大學英語六級改革適用（閱讀）模擬試

卷2（共9套）

（共220題）

大學英語六級改革適用（閱讀）模擬試

卷第1套

一、仔細閱讀（本題共25題，每題1.0分，共25分。）

ThediiculraysofthesunluuulillictqualurandstrikenuilliwaidluwaidtheTropicuf

Cancer.IntheSouthernhemispherewinterhasbegun,anditissummernorthofthe

equator.Theseaandairgrowwarmer;thepolarairofwinterbeginsitsgradualretreat.

Thenorthwardshiftofthesunalsobringstheseasonoftropicalcyclonestothenorthern

hemisphere,aseasonthatisendingforthePacificandIndiaOceanssouthoftheequator.

AlongourcoastsandthoseofAsia,itistunetolookseaward,toguardagainstthe

season'sstorms.OverthePacific,thetropicalcycloneseasonisneverquiteover,but

variesinintensity.Everyyear,conditionseastofthePhilippinessendascoreofviolent

stormshowlingtowardAsia,butitisworstfromJunethroughOctober.Southwestof

Mexico,afewPacifichurricaneswillgrowduringspringandsummer,butmostwilldie

atseaorperishoverthedesertorthelowerCaliforniacoastassqualls.Alongour

AtlanticandGulfcoasts,thehurricaneseasonisfromJunetoNovember.Inanaverage

year,therearefewerthantentropicalcyclonesandsixofthemwilldevelopinto

hurricanes.Thesewillkill50to100personsbetweenTexasandMaineandcause

propertydamageofmorethan$100million.Iftheyearisworsethanaverage,wcwill

sufferseveralhundreddeaths,andpropertydamagewillruntobillionsofdollars.

Tornadoes,floods,andseverestormsareinseasonelsewhereonthecontinent.Now,to

thesedestructiveforcesmustbeaddedthehazardofthehurricane.FromtheNational

HurricaneCenterinMiami,aradarfencereacheswestwardtoTexasandnorthwardto

NewEngland.Itprovidesa200-milelookintooffshoredisturbances.InMaryland,the

giantcomputersoftheNationalMeteorologicalCenterdigestthemyriadbitsofdata-

atmosphcricpressure,temperature,humidity,surfacewinds,andwindsaloft-rcccivcd

fromweatherstationsandshipsmonitoringtheatmosphericsettingeachhour,everyday.

CloudphotographsfromspacecraftorbitingtheeartharereceivedinMarylandandare

studiedforthetelltalespiralonthewarmingsea.ThecrewofUnitedStatesaircraftover

theGulfofMexico,Caribbean,andAtlanticwatchtheskyandwaitforthestormthat

willbearaperson'sname.Themachineryofearlywarningvibrateswithnewurgencyas

theseasonofgreatstormsbegins.

1、ThecycloneseasonoftheSouthernhemisphere.

A、isbroughtbythepolarairofwinter

B、endswhenwintercomestotheSouthernhemisphere

C、virtuallylaststhroughouttheyear

D、beginswhenthesunraysstriketheTropicofCancer

標準答案：B

知識點解析：從首段和第2段首句的描述可以知道，南北半球的氣候相反，當南半

球進入冬季、熱帶氣旋季節(jié)結束的時候，北半球卻是夏季、熱帶氣旋季節(jié)開始的時

候，辨清了這些事實，就不難判斷選項B為本題答案。

2、WhatistrueaboutthestormshowlingtowardsAsia?

A、TheyoriginateoverthePacific.

B、TheyinfluenceSoutheastAsiamostviolently.

C^TheymainlygrowduringspringandSummer.

D^Theyusuallyperishoffcoast.

標準答案：A

知識點解析：第2段第3-5句說的是太平洋沿芹熱帶氣旋的形成和影響，而且，如

果稍有地理知識的話，就知道菲律賓東部也在太平洋上，結合第3、4句的內容就

可以推斷選項A為正確的說法。選項B沒有原文依據(jù)：選項C和D都是第2段第

5句提到的內容，是關于墨西哥西南部的颶風的，與亞洲的暴風無關。

3、WhenthePacifichurricanesreachthelowerCalifornia,mostofthemwill.

