大学英语六级模拟试卷317

大学英语六级模拟试卷317

一、作文（本题共/题，每题上0分，共1分。）

1、Directions:Forthispart,youarcallowed30minutestowriteashortessayentitled

TheValueofScience.Youshouldwriteatleast150wordsfollowingtheoutlinegiven

below:1.有的人认为，科学的价值在于对人类物质生活的提高作出了巨大贡献；另

一些人则认为，科学的真正价值在于它提高了人的整体素质.你的看法如何？写出

你的观点，并适当举例说明你的理由.

标准答案：THEVALUEOFSCIENCEAtthementionofthevalueofscience,people

willimmediatelyassociateitwithbeneficialresultsofscientificdiscoveries—thejoys

andconvenienceswhichsciencehasbroughtintohumanlife.Itistruethatsciencehas

revolutionizedourwayoflifeandtransformedthelivesofbillionsofpeople.Ithas

becomethenew"magic"whichiscapableofdoingeverything.Thelatestdevicesand

gadgetsaroundyouforbetterlivinghaveallcomeaboutasaresultoftheapplicationof

scientificknowledge.Andpeoplenowcanhardlylivewithouitelephones,TVsets,jet

planesandcomputers.Butthetruevalueofsciencedoesnotmerelylieinthosethings.It

isfullyappreciatedbythewayinwhichsciencecontributestoman'sintellectualgrowth

andspiritualwell-being.Illiesratherwithitsprocess（hanwithitsresults.Whyare

peoplesoeagertobecomescientists?Whydoscientistsspendtheirwholelifeon

observation,experiments,andresearches?Scientistsarecompelledbycertainbasic

humanurges.Oneistheurgetoexplore.ThespiritofColumbus,ofGalileo,andof

Einstein—thespiritofconqueringunchartedplaces,discoveringunknownfactsand

climbinguntroddenmountainpeaks—isaninborngiftweareallendowedwith.Another

istheurgetocreate.ItisnotonlyembodiedinthecountlessinventionsmadebyEdison,

theworldfamousinventor,butalsoexpressedinwhatanordinarycarpenterdoes一he

tendstostandasideadmiringatthatexquisitepiecehehasjustfinished.Obviously,

sciencedoesmorethanprovidemanwithmaterialthings—ithelpsmantosatisfyhis

strongdesireforexplorationandtofullydevelophisintellectualpotentials.Scienceis

man'smostpowerfulweapon,withwhichtnanhasfreedhimselffromtheyokeof

ignoranceandconsequentfear.Scienceisman'streasurehouse,whichhasconstantly

providedhimwithvitality,hopes,ambitions,understandingandinsights.Scienceis

man'sbestfriend,whoisalwaysreadytohelp-helpelevatehimspirituallyand

intellectually.Andscience,inits（ruesense,isacelebrationofthehumanspirititself.

