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2022-2023年浙江省丽水市大学英语6级大学英语六级学校:________班级:________姓名:________考号:________

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

CuttingbudgetforscienceresearchanddevelopmentfurthersmothersincentivesforAmericanstudentsto______.

2.

InsomeEasterncountries,face-to-facemeetingsarefavoredtoworkthroughtheconflicts.

A.YB.NC.NG

3.

Awebsiteisachannelthroughwhichcompaniescanpromotetheirproductsandcompete______.

4.Canadahadtototallybanfishingineastcoastwatersintheyearof______.

A.1975B.1980C.1990D.1992

5.

HenrikChristensenismostconcernedaboutwhetherrobotsare______.

A.harmlessB.powerfulC.intelligentD.durable

6.

Thefinaljudgmentwasthateveryoneinvolvedshouldgetathirdofthefish.

A.YB.NC.NG

7.

Doctorswhotreatdepressionwilldistinguishmajordepressionanddysthymiaandtreatthemdifferently.

A.YB.NC.NG

8.

Hightea,thetypicalmealinScotlandandmanypartsofnorthernEngland,istaken______.

A.lateintheevening

B.asthesubstituteforteaandlunch

C.ataboutsixo'clockintheevening

D.onlybythetourists

9.Thepropertemperatureforstoringbooksis______.

10.WhatdoesthechairmanofVodafoneJohnBondthinkofbanks?

A.Theycanhardlygetprofitoutofsmallpayments.

B.Theymaydisappearinthenearfuturejustlikecash.

C.TheyhavegreatlychangedvillagelifeinAfrica.

D.Theyholdaprimaryroleinthemoney-transferbusiness.

11.

Thefirstuseoftheterm"organicfarming"isusuallycreditedto______inhis1940book,LooktotheLand.

12.PartⅡReadingComprehension(SkimmingandScanning)

Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,choosethebestanswerfromthefourchoicesmarked[A],[B],[C]and[D].Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.

7HealthProblemsfortheModernAge

Modernlife,withitsemphasisoninformation,automation,computerization,andglobalization,hasmadeworkeasierandgivenusmoreleisureoptions,butwenowhaveawholehostofnewhealthproblems.Onlytimewilltellifthesemodernhealthproblemsdisappearlike8-tracktapesandrotaryphones.Untilthen,herearesomeofthenewmaladieswehaveinstoreforus.

ComputerVisionSyndrome

Ifyouspendalldaystaringatacomputerscreen,youmaybeatriskforcomputervisionsyndrome(CVS),alsocalledoccupationalasthenopia(弱视的).CVSencompassesalleyeorvision-relatedproblemssufferedbypeoplewhospendalotoftimeoncomputers.AccordingtotheAmericanOptometricAssociation,symptomsofCVSincludeheadaches;dry,red,orburningeyes;blurredordoublevision;troublefocusing;difficultydistinguishingcolors;sensitivitytolight;endevenpainintheneckorback.Asmanyas75percentofcomputerusershavesymptomsofCVSduetoglare,poorlighting,andimproperworkstationsetup.ToovercomeCVS,keepyourmonitorabouttwofeetawayfromyouandsixinches.beloweyelevel,andbesureit'sdirectlyinfrontofyontominimizeeyemovement.Adjustlightingto,removeanyglareorreflections.Youcanalsoadjustthebrightnessonyourmonitortoeaseeyestrain.Evensimplestepscanhelp,likelookingawayfromyourmonitorevery20or30minutesandfocusingonsomethingfartheraway.Andyoucanalwaysuseeyedropstoperkupyourpeepers!

Earbud-relatedHearingLoss

Earbudsaretheheadphonesusedwithmanydigitalmusicplayers.Theyfitinsidetheearbutdon'tcanceloutbackgroundnoise,requiringuserstoturnupthevolume,oftento110to120decibels--loudenoughtocausehearinglossafteronlyanhourend15minutes.Andtoday,peoplespendmuchmoretimelisteningtotheirportableplayers,exposingthemselvestodamagingnoiseforlongerperiodsoftime.Asaresult,youngpeoplearedevelopingthetypeofheatinglossnormallyseeninmucholderadults.Expertsrecommendturningdownthevolumeandlimitingdieamountoftimespentlisteningtomusicplayerstoaboutanhouraday.Headphonesthatfitoutsidetheearcanalalsohelp,ascannoise-cancelingheadphonesthatreducebackgroundnoisesolistenersdon'thavetocrankupthevolume.