A、reducetheirintensity

increasetheirintensity

C>causemuchpropertydamage

D、resultingreatrainandfloods

標準答案：A

知識點解析：從第2段末句中的die和perish可以知道，多數(shù)太平洋颶風的強度會

減弱并最終消逝，雖然句末的squalls一詞為超綱近，但這不影響對全句的理解，

而且，從die和perish也可推斷，squalls應該是強度不如hurricanes的暴風，由此

可見，選項A為正確的說法。

4、WhatcanwelearnabouttheNationalHunicaneCenterinMiami?

A、ItmainlyprovidesprotectionagainsthurricanestoTexasandNewEngland.

B、Itwarnsthewholecountryagainsttornadoes,severestormsandhurricanes.

C^IlconsistsofradarsalongthecoastOfthewestandthenorthofU.S.

D、ItsupervisesthecoastalareasstretchingfromTexastoNewEngland.

標準答案：D

知識點解析：從末段第3句可以知道國家颶風中心的監(jiān)測范圍，第4句指出國家颶

風中心主要監(jiān)測的是海面的情況，結合這兩句，即可知道選項D正確。選項A所

表示的范圍過小了，而選項B正好相反，范圍過大；選項C中的ihewesiancHhe

northofU.S.（美國的西部和北部）與原文的westwardtoTexasandnorthwardto

NewEngland所指的地點是不同的。

5、Thepassagediscussesmostclearlyabout.

A、thefactorsthatcausehurricanes

B、themostriskyareasthatsufferhurricanes

C、theearlywarningsystemagainsthurricanes

D、theremediesforpropertydamagebyhurricanes

標準答案：C'

知識點解析：末段提到了國家颶風中心和國家氣象中心，說明了美國為了預警颶風

所采取的措施，由此可見，選項C在文中是有清楚說明的。

Intheatmosphere,carbondioxideactsratherlikeaone-waymirror-theglassintheroof

ofagreenhousewhichallowsthesun'sraystoenterbutpreventstheheatfromescaping.

Accordingtoaweatherexpert'sprediction,theatmospherewillbe31warmerintheyear

2050thanitistoday,ifmancontinuestoburnfuelsatthepresentrate.Ifthiswarmingup

tookplace,theicecapsinthepoleswouldbegintomelt,thusraisingsealevelseveral

metersandseverelyfloodingcoastalcities.Also,theincreaseinatmospherictemperature

wouldlead（ogreatchangesintheclimateofthenorthernhemisphere,possiblyresulting

inanalterationoftheearth'schieffood-growingzones.Inthepast,concernaboutaman-

madewanningoftheearthhasconcentratedontheArcticbecausetheAntarcticismuch

colderandhasamuchthickericcsheet.Buttheweatherexpertsarcnowpayingmore

attentiontoWestAntarctic,whichmaybeaffectedbyonlyafewdegreesofwarming:in

otherwords,byawarmingonthescalethatwillpossiblytakeplaceinthenextfiftyyears

fromtheburningoffuels.SatellitepicturesshowthatlargeareasofAntarcticiceare

alreadydisappearing.Theevidenceavailablesuggeststhatawarminghastakenplace.

Thisfitsthetheorythatcarbondioxidewarmstheearth.However,mostofthefuelis

burntinthenorthernhemisphere,wheretemperaturesseemtobefalling.Scientists

conclude,therefore,thatuptonownaturalinfluencesontheweatherhaveexceededthose

causedbyman.Thequestionis:Whichnaturalcausehasmosteffectontheweather9

Onepossibilityisthevariablebehaviorofthesun.Astronomersatoneresearchstation

havestudiedthehotspotsand"cold"spots（thatis,therelativelylesshotspots）onthesun.

