版權(quán)說(shuō)明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)
文檔簡(jiǎn)介
2022-2023年四川省廣元市大學(xué)英語(yǔ)6級(jí)大學(xué)英語(yǔ)六級(jí)真題一卷(含答案)學(xué)校:________班級(jí):________姓名:________考號(hào):________
一、2.ReadingComprehension(SkimmingandScanning)(20題)1.BesurenottousebirthdatesoryourphonenumbersasyourPINbecausethey______.
2.
Inthe1880's______uncoveredRuinsthatshowedtheexistenceofagreatcivilization.
3.
Manypeoplenowpreferthesaying"earlyripe,earlyrich"tothesaying"earlyripe,earlyrot."
A.YB.NC.NG
4.
Therewere______groupsofindenturedservants.
5.
AccordingtoscientistsattheU.S.NationalSnowandIceDataCenter.withinabout60years,therewillbe______ontheArcticOcean.
6.
Thedevelopednationswillmakemoreeffortstoincreasetheirpopulationgrowth.
A.YB.NC.NG
7.Asthebandwidthincreasedto550MHz,thenumberofTVchannelsincreasedby______comparedwiththeearlycablesystems.
A.24B.33C.58D.91
8.
Menandwomenalwayscompeteinrunning,jumping,climbing,lifting,throwingandwrestling.
A.YB.NC.NG
9.Whatisthepassagemainlyabout?
A.Techniquesinphysicalexercises.
B.Exercisethatyoucandobyyourself.
C.Localsportsclubsandgyms.
D.Suggestionsfororganizedsportclasses.
10.
Ifyouwanttogiveupajobwholesale,youshouldevaluate______fromit.
11.
Disposableproductsarenotbeneficialtothedevelopmentofmodernindustry.
A.YB.NC.NG
12.
Mostconsumersliketologsomefamouswebsitestocomparepricesatanytimeandbuy______.
13.
Atrademarkisgenerallyusedtoidentifyanddistinguishgoodsofdifferentmanufacturersandshow______ofcertaingoods.
14.
Theresearchesshowthatpeoplenowspendfarmoreonequipmentandchemicalsthanthey______.
15.
Theoretically,peoplecanburnalloftheconventionalnaturalresourcesandcanstillrealizethegreatgoalsof______.
16.
Thebodyatleastcannotmakeforitselfsufficientquantitiesofvitaminsfornormalnutritionandmetabolism.
A.YB.NC.NG
17.FactorsThreateningtheEnvironment
Theproblemsfacingtheenvironmentarevastanddiverse.Globalwarming,thedepletionoftheozonelayerintheatmosphere,anddestructionoftheworld'srainforestsarejustsomeoftheProblemsthatmanyscientistsbelievewillreachcriticalproportionsinthecomingdecades.Alloftheseproblemswillbedirectlyaffectedbythesizeofthehumanpopulation.
A.PopulationGrowth
Humanpopulationgrowthisattherootofvirtuallyalloftheworld'senvironmentalproblems.Althoughthegrowthrateoftheworld'spopulationhasslowedslightlysincethe1990s,theworld'spopulationincreasesbyabout77millionhumanbeingseachyear.Asthenumberofpeopleincreases,crowdinggeneratespollution,destroysmorehabitats,andusesupadditionalnaturalresources.
ThePopulationDivisionoftheUnitedNations(UN)predictsthattheworld'spopulationwillincreasefrom6.23billionpeoplein2000to9.3billionpeoplein2050.TheUNestimatesthatthepopulationwillstabilizeatmorethan11billionin2200.Otherexpertspredictthatnumberswillcontinuetoriseintotheforeseeablefuture,toasmanyas19billionpeoplebytheyear2200.
Althoughratesofpopulationincreasearenowmuchslowerinthedevelopedworldthaninthedevelopingworld,itwouldbeamistaketoassumethatpopulationgrowthisprimarilyaproblemofdevelopingcountries.Infact,becauselargeramountsofresourcesperpersonareusedindevelopednations,eachindividualfromthedevelopedworldhasamuchgreaterenvironmentalimpactthandoesapersonfromadevelopingcountry.Conservationstrategiesthatwouldnotsignificantlyalterlifestylesbutthatwouldgreatlylessenenvironmentalimpactareessentialinthedevelopedworld.