E-thrombosis

Thisconditionisrelatedtodeepveinthrombosis(血栓症),wherebloodclotsform.indeepveins,suchasthoseinthelegs.Theseclotscanbefataliftheymigratetothelungsandcauseapulmonaryembolism.Clotscanform.whenbloodsupplyslowsorstops,suchasinaperiodofprolongedimmobility.Similarly,e-thrombosisisthedevelopmentofclotsinthedeepveinsofsomeonewhospendslongamountsoftimeinfrontofacomputerwithoutmoving.Althoughonlyahandfulofe-thrombosiscaseshavebeenreported,millionsofpeoplewhospendmostoftheirtimeinfrontofacomputerareatrisk.Avoidinge-thrombosisissimple:standupandmovearoundeveryhour,tapyourtoeswhileyouwork,putequipmentendsuppliesindifferentpartsofyourworkareasoyouhavetomovetogetthem,don'tcrossyourlegswhilesittingatyourdesk,don'tspendyourlunchbreakatyourdesk(goforaquickwalkinstead),anddon'tgettoocomfortable--ifyourworkspaceisultra-cozy,youwon'twanttogetup.

GeneralizedAnxietyDisorder

Weallhaveworries,uncertaintie

A.dry,red,orburningeyesandblurredordoublevision

B.glare,poorlightingandimproperworkstationsetup

C.notkeepingtheirmonitortwofeetawayfromthem

D.notusingacomputerthatprotectstheireyes

13.CommonFaultsandEyeMovement

Thereareanumberofbadhabitswhichpoorreadersadopt.Mostoftheseinvolveusingextrabodymovementinthereadingprocess.Inefficientreading,themusclesoftheeyeshouldmaketheonlyexternalmovement.Ofcoursetheremustbevigorousmentalactivity,butextrabodymovements,suchaspointingwiththefingerormovingthelips,donothelpreadingandoftenslowitdown~

POINTINGATWORDS

Afaultthatisoftenseenwhenstudentsaretryingtoconcentrateispointingtothewordswithafinger,pencilorruler.Youngchildrenandverypoorreadersoftenpointwithafingerateachwordinmm.Slightlymorematurereaderssometimesholdapencilorrulerunderneaththelinewhichtheyarereading.Whilemarkingthelinemightbehelpfulforbeginningreaders,itiscertainlyunnecessaryfornormalreaders.Besidesslowingdownthereaderthrough-themeremechanicalmovementofpencil,ruler,orfinger,pointingatlinesorwordstendstocausethestudenttofocushisattentiononthewrongthing.Theimportantthingtoconcentrateonwhilereadingistheidea.thattheauthoristryingtocommunicate,andnotthelocationofthewordsonthepage.Theeyesofanychildoldenoughtolearnhowtoreadarecertainlyskillfulenoughtobeabletofollowalineofprintwithoutextrahelpfromfingersorrulers.

Anothercommonfaultthatiseasilyobservedisheadmovement.Thismostoftenoccurswhenstudentsarenervousabouttheirreadingortryinghard,asduringareadingspeedtest.Withheadmovementthestudenttriestoaimhisnoseatthewordheisreadingsothatashereadsacrossthelinehisheadturnsslightly.Whenhemakesthereturnsweeptobeginanewlinehisheadquicklyturnsbacksothathisnoseispointedattheleft-handmargin,andhecannowbegintoreadthenewlinebyslowlyturninghishead.Thebeliefthatthisheadmovementaidsreadingispurenonsense.Eyemusclesarequitecapableofshiftingtheeyesfromwordtoword,andtheyneednohelpfromneckmuscles.

