河北省秦皇島市公共英語五級(筆試)重點匯總（含答案）

河北省秦皇島市公共英語五級(筆試)重點匯總（含答案）學(xué)校:________班級:________姓名:________考號:________

一、1.ListeningComprehension(15題)1.Whichpowerdoesthemansuggest?

A.Waterpower.

B.Windpower.

C.Solarpower.

D.Electronicalpower.

2.聽力原文：M：DidyouhearabouttheaircrashthatoccurredinSouthAmericarecently?Itwasquiteatragicaccident!

W：No,Ididn'tseeanythinginthenewsaboutit．Whathappened?

M：AforeignairlinerwasattemptingtolandatnightinamountainousareainArgentinaandflewintoahill!

W：Thatsoundsreallyterrible!Didanyonesurvive?

M：No，everyoneaboard，includingthecrew，waskilledinstantly．

W：Whatwerethecircumstances?Weretheybadweather,afire,orenginefailure?

M：Apparently，thereweresomelowcloudsinthearea，butmostlyitwasjustmiscommunicationbetweenthepilotsandtheairtrafficcontrollers．

W：Weren'ttheybothspeakinginEnglish，theofficialinternationalaviationlanguage?

M：Yestheywere，butthetransitionfrompoorqualityradioswasslightlydistortedandtheaccentsoftheSpanishspeakingcontrollerswassostrongthatthepilotsmisunderstoodavitalinstruction．

W：Howcouldamisunderstandinglikethatcausesuchaseriousaccident?

M：Thepilotsweretoldtodescendto22,000feet．Theinstructionactuallymeant22,000feet，buttheythoughttheyhearddescend2,000feet．That'sahugedifference．a(chǎn)nditshouldhavebeenconfirmed．butitwasnot．Unfortunately，theterrainofthemountainsinNorweijaascendto2,000feet．

W：Sothepilotsdiddescendtothewrongaltitudethen，becausetheywerefollowingtheaircontroller'sinstructions．

M：Sadlyenough，yestheydid．Itwasareallybadmistake．Manypeoplediedasaresultofthesimplymisunderstanding．

W：Wow，that'sapowerfullessononhowimportantitcanbetoaccuratelycommunicatewitheachother．

Whatwasthecauseofthetragedy?

A.Badweather.

B.Humanerror.

C.Breakdownoftheengines.

D.Communicationssystemfailure.

3.Theirschemeisbasedonthepremisethatallpeoplehaveabasicwayof______．

4.Inwhataspectsdoesthespeakerthinkalloftheseculturalchangesarestrengthened?

5.PartC

Directions:Youwillhearatalk.Asyoulisten,answerthequestionsorcompletethenotesinyourtestbookletforQuestions21-30bywritingNOTMORETHANTHREEwordsinthespaceprovidedontheright.YouwillhearthetalkTWICE.

Younowhave1minutetoreadQuestions21-30.

聽力原文：Thetenyearsofthe1960swasaperiodofprofoundchangeinmanypartsoftheworld.IntheUnitedStates,beginningwiththeCivilRightsMovementintheearly1960s,andextendingthroughtheVietnamWar,millionsofAmericansbegantochallengeestablishedauthority.Thesemovementswereinitiallypolitical.YoungAmericansdemandedthatgovernmentalpoliciesinracerelationsandinternationalrelationscorrespondtotheidealsofjusticecontainedintheDeclarationofIndependenceandtheConstitutionoftheUnitedStates.Bytheendofthedecade,however,challengestoauthoritywerecarriedfarbeyondpoliticalissuesandweredirectedatthesocialorderanddeeplyrootedculturalpatternsofthecountry.

Thegenerationthatcameofageinthe1960s,theBabyBoomgeneration,soughtchangeinalmosteveryaspectoflifeintheUnitedStates.Forexample,theyexperimentedwithcooperativeeconomicinstitutionsandcommunallivingarrangements,brokesexualtaboos,alteredtheprocessofeducation,explorednon-Westernspiritualtraditions,developedastrongrespectfortheenvironment,andtransformedpopularculture.Asawhole,thesechangesstoodforadifferentsetofculturalvaluesthatprovidedathoroughcritiqueofAmericansocietyasitexistedatthattime.Althoughmany"alternativelifestyles"wereshort-lived,culturalchangesthatbeganinthatperiodhavehadacontinuingeffectonmuchofAmericanlife,particularlyinattitudestowardmale-femalerelations.