Asthesunrotates,every27.5days,itpresentshotteror"colder"facestotheearth,and

differentaspectstodifferentpartsoftheearth.Thisseemstohaveaconsiderableeffect

onthedistributionoftheearth'satmosphericpressure,andconsequentlyonwind

circulation.Thesunisalsovariableoveralongterm:itsheatoutputgoesupanddownin

cycles,thelatesttrendbeingdownward.Scientistsarenowfindingmutualrelations

betweenmodelsofsolar-weatherinteractionsandtheactualclimateovermanythousands

ofyears,includingthelastIceAge.Theproblemisthatthemodelsarepredictingthatthe

worldshouldbeenteringanewIceAgeanditisnot.Onewayofsolvingthistheoretical

difficultyistoassumeadelayofthousandsofyearswhilethesolareffectsovercomethe

inertia（慣性）oftheearth'sclimate.Ifthisisright,thewarmingeffectofcarbondioxide

mightthusbeservingasausefulcounter-balancetothesun'sdiminishingheat.

6、Itcanbeconcludedthataconcentrationofcarbondioxideintheatmospherewould

A^preventthesun'sraysfromreachingtheeartlfssurface

B、meanawarmingupintheArctic

C、causegreatclimatechangesinthenorthernhemisphere

D、raisethetemperatureoftheearth'ssurface

標準答案：D

知識點解析：從第1段對二氧化碳造成溫室效應的原理描述，即可判斷本題答案為

D項。根據(jù)第4段第3句”這種情況符合二氧化碳使地球變暖的理論”也可判斷D項

符合題意。此外，本題也可以根據(jù)有關溫室效應的常識求解。

7、Thearticlewaswrittentoexplain.

A^thegreenhouseeffect

B、thesolareffectsontheearth

C、themodelsofsolar-weatherinteractions

D^thecausesaffectingweather

標準答案：D

知識點解析：文章前半部分（前四段）講燃燒產(chǎn)生二氧化碳使地球產(chǎn)生溫室效應，后

半部分（后二段）講太陽對地球的影響使地球溫度降低。尤其值得注意的是第5段提

出的問題Whichnaturalcausehasmosteffectontheweather?使我們推斷出本文旨在

解釋影響氣候變化的原因。故D項為正確答案。

8、Whyisthefuelconsumptiongreaterinthenorthernhemisphere,buttemperatures

thereseemtobefalling?

A、Mainlybecausethelevelsofcarbondioxidearerising.

B、Possiblybecausetheicecapsinthepolesaremelting.

C、Becausetheinertiaoftheearth'sclimatetakeeffect.

D、Partlybecauseintheoutputofsolarenergyvaries.

標準答案：D

知識之解析：從第5段最后一句給出的設問可知，第6段的首句是考點之所在，

即：“一種可能性（自然因素）是變化無常的太陽活動?！庇纱丝梢耘袛?，D項的內容

符合題意。A項說的是人為的因素，即溫室效應。事實上，A項和D項是作為兩

個影響氣候的對立因素出現(xiàn)的，同時也是本文論及的兩個分話題，由此也可以直接

判斷D項為正確答案。

9、Onthebasisoftheirmodels,scientistsareoftheopinionthat.

A、theclimateoftheworldshouldbebecomingcooler

B、itwilltakethousandsofyearsfortheinertiaoftheearlh'sclimatetotakeeffect

C^theman-madewarmingeffecthelpstoincreasethesolareffects

D、thenewIceAgewillbedelayedbythegreenhouseeffect

標準答案：A

知識點解析：最后一段的第2句提到“科學家們研究的結果應該是地球進人新的冰

川時期，然而卻沒有出現(xiàn)這種情況”，這與A項的內容吻合。D項為本題的強干擾

項，根據(jù)文章，該項的含義正確。但就本題而言，題干針對的是models（模型），因

而判斷范圍只能針對solar-weatherinteractions,即太陽的作用。

10、IftheassumptionaboutthedelayofanewIceAgeiscorrect,.