Oftenstudentsarequiteunawarethattheyaremovingtheirheadswhilereadingandtheyneedtoberemindedbytheteachernottodoit.

VOCALIZATION

Vocalizationisanotherfault.Somepoorreadersthinkitnecessarytopronouncealoudeachwordasitisread.Usuallythispronunciationisquitesoft,sothatthestudentismorewhisperingtohimselfthanactuallyreadingaloud,buteventhisisveryundesirable.Thechiefdisadvantageofpronouncingwordswhileyoureadthemisthatittendstotiereadingspeedtospeakingspeed,andthesilentreadingofmostnormalreadersisnearlytwiceasfastastheirspeaking.Usuallythisfaultcanbeeliminatedinolderstudentsbytheirownconsciouseffort,possiblywiththeaidofafewremindersfromtheteacher.

Vocalizationbybeginningreadersisacommonfault;afterareaderreachessomematurityitbecomesveryundesirable.

Vocalizationtakesvariousmodifiedforms.Sometimesareaderwillmerelymovehislipssoundlessly.Atothertimeshemaymaketongueorthroatmovementswithoutlipmovement.Stirotherreaderswillhaveactivitygoingonintheirvocalcords,whichcanbedetectedbythestudentifheplaceshisfingersalongsidehisvocalcordsinthethroatwhileheisreading.Vocalcordvibrationcanbefeltwiththefingersquiteeasily.Liketruevocalization,theseminorpartsof"subvocalization"—lipmovement,tongueorthroatmovementandvocalcordmovement—canbestoppedbyconsciouseffortofthestudent.

SUBVOCALIZATION

Subvocalizationisthemostdifficultofalltypesofvocalization.Insubvocalizationthereisnobodymovement.Thelips,tongueorvocalcordsdonotmove.Butaninnertypeofspeechpersists:withinthestudent'smindheissayingeachwordtohimself,clearlyprono

A.YB.NC.NG

14.

Fromhisfindings,Hayhasestablishedsomeflexibleguidelinesforparentsofidenticaltwins.Onesuggestionisforparentsto______sothatcontactwithotherchildrenwill______acceleratelanguagedevelopment.

15.

Epiphytes,whichform.muchoftheunderstoryoftherainforest,getalltheirwaterandnutrientsfrom______.

16.

Besidesmakingbuildingsandworksofart,Mayasachievedgreataccomplishmentson______.

17.

There'slittleagreementonwhatintermarriagewillmeanforU.S.societyinthefutureasthereisalackofofficialnumbers,aheightenedtensionsurroundingracialissues,andthemutualsuspicionthatexistsamongdifferentracialgroups.

A.YB.NC.NG

18.

UserswithIADoftenfinditdifficulttogetalongintheirwork.

A.YB.NC.NG

19.

Wilcox'sfatherhadoccasionallysoldtherelicsfoundinhislandsince19

A.YB.NC.NG

20.

TheKyotoProtocolrequires____--tocurbGHGemissions,especiallyCO

二、3.ListeningComprehension(20题)21.(26)

A.Theyusuallyacceptresponsibility.

B.Theyblamefactorsbeyondtheircontrol.

C.Theycomplainabouttheirpersonalproblems.

D.Theycomparetheirbehavior.toothers.

22.(36)

A.Indifferent.B.Surprised.C.Worried.D.Confident.

23.(32)

A.Theycompetewitheachother.

B.Theydogoodtoeachother~

C.Theyfocusondifferentnews.

D.Theywilldieout.

24.(29)

A.Rapidpopulationgrowth.

B.Corruptcitygovernment.

C.Realestatespeculators.

D.Lackofimmigrationquotas.

25.听力原文:Scientistssaysharkshavelivedintheworld'soceansformillionsofyears.Scientistssaytherearemorethanthree-hundred–fiftydifferentkindsofsharks.