Allculturesarecomplex.Theyareacombinationofcloselyrelatedpatternsofsocialinteraction.Asaresult,changesinanimportantaspectofaparticularculturewillusuallyproducechangesthroughoutthesociety.TheWomen'sMovementthatbeganintheUnitedStatesduringthe1960sisatypicalexampleofthisphenomenon.Fromthebeginning,theWomen'sMovementwasinfluencedbyculturalchangesthathadoccurredearlierinthedecade.TheCivilRightsMovementforracialequalityandthedevelopmentofthebirthcontrolpillwereparticularlyimportant—theCivilRightsMovementbecausewomeninvolvedintheeffortforracialjusticebegantoseethemselvesasvictimsofsocialinjustice,andthebirthcontrolpillbecauseitgavewomenreliablecontroloverreproduction.

Social,economic,andlegalequalityandreproductiverightscontinuetobethebasicprinciplesoftheWomen'sMovement.Assomeofthesegoalshavebeenachieved,majorchangeshaveoccurredinbroaderculturalpatternssuchastheeconomyandthefamily.Atthepresenttime,mostofAmericanwomenareemployed.Employmentisnolongerconfinedtosuchtraditionalfemaleoccupationsasteacher,nurse,orsecretary.Womenarenowfoundineveryoccupationandatalllevelsofresponsibilityandauthority.Participationintheeconomyhasgivenmanywomenanindependencethathasallowedthemtochoosewhether,when,andhowtoform.afamily.Workingwomenwithinfamiliesnowarepartofaneconomicpartnershipwithmeninwhichbothadultsprovidesupportforthefamilyunitandareresponsibleforthequalityoflife.

TheWomen'sMovementhasaffectedtherelationshipbetweenmenandwomeninthefamilyinotherwaysaswell.Womenhavechallengedtraditionalsexrolesinthehousehold.Menarenowexpectedtoparticipateinchild-raisinganddomesticactivitiestoamuchgreaterextentthaninthepast.Childbearingisnowamatteroffamilychoice,withwomenhavingthefinaldecisioninfamilyplanning.

Alloftheseculturalchangesarestrengthenedinboththemediaandint

6.Studentscanenjoyasimplebookingandenrolmentprocedureinsomechains.

A.RightB.Wrong

7.PartC

Directions:Youwillhearatalk.Asyoulisten,answerthequestionsorcompletethenotesinyourtestbookletforQuestions21-30bywritingNOTMORETHANTHREEwordsinthespaceprovidedontheright.YouwillhearthetalkTWICE.

Younowhave1minutetoreadQuestions21-30.

聽力原文：Todaywetakeitforgrantedthatthemailwillbedelivereddailyatourdoor.Butmanyyearsagoitmighthavebeenplacedinatreetrunkorunderneatharock.Intheearlydaysofthemailnoonecouldbesureaboutwhereorwhenitwouldarrive.

AtthesoutherntipofAfricatherewasonceapostofficeunderarock.IntheolddaystheroutefromEnglandtoIndiawasaroundtheCapeofGoodHope.Thejourneywasstormyanddangerous.Ittooksixlongmonths.Sailorsoftenwishedtosendmailhome,buttheyseldommetshipsboundbacktoEngland.Soatthecapethesailorswouldgoashore.Theyheadedforacertainlargestone.Onthestonewerescratchedthewords"Lookhereunderforletters."Theywouldleavetheirlettersthere,knowingthatthenexthomeward-boundshipwouldstopandpickthemup.

