2022-2023年江苏省宿迁市大学英语6级大学英语六级

2022-2023年江苏省宿迁市大学英语6级大学英语六级学校:________班级:________姓名:________考号:________

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

Majordepressionsseemtooccuronlytopeoplewhohaveafamilyhistoryofdepression.

A.YB.NC.NG

2.

Itisestimatedthattherewere______workdayslosteachyearduetoemployeedepression.

3.Whatdoestheauthorsuggestdoingwhenwecan'tendureajob?

A.Changingtoanewinstitute.

B.Askingseniorcolleaguesforhelp.

C.Foundingasoundsocialnetwork.

D.Focusingmoreonpositiveoutcomes.

4.

LyubomirskydesignedaSubjectiveHappinessScalebecauseshebelieveditwaseachperson's______thatcanfaithfullyrecordtheirownhappiness.

5.

ThemainmeasuretheforeignteachertakestogetPAIDis______.

6.

Anenhancedversionoftheservicewilluse______technologytogetthevideodatatoviewers.

7.WhereDoDreamsComefrom?

Doyouoftendreamatnight?Mostpeopledo.Whentheywakeinthemorningtheysaytothemselves,"WhatastrangedreamIhad!Iwonderwhatmademedreamthat."

Sometimesdreamsarefrightening.Terriblecreaturesthreatenandpursueus.Sometimes,indreams,wishescometrue.Wecanflythroughtheairorfloatfrommountain-tops.Atothertimeswearetroubledbydreamsinwhicheverythingisconfused.Wearelostandcan'tfindourwayhome.Theworldseemstohavebeenturnedupside-downandnothingmakessense.

Indreamsweactverystrangely.Wedothingswhichwewouldneverdowhenwe'reawake.Wethinkandsaythingswewouldneverthinkandsay.Whyaredreamssostrange?Wheredodreamscomefrom?

Peoplehavebeentryingtoanswerthissincethebeginningoftime.ButnoonehasproducedamoresatisfyinganswerthanamancalledSigmundFreud.One'sdream-worldseemsstrangeandunfamiliar,hesaid,becausedreamscomefromapartofone'smindwhichonecanneitherrecognizenorcontrol.Henamedthisthe"unconsciousmind."

SigmundFreudwasbornaboutahundredyearsago.HelivedmostofhislifeinVienna,Austria,butendedhisdaysinLondon,soonafterthebeginningoftheSecondWorldWar.

Freudwasoneofthegreatexplorersofourtime.Butthenewworldsheexploredwereinsidemanhimself.Fortheunconsciousmindislikeadeepwell,fullofmemoriesandfeelings.Thesememoriesandfeelingshavebeenstoredtherefromthemomentofourbirth—perhapsevenbeforebirth.Ourconsciousmindhasforgottenthem.Wedonotsuspectthattheyarethereuntilsomeunhappyorunusualexperiencecausesustoremember,ortodreamdreams.Thensuddenlyweseeafacewehadforgottenlongago.Wefeelthesamejealousfearandbitterdisappointmentswefeltwhenwewerelittlechildren.

ThisdiscoveryofFreud'sisveryimportantifwewishtounderstandwhypeopleactastheydo.Fortheunconsciousforcesinsideusareatleastaspowerfulastheconsciousforcesweknowabout.Whydowechooseonefriendratherthananother?Whydoesonestorymakeuscryorlaughwhileanotherstorydoesn'taffectusatall?Perhapsweknowwhy.Ifwedon't,thereasonsmayliedeepinourunconsciousminds.

WhenFreudwasachildhewantedtobecomeagreatsoldierandwinhonorforhiscountry.AtthattimeAustriaandGermanywereatwarwitheachother.HisfatherusedtotakeSigmunddowntotherailwaystationtowatchthetrainscomeinfromthebattle-fields.Thetrainswerefullofwoundedsoldiers.Thereweremenwhohadlostaneye,anarmoralegfightinginthewar.Manyofthesoldiersweresufferinggreatpain.

