2022-2023年黑龍江省七臺河市大學(xué)英語6級大學(xué)英語六級重點匯總（含答案）

2022-2023年黑龍江省七臺河市大學(xué)英語6級大學(xué)英語六級重點匯總（含答案）學(xué)校:________班級:________姓名:________考號:________

一、2.ReadingComprehension(SkimmingandScanning)(20題)1.

Thepassagetellsuswhybathsandmassagesbenefitusintermsofmood.

A.YB.NC.NG

2.

Hedonicadaptationmeanspeoplealwaysreturntotheirusuallevelofhappinessafterthetemporarysatisfaction.

A.YB.NC.NG

3.

Themostimoportantqualityofataglineismemorability,whichenablesthelinetoberecalledunaided.

A.YB.NC.NG

4.

AndrewJohnsonwasamemberof______.

5.YaleUniversityisnamedafterElihuYale,whoonceworkedforEICas______.

6.

Somepeoplesufferheadachesonweekendsbecausetheirusualeatingandsleepinghabitsformedduringtheweekaresuddenlybroken.

A.YB.NC.NG

7.

Besidesthefeatureof"doingmorewithless",thesphericalstructureofdomecanalsoallownatural______withoutobstruction.

8.

Thedifferencebetweenreal-worldartist'splayingandsingingandheronlinealterego'sisthatthelatter______.

9.Traditionalmediaoutletssuchas______maystillhoaxtheiraudiencesnowadays.

10.

Inappropriatesmilecanharmyourimageinthejobinterview.

A.YB.NC.NG

11.It'ssaferforyoutofishoutandholdthecardinhandbefore______.

12.

Communicationchallengesresultfromdifferencesin______.

13.

Theautomatedphonesystemisso______thatpeoplehavetotalktoarealpersontosolvesomeproblems.

14.

TheS&P500indexroseby2.3%onJuly29thasaresultof______.

A.interruptionoftheministerialtalks

B.thehealthypaceofglobeGDP

C.thegrowthoftheworld'sGDPby$70billion

D.otherfactors

15.

Theright-handcontroloftheMollerSkycarisusedtocontrolthevehicle'smovingpath,velocityandbreaks.

A.YB.NC.NG

16.

Whencompaniesstartedlosinglawsuitsregardingtheirchemicalemissions,theideaoftoxicreductionbecameratherpopularin______.

17.

ThebigproblemofYouTubeisabout______.

A.violatedcopyrightandlowprofit

B.illegalbusiness

C.users'oddbehaviorsandpiratedvideos

D.Google'sacquisition

18.

OneofthemostdisturbingtruthsaboutTVisthatitmakesreadingbooksceasetobe______inoursociety.

A.themostpopularrecreation

B.theonlymethodofacquiringliteracy

C.theprimarywayofgettinginformation

D.thefinancialresources

19.

Australianschoolsandsocialinstitutionsmayhavecontributedtotheproblemofsuicideamongboysbyfocusingongivinggirlsmoreopportunitieswhileleavingboysontheirown.

A.YB.NC.NG

20.Olderpeoplewhomaintainactiverelationshipswiththeiradultchildrenhavelessstressbecausetheyhavesomeoneto______.

二、3.ListeningComprehension(20題)21.(47)

22.SectionB

Directions:Inthissection,youwillhear3shortpassages.Attheendofeachpassage,youwillhearsomequestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA,B,CandD.

聽力原文：Isuddenlyheardanelephantcryingasthoughfrightened.Lookingdown,Iimmediatelyrecognizedthatsomethingwaswrong,andrandowntotheedgeofthenearbank.ThereIsawMaShwewithherthree-month-oldbabystrugglinginthefast-risingwater,anditwasalife-and-deathstruggle.Herbabywasfloatingandscreamingwithfear.MaShwewasasneartothefarbankasshecouldget,holdingherwholebodyagainsttherushingwater,andkeepingthebabypressedagainstherhugebody.Everynowandthentherushingwaterwouldsweepthebabyaway.Therewasasuddenriseinthewaterandthebabywaswashedcleanoverthemother'sbodyandwasgone.MaShweturnedquicklytoreachitandpressedthebabywithherheadandtrunkagainsttherockybank.Thenwithahugeeffort,shepickeditupinhertrunkandtrieduntilshewasabletoplaceitonanarrowshelfofrock.