A、thebestwaytoovercomethecoolingeffectwouldbetoburnmorefuels

B、icewouldsooncoverthenorthernhemisphere

C^theincreasedlevelsofcarbondioxidecouldwarmuptheearthquickly

D、thegreenhouseeffectcouldworktotheadvantageoftheearth

標準答案：D

知識點解析：文章最后一句中的ausefulcounter-balance是指有益的抵消作用，即

二氧化碳產(chǎn)生的熱效應可以抵消太陽熱量減少使地球變冷的傾向，這對地球的熱量

平衡是有利的。這與D項的內容相吻合。

"Theworld'senvironmentissurprisinglyhealthy.Discuss.1'Ifthatwereanexamination

topic,moststudentswouldtearitapart,offeringalonglistofcomplaints:fromlocal

smog（煙霧）toglobalclimatechange,fromthefelling（砍伐）offoreststotheextinctionof

species.Thelistwouldlargelybeaccurate,theconcernlegitimate.Yetthestudentswho

shouldbegiventhehighestmarkswouldactuallybethosewhoagreedwiththe

statement.Thesurpriseishowgoodthingsare,nothov/bad.Afterall,theworld's

populationhasmorethantripledduringthiscentury,andworldoutputhasrisenhugely,

soyouwouldexpecttheearthitselftohavebeenaffected.Indeed,ifpeoplelived,

consumedandproducedthingsinthesamewayastheydidin1900（or1950,orindeed

1980）,theworldbynowwouldbeaprettydisgustingplace:smelly,dirty,toxicand

dangerous.Buttheydon't.Thereasonswhytheydon't,andwhytheenvironmenthasnot

beenruined,havetodowithprices,technologicalinnovation,socialchangeand

governmentregulationinresponsetopopularpressure.Thatiswhytoday's

environmentalproblemsinthepoorcountriesought,inprinciple,lobesolvable.Raw

materialshavenotrunout,andshownosignofdoingso.Logically,onedaytheymust:

theplanetisafiniteplace.Yetitisalsoverybig,andmanisveryingenious.Whathas

happenedisthateverytimeamaterialseemstoberunningshort,thepricehasrisenand,

inresponse,peoplehavelookedfornewsourcesofsupply,triedtofindwaystouseless

ofthematerial,orlookedforanewsubstitute.Forthisreasonpricesforenergyandfor

mineralshavefalleninrealtermsduringthecentury.Thesameistrueforfood.Prices

fluctuate,inresponsetoharvests,naturaldisastersandpoliticalinstability;andwhenthey

rise,ittakessometimebeforenewsourcesofsupplybecomeavailable.Buttheyalways

do,assistedbynewfarmingandcroptechnology.Thelong-termtrendhasbeen

downwards.Itiswherepricesandmarketsdonotoperateproperlythatthisbcnign（良性

fi'J）trendbeginstostumble,andihegenuineproblemsarise.Marketscannotalwayskeep

theenvironmenthealthy.Ifnooneownstheresourceconcerned,noonehasaninterestin

conservingitorfosteringit:fishisthebestexampleofthis.

11、Accordingtotheauthor,moststudents.

A、believetheworld'senvironmentisinanundesirablecondition

B>agreethattheenvironmentoftheworldisnotasbadasitisthoughttobe

C>gethighmarksfbrtheirgoodknowledgeoftheworld'senvironment

D^appearsomewhatunconcernedaboutthestateoftheworld'senvironment

標準答案：A

知識點解析：根據(jù)文章第1段前兩句”如果以《全球環(huán)境狀況非常好》作為考試

題，大多數(shù)學生會將試卷撕碎，并列出一大堆的抱怨，從煙霧到全球氣候變暖，從

砍伐森林到物種滅絕”，由此可推斷，大多數(shù)學生認為全球環(huán)境并不令人滿意。因

此，A正確。

12、1'hchugeincreaseinworldproductionandpopulation.

A、hasmadetheworldaworseplacetolivein

hashadapositiveinfluenceontheenvironment

C>hasnotsignificantlyaffectedtheenvironment

D、hasmadetheworldadangerousplacetolivein

標準答案：C

知識點解析：根據(jù)文章第2段全段和第3段首句“本世紀，全球人口增加了三倍

多，全球產(chǎn)量也有巨大的增長，因此你可能會認為地球會受到影響。的確，如果人

們還像1900年或1950年甚至1980年那樣居住、消費和生產(chǎn),那么到現(xiàn)在，地球

很可能是一個令人厭惡的地方但人們沒有這樣做'、，注意此處的虛擬語氣，由此可

推斷產(chǎn)量和人口的增長并沒有對全球環(huán)境造成太大的影響，故此，應選C。

13、Oneofthereasonswhythelong-termtrendofpriceshasbeendownwardsis

that.