知识点解析：暂无解析

二、快速阅读理解（本题共10题，每题分，共10

分。）

MarriageMarriageistraditionallyconceivedtobealegallyrecognizedrelaiionship,

betweenanadultmaleandfemale,thatcarriescertainrightsandobligations.However,in

contemporarysocieties,marriageissometimesinterpretedmoreliberallyandthephrase

'livingasmarried'indicatesthatformanypurposesitmakesnosensetoexclude

cohabitation.Itshouldhenoted,however,thateventhismoreliberaldefinitionusually

excludeshomosexualcouples.Althoughcohabitationisincreasinglyaccepted,andisnow

thenormalpreludetomarriage,peoplecontinuetomakeadistinctionbetweenliving

togetheranda'proper'weddingandmarriage.Muchrecentsociologicalresearch,bothin

BritainandAmerica,hasbeenconcernedwiththegrowingfearsthatmarriageasan

institutionisindecline.Thesefearsstemfromtworoots,thefirstbeingconcernfbr

increasingmaritalbreakdownandsubsequentdivorce,andthesecond(hefactthat

marriageisgoingoutoffashion,withmorepeoplecohabitingandevenrearingchildren

outsidematrimony.Certainly,divorceisontheincrease,andifcurrentdivorce-ratesin

Britaincontinuethenoneinthreemarriagesislikelytoendindivorce.Inrecentyears,

themedianageatfirstmarriagehasincreasedandteenagemarriageshavedeclined

significantly,withagrowingproportion,albeitstillasmallminority,nevergetting

married.Atthesametime,ratesofcohabitationareincreasing,withitnowbeing

virtuallythenormtocohabitbeforemarrying.Moreover,anincreasingnumberof

childrenareconceivedandbornoutsidemarriage.Lookingatthesestatistics,onemight

reasonablyconcludethatthefutureofmarriagelooksbleak,butmarriagestillremainsthe

preferredwayoflifefbrthevastmajorityoftheadultpopulation.Evenamongthose

whosefirstmarriagefails,amajorityaresufficientlyoptimistictomarryasecondtime.

Whydopeoplemarry?InWesternsocieties,theemotionalaspectsofmarriageare

stressed,andwhatLawrenceStonecallsaffectiveindividualismprevails.Choiceofa

mateisinfluencedprimarilybythedesireforarelationshipofferingaffectionandlove—

although,asPeterBergerobserves,the"lightningshaftofCupidseemstobeguided

ratherstronglywithinverydefinitechannelsofclass,income,education,racialand

religiousbackground".Thetendencyforpeopleofsimilarbackgroundstomarry(marital

homogamy)isstrong,butthereisnoclearunderstandingofwhyitoccurs,orwhetherthe

degreeofrigidityinmateselectiondiffersamongdifferentsocialgroups.Surprisingly,

somerecentAmericanresearchsuggeststhatthehighertheclassposition,thelessthe

homogamy.Concernwithmaritalsuccessandmaritaladjustmenthasplayedan

increasinglyprominentpartinrecentresearch.AsDavidMorgansuggests,marriagehas

become"mcdicalizcd",withtherapistsandmaniagc-guidancccounsellorsatthereadyto

tacklemaritalproblemsandenhancemaritalquality.Thisraisesthequestionofhow

maritalsuccessshouldbemeasured.Clearly,stabilityisnotasufficientindicator,as

somecouplesstaytogethereventhoughtheyaretotallymiserable,whereasothers

divorce,despitehavingarelationshipthatsomewouldenvy.Avarietyofmaritalquality

inventorieshavebeendevelopedandrecentlyithasbeenrecognizedthatmaritalquality

andmaritalproblemsareinfactindependent.Forexample.conHictandargumentsmay

besignsofcaringandengagementinsomemarriages.Marriagesclearlyfacedifferent

problemsatdifferenttimesofthelife-cycle,andraisingafamily,especiallyfbrparentsof

youngerchildren,isassociatedwithhighmaritalstrain.Remarriagesappeartobeat

greaterriskofbreakingupthanfirstmarriage,especiallywhenstep-childrenare

involved.Thismaybeinpartbecauseremarriageisanincompleteinstitution,inthe

sensethatsocietalexpectationsandnormsstillreflectthetraditionalexpectationthat

marriageswilllastalifetime.AsAnthonyGiddenshaspointedout,lennslike"broken

marriages"and"brokenhomes"embodythetraditionalidealandhaveunfortunate

negativeconnotations,especiallyregardingchildrenwhoseparentsareseparatedor

divorced.Increasingly,researchisfocusingontheinterrelationshipofemploymentand

familylife,includingmarriage.Theprimaryfocushasbeenonhowwomen's

employmenthasaffectedthemaritalrelationship.Usinglongitudinalsurveys,American

researchershavefoundthatwomenwhocontributeahighershareofthehousehold

incomearemorelikelytodivorcethanwomenwhocontributealowershare,or

housewives.Itmaybethatwiveswhobecomelessdependentupontheirhusbands

financiallyarenolongerwillingtotolerateasubservientposition—andhavethe

resourcesthatenablethem(oleave.Anotherimportantquestioniswhetherthe

employmentofwomenhasledtogreateregalitarianismwithinmarriage.Somefamily

researchershavepaintedarosypictureofhowfamiliesarebecomingmoresymmetrical,

whereasotherscontinuetoexercisescepticism,assertingthatthetraditionaldivisionof

labourwithinthehomepersists,evenwhenwomenalsoholdfull-timeemployment.