TherewasanotherpostofficelikethisatthesoutherntipofSouthAmerica.Duringthegoldrushdays,boatssailedaroundCapeHorntoCalifornia.AtCapeHornwasakegnailedtoapost.Boatscomingfromtheeastcoastwouldsendasmallboatashoretothispostoffice.Theypickedupanylettersinthekeg.Atthesametimetheymailedlettershomethatboatssailingeastcouldpickup.

InthestateofWashingtonstandsthestumpofahugecedar.It,too,wasonceapostoffice.Settlersneededaplaceforthemailcarrierstoleavetheirletters.Theirhousesweresowidelyscatteredthatthemailcarriercouldnotreachallofthem,andthepostofficewasfarawayoverroughroads.Sothesettlersfoundatreethatstoodwhereseveraltrailscrossed.Theycutthetreedowntenfeetfromtheground,holloweditout,andcovereditwitharoof.Inside,theynailedarowofwoodenboxes.Eachboxwasmarkedwithafamily'sname.Themailcarriercouldleavelettersthereforeveryoneformilesaround.

ForthefirstfewyearsaftertheEnglishcolonistscametoAmerica,therewasnoregularpostalservice.Peoplegavetheirletterstoanytravelerwhohappenedtobegoingintherightdirection.Oftentheygavethemtoapeddleroratravelingshoemaker.Whenthetravelerreachedthetownwheretheletterwasgoing,hemightstopataninn.Hewouldleavethelettersthere.Buttheretheystayeduntilthepersontheywereaddressedtohappenedtocomebyandstoppedattheinn.

WhataboutplaceslikeVirginiawheretherewereveryfewinns?Peoplewhowishedtosendletterswouldleavethematoneofthelargeplantations.Theownersoftheplantationwouldthensendthelettersontoaneighbor.Theneighborwoulddothesame.Itwasaslowmailsystem.

Aftermanyyears,regularmailcarriersonhorsebackwerehired.Theywentfromonebigtowntoanother.BetweenNewYorkandBoston,forexample,therewasone"postrider"amonth.Hetraveledonlybydayandtooktwoweeksforthetrip.Oftenthepostriderleftallthemailforawholetownatacrossroadsstore.Itstilltookmanyweeksforalettertoreachthepersonitwasaddressedto.

Finally,abouttwohundredyearsago,BenjaminFranklinwasmadepostmasterforallthecolonies.Hisfirstactwastomakealongjourneytofindoutthebestroutesforcarryingthemail.Thenhesetupalineofpoststationbetweenthenorthernandsoutherncolonies.Heorderedhispostriderstotravelbynightaswellasbyday.

Franklin'spostriderscouldcarrymorelettersinashortertimefromonecolonytoanother.TheletterservicehelpedtheyoungAmericancolonieslearnmoreabouteachother.Theylearnedthattheywereallinterestedin

8.Whatisthecharacteristicofspecialtygoods?

A.Theyaregoodsthatcanbeboughtataspecialprice.

B.Theyarespecialkindsofproducts.

C.Theyarecharacterizedintheirbrands.

D.Theyneedspecialeffortstoget.

9.WhichofthefollowingstatementsisNOTTRUE?

A.Gettingofftoworkwithaminimumefforthelpssaveone'senergy.

B.Dr.Kleimanexplainswhypeoplereachtheirpeaksatdifferenthoursofaday.

C.Habithelpsapersonadapttohisownenergycycle.

D.Childrenhaveenergycycles,too.

10.聽力原文：Inthefieldofmarketing,consumergoodsareclassedaccordingtothewayinwhichtheyarepurchased.Thetwomaincategoriesareconveniencegoodsandshoppinggoods.Twolessertypesarespecialtygoodsandunsoughtgoods.

Peopledonotspendmuchtimeshoppingforconvenienceitemssuchasgroceries,newspapers,toothpaste,razorblades,aspirin,andcandy.Thebuyingofconveniencegoodsmaybedoneroutinely,assomefamiliesbuygroceriesonceaweek.Suchregularlypurchaseditemsarecalledstaples.Sometimesconvenienceproductsareboughtonimpulse,forexample,someonehasasuddendesireforanicecreamsundaeonahotday.Ortheymaybepurchasedasemergencyitems.