Inthedevelopingworld,meanwhile,themostimportantfactorsnecessarytolowerpopulationgrowthratesaredemocracyandsocialjustice.Studiesshowthatpopulationgrowthrateshavefallenindevelopingareaswhereseveralsocialconditionsexist.Intheseareas,literacyrateshaveincreasedandwomenreceiveeconomicstatusequaltothatofmen,enablingwomentoholdjobsandownproperty.Inaddition,birthcontrolinformationintheseareasismorewidelyavailable,andwomenarefreetomaketheirownreproductivedecisions.
B.GlobalWarming
Liketheglasspanesinagreenhouse,certaingasesintheEarth'satmospherepermittheSun'sradiationtoheatEarth.Atthesametime,thesegasesretardtheescapeintospaceoftheinfraredenergyradiatedbackoutbyEarth.Thisprocessisreferredtoasthegreenhouseeffect.Thesegases,primarilycarbondioxide,methane,nitrousoxide,andwatervapor,insulateEarth'ssurface,helpingtomaintainwarmtemperatures.Withoutthesegases,Earthwouldbeafrozenplanetwithanaveragetemperatureofabout18℃insteadofacomfortable15℃.Iftheconcentrationofthesegasesrises,theytrapmoreheatwithintheatmosphere,causingworldwidetemperaturestorise.
Withinthelastcentury,theamountofcarbondioxideintheatmospherehasincreaseddramatically,largelybecausepeoplebumvastamountsoffossilfuels--coalandpetroleumanditsderivatives.Averageglobaltemperaturealsohasincreased--byabout0.6Celsiusdegreewithinthepastcentury.Atmosphericscientistshavefoundthatatleasthalfofthattemperatureincreasecanbeattributedtohumanactivity.Theypredictthatunlessdramaticactionistaken,globaltemperaturewillcontinuetoriseby1.4to5.8Celsiusdegreesoverthenextcentury.Althoughsuchanincreasemaynotseemlikeagreatdifference,duringthelasticeagetheglobaltemperaturewasonly2.2Celsiusdegreescoolerthanitispresently.
Theconsequencesofsuchamodestincreaseintemperaturemaybedevastating(破壞性的).Alreadyscientistshavedetect
A.YB.NC.NG
18.
Sincerainforestbacteriaandtreesdependoncactiotherforlife,therelationshiptheyform.istermed______.
19.
AftertheresignationofIndonesianPresidentin1998,IndonesianChineseresidentssenttheirchildrentoschoolofferingChinesecoursesinthebeliefthat"ChinesechildrenshouldlearnChinese".
A.YB.NC.NG
20.Thegreatnumberofpatientsvisitingthecomplementary-medicinecenteratNewYork'sHospitalforSpecialSurgeryreflects______intheUS.
二、3.ListeningComprehension(20題)21.(31)
A.Theirpackagingofexportshavetoconform.toEUregulations.
B.Theyhavetocutoutwastecompletely.
C.Theymusthaveanexperienceddistributor.
D.Theywillseeexpensiverise.
22.(22)
A.Gerard.B.Patrick.C.Raleigh.D.Kelly.
23.(25)
A.Becausethedishwasherbrokedown.
B.Becauseitsoundsprettyserioustogetthedishwasherbroken.
C.Becauseshecouldhavegottentherepairherself.
D.BecausePauladeductedthecostfromtherentcheck.
24.【B9】
25.聽(tīng)力原文:AccordingtoanewstudydoneattheMedicalschooloftheUniversityofCalifornia,lefthandedpeoplemaybemorelikelytohaveaccidentsthantherighthanded.Onereasonmaybethatlefthanderstendtomakeminormentalmistakes.Inthestudyof2000sailors,thosewhohadmorementalerrorsalsohadmoreaccidents,andlefthanderswerereportedtohavemorementalerrorsandmoreaccidentsthanrighthanders.Theauthorofthestudy,HarrySmithsaid"Minormentalmistakesaremistakesthatanyadultswouldmakewhentheyweretiredorcarelessandtheycouldleadtoaccidentsbecausetheylosetrackofwhatwearedoing."PaulWhite,chiefofthestudyprogramsaidthathefoundthestudyinterestingandexciting.Buthewarnedthattheconclusionsshouldnotbeacceptedwithoutfurtherinvestigation.Hesaidthestudyhadlimitations,andlimitationscouldhaveinfluencedtheresults.HarrySmith,whoisrighthandedhimself,stressedthatthestudywasnotanofficialprojectandsaidthatthefindingscannotbeappliedtoeveryleftbander,tiesaidminormentalmistakesweremostlybecauseofthelackofconcentration.Butinthepast,itwasbelievedthatlefthanderstendedtohavemoreaccidentslargelybecausemostequipmentwasdesignedforrighthanders.