JessieBernardhasclaimedthatthereisnotonemarriagebuttwo—thewife'smarriage

andthatofthehusband.Studieshaveconsistentlyshownthatmarriagetendstobemore

beneficialformenthanforwomen,withmarriedmenbeinginbetterpsychological

health,andshowingfewersymptomsofstressthanmarriedwomen.Somefeministswho

seemarriageasanoppressiveinstitutionhaveurgedwomennottomarry.The

inequalitiesofmarriage,however,arereflectionsoftheinequalitiesofthesexesin

society.AsChrisHarrisstates,"itistobeexpectedthathowevergreattheformal

equalitybetweenthespouses,wives'senseofinequalityinmarriagewillpersistaslong

astheycannot,forwhateverreason,participateonequaltermswithmeninthelabour-

market."Bernardgoesfurther,suggesting(hatthecompletechangeofhousewifelo

bread-winnersendstremorsthrougheveryrelationship.Dual-earningmarriagesare

sowingtheseedsofchange.However,despite(hedirestatistics,marriageseemstobea

ratherresilientinstitution;perhaps,verygradually,thebenefitsforbothhusbandandwife

willbecomemorebalanced.

2^Indualearningmarriagesbothpartnersareformallyemployedbutonlyone—usually

(hemale—pursuesacareer.

A、Y

B、N

C、NG

标准答案：C

知识点解析：文章没有对双收入家庭的婚姻作解拜。

3、Class,income,education,racialandreligiousbackgroundseemtoplayanimportant

partinchoosingamate.

A、Y

B、N

C、NG

标准答案:A

知识点解析：文章第三自然段第三句说明此点。在人们的择偶过程中，其阶级、收

入、教育及种族和宗教背景似乎起到很大作用。

4、Nowcohabitationnormallyhappensbeforemarriage.

A、Y

B、N

C、NG

标准答案：A

知识点解析：文章第一自然段最后一句说婚前同居现象正越来越被人们所接受。

5、Remarriagesarenotlikelytobreakupwhentherearenostepchildren.

A、Y

B、N

C、NG

标准答案：B

知识点解析：文章第五自然段第二句说如果有与前夫或前妻所生的孩子，则再婚更

易失败。

6、Accordingtorecentresearch,andarenotinterdependent.

标准答案：maritalquality;maritalproblems

知识点解析：文章第四自然段第四句说明此点。

7、Theinequalitiesofmarriagereflect.

标准答案：iheinequalitiesofthesexesinsociety

知识点解析：文章第七自然段第四句说明此点。夫妻双方家庭地位的不平等是社会

上男女地位不平等在婚姻中的反映。

8、havetriedhardtopersuadewomennottomarry.

标准答案：Somefeminists

知识点解析：文章第七自然段第三句说明此点。一些视婚姻为枷锁的女权主义者力

促妇女不结婚。

9、Whethertheemploymentofwomenhasledtogreateregalitarianismis.

标准答案：uncertain

知识点解析：义章第六自然段最后两句说明此点。妇女就业能否给婚姻带米更大的

男女平等，人们将拭目以待。

10、Withmorepeoplecohabitingandevenrearingchildrenoutsidematrimony,.

标准答案：marriageisgoingoutoffashion

知识点解析：文章第二自然段第二句说明此点。随着更多的人同居，甚至养育非婚

生的子女，婚姻正变得不再风行。

11、Asshownbyresearch,astablemarriagedoesnotnecessarilymeana(n)

marriage.

标准答案：ideal

知识点解析：文章第四自然段第四句说明此点。稳定的婚姻并不一定是理想的婚

姻。

三、听力短对话（本题共8题，每题上0分，共8分。）

12、

A^Janetislookingata（ravelguide.

B、Janetmaybetoobusytogoawayforaweek.

C、Janetcantakethewoman%booktothecountry.

D^Janettoresomepagesoutofherbook.