YoungSigmundwatchedthewoundedmenastheyweremovedfromthetrainsintothehay-cartsthatcarriedthemtothehospital.Hewasverysorryforthem.Hepitiedthemsomuchthathesaidtotheteacherathisschool,"Letusboysmakebandagesforthepoorsoldiersasoursistersinthegirls'schooldo."

Eventhen,Freudcaredaboutthesufferingsofothers,soitisn'tsurprisingthathebecameadoctorwhenhegrewup.Likeotherdoctorshelearnedallaboutthewayinwhichthehumanbodyworks.Buthebecamemoreandmorecuriousaboutthehumanmind.HewenttoParistostudywithafamousFrenchdoctor,Chareot.Chareot'sspecialstudywasdiseasesofthemindandnerves.

Atthattimeitseemedthatnooneknewverymuchaboutthemind.Ifapersonwentmad,or'outofhismind',therewasnotmuchthatcouldbedoneaboutit.Therewaslittlehelporcomfortforthemadmanorhisfamily.Peopledidn'tunderstandatallwhatwashappeningtohim.Hadhebeenpossessedbyadevilorevilspirit?WasGodpunishinghimforwrongdoing?Oftensuchpeoplewereshutawayfromthecompanyofordinarycivilized

A.YB.NC.NG

8.

Sportsstadiumsnowbecomesasourceofnoisepollutionbecauseof______.

9.Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.

Forquestions1—4,mark

Y(forYES)ifthestatementagreeswiththeinformationgiveninthepassage;

N(forNO)ifthestatementcontradictstheinformationgiveninthepassage;

NG(forNOTGIVEN)iftheinformationisnotgiveninthepassage.

Forquestions5—10,completethesentenceswiththeinformationgiveninthepassage.

GENETICALLYMODIFIEDFOODS

Aregeneticallymodifiedcropsanenvironmentaldreamcome-trueoradisasterinthemaking?Scientistsarelookingforanswers.

Theworldseemsincreasinglydividedintothosewhofavorgeneticallymodified(GM)foodsandthosewhofearthem.Advocatesassertthatgrowinggeneticallyalteredcropscanbekindertotheenvironmentandthateatingfoodsfromthoseplantsisperfectlysafe.And,theysay,geneticengineeringwhichcaninduceplantstogrowinpoorsoilsortoproducemorenutritiousfoodswillsoonbecomeanessentialtoolforhelpingtofeedtheworld'sburgeoningpopulation.SkepticscontendthatGMcropscouldposeuniqueriskstotheenvironmentandtohealthriskstootroublingtoacceptplacidly.Takingthatview,manyEuropeancountriesarerestrictingtheplantingandimportationofGMagriculturalproducts.Muchofthedebatehingesonperceptionsofsafety.Butwhatexactlydoesrecentscientificresearchsayaboutthehazards?Theanswers,toooftenlostinreportsonthecontroversy,areservedupinthepagesthatfollow.

TwoyearsagoinEdinburgh,Scotlandeco-vandalsstormedafield,crushingcanolaplants.LastyearinMaine,midnightraidershackeddownmorethan3,000experimentalpoplartrees.AndinSanDiego,protesterssmashedsorghumandsprayedpaintovergreenhousewalls.

Thisfar-flungoutragetookaimatgeneticallymodifiedcrops.Buttheprotestsbackfired:allthedestroyedplantswereconventionallybred.Ineachcase,activistsmistookordinaryplantsforGMvarieties.

It'seasytounderstandwhy.Inaway,GMcrops—nowonsome109millionacresoffarmlandworldwide—areinvisible.Youcan'tsee,tasteortouchageneinsertedintoaplantorsenseitseffectsontheenvironment.Youcan'ttell,justbylooking,whetherpollencontainingaforeigngenecanpoisonbutterfliesorfertilizeplantsmilesaway.Thatinvisibilityispreciselywhatworriespeople.How,exactly,willGMcropsaffecttheenvironment-andwhenwillwenotice?