Justatthismoment,shefeltbackintotheriver.Ifshewerecarrieddown,itwouldbecertaindeath.Iknew,aswellasshedid,thattherewasonespotwhereshecouldgetupthebank,butitwasontheothersidefromwhereshehadputherbaby.WhileIwaswonderingwhatIcoulddonext,Iheardthesoundofamother'slove.MaShwehadcrossedtheriverandgotupthebankandwasmakingherwaybackasfastasshecould,roaringallthetime.Buttoherbabyitwasmusic.

Questions30to32arebasedonthepassageyouhavejustheard.

30.Whatdidthespeakerseethemomenthegotdowntotheriverbank?

31.HowdidMaShwemanagetosaveherbabyfromthefast-flowingwater?

32.Howdidthebabyfeelaboutthemotherelephant'sroaring?

(27)

A.Thebabywasabouttofallintotheriver.

B.MaShwewasplacingthebabyontherock.

C.Thebabywaswashedawaybytherisingwater.

D.MaShwewasholdingthebabyagainsttherushingwater.

23.(32)

A.Protectingroadsalongtheshore.

B.Buildingonbeacheswithseawalls.

C.Addingsandtobeacheswithseawalls.

D.Stoppingbuildingseawalls.

24.(34)

A.Gatheringnon-relevantmaterials.

B.Stealinganotherperson'sideas.

C.Sharingnotewithsomeoneelse.

D.Handinginassignmentslate.

25.聽力原文：W:IthinkTomlefthisumbrellaonthebus.

M:Whyhe'ssoirresponsibleisbeyondme.

Q:WhatdoesthewomansayaboutTom?

(15)

A.Hegotoffthebusatthewrongstop.

B.Hehasagoodreasontobeangry.

C.Heisn'tcarefulwithhisbelongings.

D.Hedoesn'thaveanextraumbrella.

26.

【B6】

27.(22)

A.Heshouldoftenwarmhiskneesupbyusinghotwaterpads.

B.Heshouldwarmhimselfupbysittingbythestove.

C.Heshoulddrinkcoldwater.

D.Heshouldoftentakecoldbaths.

28.(26)

A.Signapetition.

B.Helpthemanplanastudentrally.

C.Usethestudentparkinglot.

D.Makeadonationtosupportthegroup.

29.(29)

A.Theyhaveaccidentswhentheytrytooutrunotherboats.

B.Theyfalloverboardwhentheystandupintheirboat.

C.Theysitorlieonthebottomoftheirboat.

D.Theyfallasleepandwaterenterstheirboat.

30.聽力原文：W:Howard,whatareyouworkingonnow?

M:Ihavejustfinishedapieceonthebackgroundmusic.

W:Backgroundmusic?Oh,likethemusicthey'replayingherenow.

M:Yes.Youcanheariteverywhere--inrestaurants,airports,supermarkets,departmentstoresandsoon.It'ssupposedtoinfluenceyourattitudes,putyouintherightmood.

W:IamnotsureIlikethatidea.

M:Well,itseemstowork.Companiespaymillionsofdollarseveryyearforbackgroundmusic.It'ssupposedtogiveyouabetterfeelingaboutyourselfandthepeoplearoundyou.Factoriesuseitalot.Itmakestheworkershappy,andtheyworkbetterthatway.Inonefactory,musicincreasedproduction4.5percent.

W:Ishouldthinkthey'dgettiredofhearingmusicallday.

M:Theydon't,though.OnefellowinSanFranciscotoldme,"Ifthemusicstops,somebodyalwaysrunstothetelephonetocomplain."

W:NowthatIthinkaboutit,Ican'trememberwhentherewasn'tbackgroundmusicinrestaurantsandstores.

M:Thatshowshowyoungyouare.Actually,itallstartedduringWorldWarⅡwhensomefactorieshadtheirownorchestrastokeepworkershappyandcalm.Nowdifferentkindsofmusicareplayingatdifferenttimesduringtheday.Theyplayfastermusicatteninthemorningthanateight,forinstance,becauseworkerstendtobeslowerthen.

W:Whataboutrestaurants?Dotheyplaythesamemusicfordinnerandlunch?