标准答案：B

知识点解析：选项都和Janet有关。tearoneselfaway勉强使自己离开。Onlyif...表

示虚拟，意思是Janel忙着看书不会和我们一起去的。

13、

A、Theweatheryesterday.

B、Apollutedriver.

C、Hotelaccommodations.

D、Thequalityoftheair.

标准答案：D

知识点解析：从Thepollution'sgoingtobesobadtheyrecommendstaying

indoors.可以得知由于污染很严重，天气预报建议呆在室内。因此他们谈论的是空

气质量。

14、

A^hishavingfinancialtrouble.

B、Itschemistiyprogramisverypopular.

C、Thefeesforthechemistrycoursehavebeenreduced.

Thenumberofstudentshasdoubled.

标准答案：A

知识点解析：从organicchemistry...it,sbeencut/doublethetuition可以得知学校的经

费出现了问题。

15、

A^Mark'shappythathisparentsarecoming.

B、Mark'sthinkingaboutanumberofthings.

C^Mark'snotfeelingveryv/cll.

D、Mark'slookingfbranewapartment.

标准答案：B

知以点解析：选项都和Mark有关。从he,sjustgotalotonhismind.可以得知他有

很多事要考虑。

16、

A^Shehasfinishedonlyonestep.

B、Shedoesn'thaveanymoretimeforredecorating.

C、Theworkhasbeencompleted.

D、Theredecoratingisbeingdonegradually.

标准答案：D

知识点解析：选项和redecorating有关。从takingitonestepatatime可以得知装修

工作是逐步进行的。

17、

A^Thestudentsshouldreturntoclasses.

B、Lastnight'smeetingwasbadlymanaged.

C、Thereshouldbemoreissuestovoteon.

D、Morestudentsshouldcoinetothemeetings.

标准答案：D

知识点解析：从They'llhavetoturnoutingreaternumbers可以得知应该有更多的学

生出席。

18、

A、GivingSpainlessons.

B、HavingprivateSpanishlessons.

C、GivingSpanishteststostudents.

D^Studyingcontinuallyfortwodays.

标准答案：D

知识点解析：从【spentthelastforty-eighthourscrammingforit.可以得知男士花了

两天时间准备西班牙语考试。

19、

A、Atascienceexhibit.

Atanewsconference.

C、Nearanartmuseum.

D、Nearapaintstore.

标准答案：C

知识点解析：选项都和地点有关。从goinandseethenewexhibit...myfavorite

painiers…可以得知地点是在艺术博物馆附近。

四、听力长对话（含3小题）（本题共3题，每题7.0

分，共3分。）

20、

A、Inadentist'soffice.

B、Inadrugstore.

C、Inahospital.

D、Inadoctor'soffice.

标准答案：B

知识点解析：选项都是地点。从Couldyougivemesomethingforthepain?Aspirin...

Icangiveyouwithoutaprescription.可以得知对话发生.在药店，男士可以给公士不

需要处方就能买的阿司匹林。

21、

A^Totellhimthatthewomanwouldmeethimathisoffice.

B、Toaskhimforanappointment.

C^Toaskhitnwhattimethewoman'sappointmentwas.

D、Togetaprescriptionforthewoman.

标准答案：D

知识点解析：选项都是to引导的。问题可能和目的有关。Icancallhimifyoulike

Dr.Williamswillgivemeapainprescriptionoverthephone,男士打电话给Dr.

Williams是为了让他给女士开止疼的处方药。

22、

A、Thewomanhadatoothache.

B、Shewantedtobuysomeaspirin.

C、ShewasaregularpatientofDr.Williams.

D、Dr.Williamswasverybusy.

标准答案：B

知识点解析：选项和女士及Dr.Williams有关。本题是判断题。从Aspirinisthe

strongest...Thatisn'tstrongenough...可以得知女士想买比阿司匹林药性更强的药。

所以B是错误的。

五、听力长对话（含4小题）（本题共4题，每题1.0

分,共4分。）

23、

A、Findoutifarockclimbingcoursewillbeoffered.

B、Planarock-climbingtripoverspringbreak.