Shoppinggoodsareitemsforwhichcustomerssearch.Theycompareprices,quality,andstyles,andmayvisitanumberofstoresbeforemakingdecisions.Buyinganautomobileisoftendonethisway.

Shoppinggoodsfallintotwoclasses:thosethatareperceivedasbasicallythesameandthosethatareregardedasdifferent.Itemsthatarelookeduponasbasicallythesameincludesuchthingsashomeappliances,televisionsets,andautomobiles.Havingdecidedonthemodeldesired,thecustomerisprimarilyinterestedingettingtheitematthemostfavorableprice.Itemsregardedasinherentlydifferentincludeclothing,furniture,anddishes.Quality,style.andfashionwilleithertakeprecedenceoverprice,ortheywillnotmatteratall.

Specialtygoodshavecharacteristicsthatimpelcustomerstomakespecialeffortstofindthem.Pricemaybenoconsiderationatall.Specialtygoodscanincludealmostanykindofproduct.Normally,specialtygoodshaveabrandnameorotherdistinguishingcharacteristics.

Unsoughtgoodsareitemsaconsumerdoesnotnecessarilywantorneedormaynotevenknowabout.Promotionoradvertisingbringssuchgoodstotheconsumer'sattention.Theproductcouldbesomethingnewonthemarketoritmaybeafairlystandardservice,suchaslifeinsurance,forwhichmostpeoplewillusuallynotbothershopping.

Accordingtothespeaker,whatareconveniencegoods?

A.Commoditiesthatpeopleareinconstantneedof.

B.Goodsthatareconvenienttouseorpurchase.

C.Itemsthatpeopletendtobuyunderimpulse.

D.Itemsthathavetobeboughtonceaweek.

11.Allchainscanofferstudentsthesametypeofcourseindifferentplaces.

A.RightB.Wrong

12.PartC

Directions:Youwillhearatalk.Asyoulisten,answerthequestionsorcompletethenotesinyourtestbookletforQuestions21-30bywritingNOTMORETHANTHREEwordsinthespaceprovidedontheright.YouwillhearthetalkTWICE.

Younowhave1minutetoreadQuestions21-30.

聽力原文：Lasttimewestartedlookingatthequestionofmanagementandwonderingwhatthetermactuallymeant．Thenwetookabrieflookattheconceptofscientificmanagement．Youremember，wedecideditwasusefulbutnotenoughonitsown．Sotodaywe'regoingtolookatanotheraspect—behavioralmanagement．Youmaynotreallyhavecomeacrossthisword“behavioral”before．thoughI'msureyouarefamiliarwiththeword“behavior”．Behavioralsimplymeanshavingtodowithbehavior．Andthatisourstartingpointfortoday：Wearegoingtostartbyrealizingthattheactivityofanyorganizationishumanactivity，designedtoachievehumangoals．Sowearereallytalkingabouthumanbehavior．

Anybusinessconcerndoestwothings．First，itprovideseithergoodsorservicesthatthecustomerneeds．Thatis．iteithermakesthingsordoesthingsforotherpeopleinexchangeformoney．Second，itprovidespeoplewithwork—andmostofushavetoworkinordertomakealiving．

Work，muchaswemaysometimeswishwedidn'thavetodoit，ornotquitesomuchofit．hasinfacttwoadvantages．First—andIspokeaboutthislasttime—itcangiveussatisfaction．Wecanbeproudofwhatwearedoing—likeacraftsmanmakingsomethingbeautiful，oradoctorofanursehelpingpeoplewhoareillorinpain．ThisiswhatIcalledjobsatisfaction，andwithoutitIamsureworkcanbecomeanawfulburden．Andonamorebasiclevel，workearnsusmoney，whichwecanusetobuythethingsweneedinordertolive．likefoodandsomewheretolive，aswellasalltheluxurieswecouldprobablydowithoutbutstillliketohave．