M:Idon'tknowaboutthat,butIdoknowthathamburgerplacesplayfastmusic.Whentheystartedplayingfastermusic,theyfoundthatacustomerspentonlyseventeenminuteseating.Thetimewastwenty-minutesbeforethat.

(22)

A.Anorchestraconductor.

B.Anmusicfan.

C.Asalesmanagerinamusiccompany.

D.Abackgroundmusiccomposer.

31.聽力原文：BenjaminFranklinwasawriter,printer,inventoranddiplomat.Hewastheonlypersontosignfourhistoricdocuments.TheyaretheDeclarationofIndependence,theTreatyofAlliancewithFrance,theTreatyofPeacewithGreatBritainandtheConstitutionoftheUnitedStates.

BenjaminFranklinwasborninBoston,Massachusetts.Heleftschoolattheageoftenbecausehisparentscouldnotpayforhiseducation.Hetaughthimselfmathematics,scienceandfiveforeignlanguages.Heworkedforseveralprinters.Thenheboughthisownprintshop.HewroteandpublishedanewspapercalledthePennsylvaniaGazette.Hebecamewellknownasthepaperbecamesuccessful.FranklinhadevenmoresuccesswithapublicationcalledPoorRichard'sAlmanac.Itwasfamousforwisesayingsthatpeoplestillusetoday.Hereisone:"Earlytobedandearlytorisemakesamanhealthy,wealthyandwise."

BenjaminFranklinwasalsoascientist.Hisexperimentsprovedthatlightningisacurrentofelectricity.Heinventedthelightningrodtoprotectbuildingsfromdamage.Healsoinventedastovethatheatedaroommoreeffectivelythanothers.

BenjaminFranklinwantedtoimprovelifeinPhiladelphiawhenheservedasitspostmaster.Hehelpedestablishthefirstlibraryandorganizedafiredepartment.Hestartedaprogramtolightcitystreets,gatheredmoneytoopenahospitalandhelpedestablishthecity'sfirstuniversity.

Asweallknow,BenjaminFranklinalsohelpedestablishtheUnitedStatesgovernmentbyhelpingtowritetheDeclarationofIndependenceandtheConstitution.

(30)

A.BenjaminFranklinwasagreatscientist.

B.BenjaminFranklinsignedfourhistoricdocumentsinhislifetime.

C.BenjaminFranklindidn'tleaveschooluntilhewastwenty.

D.BenjaminFranklinoncehadhisownprintshop.

32.SectionA

Directions:Inthissection,youwillhear8shortconversationsand2longconversations.Attheendofeachconversation,oneormorequestionswillbeaskedaboutwhatwassaid.Boththeconversationandthequestionswillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarkedA,B,CandD,anddecidewhichisthebestanswer.

聽力原文：W：Iwanttobookapackagetour．I'dliketostopoverfivedaysineitherIrelandorSpain．

M：YoucallhavefivedaysinIrelandorFranceifyouwish．

Q：Whattravelplanswillthewomanprobablymake?

(12)

A.ShewillspendfivedaysinIreland.

B.Shewillhaveapackagetourwithlotsofstopover.

C.Shewilltakealongertrip.

D.ShewillspendfivedaysinFrance.

33.聽力原文：M:Areyougoingtothedemonstrationtohelpstopthespreadofnuclearweaponstomorrow?

W:No,Simon.Ihatedemonstrations.Ihaveheardthepolicewillbestandingbywithteargas.Idon'twanttogetinvolvedinariot.Besides,Idon'tseewhytheUnitedStatesshouldbetheonlycountryallowednuclearweapons.

M:Yes,butNorthKoreaboastingithasnucleararmsisscary.Nobodyknowswhohasandwhodoesn'thavenucleararmsanymore.Therearetoomanycrazypeopleintheworld.Someonehastoputastoptonuclearweaponstosavetheworldfromeitherabadaccidentorbadpeopleorterrorists.

W:OnehundredninetycountrieshavesignedtheNuclearNon-ProliferationTreatybuttheissuesarejusttoocomplex.Therearetwosidestoeverystory.Idon'tunderstanditandIhavenointentionofgoingtoademonstration.Demonstrationsdon'tseemtoaccomplishanythinganyway.

