchcontactwiththelocalpopulation.Themodern

touristleadsacosseted,shelteredlife.Helivesatinternationalhotels,whereheeatshis

internationalfoodandsipshisinternationaldrinkwhilehegazesatthenativesfromadistance.

Conductedtourstoplacesofinterestarecarefullycensored.Thetouristisallowedtoseeonly

whattheorganizerswanthimtoseeandnomore.Astrictschedulemakesitimpossibleforthe

touristtowanderoffonhisown;andanyway,languageisalwaysabarrier,soheisonlytoo

happytobeprotectedinthisway.Atitsveryworst,thisleadstoanewandhideouskindof

colonization.Thesummerquartersoftheinhabitantsoftheciteuniversitaire---are

temporarilyreestablishedontheislandofCorfu.BlackpoclisrecreatedatTorremolinoswhere

thetravelergoesnottoeatpaella,butfishandchips.

3Thesadthingaboutthissituationisthatitleadstothepersistenceofnationalstereotypes.We

don'tseethepeopleofothernationsastheyreallyare,butaswehavebeenbroughtupto

believetheyare.Youcantestthisforyourself.Takefivenationalities,say,French,German,

English,AmericanandItalian.Nowinyourmind,matchthemwiththesefiveadjectives:mcsical,

amorous,cold,pedantic,native.Farfromprovidinguswithanyinsightintothenational

characteristicsofthepeoplesjustmentioned,theseadjectivesactuallyactasbarriers.Sowhen

yousetoutonyourtravels,theonlycharacteristicsyounoticearethosewhichconfirmyour

preconceptions.Youcomeawaywiththehighlyunoriginalandinaccurateimpressionthat,say,

'Anglo-Saxonsarehypocrites'ofthat'Latinpeoplesshoutalot'.Youonlyhavetomakeafew

foreignfriendstounderstandhowabsurdandharmfulnationalstereotypesare.Buthowcanyou

makeforeignfriendswhenthetouristtradedoesitsbesttopreventyou

4Carriedtoanextreme,stereotypescanbepositivelydangerous.Wildgeneralizationsstirup

racialhatredandblindustothebasicfact——howtriteitsounds!-Thatallpeoplearehuman.

Weareallsimilartoeachotherandatthesametimeallunique.

Whatis,grandtour,now

A.localsight-seeingisinvestigatedbythetouristorganization.

B.peopleenjoythefirst-ratecomforts.

C.everybodycanenjoythe1grandtour,.

□.moderatecost.

【答案】：C

閱讀文章后完成5小題

6.1Antarcticahasactuallybecomeakindofspacestationauniqueobservationpostfor

detectingimportantchangesintheworld'senvironment.Remotefrommajorsourcesofpollution

andthecomplexgeologicalandecologicalsystemsthatprevailelsewhere,Antarcticamakes

possiblescientificmeasurementsthatareoftensharperandeasiertointerpretthanthosemade

inotherpartsoftheworld.

2GrowingnumbersofscientiststhereforeseeAntarcticaasadistant-early-warningsensor,

wherepotentiallydangerousglobaltrendsmaybespottedbeforetheyshowuptothenorth.One

promisingfieldofinvestigationisglaciology.ScholarsfromtheUnitedStates,Switzerland,and

Francearepursuingsevenseparatebutrelatedprojectsthatreflecttheirconcernforthehealth

oftheWestAntarcticIceSheet,aconcerntheybelievetheworldatlargeshouldshare.

3TheTransantarcticMountain,someofthemmorethan14,000feethigh,dividethecontinent

intotwoverydifferentregions.Thepartofthecontinenttothe"east"ofthemountainsischigh

plateaucoveredbyanicesheetnearlytwomilesthick."West"ofthemountain,thehalfofthe

continentsouthoftheAmericasisalsocoveredbyanicesheet,buttheretheicerestsonrock

thatismostlywellbelowsealevel.IftheWestAntarcticIceSheetdisappeared,thewesternpart

ofthecontinentwouldbereducedtoasparseclusterofisland.

4Whileiceandsnowareobviouslycentraltomanyenvironmentalexperiments,othersfocuson

themysterious"dryvalley"ofAntarctica,valleysthatcontainlittleiceorsnoweveninthedepths

ofwinter.SlashedthroughthemountainsofsouthernVictoriaLand,thesevalleysonceheld

enormousglaciersthatdescended9,000feetfromthepolarplateautotheRossSea.Nowthe

glaciersaregone,perhapsacasualtyoftheglobalwarmingtrendduringthe10,000yearssince

theiceage.Eventhesnowthatfallsinthedryvalleysisblastedoutbyviciouswindsthatroars

downfromthepolarplateautothesea.Leftbarearespectaculargorges,rippledfieldsofsand

dunes,clustersofboulderssculpturedintofantasticshapesby100-mile-an-hourwinds,andan

auraofextraterrestrialdesolation.