C、Convincethemantotakearock-climbingcoursewithher.

D、Findaplacetogorockclimbing.

标准答案：C''

知识点解析：选项都和rock-climbing有关。从You'vegottotakerock-climbing.You

thinkIshouldtakerock-climbing?可以得知女士的目的。

24、

A^Thecollegedoesn'ihaveanyrock-climbingequipment.

B、Therearenoappropriateplacesforrockclimbingnearby.

C、Thereisnoonetoteachthemhowtodoit.

Notverymanystudentsareinterestedinit.

标准答案：B

知识点解析：本题是细节题。从Besides,howcantheyteachrock-climbingwhenit's

completelyflataroundhere?可以得知男士的意思是没有适合训练攀岩的地方。

25、

A^Climbershavetheopportunitytobeoutsideandenjoythescenery.

B、Climbingisn'tasexpensiveasothersports.

C^Learningtoclimbdoesn'ttakeaverylongtime.

D、Climbersdevelopskillsusefulinotheractivities.

标准答案：D

知识点解析：选项都和dinib有关。本题是因果题。Inpreparingtoclimbyou

learnpatience,mentaldiscipline...可以得知女士为何对攀岩感兴趣。

26、

A^Increasingupper-bodystrength.

B、Discussingpopularclimbingsites.

C、Selectingthenecessaryequipment.

D、Findingaclimbingpartner.

标准答案：A

知识点解析：本题是细节题。从Forthefirstfewweekswe'regoingtoconcentrate

entirelyonhandandupperbodyexercises.可以得知前几节课的重点。

六、听力短文（含3小题）（本题共6题，每题7.0

分,共6分。）

27、

A^BecauseitwasbuiltbyEnglishmen.

B、Becauseitcouldworkforman.

C、Becauseitcouldbeusedwheneverandwhereveritwasneeded..

D、Becauseitcouldturnwheel.

标准答案：C

知识点解析:选项和原因有关。本题是因果题。从Thisgavemanakindofpower

(hathecoulduseanywhereandatanytime.可以得知C是正确答案。

28、

A、In1774.

B、In1765.

C、Intheseventeenthcentury.

D^Inthenineteenthcentury.

标准答案：A

知识点解析：选项和时间有关，本题是时间题。从Wattwasrepairingoneofthese

enginesin1765...Heworkedfornineyears...可以得知是1774年。

29、

A^Topullatrain.

B、Todriveapaddlesteamboat.

C、Togetwaterfromgroundandturnthewheelsofmills.

D^Todonothing.

标准答案：C

知识点解析：选项和目的用途有关。本题是细节题。从Soontheywerepumping

waterandturningthewheelsofmillsinmanypartsofEngland.可以得知是Co

3。、

A、Findafamiliarface.

B、Findakindperson.

C^Starttalkingwithastranger.

D、Squeezeintotheline.

标准答案：A

知识点解析：本题是细节题。从Oneof(hemoreusualproceduresofqueue-jumping

involvesfindinganacquaintanceinthequeue...可以得知是先在队伍里找个熟人再插

队。

31、

A^Heisinterestedinthem.

B、Heissickofthem.

C、Heischeatedby(hem.

Heisexperiencedinthem.

标准答案：B

知识点解析：选项都和he的态度有关。从Queue-jumpingisuncultured,selfish,

meanerthanthemeanestactofanylesseranimal...thequeue-jumperevenhadthecheek

toask…可以得知作者对插队和插队者的态度是厌恶，恶心的。

32、

A、Thespeakerhatesqueue-jumpingmorethananythingelse.

B、Thetwousualwaysofqueue-jumping.

C、Queue-jumpingisadisgustingandhatefulact.

D、Thequeue-jumpershavetheirreasonstosqueezeintotheline.

标准答案：C

知识点解析：选项和主旨有关。B不够全面。A、D没有畀到。文章的第一句就表

明了主题。

七、听力短文（含4小题）（本题共4题，每题1.0

分,共4分。）

33、

A^Externalconditions.

B、People'sinternalconditionsinfluencedbyphysicalormentalfactors.