M:Severaldemonstrationshavechangedpoliticians'mindsthroughouthistory.AsaresponsiblecitizenIthinkitisimportanttostandupforwhatyoubelievein.

W:Leaveittosomeoneelse.AsIsaid,ifyoulistentobothsidesofthestory,bothsideshavesomegoodpoints.Iamnotanexpertonworldaffairs.WhyshouldIdemonstrateandriskgettinghurtforsomethingthatIamnotevensureisright?

M:Youarenotlikelytogethurt.Thiswillheapeacefuldemonstration.Ihavespokentotheorganizerfortheuniversitygroup.Hehasordered25busestotakestudentsdowntown.Heinsiststhatthiswillbepeaceful.Headvocatesifyouwantworldpeace,peacebeginsathome—andthatmeansrighthereinthiscity.Hehasaskedeveryonetobecalm.Placardsandsignsarebeingpreparedforustocarry,butheisinsistingstudentsjustmarch,notgetangryorconfrontational.

W:Yougoifyouwantto,Simon,butIplantostudyformyphysicsexam.

M:Itwouldonlytaketwohoursofyourday.Thebusleavesthecampusat11:30andleavesdowntowntoreturntocampusat12:45.Youcouldeatyourlunchonthebus.

W:Iamnotgoing,Simon.Whydon'tyouaskthestudentsinyourpoliticalscienceclassthisafternooniftheywanttogo?

M:Theyareallgoing.WediscussedweaponsofmassdestructionandtheNuclearNon-ProliferationTreatyinourlasttutorial.Thedecisionaboutattendingthedemonstrationwasunanimous.All26ofusdecidedwedefinitelywantedtogo.Somestudentsaremakingplacardsandbannerstonight.IamnotsureIwillbeabletohelpthemasIneedtostudyforthatphysicsexamtoo.

W:Itisinterestingthatyourwholepoliticalscienceclassisgoingtothedemonstration.Doyouhaveaverypersuasiveleaderintheclass?

M:Thereareafewoutspokenpeoplewhocanpresentagoodargument,butIthinkmostpeoplehadalreadymadetheirminduptoattendbeforethediscussion.Therearealotofpacifistsinthegroupbuteventhemoreconservativestudentsarekeentogotothisdemonstration.

W:Okay,Simon.Ineedtomeetmysisterforcoffeenow.

M:Bye.Seeyouinphysicsclasstomorrow.

(20)

A.Pollutionproblem.

B.Populationproblem.

C.Unemploymentproblem.

D.Nuclearweaponproblem.

34.聽力原文：M:Aren'tthereanydirectflights?

W:I'msorry.Yourbestbetwouldbeatninea.m.departureonUnitedflighttwelvearrivinginChicagoatelevena.m.,withfive-hourwaitforyourconnectingflighttoLosAngeles.

Q:WhattimewillthemanleaveChicago?

(17)

A.At9a.m.B.At11a.m.C.At2p.m.D.At4p.m.

35.SectionC

Directions:Inthissection,youwillhearapassagethreetimes.Whenthepassageisreadforthefirsttime,youshouldlistencarefullyforitsgeneralidea.Whenthepassageisreadforthesecondtime,youarerequiredtofillintheblanksnumberedfrom36to43withtheexactwordsyouhavejustheard.Forblanksnumberedfrom44to46youarerequiredtofillinthemissinginformation.Fortheseblanks,youcaneitherusetheexactwordsyouhavejustheardorwritedownthe

Onecalledherbossa"bitchfromhell"whileanotheradmitted"lyingthroughhisteeth"atinterview.BoththeBritishjob(36)______were—notsurprisingly—turneddownafter(37)______employersdiscoveredtheircandid(38)______onapublicWebsite.TheLondonrecruitmentfirmwhichrevealedthecaseswarnedthatemployerswere(39)______scouringtheInternettocheckwhatcandidatesarereallylikebehindtherosyimagethey(40)______toprojectinCVsandinterviews."Onemediasales(41)______aged24hadajoboffer(42)______afteraquickcheckonwww.friendsreunited.co.ukrevealedthattheapplicantonlyplannedtostayinLondonforafewmonthsbefore(43)______onaworldtour,"London'sMediaContactssaid.(44)____________."Anothercandidate,anaccountmanagerforawell-knownPRagency,wasforcedtoresignwhenshedescribedherbossasa'bitchfromhell'andheremployeras'abunchofcowboys',"MediaContactssaid.(45)____________,setuptokeepoldschoolpalsintouch,thatheliedatinterviewandhisCVwas"amasterpieceoffiction.""(46)____________,"MediaContacts'recruitmentconsultantGordonCherringtonsaid."Havingfunisagoodthing,thoughnegativityinanyform,rarelyreflectswellonthewriter."