Behavioralmanagementisbasedonaresearchofhowpeoplebehaveatwork．Itusesthefindingsofpsychologistsandsociologists，andsoon．Thesemakeastudyofindividualsandgroupstoseewhatthingsinfluencethewaytheybehaveindifferentconditions．Theresultscanthenbeusedtodesignthebestconditionsinwhichpeoplewillperform—orbehave—inthewaythatamanagerwantsthemtoinordertomakeabusinessmoreefficientandtoachieveitsgoals．Theyhavecollectedalotofevidenceandformulatedalotoftheoriestohelpthemanager，andthereisnodoubtthatproperlyunderstoodandapplied，thiscanbeveryuseful．

Butstillwereturntothefactthatpeopleareindividuals．a(chǎn)lldifferentfromeachother，andall—aswesay—withmindsoftheirown．Sonomatterwhatthemanagerknowsaboutthewaypeoplebehaveingroupsandsoon，hehasreallytotreateveryoneonhisstaffasanindividualinhisownright．Ofcourse，hecanbehelpedinthisbyknowinghowtoencouragepeopletodothings，howtostimulatethemtobehaveinacertainway，andsoon．Amanagercanhimselfbemighthowtodothis，buthoweverunscientificthismaysound，itismorelikelythatagoodmanagerisbornratherthantrained．Hehassomenaturalabilitytorecognizewhatpeoplearelikelytodo，whatabilitiestheyhave，andotherthingslikethat．Realizingthis，andthenapplyingwhathehaslearnedabouthumanbehavior，iswhatmakessomeoneagoodmanager．

Sobehavioralmanagementismanagementbasedonanassessmentofanindividualandtheapplicationofwhatisknownabouthowpeopleingeneraltendtobehave．Likescientificmanagement，itisundoubtedlyuseful，butnot，thecompleteanswer．

Whatdidthespeakertalkaboutlasttime?

13.PartA

Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.

聽力原文：Goodmorning!

Um...AsManagingDirectorofourcompanyI'vebeenaskedtosayafewwordstoyoutodayaboutthewaythecompanyisorganized.SowhatI'vedoneistomakeasortoftable...youknow...toshowhowitisallarranged.It'sinyourbooks.Canyoufindit?

OK.Now,notallcompaniesareorganizedinthesameway,ofcourse.Theyallhavemoreorlessthesamebitsandpieces,buttheyputthemtogetherindifferentways.Infact,someManagingDirectorsarealwayschangingtheorganization,whichcanbeverydisturbingforeverybodyelseandsometimescausesawfulhold-ups.Sometimesit'snecessary,ofcourse,likewhenyoustartmakingsomethingdifferentorjoinupwithanothercompanyorsomething.Anyway,Ithinktheorganizationofmycompanyisfairlytypical,solet'stakealookathowwehaveorganizedit.

Atthetopofthescheme,aboveme,istheBoardofDirectors.Theirjobistoadministratethecompany,makegeneralpolicies,andsoon.Therearetwokindsofdirectors,actually.Onekindiswhatwecallnon-executivedirectors,whichmeansthattheyarenotfull-timeemployees.Theyarethesortofpeoplewhohavesomestandinginvariouspartsofthebusinessworldandareinapositiontohelpthecompanytosucceed.TheyonlyappearwhentherearemeetingsoftheBoard,andsomeofthemareontheboardsofothercompaniesatthesametime.Butthesecondlotofdirectors—theexecutivedirectors—arefull-timeemployeesofthecompany.Mostofthemaremanagersofourvariousdepartments,andyou'llbemeetingthemlater.

Theabsoluteheadofthecompany,ofcourse,istheChairmanoftheBoard.HeisappointedbytheBoard,andhisjobistotakethechairatmeetingsoftheshareholdersandtheBoardofDirectors,andtorepresentthecompany'sinterestsatoutsidefunctions.Hedoesnottakemuchpartintherunningofthebusiness.Heleavesmetogetonwiththejob.Mindyou,notallchairmenarelikethat.Ourlastonewasarealpain,alwayswantedeverythingdonehisownwayandhekeptoninterfering...butanyway,that'swhatthetopslotintheschemeisfor.