Sharksdonothavebones,andasharkhasanextremelygoodsenseofsmell.Itcanfindsmallamountsofsubstancesinthewater,suchasblood,bodyliquidsandchemicalsproducedbyanimals.Sharksalsosenseelectricalandmagneticpowerlinkedtonervesandmusclesoflivinganimals.Thesepowerfulsenseshelpthemfindtheirfood.Somesharkswilleatjustaboutanything.Manyunusualthingshavebeenfoundinthestomachsofsometigersharks.Theyincludeshoes,dogs,acow'sfootandmetalprotectiveclothing.

Aboutfortypercentofthedifferentkindsofsharkslayeggs.Theothersgivebirthtoliveyoung.Somesharkscarrytheiryounginsidetheirbodieslikehumansdo.

Scientistsarebeginningtounderstandtheimportanceofsharkstohumans.Medicalresearcherswanttolearnmoreabouttheshark'sbodydefensesystemagainstdisease.Theyknowthatsharksrecoverquicklyfrominjuries.Sharksappearnevertosufferinfections,cancerorheartdiseases.

(33)

A.Callonpeopletoprotectsharks.

B.Pointoutthelivingenvironmentofsharks.

C.Explainwhythesharksaredangerous.

D.Anintroductiontosharks.

26.(18)

A.Thewomanlikesarguing.

B.Thewomanshouldgetajob.

C.Thewomanshouldworkinafactory.

D.Thewomanspendstoomuchmoney.

27.(31)

A.Bysendingwaterdirectlybacktotheseawithgreatforce.

B.Byreducingwaveenergy.

C.Byreducingbeachwidth.

D.Bystabilizingbeachfrontconstruction.

28.(24)

A.It'sfartooexpensive.

B.TheservicebetweenLondonandAberdeenisn'tfrequent.

C.Shethinksit'sdangerous.

D.Forsomereasonshedoesn'tlikeflying.

29.

【B3】

30.

【B2】

31.SectionC

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

Alotofpeoplethinkthatsittingis【B1】______ontheirbacksthanstandingorlifting.Nottrue.Peoplewhosejobsrequirethemtositforlongperiodsoftime【B2】______asmuchfrombackpainaspeoplewholiftalldaylong.Manyworld-classresearchersbelievethatthehuge【B3】______inbackpainoverthepastcoupleof【B4】______—anditishuge--hasalottodowiththefactthatmoreandmoreofusarespendingourworkdaysinchairs.Manypeoplehavethe【B5】______that,iftheirbackpaingetsbadenough,theycanalwaysresortto【B6】______.Nothingcouldbefurtherfromthetruth.Theamountofpainsomeoneisinhasverylittletodowithwhetherornotheorshecould【B7】______fromsurgery.OneBritishresearcherhas【B8】______thatforevery10,000peoplewhoexperienceaboutbackpain,onlyfourneedsurgery.【B9】______.Nolonger.Twoorthreedaysofbed-restisnowthenorm.Afterthat,peopleareadvisedtoreturntotheirnormalactivities,graduallyifnecessary.Thereasonsforthe180°shiftarewhat'sinteresting.Foropeners,【B10】______.Inournextlecture,weshalllookattherelationbetweendepressionandchronicbackpain.【B11】______.

【B1】

32.听力原文:Therearemanyfamousmuseumsthroughouttheworldwherepeoplecanenjoyart.WashingtonD.C.hastheNationalGalleryofArt;ParishastheLouvre.FloridaInternationalUniversityinMiamialsodisplaysartforpeopletosee.Anditdoessowithoutabuilding,orevenawallforitsdrawingsandpaintings.

FloridaInternationalUniversityhasopenedwhatitsaysthefirstcomputerartmuseumintheUnitedStates.Youdon'thavetovisittheuniversitytoseetheart.Youjustneedacomputerlinkedtoatelephone.

Youcallthetelephonenumberofauniversitycomputerandconnectyourowncomputertoit.Alloftheartisstoredintheschoolcomputer.Itiscomputerart,createdelectronicallybyartistsontheirowncomputers.Inonlyafewminutes,yourcomputercanreceiveandcopyallthepicturesanddrawings.

RobertShostakisdirectorofthenewcomputermuseum.Hesayshestartedthemuseumbecausecomputerartistshadnoplacetoshowtheirwork.