C、Slipperyroads.

D、Achainofevents.

标准答案：B

知识点解析：选项和因素，条件有关。本题是细节题。Mfrustration,tiredness,or

justbadtemper...thatshowwhat（heaccidentreallyis,asortofattackononeself.可以

得知事故主要是由不好的身体或心理状况引起的。

34、

A、Caraccidentsaremainlycausedbysomedriverswhodrivesocarelesslythatthey

violatethetrafficregulations.

B,Caraccidentsaremainlycausedbyordinarydriverswhentheyarecarelessorabsent

mindedforamoment.

C、Insurancecompaniessupportthosewhodrivecarelessly.

D、Anaccidentissomethingwecannotpredicttoavoid.

标准答案：A

知以点解析：选项是和事故有关的细节。本题是细节题。theideawhichusedto

hecurrent...thatthemajorityofroadaccidentsarecausedbyaminorityofcriminally

carelessdrivers...可以看知人们过去一贯认为事故是由驾驶者违章造成的。

35、

A、Mood.

B、Tiredness.

C、Carelessness.

D^Weather.

标准答案：D

知识点解析：选项和因素有关。本题是细节题。从leadinguptothemisfortune—

frustration,tiredness,orjustbadtemper—mostaccidentsinvolveinamomentof

carelessnessorthoughtlessness.可以得知天气因素没有提到。

36、

A、Safetyregulationseffectivelypreventtheaccidentsatwork.

B、Withallthesafetyprecautions,accidentsatworkcannotbeavoided.

C、Thehumanerrorormisjudgmentleadingtoaccidentsalworkaremainlydueto

workingenvironment.

D、Howtopreventaccidentsonroads.

标准答案：B

知识点解析：选项和accidents有关。本题是推断题。从thelawrequiresallfactories

(otakesafetyprecautionsandmostcompanieshavesafetycommittees(omakesurethat

(heregulationsareobserved,butstill,everydayinBritain,somehftythousandmenand

womenareabsentfromw

八、听力复合式听写(本题共〃题，每题7.0分，共

〃分。)

Americancitiesare[Bl]toothercitiesaround(heworld.Ineverycountry,

cities[B2]thevaluesoftheculture.Citicscontaintheverybestaspectsofa

society,[B3]foreducation,employment,andentertainment.Theyalsocontain

theveryworstpartsofasociety:violentcrime,racial[B4],andpoverty.

Americancitiesarechanging,justasAmericansocietyischanging.AfterWorldWarII,

city[B5]becamewealthier,more[B6].Theyhadmorechildren.

Theyneededmorespace.Theymovedoutoftheirapartmentsinthecitytobuytheirown

homes.Theyboughthousesinthe[B7]______,areasnearacitywherepeoplelive.

Theseareareaswithoutmanyofficesorfactories.Duringthe1950stheAmericandream

wastohaveahouseinthesuburbs.Nowthingsarcchanging.Thechildrenofthepeople

wholeftthecitiesin1950sarcnowadults.They,[B8]theirparents,wantto

liveinthecities.[B9)Manyaresingle;othersaremarries,butoftenwithout

children.Theyprefer(hecitytothesuburbsbecause(heirjobsarethere;[BIO]

Anewclassismovingintothecityawealthier,moremobileclass.[Bl1].

Somecityresidentsnowseeabright,newfuture.Othersseeonlyproblemsandconflicts.

Onethingissure:Manydyingcitiesarealiveagain.

37、[B5]

标准答案：similar

知识点解析：暂无解析

38、[B2]

标准答案：reflect

知识点解析：暂无解析

39、[B3]

标准答案：opportunilies

知识点解析：暂无解析

40.[B4]

标准答案：conflict

知识点解析：暂无解析

41、[B5]

标准答案：residents

知识点解析：暂无解析

42、[B6]

标准答案：prosperous

知识点解析：暂无解析

43、[B7]

标准答案：suburbs

知识点解析：暂无解析

44、[B8]

标准答案：unlike

知识点解析：暂无解析

45、[B9]