Thenthere'sme,theManagingDirector,orMDforshort—aslongasyoudon'tthinkI'madoctorofmedicine,haha...Um...Now,myjobistocoordinatethepoliciesdecidedbythedirectorsandseethattheyarecarriedout.Idothisthroughthevariousmanagersofdepartments—departmentalmanagers.AtthemomentI'vegotsix,andthereareslotsforthemalongthelineunderneathmeinyourscheme.Idon'tthinktheyareinanyparticularorder,sowe'llstartfromtheleftandwalkacross.Actually,they'reallgoingtocomeandtellyouabouttheirjobs.SoI'lljustsayafewwords.And...Right.Thefirstoneis...

Thespeechismainlyabouttheorganizationofthecompany.

A.TrueB.Fasle

14.Calories,naturalfood,mountainsandthedistancefrommodemcitiesaretheonlycommonthingsinthethreeregions.

A.RightB.Wrong

15.WhatdoesthespeakersayaboutLowTillFanning?

A.It'sanewwayofapplyingchemicalfertilizer.

B.It'sanimprovedmethodofharvestingcrops.

C.It'sacreativetechniqueforsavinglabor.

D.It'safanningprocesslimitingtheuseofplows.

二、2.UseofEnglish(10題)16.(35)

17.

【C20】

18.(47)

19.(49)

20.

【C4】

21.

【C3】

22.

【C14】

23.(37)

24.

【C19】

25.(32)

三、3.ReadingComprehension(15題)26.(67)

27.PartB

Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.

Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66～70,choosethemostsuitableparagraphfromthelistA～Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.

Fromhervantagepointshewatchedthemaindoorsswingopenandthefirstarrivalspourin.Thosewhohadbeenattheheadofthelinepausedmomentarilyonentry,lookedaroundcuriously,thenquicklymovedforwardasothersbehindpressedin.Withinmomentsthecentralpublicareaofthebigbranchbankwasfilledwithachattering,noisycrowd.Thebuilding,relativelyquietlessthanaminuteearlier,hadbecomeaBabel.Edwinasawatallheavysetblackmanwavesomedollarbillsandannounceloudly,"Iwanttoputmymoneyinthebank."

66.______

Itseemedasifthereportabouteveryonehavingcometoopenanaccounthadbeenaccurateafterall.

Edwinacouldseethebigmanleaningbackexpansively,stillholdinghisdollarbills.Hisvoicecutacrossthenoiseofotherconversationsandsheheardhimproclaim,"I'minnohurry.There'ssomethingI'dlikeyoutoexplain."

Twootherdeskswerequicklymannedbyotherclerks.Withequalspeed,longwidelinesofpeopleformedinfrontofthem.

Normally,threemembersofstaffwereampletohandlenewaccountbusiness,butobviouslyinadequatenow.EdwinacouldseeTottenhoeonthefarsideofthebankandcalledhimontheintercom.Sheinstructed,"Usemoredesksfornewaccountsandtakeallthestaffyoucansparetomanthem."

67.______

Tottenhoegrumbledinreply,"Yourealizewecan'tpossiblyprocessallthesepeopletoday,andhowevermanywedowilltieusupcompletely."

"I'vegotanidea,"Edwinasaid,"that'swhatsomeonehasinmind.Justhurrytheprocessingallyoucan."

68.______

First,anapplicationform.calledfordetailsofresidence,employment,socialsecurity,andfamilymatters.Aspecimensignaturewasobtained.Thenproofofidentitywasneeded.Afterthat,thenewaccountsclerkwouldtakealldocumentstoanofficerofthebankforapprovalandinitialing.Finally,asavingspassbookwasmadeoutoratemporarycheckbookissued.

Thereforethemostnewaccountsthatanybankemployeecouldopeninanhourwerefive,sothethreeclerkspresentlyworkingmighthandleasumofninetyinonebusinessday,iftheykeptgoingattopspeed,whichwasunlikely.

69.______

Stillthenoisewithinthebankincreased.Ithadbecomeanuproar.