5Despitetheunearthlyaspectofthedryvalleys,somescientistsbelievetheymaycarrya

messageofhopeoftheverdantpartsoftheearth.Somescientistsbelievethatinsomecasesthe

dryvalleysmaysoakuppollutantsfasterthanpollutantsenterthem.

Whatisthebesttitleforthispassage

A.Antarctica:aUniqueObservationPost.

B.AntarcticaandenvironmentalProblems.

C.Antarctica:aMysteriousPlace.

□.Antarctica:Earth'sEarly-Warningstation.

【答案】：B

7.1Antarcticahasactuallybecomeakindofspacestationauniqueobservationpostfor

detectingimportantchangesintheworld'senvironment.Remotefrommajorsourcesofpollution

andthecomplexgeologicalandecologicalsystemsthatprevailelsewhere,Antarcticamakes

possiblescientificmeasurementsthatareoftensharperandeasiertointerpretthanthosemade

inotherpartsoftheworld.

2GrowingnumbersofscientiststhereforeseeAntarcticaasadistant-early-warningsensor,

wherepotentiallydangerousglobaltrendsmaybespottedbeforetheyshowuptothenorth.One

promisingfieldofinvestigctionisglaciology.ScholarsfromtheUnitedStates,Switzerland,and

Francearepursuingsevenseparatebutrelatedprojectsthatreflecttheirconcernforthehealth

oftheWestAntarcticIceSheet,aconcerntheybelievetheworldatlargeshouldshare.

3TheTransantarcticMountain,someofthemmorethan14,000feethigh,dividethecontinent

intotwoverydifferentregions.Thepartofthecontinenttothe"east"ofthemountainsisahigh

plateaucoveredbyanicesheetnearlytwomilesthick."West"ofthemountain,thehalfofthe

continentsouthoftheAmericasisalsocoveredbyanicesheet,buttheretheicerestsonrock

thatismostlywellbelowsealevel.IftheWestAntarcticIceSheetdisappeared,thewesternpart

ofthecontinentwouldbereducedtoasparseclusterofisland.

4Whileiceandsnowareobviouslycentraltomanyenvironmentalexperiments,othersfocuson

themysterious"dryvalley"ofAntarctica,valleysthatcontainlittleiceorsnoweveninthedepths

ofwinter.SlashedthroughthemountainsofsouthernVictoriaLand,thesevalleysonceheld

enormousglaciersthatdescended9,000feetfromthepolarplateautotheRossSea.Nowthe

glaciersaregone,perhapsacasualtyoftheglobalwarmingtrendduringthe10,000yearssince

theiceage.Eventhesnowthatfallsinthedryvalleysisblastedoutbyviciouswindsthatroars

downfromthepolarplateautothesea.Leftbarearespectaculargorges,rippledfieldsofsand

dunes,clustersofboulderssculpturedintofantasticshapesby100-mile-an-hourwinds,andan

auraofextraterrestrialdesolation.

5Despitetheunearthlyaspectofthedryvalleys,somescientistsbelievetheymaycarrya

messageofhopeoftheverdantpartsoftheearth.Somescientistsbelievethatinsomecasesthe

dryvalleysmaysoakuppollutantsfasterthanpollutantsenterthem.

WhatwouldtheresultbeiftheWestAntarcticIceSheetdisappeared

A.ThewesternpartofthecontinentwouldbereducedtoaclusterofIslands.

B.Thewesternpartofthecontinentwouldbedisappeared.

C.ThewesternpartofthecontinentwouldbecomescatteredIslands.

D.Thewesternpartofthecontinentwouldbereduced.

【答案】：C

8.1Antarcticahasactuallybecomeakindofspacestationauniqueobservationpostfor

detectingimportantchangesintheworld'senvironment.Remotefrommajorsourcesofpollution

andthecomplexgeologicalandecologicalsystemsthatprevailelsewhere,Antarcticamakes

possiblescientificmeasurementsthatareoftensharperandeasiertointerpretthanthosemade

inotherpartsoftheworld.

2GrowingnumbersofscientiststhereforeseeAntarcticaasadistant-early-warningsensor,

wherepotentiallydangerousglobaltrendsmaybespottedbeforetheyshowuptothenorth.One

promisingfieldofinvestigationisglaciology.ScholarsfromtheUnitedStates,Switzerland,and

Francearepursuingsevenseparatebutrelatedprojectsthatreflecttheirconcernforthehealth

oftheWestAntarcticIceSheet,aconcerntheybelievetheworldatlargeshouldshare.