36.【B10】

37.聽力原文：M:Ithinkweshouldmoveontothenextitem.

W:OK.ButI'dliketotakethismatterupagainattheendofthemeeting.

Q:Whatdoesthewomanimply?

(17)

A.Theyshouldputthemeetingtoanend.

B.Theyshouldholdanothermeetingtodiscussthematter.

C.Shewouldliketodiscussanotheritem.

D.Shewantstodiscusstheissueagainlater.

38.(25)

A.Chemistry.

B.Artappreciation.

C.Business.

D.Fashiondesign.

39.

【B4】

40.

【B11】

三、4.ReadingComprehension(ReadinginDepth)(20題)41.

【C4】

42.

【C5】

43.

Accordingtothepassage,aharmlessrevengeisto______.

A.reacttothosewhobotheryou

B.amusethevictim

C.preventonefromdisturbingothers

D.burtnobodyemotionally

44.

Thechildren'helastparagraph______.

A.canbebestexplainedbybehaviorism

B.canbelinkedtoPavlov'sdogs

C.showsthatrewardsmaywellkilldesire

D.servestoprovideevidencetobehaviorism

45.

【C9】

46.

Whichofthefollowingistrueaccordingtoparagraph2?

A.Itissaidthatonlybigstatesandcitieswillbeindangerthistime.

B.Americanshavenottalkedtoomuchaboutthepossiblethreats.

C.ItissaidthatLosAngelesisparticularlyindangerthistime.

D.TheaimofterroristomakeAmericansfeelunsafewherevertheyare.

47.

Accordingtothepassage,therulechangesarelikelyto______.

A.provide$90billioninfinancialaid

B.costeachfamilyanaverageof$1,000peryear

C.havearippleeffectacrossfederalincometaxes

D.lowertheamountoffinancialaidprovidedbythegovernment

48.SectionB

Directions:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Youshoulddecideonthebestchoice.

Humanismoriginatedinthestudyofclassicalculture,andhumanitiesdisciplinesincludedgrammar,rhetoric,history,poetry,andethics.Thesesubjectswereallstudied,wheneverpossible,intheoriginalclassicaltexts.Thehumanitiescurriculumconflicteddirectlywithmoretraditionaleducationthatwasbasedonscholasticism(經(jīng)院哲學(xué)).Ascholasticeducationconcentratedonthestudyoflogic,naturalphilosophy(science),andmetaphysics,orthenatureofreality.Scholarsoftenclashedsharplyoverthesetwosystemsofeducation.

Underlyingthedifferencesbetweenthesetwophilosophieswasthehumanists'deepconvictionthatsocietyhadoutgrownolderwaysofthought.Accordingtothehumanists,thesewaysofthoughtemphasizedabstractspeculationandreliedtooheavilyonChristianteachings.Manyofthehumanistsweretownspeoplewhowerenotdirectlyassociatedwiththechurch.Theseurbanresidentstendedtoobjecttoaneducationalsystemthatwaslargelymonopolizedbytheclergyandorientedtoclericalneeds.Humanistswereaccustomedtotheever-changing,concreteactivitiesofcitylifeandfoundtherigidandclosedsystemsofabstractthoughttobebothuselessandirrelevant.Insum,humanismreflectedthenewenvironmentoftheRenaissance.Itsessentialcontributiontothemodernworldwasnotitsconcernwithantiquity,butitsflexibilityandopennesstoallthepossibilitiesoflife.