AdvocatesofGM,ortransgenic,cropssaytheplantswillbenefittheenvironmentbyrequiringfewertoxicpesticidesthanconventionalcrops.Butcriticsfearthepotentialrisksandwonderhowbigthebenefitsreallyare."Wehavesomanyquestionsabouttheseplants,"remarksGuentherStotzky,asoilmicrobiologistatNewYorkUniversity."There'salotwedon'tknowandneedtofindout."

AsGMcropsmultiplyinthelandscape,unprecedentednumbersofresearchershavestartedfanningintothefieldstogetthemissinginformation.Someoftheirrecentfindingsarcreassuring;otherssuggestaneedforvigilance.

FewerPoisonsintheSoil?

EveryyearU.S.growersshowercropswithanestimated971millionpoundsofpesticides,mostlytokillinsects,weedsandfungi.Butpesticideresidueslingeroncropsandthesurroundingsoil,leachingintogroundwater,runningintostreamsandgettinggobbledupbywildlife.Theconstantchemicaltrickleisanoldworryforenvironmentalists.

Inthemid-1990sagribusinessesbeganadvertisingGMseedsthatpromisedtoreduceafarmer'suseoftoxicpesticides.TodaymostGMcrops—main

A.YB.NC.NG

10.ManyruralregionsinEurope,suchastheGreekvillageofPrastos,areplaguedwithenvironmentalhazardsasmoreandmorefieldslayunattended.

11.

Inancienttimes.athletesWhoshowexcellentskillsinsportscouldbeentitledto______.

12.

Bothfearsexpresstheconvictionthatgrowthinonepartoftheworldmustsomehowcome______.

13.

ChineseimmigrantstoHawaiifoundthatthey______.

A.weretreatedwithoutdiscrimination

B.wereprovidedwithfewerjobchoices

C.couldn'ttraveltomainlandAmerica

D.couldonlyliveorworkinChinatown

14.

Whyisitsohardtodiagnosetheautism?

A.Becausetherestillexistsnotestfordiagnosisbynow.

B.Becausediagnosisofthesameautismcasesaredifferent.

C.Becausescientistsmakenoprogressinuncoveringthegeneticfactors.

D.Becausenoneofthesignsofautismisobvioustobediagnosed.

15.

AsinthestoryofMickey,AmyandJoey,agossipmaycause______tothegossiped.

16.Thereleaseoflargequantitiesofthegreenhousegasmethaneaspermafrostmeltswillspeedup______.

17.

Peopleresumedtheirinterestinnaturalgasasafuelasaresultof__________________ofthelate1960sandearly1970s.

18.

AccordingtothereportbytheRoyalSociety,moretrainingin______wasnecessaryforscientists.

19.TheInterview

AttheDemobilizationCentre,aftertheusualroundofmedicalinspection,returnofserviceequipment,andissueofallowancesandcivilianclothing,Ihadbeeninterviewedbyanofficerwhosejobwastoadviseoncareers.OnlearningthatIhadasciencedegreeandvariedexperienceinengineeringtechnology,heexpressedtheopinionthatIwouldhavenodifficultyinfindingagoodcivilianjob.Industrywasreorganizingitselfforpost-warproductionandtherewasalreadyanurgentdemandforqualifiedtechnologists,especiallyinthefieldofelectronics,whichwasmyspecialinterest.Ihadbeenverymuchencouragedbythis,asIhadmadeapointofkeepingupwithnewtrendsanddevelopmentsbyborrowingbooksthroughtheCentralLibrarySystem,andbysubscribingtovarioustechnicaljournalsandmagazines,soIfeltquiteconfidentofmyabilitytoholddownagoodjob.HehadgivenmealetterofintroductiontotheHigherAppointmentsOfficeinTavistockSquare,London,andsuggestedthatIcallonthemassoonasIhadsettledmyselfin"digs"andhadenjoyedashortholiday...