A、technologicalinnovationcanpromotesocialstability

politicalinstabilitywillcauseconsumptiontodrop

C、newfarmingandcroptechnologycanleadtooverproduction

D、newsourcesarealwaysbecomingavailable

標準答案：D

知識點解析：根據(jù)文章第4段第4、5句“每次當一種資源似乎就要匱乏時，價格就

會上升，相應地，人們會尋找新的資源，想方設法找到節(jié)省資源的方法或者尋找新

的替代品。正因為如此，本世紀能源和礦產(chǎn)品的價格實質上已經(jīng)下降了"，故應選

Do

14、Fishresourcesarediminishingbecause.

A^nonewsubstitutescanbefoundinlargequantities

B、theyarenotownedbyanyparticularentity

C、impropermethodsoffishinghaveruinedthefishinggrounds

D^waterpollutionisextremelyserious

標準答案：B

知識點解析：根據(jù)文章最后一段第2、3句“市場并不能總是保持環(huán)境的健康發(fā)展。

如果相關的資源不屬于任何人，人們就沒有興趣保護它、培養(yǎng)它。魚類資源就是一

個最好的例子”，因此，可推斷B正是魚類減少的原因。

15、Theprimarysolutiontoenvironmentalproblemsis.

A^toallowmarketforcestooperateproperly

B、tocurbconsumptionofnaturalresources

C、tolimitthegrowthoftheworldpopulation

D、toavoidfluctuationsinprices

標準答案：A

知識點解析：根據(jù)文章最后一段第1句“在價格和市場手段不能正常運轉的地方，

這種良性的趨勢就會動搖，就會出現(xiàn)環(huán)境能源等問題”，故此，讓市場價格手段正

常地發(fā)揮作用才是解決環(huán)境問題的方法，A與文章的意思相符，故而正確。

Scatteredaroundtheglobearcmorethan100smallregionsofisolatedvolcanicactivity

knowntogeologistsashotspots.Unlikemostoftheworld'svolcanoes,theyarcnot

alwaysfoundattheboundariesofthegreatdriftingplatesthatmakeuptheearth's

surface;onthecontrary,manyofthemliedeepintheinteriorofaplate.Mostofthehot

spotsmoveonlyslowly,andinsomecasesthemovementoftheplatespastthemhasleft

trailsofdeadvolcanoes.Thehotspotsandtheirvolcanictrailsaremilestonesthatmark

thepassageoftheplates.Thattheplatesaremovingisnowbeyonddispute.Africaand

SouthAmerica,forexample,aremovingawayfromeachotherasnewmaterialis

injectedintotheseafloorbetweenthem.Thecomplementarycoastlinesandcertain

geologicalfeaturesthatseemtospantheoceanarcremindersofwherethetwocontinents

wereoncejoined.Therelativemotionoftheplatescarryingthesecontinentshasbeen

constructedindetail,but:hemotionofoneplatewithrespecttoanothercannotreadilybe

translatedintomotionwithrespecttotheearth'sinterior.Itisnotpossibletodetermine

whetherbothcontinentsaremovinginoppositedirectionsorwhetheronecontinentis

stationaryandtheotherisdriftingawayfromit.Hotspots,anchoredinthedeeperlayers

oftheearth,providethemeasuringinstrumentsneededtoresolvethequestion.Froman

analysisofthehot-spotpopulationitappearsthattheAfricanplateisstationaryand(hat

ithasnotmovedduringthepast30millionyears.Thesignificanceofhotspotsisnot

confinedtotheirroleasaframeofreference.Itnowappearsthattheyalsohavean

importantinfluenceonthegeophysicnlprocessesthatpropeltheplatesncrossrheglahe.

Whenacontinentalplateconiestorestoverahotspot,thematerialrisingfromdeeper

layercreatesabroaddome.Asthedomegrows,itdevelopsdeepfissures(cracks);inat

leastafewcasesthecontinentmaybreakentirelyalongsomeofthesefissures,sothatthe

hotspotinitiatestheformationofanewocean.Thusjustasearliertheorieshave

explainedthemobilityofthecontinents,sohotspotsmayexplaintheir

mutability(inconstancy).

16、Wecanlearnfromthefirstparagraphthat.