标准答案：Manyyoungprofessionals,doctors,lawyers,andexecutives,aremoving

backintothecity

知识点解析：暂无解析

46、[BIO]

标准答案：theyareafraidofthefuelshortage;ortheyjustenjoytheexcitementand

opportunitieswhichthecityoffers

知识点解析：暂无解析

47、[Bll]

标准答案：Onlyafewyearsago,peoplethoughtthattheolderAmericancitieswere

dying

知识点解析：暂无解析

九、阅读（常规阅读理解）（本题共/。题，每题

分，共10分。）

Deathcomesquicklyintherriountains.Eachwinterholidaymakersarecaughtunaware

astheyhappilyskiawayfromthefixedruns,littlerealizingthatasmallavalanche（雪崩）

cansendthemcrashinginabone-breakingfalldowntheslopeandleavethemburied

undertonsofcrispwhitesnow.Therearelotsoftheoriesabouthowtoavoiddisaster

whenhitbyanavalanche.Practiceisnormallylesscheerful.ThesnowintheSalzburgof

Austriawherearecentdisastertookplacewastypicalavalanchematerial.Forseveral

daysbefore（heincidentIhadskiedlocally.Earlywintersnov/waswearingthinand

coveredwithice,On(opofthatnew,warmerflakesweregentlyfallingioproducea

dangerouscarpet.Totheskierwhoenjoysunmarkedslopesitistemptingstuff,deepnew

powersnowonahardbase-theskiingthatdrcamsaremadeof.Andsometimes

nightmares.Snowfallsinsectionslikeacake.Differentsectionshavedifferentdensities

becauseofthetemperaturesatthetimeofthefallandintheweeksafterwards.Problems

coinewhenanyparticularsectionistoothickandnotstickingtothesectionbeneath.The

snowof(hepastfewweekshadbeenfailinginratherhighertemperaturesthanthoseof

DecemberandearlyJanuary.Theresultoftheseconditionsisthatevenaslightincrease

in(hetemperaturesendsathinstreamofwaterbetweenthenewsnowandtheold.Then

thenewsnowsimplyslidesoffthemountain.Suchslidesarenotunexpected.Local

citizensknowtheslopeswhichtendtoavalancheandtheweatherinwhichsuchslides

arelikely.Trapsaresettocatchthesnoworpreventitslipping;bombsareplacedand

explodedfromtimetotimetosetoffsmallavalanchesbeforeabigonehastimetobuild

up;andaboveall,skiersarev/arnednottoskiindangerareas.Inspiteofthis,avalanches

happeninunexpectedareasand,ofcourse,skiersignorethewarnings.Theonecomfort

torecreationalskiers,however,isthatavalancheincidentsonthemarkedskislopesare

quiterare.Noskiresortwantstheimageofbeingadeathtrap.

48、Eachwinterholidaymakersinthemountainscomefacetofacewithdeathbecause

A、theyfailtorealizehowdangerousavalanchescanbe

B、theyarenotexpertenoughatskiingonthefixedruns

C、theyaretryingtoavoidareaswhereavalancheshappen

D、theyskigreatdistancesdownthemountainsides

标准答案：A

知识点解析：细节题。根据第一段第二句，当度假者在固定滑道滑下时,很少意识

到即使是一次小的雪崩也足以使他们摔下并被数吨的白雪掩埋。

49Accordingtothewriter,skiingconditionsintheSalzburgareaofAustriabeforethe

accidenthappenedwere.

A^perfectfortheinexperiencedskier

B、unsafebecausethenewsnowwascoveredwithice

C、typicalofconditionsresultinginavalanches

D、suitableonlyforskiinglocally

标准答案：C

知识点解析：细节题。根捱第二段第一句，SalzburgareaofAustria的雪是典型性的

雪崩材料。

50、Itwouldappearfromthetextthatavalanchesarebroughiaboutbecause.

A、aparticularsectionofsnowisnotthickenough

B、thereisaslightfallinthetemperature

C、heavysnowfallsturnintorain

D、theicebetweendifferentsectionsofsnowmelts

标准答案：D

知识点解析：推理题。根据第三段最后两句，即使温度稍有升高也足以使积雪融

化，新雪移动，从而导致雪崩。

51、Inareaswhereavalanchesarcknowntohappen.