Shortlyaftermyreturn,IvisitedtheAppointmentsOffice,whereIwasinterviewedbytwocourteous,impersonalmenwhoquestionedmecloselyonmyacademicbackground,servicecareerandexperienceinindustry.IexplainedthataftergraduatingIhadworkedfortwoyearsasaCommunicationEngineerfortheStandardOilCompanyattheirArubaRefinery,earningenoughtopayforpostgraduatestudyinEngland.AttheendoftheinterviewtheytoldmethatIwouldbenotifiedofanyvacanciessuitabletomyexperienceandqualifications.TwoweekslaterIreceivedaletterfromtheAppointmentsOffice,togetherwithalistofthreefirms,eachofwhichhadvacanciesforqualifiedCommunicationEngineers.Ipromptlywrotetoeachone,statingmyqualificationsandexperience,andsoonreceivedveryencouragingreplies,eachwithaninvitationtoaninterview.EverythingwasworkingverysmoothlyandIfeltontopoftheworld.

IwasnervousasIstoodinfrontoftheHeadOfficeinMayfair;thisfirmhadahighinternationalreputationandthethoughtofbeingassociatedwithitaddedtomyexcitement.Anyway,Ireasoned,thiswasthefirstoftheinterviews,andifIfailedheretherewerestilltwochancesremaining.Theuniformedattendantpolitelyopenedthelargedoorsforme,andasIapproachedthereceptionist'sdeskshesmiledquitepleasantly.

"Goodmorning."Herbrowswereraisedinpoliteenquiry.

"Goodmorning,"Ireplied,"MynameisBraithwaite.IamhereforaninterviewwithMr.Symonds."

Ihadtakenagreatdealofcarewithmyappearancethatmorning.Iwaswearingmybestsuitwiththefightshirtandtieandpockethandkerchief;myshoesweresmartlypolished,myteethwerewellbrushedandIwaswearingmybestsmile--allthishadpassedtheverycriticalinspectionofMr.andMrs.BelmontwithwhomIlived.ImightevensaythatIwasquiteproudofmyappearance.Yetthereceptionist'ssmilesuddenlydisappeared.Shereachedforalargediaryandconsulteditasiftoverifymystatement,thenshepickedupthetelephoneand,cuppingherhandaroundthemouthpieceasifforgreaterprivacy,spokerapidlyintoit,watchingmestealthilythewhile.

"Willyoucomethisway?"Shesetoffdownawidecorridor,herbackstraightandstiffwithadisapprovalwhichwasechoedinthetap-tapofherhighheels.

Attheendofthecorridorweenteredanautomaticlift;thegirlmaintainedasilenthostilityandavoidedlookingatme.Atthesecondfloorwesteppedoutintoapassageontowhichseveralroomsopened;pausingbrieflyoutsideoneofthemshesaid"Inthere,"andquicklyretreatedtothelift.Iknockedonthedoorandenteredaspaciousroomwherefourmenwereseatedatalargetable.

A.YB.NC.NG

20.

RobertSubbaramanrecentlypublishedaninclusivereportregardingChina'seconomy,polities,societyandforeignpolicybyhimself.

A.YB.NC.NG

二、3.ListeningComprehension(20题)21.

【B4】

22.(17)

A.Shemoansthemanshouldgiveuppreparingthelessons.

B.Shemeansthemanshouldpreparethemoreimportantlessons.

C.Shemoansthemanshouldgetupearlytopreparehislessons,

D.Shemeansthemanistooexhaustedtopreparethelessons.

23.【B3】

24.听力原文：M:Whydoyouthinkthatway?

W:WhileIadmitthereisverylittlediscriminationhereoncampustowardsorientation,appearanceandnationality,womenarenottreatedequally.Womenarenotrepresentedinmanyfaculties.Theyalsoholdfewerseniorfacultypositions,arenotrepresentedwellinadministrationand,doyouknow,notoncehasthembeenafemalepresidentofthestudentunion.

M:Youarerunningforpresidentofthestudentunionontheissueofequality,butyouarenotgoingtobeawinner,Isuppose.Moststudentsfeelwomenhaveequalitynowadays.

W:NotthestudentsIhavetalkedto,particularlythewomen.Mybrotherisalawyerandhesaysthewomeninhisfirmhavetoworkmuchharderthanthemeniftheywanttobecomeapartnerinthefirm.

M:Soyouaregoingtochampionwomen'srightsfortheelection.