A、therearenovolcanicactivitiesonhotspots

B、mosthotspotsarelocatedintheinnerpartofaplate

C^hotspotsusuallylieattheboundariesofdriftingplates

D、thepassageofplatesthroughhotspotswillleavedeadvolcanoes

標準答案：B

知識點解析：根據(jù)題干直接查找到第1段。第2句第2個分句提到“其中很多位于

板塊內部的深處“，而表達同樣含義的是B選項。該段第I句指出，這些互不相

連、發(fā)生火山運動的小地區(qū)，地質學家稱之為熱點，可見A項錯誤。選項C與第

2句第1個分句的內容相反。倒數(shù)第2句提到“在某些情形下，板塊移動經(jīng)過熱點

留下死火山的痕跡”，即不是所有板塊移動都會留下死火山的痕跡，故D錯。

17、Theauthorbelievesthat.

A、themotionoftheplatescorrespondstothatoftheearth'sinterior

B、thegeologicaltheoryaboutdriftingplateshasbeenprovedtobetrue

C、thehotspotsandtheplatesmoveslowlyinoppositedirections

D、themovementofhotspotsprovesthecontinentsaremovingapart

標準答案：B-

知識點解析：文章第2段的開頭指出Thattheplatesaremovingisnowbeyond

disputeobeyonddispute意為“毋庸置疑”，故答案選B項。從第2段第4句的“但是

一個板塊相對于另外一個板塊的運動不能被順理成章地解釋成板塊與它相對于地球

內部的運動”，可排除A項。

18、ThatAfricaandSou:hAmericawereoncejoinedcanbededucedfromthefact(hat

A、thetwocontinentsarestillmovinginoppositedirections

R、theyhavebeenfoundtosharecertaingeologicalfeatures;

C^theAfricanplatehasbeenstablefor30millionyears

D、over100hotspotsarescatteredallaroundtheglobe

標準答案：B

知識點解析：從第2段的第3句可知，非洲和南美洲曾經(jīng)連接在一起的證據(jù)有兩個

----海岸線所具有的互補的特征(complementarycoasllines)及某些地質特點(certain

geologicalfeatures)oB項符合后者，故為正確答案。

19、Thehotspottheorymayproveusefulinexplaining.

A、thestructureoftheAfricanplates

B、therevivalofdeadvolcanoes

C、themobilityofthecontinents

D、theformationofnewoceans

標準答案：D

知識點解析：關于hotspottheory的作用，除了第2段提到的參照作用外，第3段

論及的另一個重要作用在于它能夠推動板塊在地球表面漂移(propeltheplatesacross

theglobe),從而引發(fā)了新海洋的形成(initiatestheformationofanewocean).故答案

選D項。

20、Thepassageismainlyabout.

A^thefeaturesofvolcanicactivities

B、theimportanceofthetheoryaboutdriftingplates

C、thesignificanceofhotspotsingeophysicalstudies

D^theprocessoftheformationofvolcanoes

標準答案：c

知識點露析：全文3個段落主要是圍繞“熱點對于地球物理學研究的意義”而展開

的。故答案選C項。全篇共3段，第1段講的是hotspots的定義與分布，第2段

講hoispols在大陸板塊移動中的參照作用，第3段講hotspots引起新海洋形成的

地球物理意義。

Naturally,inagroupofanimalsasdiverseasthesnakes,andwithsomanyvaried

enemies,therearenumerousdefensivereactionsanddevices.Thereis,however,one

generalpatternofbehavior.Inthepresenceofsuspectedenemythefirstreactionistotry

toescapeobservation;ifthisfails,thenextresortistheflighttosomeinaccessibleretreat,