Renaissance(文藝復(fù)興)humanismwascomplex,withfewunifyingfeaturesbeyondacommonbeliefthathumanityandsocietycouldbeimprovedthroughanewkindofeducationbasedonastudyoftheclassics.Humanistsvariedwidelyinthewaystheyappliedtheseideastoareasthatinterestedthem.SomehumanistsweremainlyinterestedinrhetoricandLatinprosestyle,whileothersanalyzedancienttextstodetermineexactmeanings.Onegroupfocusedonwaystoimprovesocietyingeneral,whileChristianhumanismappliedthetechniquesofhumanistscholarshiptothestudyofchurchdocuments,particularlytheBible.

Whywerethehumanitiessubjectsrequiredtobestudiedintheoriginalclassicaltext?

A.Thehumanistsbelievedthatthosetextswerethebestones.

B.Humanismtookitsorigininclassicalworksinmanyfields.

C.Thehumanistsdislikedtheircontemporaryworks.

D.Thehumanistswantedtobedifferentfromscholasticism.

49.

Whatcanweinferfromthelastparagraphofthearticle?

A.Theseverelyfatpatientsarethreatenedwithpotentialillness.

B.Thediet-pillshavebeensoldtoallcomerswithoutdiscrimination.

C.Thediet-pillsshouldnothavebeenhailedasmiraculouscuresandthendiscardedasdangerousdrugs.

D.Thediet-pillswereintendedtoashort-termcurefortheveryfat.

50.Astudyrevealsthatthebrainareasthatrespondwhenfearislearnedthroughpersonalexperienceareal-sotriggeredwhenweseesomeoneelseindistress.

Inthestudy,participantswatchedashortvideoofapersonconditionedtofearaso-calledneutralstimulus-somethingpeoplenormallywouldn'tfear--pairedwithsomethingtheyfindnaturallyaversive(令人討厭的),inthiscaseanelectricalshock.Thepersoninthevideowatchedcoloredsquaresonacomputerscreen:Whenabluesquareappeared,thepersonreceivedamildshock;whenayellowsquareappeared,therewasnoshock.Theparticipantinthevideorespondedwithdistresswhenthebluesquareappeared—hewouldblinkhard,tensehischeekmusclesandmovehishand."Soit'sclearthathe'suncomfortable,he'sindistress,"saidstudyteammemberAndreasOlssonofColumbiaUniversity."Andhe'salreadyindistressbeforehereceivestheshock,youseehimanticipatereceivingtheshock."Bycontrasttheparticipantinthevideoappearedrelaxedwhentheyellowsquarepoppedup,

Participantsweretoldtheywouldtakepartinasimilarexperiment,andwhenpresentedwiththebluesquare,theyrespondedwithfear,anticipatingashock,thoughtheywereneveractuallyshocked."Justbywatching,theylearnthemselves,"Olssonexplained.

Thissecondlearningwasreflectedinthebrain.Inpreviousclassicalconditioningexperimentswhereafearislearnedfirsthand,apartofthebraincalledtheamygdala(扁桃核)hasbeenshowntobecriticaltothedevelopmentandexpressionoffears.Thescientistsmonitoredthebrainactivityofeachparticipantduringtheexperiment.Imagingshowedthattheamygdalarespondedbothwhenthesubjectswatchedthevideoofsomeoneelsereceivingshocksandwhentheywerepresentedwiththebluesquaresthemselves.

"Wefoundthattheamygdalaisinvolvedbothwhenyou'rewatchingsomebodyreceivingshocks,andwhenyou'reexpectingtoreceiveshockslateronyourself,"Olssonsaid.Soitseemsthatsimilarprocessesinthebrainaretriggeredbothwhenfearsareexperiencedfirst-handandwhentheyareobservedinothers.

Intherealworld,thefindingcouldexplainwhysomepeopleareafraidofthingsdespitelittlecontactwiththem."Youlearnbyobservingotherpeople'semotionalexpressions,andwhatweareshowingisthatthatcanbeaseffectiveashavingthosedirectexperiencesyourself,"Olssonsaid."That'sprobablyoneofthereasonswhyalotpeoplearehavingphobias(恐怖癥)ofcertainkindsofstimuli,suchassnakesandspiders."

What'speople'sresponsetoaneutralstimulus?

A.Normallytheyarenotscaredbyit.

B.Usuallytheyareseriouslyscaredbyit.

C.Theyfeelridiculouswhenseeingit.