W:Yes,mycampaignwillfocusonthatbutIwillnotignoreotherissuessuchastransportation,cafeteriasandsoon.Ihavebeenastudentherelot4yearsandamawareofalltheissues.IfIcanmakethiscampusabetterplaceforallstudents,thenasawoman,Iwouldbesettinganexcellentrolemodel.And,IamsureIcandoabetterjobthanJerrydidthisyear.

M:WhatdidJerryaccomplishthisyear?

W:Nexttonothing.Heputpressureonthecafeteriastobealittlemoreenvironmentallyfriendlybutthatisallaboutit.

(20)

A.Toprovewomen'sdiligence.

B.Toseekgenderequalityoncampus.

C.Toimprovetransportationandaccommodation.

D.Toputpressureonmalestudents.

25.听力原文：M:IthoughtthatyouweregoingtotheconventioninAtlantalastSaturday.Yousaiditmanytimesbefore.

W:Iwasplanningto,butIhaven'tbeenfeelingwell,soIstayedathomeanddidnothingelse.

Q:WherewasthewomanlastSaturday?

(16)

A.InAtlanta.

B.Ataconventioncentre.

C.Inahospital.

D.Athome.

26.(26)

A.She'sastudentstayingwiththeMcDonalds.

B.She'llpayforthecourseshetakesbycreditcard.

C.Sheenrolledonacourseimmediately.

D.She'sinsuredifshebecomesamemberoftheclub.

27.(14)

A.Heisboredwiththetour.

B.Heisfacingfinancialcrisis.

C.HemustattendameetingonMonday.

D.HedislikesmeetingpeopleonMonday.

28.(34)

A.Doingphysicalexercises.

B.Eatinghigh-fatfoods.

C.Drinkingalcohol.

D.Smoking.

29.听力原文：W:Theadmissionpriceis$90perperson.That'sreallyexpensiveforjustoneshow.

M:You'reright.Butifyouhaveastudentcard,you'llgetinfor$30.

Q:Howmuchwillastudenthavetopayfortheshow?

(17)

A.Sixtydollars.

B.Thirtydollars.

C.Ninetydollars.

D.Onehundredandtwentydollars.

30.(25)

A.Thedinosaurswentextinct.

B.AnumberofmeteoritescrashedintoEarth.

C.Someanimalspeciesevolved.

D.Someplantswentextinct.

31.

【B8】

32.(32)

A.Checkyournumberandcallagain.

B.Asktheoperatortoputyouthrough.

C.Asktheoperatorwhathashappened.

D.Telltheoperatorwhathashappened.

33.SectionA

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

听力原文：W:Howdoyoufindyournewapartment?

M:Well，it'squitenicereally,althoughIhaveahardtimegettingusedtolivinginabigplace.

Q:Whatistheman'sproblem?

(12)

A.Hecan'tfindhisnewapartment.

B.Hehadabiggerapartmentbefore.

C.Hefindsthenewapartmenttoobig'forhim.

D.He'slookingforanapartment.

34.听力原文：Uptoabout1915,movieswereshortandprogramsweremadeupofseveralworks.Then,D.U.Griffithandothersbegantomakelongerfilmswhichprovidedthesamepowerfulemotionalappealasdidmelodramaandpresentedspectaclesfarbeyondwhatthetheatercouldoffer.Consequently,afterWorldWarIincreasingnumbersofspectatorsdesertedthetheaterforthemovies.Thistrendwasacceleratedinthelate1920'sasaresultoftwonewelements.In1927soundwasaddedtothepreviouslysilentfilm,andthusoneofthetheater'sprincipalclaimstosuperiorityvanished.In1929aseriouseconomicdepressionbegan.Sinceaudiencecouldgotothemoviesforafractionofwhatitcosttoseeaplay,theatergoingbecamealuxurywhichfewcouldafford,especiallyasthedepressiondeepened.

BytheendofWorldWar1I,theAmericantheaterhadbeenreducedtoaboutthirtytheatersinNewYorkcityandasmallnumberoftouringcompaniesoriginatingthere.