Acomputerartistcouldonlyrecordhispictureselectronicallyandsendtherecords,ordiscs,tootherstoseeontheircomputers.Hecouldalsoputhispicturesonpaper.Buttoprintgoodpicturesonpaper,thecomputerartistneededanexpensivelaserprinter.

RobertShostaksaystheelectronicmuseumismostlyforartorcomputerstudentsatschoolsanduniversities.Mostofthepicturesinthemuseumaremadebystudents.MisterShostaksaystheFloridaInternationalUniversitymuseumwillmakecomputerartmorefunforcomputerartistsbecausemorepeoplecanseeit.Hesaysartistsenjoytheirworkmuchmoreiftheycanhaveanaudience.AndthegreatnumberofhomecomputersinAmericacouldmeanahugeaudiencefortheelectronicmuseum.

(33)

A.InParis.B.InLondon.C.InMiami.D.InWashingtonD.C.

33.(22)

A.Residentstherecan'tgohomedirectlybybus.

B.Thehousesaretooexpensivetoafford.

C.Peopletherearesomehowunreasonable.

D.It'stooremotetosendforacabthere.

34.(43)

35.

【B7】

36.(23)

A.Professorandstudent.

B.Classmates.

C.Customerandshopassistant.

D.Colleagues.

37.听力原文:M:IwassurprisedtoseeEdinthejobcentertoday.Doyouthinkhe'sunhappyoveradmissions?He'saboutthebestworkertheyhaveoverthere.

W:Iknow,butIhearthathisboss'sneversaidathingtohimtoacknowledgethat.Andhowwouldyoufeelifyou'dbeentherefiveyearsandstillhadthesamesalary?

Q:WhatdoesthewomanimplyaboutEd'sformerboss?

(19)

A.Thebosswasveryconsideratetohisworkers.

B.Edwasn'tasgoodaworkerasthebossthought.

C.ThebosshadplannedtogiveEdaraiseinsalary.

D.Thebosshasneverconsideredraisingtheworkerssalary.

38.听力原文:In1789theU.S.governmentpassedalawwhichsaidthatthelandoftheAmericanIndianscouldneverbetakenfromthemwithouttheiragreement.Onehundredyearslater,however,theIndiansonlyhadaverysmallpartofthelandthatoriginallybelongedtothem.Howdidthisgreatinjusticeoccur?

After1812,whitesettlersbegantomovewestacrossNorthAmerica.Atfirst,thesettlersandtheIndianslivedinpeace.However,thenumberofsettlersincreasedgreatlyeveryyear,(32)andslowlytheIndiansbegantoseethewhitesettlersasadangertotheirsurvival.Tofeedthemselves,thesettlerskilledmoreandmorewildanimals.TheIndians,whodependedontheseanimalsforfood,(33)hadtostruggleagainststarvation.TheSettleralsobroughtwiththemmanydiseaseswhichwerecommoninwhitesociety,butwhichwerenewfortheIndians.GreatnumbersofIndiansbecamesickanddied.Between1843and1854theIndianpopulationinoneareaofthecountrywentdownfrom100000to30000.

MorelandwasneededfortheIncreasingnumberofwhitesettlers.InWashington,theoldrespectfortherightsoftheIndiansdisappeared.TheoldpromisestotheIndianswerebroken,thefederalgovernmentbegantomovegroupsofIndiansfromtheiroriginalhomelandstootherpoorerpartsofthecountry.(34)SomeIndiansreactedangrilyandviolentlytothistreatment.Theybegantoattackwhitesettlers.AndtheIndianWarsbegan.Forthirtyyears,untilthelate1880s,differentgroupsofIndiansfoughtagainsttheinjusticesofthewhiteman.ManyIndianswerekilled,thesurvivorsweremovedfromtheirhomelandstodifferentareasofthecountry.(35)Itwasaterriblechapterinthehistoryofacountrythatpromisedfreedomandequalitytoeveryone.

(33)

A.Whenthewhitesettlersbegantomovewestin1812.