D.Theyoftenfeeluncomfortableatit.

51.

Whatdoes"gohome"attheendofthesecondparagraphmean?

A.Betakenindiscriminately

B.Begoneunnoticed

C.Betakenforgranted

D.Beperceived

52.(62)

53.

TheauthorsuggeststheDr.Mahathir'scommentsonthecurrencyproblems______.

A.provethathehasbeenapoorleaderingeneral

B.arepoorbecausetheyweakenhisowncredibility

C.aresharpinidentifyingthecauseoftheproblem

D.revealhiskeeninsightintothecomplexissue

54.

Thedramaticincreaseoflandvalueincities______.

A.isadesirableresultofeconomicdevelopment

B.bringsaboutgreateropportunitiesforlanddealers

C.leadtoanefficient,positiveuseoflandintheform.ofverticalgrowth

D.isannoyinglyartificialandmeaningless

55.

Whatdoescomparativelygoodretentionandgraduationratesgenerallymean?

56.Humansontheearthhavehadanover-inflatedviewofhowfartheplanet'satmosphereextendsintospace.Itturnsoutthattheionosphere(電離層),thelayerofelectricallychargedparticlesthatcomprisestheouteratmosphere,isthinnerthanexpected-andcooler.

Understandingtheshapeandsizeoftheionosphereisanimportantfirststepinfiguringouthowparticularlydenseregionswithinitmaydistortradio,radarandnavigationsignals.Suchdistortionscanmakecommunicationsandsatellite-basedsystemslessreliable.

"Inordertopredicthowseverethosedistortionswillbe,it'snecessarytoknowhowbigthosestructuresintheionosphereareandwheretheyexist,"RoderickHellis,withtheSpacesciencesCenterattheUniversityofTexasinDallas,toldDiscoveryNews.

HellisandhiscolleagueshavebeenusingasuiteofNASAinstrumentscalledCINDI,whichflyontheU.S.AirForceCommunication/NavigationOutageForecastSystem(C/NOFS)satellitebetween250milesand530milesaroundtheplanet'sequator.

TheresearchersneverexpectedtoencountertheedgeofEarth'sionosphereatthosealtitudes,butthatisexactlywhathappenedduringthesummerof2008,atimewhenthesolaractivitywasunusuallyweak.

"Itwasarealcombinationoflowsolaractivityandthesatellite'srange,"Hellissaid."Wedidn'texpecttobeabletolookatthetopoftheionosphereinallplaces."Computermodelsbasedonpreviousresearchhadpredictedtheionospheretobeabout370milesaboveEarthatnightandabout620milesupduringtheday--thevariationduetotemperatureandotherfactors.

Instead,theCINDIteamdiscoveredthatthetransitionbetweentheionosphereandspacewasabout250milesaboveEarthatnightandabout500milesupduringtheday.

Theionosphereisprimarilycausedbyextremeultravioletenergyfromthesun.

"It'spowerfulenoughthatthosephotons(光子)canionize(使……電離)atomsinEarth'supperatmosphere,"saidDavidHathaway,asolarphysicistatNASA'sMarshallSpaceFlightCenterinHuntsville,Ala."Whenyouhaveageomagneticdisturbanceorasolarflaregoingoff,youcangetanionospherethatisuneven,whichcancauseproblemswithradiosignalsandGPSsatellitesignals,whichhavetopassthrough."

ThefindingswerepresentedattheannualAmericanGeophysicalUnionconferenceinSanFranciscolastmonth.

CINDIisanacronymforCoupledIonNeutralDynamicsInvestigation.ThedeviceworksbyseparatelymeasuringionizedandneutralparticlesataltitudeswheretheAirForcesatelliteflies.Asimilardeviceisonanotherpolar-orbitingAirForcespacecraft.

TheresearchershopetokeepusingCINDIassolaractivitypicksupinthesun'snew11-yearcycle.Thenextsolarmaximumisexpectedinlate2011or2012.

Wehavealwayshadamisconceptionabout______.

A.howfarawaytheupperedgeoftheionosphereis

B.howmanyparticlescomprisetheionosphere

C.howlongtheionospherehasbeenexisting

D.howtheionosphereextendsintospace

57.ItissurprisingthatAmericanswhowor