A、localresidentsstayindoorswhentheweatherisbad

B、measuresaretakentopreventseriousavalanches

C、smallavalanchescaneasilybeprevented

D^skiersformthemselvesintoawalltokeepthesnowinposition

标准答案：B

知识点解析：推理题。文章第四段中提到了当地居民为防止雪崩而采取的各种措

施。

52、Althoughaccidentsdohappen,skierswillbereasonablysafeif.

A、theystayontheofficiallyapprovedslopes

B、theyskionlyforpleasure

C、theyskionlyatresorts

D、theychooselesscrowdedskislopes

标准答案：A

知识点解析：细节题。根据最后一段第二句，使滑雪者欣慰的是，在指定的滑坡上

发生雪崩是极为罕见的。

Therearesomeearthphenomenayoucancounton,butthemagneticfield,somesay,is

notoneofthem.Itfluctuatesinstrength,driftsfromitsaxis,andeveryfew100,000years

undergoesadramaticpolarityreversal—aperiodwhennorthpolebecomessouthpole

andsouthpolebecomesnorthpole.Buthowisthefieldgenerated,andwhyisitso

unstable?GroundbreakingresearchbytwoFrenchgeophysicistspromisestoshedsome

lighton（hemystery.Using80metersofdeepseasedimenl（沉淀物）core,（heyhave

obtainedmeasurementsofmagnetic-fieldintensitythatspan1ipolarityreversalsand

fourmillionyears.Theanalysisrevealsthatintensityappearstofluctuatewithaclear,

well-definedrhythm.Althoughthestrengthofthemagneticfieldvariesirregularlyduring

theshortterm,thereseemstobeaninevitablelong-termdeclineprecedingeachpolarity

reversal.Whenthepolesflip-aprocessthattakesseveralhundredthousandyears—the

magneticfieldrapidlyregainsitsstrengthandthecycleisrepeated.Theresultshave

causedastiramonggeophysicists.Themagneticfieldisthoughttooriginatefrommolten

（熔化的）ironintheoutercore,3.000kilometersbeneaththeearth'ssurface.Bystudying

mineralgrainsfoundinmaterialrangingfromrockstoclayarticles,previousresearchers

havealreadybeenabletoidentifyreversalsdatingback170millionyears,includingthe

mostrecentswitch730,000yearsago.Howandwhytheyoccur,however,hasbeen

widelydebated.Severaltheorieslinkpolarityflipstoexternaldisasterssuchasmeteor

（陨星）impacts.ButPeterOlson,ageophysicistat（heJohnsHopkinsUniversityin

Baltimore,saysthisisun.likelyiftheFrenchresearchersareright.Infact,Olsonsays

intensitythatpredictablydeclinesfromonereversaltothenextcontradicts90percentof

themodelscurrentlyunderstudy.Iftheresultsprovetobevalid,geophysicistswillhave

anewtheorytoguide(heminiheirquesttounderstandtheearth'sinnerphysics.It

certainlypointsthedirectionforfutureresearch.

53、Whichofthefollowingtitlesismostappropriate(o(hepassage?

A、PolarityReversal:AFantasticPhenomenonofNature.

B、MeasurementoftheEarth'sMagnetic-FieldIntensity.

C^Formationof(heTwoPolesoftheEarth.

D、ANewApproachtotheStudyorGeophysics.

标准答案：A

知识点解析：主旨题。根捱文章第一段，地球磁场很不稳定，而且大约每几十万年

地球磁场的两极就会发生一次转换，后面几段都围绕其原因进行讨论，故选A。

54、Theword"flip"(lastsentence,Paragraphtwo)mostprobablymeans.

A、decline

B、intensify

C、fluctuate

D、reverse

标准答案：D

知识点解析：词汇题。根捱第二段最后一句，polesflip的过程需要经过几十万年，

再根据第一段，可以推断出polesflip应该是指磁极转换。

55、Whathavethe(woFrenchgeophysicistsdiscovered