(33)
A.Righthandersaremorelikelytohavementalmistakes.
B.Lefthandersaremoreliabletohaveaccidents.
C.Lefthandersaremoreskillfulinhandlingthings.
D.Righthandersgettiredeasily.
26.
【B11】
27.(29)
A.None.B.Two.C.Three.D.Morethanthree.
28.SectionA
Directions:Inthissection,youwillhear8shortconversationsand2longconversations.Attheendofeachconversation,oneormorequestionswillbeaskedaboutwhatwassaid.Boththeconversationandthequestionswillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarkedA,B,CandD,anddecidewhichisthebestanswer.
聽(tīng)力原文:W:Don'tyouthinkit'smarvelousthatMaryhaswonthefirstprizeoftheEnglishSpeechContest?
M:Shedeservesit.
Q:Whatdoesthemanmean?
(12)
A.Maryearnedtheprize.
B.Maryhasgrantedtheprize.
C.Maryfailsinthespeechcontest.
D.Themandoesn'tthinkMarydeservestheprize.
29.(36)
A.Baby-theParrotDetective.
B.AnAmazonParrot.
C.RisingCrimeRatesinAmericanSociety.
D.HowtoProtectYourHouse.
30.(26)
A.Theyusuallyacceptresponsibility.
B.Theyblamefactorsbeyondtheircontrol.
C.Theycomplainabouttheirpersonalproblems.
D.Theycomparetheirbehavior.toothers'.
31.【B7】
32.(32)
A.Toshowthekeyroleplayedbyairtrafficcontrollers.
B.Toshowthegreatresponsibilityshoulderedbythepilots.
C.Togiveanexampleofairdisasters.
D.Toshowthatairtravelisfarsaferthandrivingacar.
33.(21)
A.Good,butneedsimprovement.
B.It'sgoodenough.
C.Good,butitcanmakepeoplelazy.
D.Good,butthecomputersarelikelytobeattackedbyhackersfromtheInternet.
34.聽(tīng)力原文:(29)Ofallthemethodsofdiscoveringnewideas,DisneyduringtheEisneryearshadoneofthemostunconventional.Modeledaftera1970stelevisionprogram,Disney's"GongShow"wasabighitwithmanagersandordinaryemployeesalike.
(30)Threetimesayear,Eisnerandtwoofhistopassistantswoulddevoteadaytolisteningtoanybodyandeverybody--secretaries,setdesigners,themeparkemployees--whowantedtoproposeanidea.Asmanyas40peoplewereallowedtoperform,presentorotherwiseselltheirideauntilaloudgongwouldsignalthattimewasup.(30)Then,afteralltheideaswereexpressed,Eisnerandhismanagerswoulddiscusseachoneandmakeadecision.
AccordingtoPeterSchneider,presidentofDisneyfeaturesatthetime,mostofDisney'scartoonmoviesoriginatedfromthesesessions,asdidtheideaforDisney'sretailstores.Mostorganizationsdon'tinviteideaswithsuchinsight.Nordotheygiveinstantfeedbackormakequick"yesorno"decisions.
"(31)Inmostcompaniesthereisnoobviousstrategyforselectingorevenevaluatingideas,"concludestheAmericanManagementAssociation'ssurveyof1,356globalmanagers.Nearlyhalfofrespondentsreportedthattheirfirms"don'thaveastandardpolicyforevaluatingideas".Andonly17%saidtheyuseanindependentreviewprocesstoevaluateideas.