(30)

A.Filmsprovidedmoremelodrama.

B.Filmsprovidedlongerprograms.

C.Filmsprovidedemotionalappeal.

D.Filmsprovidedgreaterspectacles.

35.SectionC

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

听力原文：Advertisingisaform.ofselling,forthousandsofyearstherehavebeenindividualswhohavetriedtopersuadeotherstobuythefoodtheyhaveproducedorthegoodstheyhavemadeortheservicestheycanperform.

Butinthe19thcenturythemassproductionofgoodsresultingfromtheIndustrialRevolutionmadeperson-to-personsellinginefficient.Themassdistributionofgoodsthatfollowedthedevelopmentofthehighwaymadeperson-to-personsellingtooslowandexpensive.Atthesametime,masscommunication,firstnewspapersandmagazines,thenradioandtelevision,mademasssellingthroughadvertisingpossible.

Theobjectiveofanyadvertisementistoconvincepeoplethatitisintheirbestgainstotaketheactiontheadvertiserisrecommending.Theactionmaybetopurchaseaproduct,useaservice,voteforapoliticalcandidate,oreventojointheArmy.

AdvertisingasabusinessdevelopedfirstandmostrapidlyintheUnitedStates,thecountrythatusesittothegreatestextent.In1980advertisingexpenditureintheU.S.exceeded55billiondollars,orapproximately2percentofthegrossnationalproduct.Canadaspentabout1.2percentofitsgrossnationalproductonadvertising.

Whileadvertisingbringstheeconomiesofmasssellingtothemanufacturer,itproducesbenefitsfortheconsumeraswell.Someofthoseeconomiesarepassedalongtothepurchasersothatthecostofaproductsoldprimarilythroughadvertisingisusuallyfarlessthanonesoldthroughpersonalsalespeople.Advertisingbringspeopleimmediatenewsaboutproductsthathavejustcomeonthemarket.Finally,advertisingpaysfortheprogramsoncommercialtelevisionandradioandforabouttwothirdsofthecostofpublishingmagazinesandnewspapers.

Advertisingisaform.ofselling.Forthousandsofyearstherehavebeenindividualswhohavetriedto(36)______otherstobuythefoodtheyhaveproducedorthegoodstheyhavemadeortheservicestheycan(37)______.

Butinthe19thcenturythemassproductionofgoods(38)______fromtheIndustrialRevolutionmadeperson-to-personsellinginefficient.Themass(39)______ofgoodsthatfollowedthedevelopmentofthehighwaymadeperson-to-personsellingtooslowand(40)______.Atthesametime,masscommunication,firstnewspapersandmagazines,thenradioandtelevision,mademasssellingthrough(41)______possible.

Theobjectiveofanyadvertisementistoconvincepeoplethatitisintheirbestgainstotaketheactiontheadvertiseris(42)______.Theactionmaybetopurchaseaproduct,useaservice,voteforapolitical(43)______,oreventojointheArmy.

(44)____________.In1980advertisingexpenditureintheU.S.exceeded55billiondollars,orapproximately2percentofthegrossnationalproduct.Canadaspentabout1.2percentofitsgrossnationalproductonadvertising.

(45)____________.Someofthoseeconomiesarepassedalongtothepurchasersothatthecostofaproductsoldprimarilythroughadvertisingisusuallyfarlessthanonesoldthroughpersonalsalespeople.Advertisingbringspeopleimmediatenewsaboutproductsthathavejustcomeonthemarket.(46)____________.

36.(36)

A.Talkers.B.Thespeakeasy.C.Thespacemaker.D.Texters.

37.

【B9】

38.(24)

A.Papertowels,napkins,bagsandboxes.

B.Artbooksandotherhigh-qualityprintedmatter.

C.Insulationforbasements.

D.Imitationwood.

39.

【B2】

40.(35)

A.Awhale.B.Asnail.C.Asnake.D.Ahuman.

三、4.ReadingComprehension(ReadinginDepth)(20题)41.Whatdoweknowabouttheswinefluvirusfromthelastparagraph?