B.Whentheincreasingwhitesettlersbegantokillwildanimals.

C.WhenmanyIndiansbegantodiefromthediseases.

D.Whenthewhitesettlerswantedtooccupytheland.

39.听力原文:25yearsago,RayAnderson,asingleparentwithaoneyear-oldsonwitnessedaterribleaccidentwhichtookplacewhenthedriverofatruckranaredlightandcollidedwiththecarofSandraJankins.TheimpactofthecollisionkilledSandrainstantly.Butherthree-month-olddaughterwaslefttrappedintheburningcar.Whileotherslookedoninhorror,Andersonjumpedoutofhisvehicleandcrawledintothecarthroughtheshadowedmarwindowtotrytofreetheinfant.Secondslater,thecarwasenclosedinflames.Buttoeveryone'samazement,Andersonwasabletopullthebabytosafety.Whilethebabywasallright,Andersonwasseriouslyinjured.Twodayslaterhedied.Buthisheroicactwaspublishedwidelyinthemedia.Hissonwassoonadoptedbyrelatives.Themostremarkablepartofthestoryunfoldedonlylastweek.KarenandherboyfriendMichaelwerelookingthroughsomeoldboxeswhentheycameacrosssomeoldnewspaperclippings."ThisismewhenIwasanewbornbaby.Iwasrescuedfromaburningear.Butmymotherdiedintheaccident,"explainedKaren.AlthoughMichaelknewKaren'smotherhaddiedyearsearlier,heneverfullyunderstoodthecircumstancesuntilheskimmedoverthenewspaperarticle.ToKaren'ssurprise,Michaelwasabsorbedinthedetailsoftheaccident.Andhebegantocryuncontrollably.ThenherevealedthatthemanthatpulledKarenfromtheflameswasthefatherheneverknew.Thetwoembracedandshedmanytears,recountingstoriestoldtothemabouttheirpatens.

(29)

A.Michael'sparentsgotdivorced.

B.KarenwasadoptedbyRayAnderson.

C.Karen'smotherdiedinacaraccident.

D.Atruckdriverlosthislifeinacollision.

40.听力原文:W:Stevecalledtoseewhetherwecangivehimalifttothebeachthisweekend.

M:Well,I'llseetothat,butwhetherornotwe'llhaveanyroomforhimisunclear.

Q:Whatdoesthemanmean?

(18)

A.HewillseeStevesoon.

B.Heisafraidtheweatherwillnotbeclear.

C.Heisnotsureiftherewillbeenoughspace.

D.HeisnotsureifhecanfindaroomforSteve.

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

Howwouldanurbaninhabitantusuallyrentacarinthepasteightyears?

42.

Whatdoestheword"education"inthefirstparagraphmean?

A.susceptibilitytotheenvironment

B.advanceinthescaleofevolution

C.complicatedinstinctsofanimals

D.formativeinfluenceoftheenvironment

43.

Thewriterofthearticlewas,undoubtedly______.

A.alinguistB.anattorneyC.ascientistD.anessayist

44.

WhatcanweinferfromParagraph2?

A.Somefamiliesaretoopoortopaythefulltuition.

B.Theparentsdonotfavortheform.ofloans.

C.Payingthetuitionmakestheparentsfeelhumble.

D.Thoseingreatneedmaynotgettheaid.

45.

Theauthorfounditthemostembarrassingthat______.

A.hehadtopracticethepoeminfrontoftheclass

B.hehadtoputfeelingandemotionintothepoem

C.hismistakeswerepointedoutbyMr.Priestley

D.hispracticewasappreciatedbyMr.Priestley

46.

Itcanbeinferredfromthepassagethatpublicservices______.

A.havebenefitedmanypeople

B.arethefocusofpublicattention

C.haveoftenbeenthelaughingstock

D.areaninappropriatesubjectforhumor

47.

Tobeelectedas______wasClinton'sfirstsuccessfulstepofpoliticalcareer.

48.

Whywastheauthor'sfirstteacherfired?

49.

Fromthelasttwoparagraphs,weknowthat______.