Aneffective,transparentselectionprocessisessentialtosystematicinnovation.Withoutone,ideashavenopathtowardgainingfundingandresourcesandimplementation.Anestablishedreviewprocessinvitesparticipationbythosewhosejobisnotspecificallyinnovation.Itconnectsyour"ideafunnel"toyour"ideapipeline"andacceleratestheflowofideas.
(30)
A.BecauseDisneywantedtoshowitsnewmovies.
B.BecauseDisneywantedtoinvitemorepeopletoitsparks.
C.BecauseDisneywantedtohavemoreinnovations.
D.BecauseDisneywantedtogiveincentivesandbonustoallitsemployees.
35.(35)
A.Theylosttheirway.
B.Theyforgotwhattheyweredoing.
C.Theyweresleepy.
D.Theyhadmentalmistakes.
36.聽(tīng)力原文:Whenyouwanttoknowmoreaboutsomeoneyouoftenask"Whatdoyoudo?"Thismeans"Whatisyourjob?"Itisacommonquestion,andwedonotthinkthereisanythingstrangeaboutit.Butitispossiblethatinthefuturewewillaskadifferentquestion.Wemightask,"Whatdoyouplay?."
Computersandsuchthingsaremakingjobsmoreautomaticandlessdemanding.Scientiststellusthatonedayveryfewpeoplewillhavetowork.Oursocietywillberunbycomputers.Andsowewillallhaveagreatdealoffreetime.Andthengameswillbemoreimportantthanjobs.
Todaygamesandplayareaveryimportantpartoflife.Todaypeoplearedividedintosocialclassesbecauseofthetypeofworktheydo.Tomorrowtheymaybedividedbecauseofthetypesofgamestheyplay.
Inthefuture,wemayhave"funspecialists",justaswenowhavespecialistsindifferenttypesofwork.Itwouldbetheirjobtoshowushowtogetthemostfunandenjoymentoutofoursparetime.Andoursocietymaybemadeupofsub-groups,suchassurfers,skydivers,joggers,skiers,etcManyofthesesub-groupsmayrelyontechnologytoprovidetheequipmentfrotheirgames.
(33)
A.Whatdoyouplay?
B.Whatdoyoudo?
C.Whatisyourname?
D.Whatisyourjob?
37.
【B6】
38.聽(tīng)力原文:W:Howaboutgoingtotheartgallerytoday?Theyarehavingaspecialexhibitoflocalartistsincludingyourfavoritepainter.
M:I'dloveto,ifIcangetthistermpaperoutofmyway.
Q:Whatdoesthemanmean?
(18)
A.Heenjoyedthepaintingstoo.
B.Hecan'tfinishhistermpaperthatday.
C.Hehastofinishhistermpaperfirst.
D.Hehaslearnedsomethingabouttheartists.
39.聽(tīng)力原文:W:Sir,didyoujustsayyouaregoingtofinemeonehundreddollars?
M:Yes,onehundreddollars.Speedinganddrivingundertheinfluenceofalcohol.Well,youcan'tfoolmewiththatsmellofalcoholinyourbreath.
Q:Whatdoesthemanimply?
(19)
A.Thewomanneedstopayhimonehundreddollarsforhisjob.
B.Thewomanhastopayaone-hundred-dollarfineforspeeding.
C.Thewomanhastobefinedbecauseofspeedinganddrunkdriving.
D.Thewomanisafool.
40.
【B5】
三、4.ReadingComprehension(ReadinginDepth)(20題)41.
Thereasonwhy1994wasexceptionalisthat______.
A.issawanunusuallylargenumberoftouriststotheUS
B.itwitnessedadropinthenumberoftouriststotheUS
C.tourismwashardlyaffectedbytheweakeningoftheUSdollarthatyear
D.TouristscametotheUSforsightseeingratherthanforbargainsyear
42.
Whatdoestheauthorimplybysaying"therehasbeenaconsiderablechangeofattitudetowardsspeechsnobbery"?
A.PeopleallspeakEnglishlikeBBCannouncers.
B.ThereisagreatchangeofattitudeabouthowEnglishshouldbespoken.
C.Somepeoplestillthinktheirwayofspeakingissuperior.
D.Mostpeopledon'tbelievetheirwayofspeakingissuperior.
43.
Comparedwiththefameofuniversities,______aremoreimportant.
44.
Inthelastparagraphtheauthorindicatesthat______.