3TheTransantarcticMountain,someofthemmorethan14,000feethigh,dividethecontinent

intotwoverydifferentregions.Thepartofthecontinenttothe"east"ofthemountainsisahigh

plateaucoveredbyanicesheetnearlytwomilesthick."West"ofthemountain,thehalfofthe

continentsouthoftheAmericasisalsocoveredbyanicesheet,buttheretheicerestsonrock

thatismostlywellbelowsealevel.IftheWestAntarcticIceSheetdisappeared,thewesternpart

ofthecontinentwouldbereducedtoasparseclusterofisland.

4Whileiceandsnowareobviouslycentraltomanyenvironmentalexperiments,othersfocuson

themysterious"dryvalley"ofAntarctica,valleysthatcontainlittleiceorsnoweveninthedepths

ofwinter.SlashedthroughthemountainsofsouthernVictoriaLand,thesevalleysonceheld

enormousglaciersthatdescended9,000feetfromthepolarplateautotheRossSea.Nowthe

glaciersaregone,perhapsacasualtyoftheglobalwarmingtrendduringthe10,000yearssince

theiceage.Eventhesnowthatfallsinthedryvalleysisblastedoutbyviciouswindsthatroars

downfromthepolarplateautothesea.Leftbarearespectaculargorges,rippledfieldsofsand

dunes,clustersofboulderssculpturedintofantasticshapesby100-mile-an-hourwinds,andan

auraofextraterrestrialdesolation.

5Despitetheunearthlyaspectofthedryvalleys,somescientistsbelievetheymaycarrya

messageofhopeoftheverdantpartsoftheearth.Somescientistsbelievethatinsomecasesthe

dryvalleysmaysoakuppollutantsfasterthanpollutantsenterthem.

WhyaretheDryValleysleftbare

A.Sanddunes.

B.Becauseoftheglobalwarmingtrendandfiercewind.

C.Viciouswindblaststhesnowaway.

D.ltrarelysnows.

【答案】：B

9.1Antarcticahasactuallybecomeakindofspacestationauniqueobservationpostfor

detectingimportantchangesintheworld'senvironment.Remotefrommajorsourcesofpollution

andthecomplexgeologicalandecologicalsystemsthatprevailelsewhere,Antarcticamakes

possiblescientificmeasurementsthatareoftensharperandeasiertointerpretthanthosemade

inotherpartsoftheworld.

2GrowingnumbersofscientiststhereforeseeAntarcticaasadistant-early-warningsensor,

wherepotentiallydangerousglobaltrendsmaybespottedbeforetheyshowuptothenorth.One

promisingfieldofinvestigctionisglaciology.ScholarsfromtheUnitedStates,Switzerland,and

Francearepursuingsevenseparatebutrelatedprojectsthatreflecttheirconcernforthehealth

oftheWestAntarcticIceSheet,aconcerntheybelievetheworldatlargeshouldshare.

3TheTransantarcticMountain,someofthemmorethan14,000feethigh,dividethecontinent

intotwoverydifferentregions.Thepartofthecontinenttothe"east"ofthemountainsisahigh

plateaucoveredbyanicesheetnearlytwomilesthick."West"ofthemountain,thehalfofthe

continentsouthoftheAmericasisalsocoveredbyanicesheet,buttheretheicerestsonrock

thatismostlywellbelowsealevel.IftheWestAntarcticIceSheetdisappeared,thewesternpart

ofthecontinentwouldbereducedtoasparseclusterofisland.

4Whileiceandsnowareobviouslycentraltomanyenvironmentalexperiments,othersfocuson

themysterious"dryvalley"ofAntarctica,valleysthatcontainlittleiceorsnoweveninthedepths

ofwinter.SlashedthroughthemountainsofsouthernVictoriaLand,thesevalleysonceheld

enormousglaciersthatdescended9,000feetfromthepolarplateautotheRossSea.Nowthe

glaciersaregone,perhapsacasualtyoftheglobalwarmingtrendduringthe10,000yearssince

theiceage.Eventhesnowthatfallsinthedryvalleysisblastedoutbyviciouswindsthatroars

downfromthepolarplateautothesea.Leftbarearespectaculargorges,rippledfieldsofsand

dunes,clustersofboulderssculpturedintofantasticshapesby100-mile-an-hourwinds,andan

auraofextraterrestrialdesolation.

5Despitetheunearthlyaspectofthedryvalleys,somescientistsbelievetheymaycarrya

messageofhopeoftheverdantpartsoftheearth.Somescientistsbelievethatinsomecasesthe

dryvalleysmaysoakuppollutantsfasterthanpollutantsenterthem.

Whichofthefollowingistrue

A.The"DryValleys"havenothingleftinside.

B.The"DryValleys"maycarryamessageofhopefortheverdant.

C.The"DryValleys"areuselesstoscientists.

D.The"DryValleys"neverheldglaciers.

【答案】：B

10.1Antarcticahasactuallybecomeakindofspacestationauniqueobservationpostfor

detectingimportantchangesinthewor