butifthisisnotpossible,oriscircumvented,variouskindsofintimidatorygesturesand

warningdevicesarebroughtintoplay;inthelastresortthesnakeattacks.Thispattern

varieswiththecircumstances;somestagesmaybeomittedorcombinedunpredictably

whilstallsomenotoriouslyirasciblespeciesmaydispensewithallthepreliminariesand

attackalmostatonce,thoughseldomorneverwithoutsomeprovocation.Amongstthe

factorsthatincreaseaggressivenessarehunger,thematingseasonandsurprise,withthe

lastmentionedthecommonest;whenhuntingforfoodorformate,activityandthe

aggressiveinstinctarcbo:hattheirpeak.Owingtotheirpoorsenseofhearingsnakesarc

veryliabletobe,quiteliterally,caughtnappingandasimilarsituationarisesduringtheir

periodsoftemporaryblindnessjustbeforesloughing(蛻皮)begins.Byfarthegreatest

numberofsnake-bitaccidentsresultfromtheunwittingdisturbanceofrestingsnakes,

andthishazardismuchincreasedwithspeciesthatarewelldisguisedandwhosenatural

instinctistotrusttothisconcealmentastheirprincipaldefense.Aswellasdifferencesin

aggressivenessbetweenindividualsofthesamespeciesaccordingtothecircumstances

andconditions,therearealsonotabledifferencesbetweenspecies,evencloselyallied

species;andthereportsofthosewhohavebeenattackedmayunderstandablybelacking

inobjectivity.Soitisimpossibletoforecast,eveninoutline,howanyencounterwill

develop.TheHamadryad,forexample,isusuallycreditedwithbeingamongstthemost

aggressiveofsnakes,andtherearemanyaccountsofunprovokedattacks,yetonone

occasionfourteenmenandsevendogspassedandreturnedwithintwoyardsfromanest

andnosnakewasseenalthoughthefemale,whichguardsthenest,couldnothavebeen

faraway.

21、Whenasnakemeetsapotentialenemy,itsprimarydeviceis.

A^avoidinganyobservation

findingasafeshelter

C^givingawarningthreat

D、starlingaquickattack

標準答案：A

知識點解析：首段第3句提到了蛇遇到可疑敵人時的行為模式：首先躲開對方的監(jiān)

視，第二步是尋找安全藏身處，第二是向對方發(fā)出警告，最后實施攻擊，因此選項

A為本題答案。選項B、C和D分別是對第二、第三和最后一步的近義替換，因此

都不是正確答案。

22、Thephrase"dispensewithalltheprcliminaries"(Linc7,Para1)mostprobably

means.

A、thesnakescombineallthepreviousthreesteps

B、thesnakesgiveupallthepreviousthreesteps

C^thesnakesfollowallthepreviousstepsonebyone

D、thesnakesreversetheorderofalltheprevioussteps

標準答案：B

知識點解析：首段最后一句dispensewith的前面提到過somestagesmaybeomitted

orcombined,而卜文提到attackalmostatonce,這說明dispensewith應表示有些蛇

不做前幾個步驟，而立刻展開進攻，因此它的意思應等同于omit“免除，省略"，也

即選項B中的giveup。其他選項在語法上都說得通，但是與下文的attackalmostat

once不一致，因此都不是正確答案。

23、Asnakeismostaggressivewhen.

A、itmeetsapossibleenemy

B、itiscaughtwhenitissleepingorsloughing

C^itisdisturbedunknowingly

D、itseeksapartnerinthematingseason

標準答案：D

知識點解析：第2段首句中第2個分句的mate一詞與選項D同義，因此選項D為

本題答案。其他選項都在文中提到過，也是蛇會對敵人實施還擊的情況，但是這三

個干擾項和正確選項之間的區(qū)別就在于，文中沒有提到在這些情況下“Asnakeis

mostaggressive（蛇最具有攻擊性廣，因此本題要緊扣第2段首句和其中的peak這個

單詞。

24、Itisdifficulttopredictwhatwouldhappenwhenasnakemeetsamanbecause

noonehaseverclearlyknownhowhehimselfwasbit

B、mantendstobesubjectivewhenhedescribeshisencounterwithasnake

C^theaggressivenessofthesnakesdiffersaccordingtodiversesituations

D、asnakedocsnotbegintoattackwithoutprovocation

標準答案：c

知識點.析：第2段最后兩句由So連接，顯示倒數(shù)第2句是原因，最后一句是結

果。選項C是對倒數(shù)第2句的概括，為本題答案。選項A和選項D與題干之間沒

什么關聯(lián)，易排除；選頂B雖然與該段倒數(shù)第2句的后一個分句意思相符，但它

只是作為附加信息以說明蛇的個體行為差異很大，故也可排除。

25、Theauthorusestheexampleinthelastparagraphtosupporthisideathat.