A.theviolencewebsitepeddlersfeelsorryforthefamily'sloss

B.itispossibletopreventchildrengetaccesstotheviolenceporn

C.therehasbeenanexpandingconcernaboutothers'privacy

D.theauthorfeelspositiveabouttherebeingnorulesintheInternetworld

50.

WhowasSusanSliwak?

A.Amotherofthreeyear'soldchild.

B.AnIrvingBerlinlyric.

C.Spouseofavictimkilledatthetradecenter.

D.Anemotionalcontemporarypoet.

51.Gamingwillnotbeinfluencedbywidereconomiccycleunlessitbecomesa______.

52.SectionB

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

Ifyougodowntothewoodstoday,youmaymeethigh-techtrees-geneticallymodifiedtospeedtheirgrowthorimprovethequalityoftheirwood.Genetically-engineeredfoodcropshavebecomeincreasinglycommon,albeitcontroversial,overthepasttenyears.Butgeneticengineeringoftreeshaslaggedbehind.

Partofthereasonistechnical.Understanding,andthenaltering,thegenesofabigpinetreearemorecomplexthancreatingabettertomato.Whiletomatoessprouthappily,andrapidly,inthelaboratory,growingawholetreefromasingle,geneticallyalteredcellinatesttubeisatrickyprocessthattakesyears,notmonths.Moreover,littleisknownabouttreegenes.Sometrees,suchaspinetrees,havealotofDNA-roughlytentimesasmuchashuman.And,where-astheHumanGenomeProjectismorethanhalfwaythroughitstaskofisolatingandsequencingtheestimated100,000genesinhumancells,similareffortstoanalyzetreegenesarestilljustsaplings(幼苗).

Giventhelargenumberoftreegenesandthelittlethatisknownaboutthem,treeengineersarestartingwithasearchforgenetic"markers".ThefirststepistoisolateDNAfromtreeswithdesirablepropertiessuchasinsectresistance.ThenextstepistofindstretchesofDNAthatshowthepresenceofaparticulargene.Then,whenyoumatetwotreeswithdifferentdesirableproperties,itissimpletocheckwhichoffspringcontainthemallbylookingforthegeneticmarkers.HenryAmerson,atNorthCarolinaStateUniversity,isusinggeneticmarkerstobreedfungalresistanceintosouthernpines.BillionsofthesearegrownacrossAmericaforpulp(纸浆)andpaper,andoutbreaksofdiseaseareexpensive.Butnotallindividualtreesaresusceptible.Dr.Amerson'sgrouphasfoundmarkersthatdistinguishfungus-resistantstockfromdisease-pronetrees.Usingtraditionalbreedingtechniques,theyareintroducingtheresistancegenesintopinesontestsitesinAmerica.

Usinggeneticmarkersspeedsupold-fashionedbreedingmethodsbecauseyounolongerhavetowaitforthetreetogrowuptoseeifithasthedesiredtraits.Butitismoreasophisticatedform.ofselectivebreeding.Now,however,interestingenetictinkering(基因修补)isalsogainingground.Tothisend,Dr.AmersonandhiscolleaguesaretakingpartinthePineGeneDiscoveryProject,aninitiativetoidentifyandsequencethe50,000-oddgenesinthepinetree'sgenome.Knowingwhichgenedoeswhatshouldmakeiteasiertoknowwhattoalter.

Comparedwithgeneticengineeringoffoodcrops,geneticengineeringoftrees______.

A.beganmuchlater

B.hasdevelopedmoreslowly

C.islessuseful

D.islesscontroversial

53.Accordingtothetext,AmusingOurselvestoDeathisabook______.

A.tellingpeoplehowamusingitistowatchTV

B.warningpeopletooversteptheinstructionsintheBible

C.showingthereisadirectlinkbetweenTV-watchinganddeath

D.criticizingtelevisionforeatingoutourlives

54.SectionA

Directions:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.Pleasemarkthecorrespondingletterforeachitemwithasinglelinethroughthecenter.Youmaynotuseanyofthewordsinthebankmorethanonce.

Theconceptofo

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