Afurtherproblemwasthatthegrowingmassofarrivalsinthecentralpublicareaofthebankwaspreventingaccesstotellers'countersbyothercustomers.Edwinacouldseeafewofthemoutside,regardingthemillingscenewithconsternation.Whileshewatched,severalgaveupandwalkedaway.

Insidethebanksomeofthenewcomerswereengagingtellersinconversationandthetellers,havingnothingelsetodobecauseofthemelee,chattedback.Twoassistantmanagershadgonetothecentralfloorareaandweretryingtoconductthefloodofpeoplesoastoclearsomespaceatcounters.Theywerehavingsmallsuccess.

70.______

Shedecideditwastimeforherownintervention.

Edwinalefttheplatform.andafailed-offstaffareaand,withdifficulty,madeherwaythroughthemillingcrowdtothemainfrontdoor.

A.Yetsheknewhowevermuchtheyhurrieditwouldstilltaketentofifteenminutestoopenanysinglenewaccount.Italwaysdid.Thepaperwo

28.(72)

29.Beforeabigexam,asoundnight'ssleepwilldoyoubetterthanporingovertextbooks.That,atleast,isthefolkwisdom.Andscience,intheform.ofbehavioralpsychology,supportsthatwisdom.Butsuchbehavioralstudiescannotdistinguishbetweentwocompetingtheoriesofwhysleepisgoodforthememory.Onesaysthatsleepiswhenpermanentmemoriesform.Theothersaysthattheyareactuallyformedduringtheday,butthen"edited"atnight,toflushawaywhatissuperfluous.

Totellthedifference,itisnecessarytolookintothebrainofasleepingperson,andthatishard.Butafteradecadeofpainstakingwork,ateamledbyPierreMaquetatLiegeUniversityinBelgiumhasmanagedtodoit.TheparticularstageofsleepinwhichtheBelgiangroupisinterestedisrapideyemovement(REM)sleep,whenbrainandbodyareactive,heartrateandbloodpressureincrease,theeyesmovebackandforthbehindtheeyelidsasifwatchingamovie,andbrainwavetracesresemblethoseofwakefulness.Itisduringthisperiodofsleepthatpeoplearemostlikelytoreliveeventsofthepreviousdayindreams.

Dr.MaquetusedanelectronicdevicecalledPETtostudythebrainsofpeopleastheypracticedataskduringtheday,andastheysleptduringthefollowingnight.Thetaskrequiredthemtopressabuttonasfastaspossible,inresponsetoalightcomingoninoneofsixpositions.Astheylearnthowtodothis,theirresponsetimesgotfaster.Whattheydidnotknowwasthattheappearanceofthelightssometimesfollowedapattern—whatisreferredtoas"artificialgrammar".Yetthereductionsinresponsetimeshowedthattheylearntfasterwhenthepatternwaspresentthanwhentherewasnot.

Whatismore,thosewithmoretolearn(i.e.the"grammar",aswellasthemechanicaltaskofpushingthebutton)havemoreactivebrains.The"editing"theorywouldnotpredictthat,sincethenumberofirrelevantstimuliwouldbethesameineachcase.Andtoeliminateanydoubtsthattheexperimentalsubjectswerelearningasopposedtounlearning,theirresponsetimeswhentheywokeupwereevenquickerthanwhentheywenttosleep.

Theteam,therefore,concludedthatthenerveconnectionsinvolvedinmemoryarereinforcedthroughreactivationduringREMsleep,particularlyifthebraindetectsaninherentstructureinthematerialbeinglearnt.Sonow,ontheeveofthatcrucialtest,mathsstudentscansleepsoundlyintheknowledgethatwhattheywillrememberthenextdayarethebasicrulesofalgebraandnottheincoherenttalkfromtheradionextdoor.

Researchersinbehavioralpsychologyaredividedwithregardto______.

A.howdreamsaremodifiedintheircourses

B.thedifferencebetweensleepandwakefulness

C.whysleepisofgreatbenefittomemory

D.thefunctionsofagoodnight'ssleep

30.

Inpolitics,astronautsaregenerally______.

A.democratsB.republicansC.conservativesD.communists

31.(73)

32.

Fromth