A.Itisnotquitesureifitcanspreadamongpersons.

B.Itisnotquitesurehowitistransmitted.

C.Surelyitistransmittedbysneezingorcoughing.

D.Surelyitistransmittedbyskincontact.

42.

Inthispassage,theauthor'stoneandattitudetowardsthedesignandaccomplishmentoftheSydneyOperaHouseis______.

A.highlycritical

B.coldandobjective

C.sympatheticyetreserved

D.positiveandappreciative

43.

TherelationshipbetweenIndiansandthewhiteswascompletelydestroyedbythebattleat______.

44.

LloydMemorialHighSchool'sexperimentationwiththeideaofsingle-sexclass______.

A.wascarriedoutinallclassesofallgrades

B.primarily,aimedtoimprovetheboys'reading

C.wasregardedtobeasuccessbothbyteachersandparents

D.wereconfrontedwithobjectionfromthestudents

45.

WelearnfromthepassagethatthedifferenceinpaybetweenthelowestpaidandtheaverageworkerinAmericais______thanthatinotherindustrializedcountries.

46.

Thelargestportionofchildren'stelevisionviewingtimeisspent______.

A.watchingweatherreport

B.playinggamesonthetelevisionset

C.watchingadultprogramsduringtheevening

D.watchingeducationalprogram

47.

Whatdoestheauthorthinkaboutthephrase"savetheplanet"(Paragraph1)?

48.

InMarch,beekeepersprepareformigrationatnightwhenthehivesare______andthebeesaregenerallytranquil.

49.

Highlysophisticatedelectronickeysystemsarecommonlyequippedto______.

50.Spaceenthusiastslooktothedaywhenordinarypeople,aswellprofessionalastronautsandmembersofCongress,canleaveEarthbehindandheadforaspacestationresort,ormaybeabaseonthemoonorMars.TheSpacetransportationAssociation,anindustrylobbyinggroup,recentlycreatedadivisiondevotedtopromotingspacetourism,whichitseesasapossiblewaytospureconomicdevelopmentbeyondEarth.

Thegreatstumblingblockinthisroadtostars,however,isthesheerdifficultyofgettinganywhereinspace.Merelyachievingorbitisanexpensiveandriskyproposition.Currentspacepropulsion(推进)technologiesmakeitastretchtosendprobestodistantdestinationswithinthesolarsystem.Spacecrafthavetofollowmultiyear,indirectpathsthatlooparoundseveralplanesinordertogainvelocityfromgravityassists.Thenthecraftlacktheenergytocomeback.Sendingspacecrafttoothersolarsystemswouldtakemanycenturies.

Fortunately,engineershavenoshortageofinventiveplansfornewpropulsionsystemsthatmightsomedayexpandhumanpresencebeyondthisplanet.Someaxeradicalrefinementsofcurrentrocketorjettechnologies.Othersharnessnuclearenergiesorwouldrideonpowerfullaserbeams.Eventheequivalentsof"spaceelevators"forhoistingcargoesintoorbitareonthedrawingboard.

"ReachloworbitandyouarehalfwaytoanywhereintheSolarSystem,"science-fictionauthorRobertA.Heinleinwrote,andvirtuallyallanalystsagreethatinexpensiveaccesstolow-Earthorbitisvitalfirststep,becausemostpossiblesituationsforexpandinghumankind'sreachdependontheorbitalassemblyofmassivespacecraftorotherequipment,involvingmultiplelaunches.

Theneedforbetterlaunchsystemsisalreadyimmediate,driven,byprivateandpublicsectordemand.Mostcommercialpayloads(有效荷载)aredestinedeitherforthenowcrowdedstationaryorbit,wheresatellitespushforelbowroom36,000kilometersabovetheequator,orforlow-Earthorbit,justafewhundredkilometersup.Low-Earthorbitisrapidlybecomingaspaceenterprisezone,becausesatellitesthatclosecantransmitsignalstohandheldreceivers.Scientificpayloadsarealsotakingoffinabigway.Morethan50majorobservatoriesandexplorationstoothersolarsystemsbodieswillliftoffwithinthe