A、snakesdonotbegintheaggressiveactifitisnotdisturbed

B、somesnakesaremoreaggressiveandmorereadytoattack

C、itishardtoforecastwhetherandhowsnakeswouldattack

D、snakesoftenconcealthemselvesastheirprincipaldefense

標準答案：C

知識點解析：第3段開頭就有forexample這個標志性的詞組，表明這一句是為了

支持上文的例子。結合第2段末句可知，第3段是為了證明其不可預測性的，故C

正確。

大學英語六級改革適用（閱讀）模擬試

卷第2套

一、仔細閱讀（本題共5題，每題1.0分，共5分。）

PresidentObamahasbeentakingsomeheatintechnologycirclesovercommentshe

madeatacommencemen:addressovertheweekendaboutiPodsandiPadsandother

digitaldistractions.Becauseofthesethings,hesaid,"informationbecomesadistraction,

adiversion,aformofentertainment,ratherthanatoolofempowerment,ratherthanthe

meansofemancipation."Ihatetosaythis,buthe'sright.Rememberwhencomputers

weresupposedtosaveustime?Nowitseemsjusttheopposite.TheInternetjustkeeps

givingusmorewaysiodonothing.Wehavemoreinformationthaneverbefore.Were

neverawayfromit.Theairaroundusfairlyhumswithit.Computersareallaroundus

too-they'reonourdesks,inourpockets,onourcoffeetables.AndyetIcan'tshakethe

sensethatweareallbecomingstupiderandstupider-andthatweare,onaverage,less

wellinformedtodaythanwewereagenerationago.We'rereadinge-mail.We'retweeting

andretweeting.We'redownloadingapps,anduploadingphotos.We'reupdatingour

Facebookstatusandreadingournewsfeedsandtellingthewholeworldwhatwelikeand

don'tlike,becauseforsomereasonweimaginethatthewholeworldactuallycares.You

knowwhatwe'renotdoing?We'renotthinking.We'reprocessing.There'sadifference.

Wc'rcputtingourbrainsintoneutral,andrevolving（使旋轉）theengine.Wc'rcdigitally

ataloss,clickingonlinksandswimmingthroughatorrentofuselessgarbagebeing

thrownatusbyidiotsandself-promoters,so-calledexpertsandmarketingpeople.We're

immersingourselvesingameslikeFarmvilleandMafiaWars,obsessedaboutearning

energypacks,spendingbillionsofdollarsonvirtualgardeningtools.We'returningthe

worldaroundusintoavideogame,usingsiteslikeFoursquaretotellourfriendswhere

we'reeatinglunch,andcompetingtoseewhocanbecome"mayor"ofsomerestaurant.

Meanwhile,inthemidstofallthis,GlennBeckhasbecomeaninfluentialtelevision

commentator,andSarahPalinisacrediblecandidateforpresidentin2012.Youthink

thisisacoincidence?Noway.What'shappeningisthis:wcarcbeingsooverwhelmedby

thenoiseandjunkzooming（嗡嗡聲）pastusthatwe'rebecomingimmunetoit.We've

becomeanationofInternet-poweredfools,withanever-Iowerthresholdforboredom.

BeckandPalinaretheinevitableoutcomeofthatdevolution.Theyare,infact,what

we'vecreated.Wehaveamazingnewsystemsandtoolsforcommunicatinginformation.

Theproblemiswe'vebecomesofascinatedwiththemeansoftransmissionthatwe've

lostsightofwhat'sactuallypassingalongoverthewiresandairwaves.Sadly,Idon'tsee

thatchanginganytimesoon.Ifanything,Iimagineitwillgetworse.

1、WhydoesPresidentObamagiveanegativecommentonhigh-techdigitalproducts?

A^Becausetheseproductshaveseverelyaffectedourpowerintheworld.

B、Becausetheyonlybringusconfusingideasandfunnyentertainments.

C、Becausetheyaredesignedtoconfineourhorizonstoacertainscope.

D、Becausetheyhaven'tbroughtustheeffectonourlifetheyaresu