A.nothingcanbedoneaboutviolenceinsports
B.footballplayersareconcernedaboutviolenceinsports
C.violenceinsportsisworsenowthaniteverwas
D.athletesareconfusedaboutwhatshouldbepermittedinsports
45.
Itcanbeinferredfromthepassagethat______.
A.theArabsrejectanyirritatingbodilycontact
B.theArabsavoidanybodilycontactwithstrangers
C.evenimpolitebodilycontactisacceptablebytheArabs
D.bodilycontactisawaytoshowfriendlinessbytheArabs
46.
Asusedinthelastparagraphofthispassage,thewordintricatemeans______
A.abnormalB.complexC.regularD.perfect
47.
Whatishueabouttheauthor'smusicalcareer?
A.Histalentwaswellrecognizedsincehewasateenager.
B.Hewantedtoregainhisconfidencebybecomingacountrymusicsinger.
C.Hisperformancesinthebarshadprovedsuccessful.
D.Hemovedtoanothercitybecausetherecordlabelshowedinterestinhim.
48.
"Autonomy"inlastparagraphmeans______.
A.areaoccupiedbythepatient
B.therightofself-decisionofpatients
C.fieldofinfluenceofpatients
D.politicalpowerofpatients
49.
ThepassageindicatesthatallofthefollowingareusedbyMelanesiancraftsmenEXCEPT______.
A.shellB.stoneC.boneD.metal
50.
Whensayingthat"Thesuccessofthegold-exchangestandard,however,dependedonthesuperiorpositionoftheUnitedStatesinworldtrade",theauthorismostprobablyreferringthat______.
A.underthissystem,theUnitedStateswasrequiredtolendmoneytoanycountrythatasked
B.underthissystem,theUnitedStateswastheonlycountryallowedtomaintaingoldreserves
C.tyingthevalueofmostcurrenciestoanyonecurrencyrequiresthatthecurrencybeStable
D.thegoldexchangestandardislessflexibleinmeetingcurrencydemandsthanthegoldstandard
51.
Fromthequotedwordsinthebeginningofparagraph3,wecanjudgethatuniversitytutorsare______.
52.
Whichofthefollowingmethodsistheleastpsychologicallyacceptable?
A.Photographs.B.Lipprints.C.Fingerprints.D.Voiceprints.
53.
Personalchoicesaremoresignificantthan______factorsastoinfluencethedevelopmentofhealth-relatedbehaviors.
54.
Whyweremanylaid-offworkersataloss?
A.Becausetheydidn'tgetusedtothenewwayoflife.
B.Becausetheyaretoooldtofindanewjob.
C.Becausetheydislikebeinglaidoff.
D.Becausetheythinktheylosttheirsocialstatus.
55.SectionA
Directions:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.Pleasemarkthecorrespondingletterforeachitemwithasinglelinethroughthecenter.Youmaynotuseanyofthewordsinthebankmorethanonce.
Market【C1】______donotcomenaturallytoChineseofficials.Forthepastfouryearstwohugediversion【C2】______havebeenunderwaytobringwaterfromtheYangziRiverbasintonorthernChina.Workonamoretechnologicallychallengingthirdroute,involvingblastingthroughmountainstolinktheYangzi'supper【C3】______totheYellowRiver,isexpectedtobeginaround2010.Theproposalcastigatedbythewaterminister,WangShucheng,onOctober24thwasevenmoregrandiose.Itwould【C4】______thelinktotheYaluZangburiver,astheupperreachesofIndia'sBrahmaputrariverareknowninChina.MrWangdescribedthisas"unnecessary,unfeasibleandunscientific"(whilestressingthatthiswashis"academic"opinion).Indiamustberelieved.
Meanwhile,Chinahasbeen【C5】______toimposetougherpenaltiesonwaterpollutersorhigher【C6】______onconsumers.Itfearsthathigherpriceswoulddriveindustriesawayfromthenorthandmakeitmoredifficultforstrugglingstate-owned【C7】______toturnaprofit.Italsoworriesaboutangeringhouseholdconsumers,particularlyinthe【C8】______.Accordingtoagovernment【C9】______,waterpricesin36bigcitieshaverisenanaverageof10%annuallyforthepastthreeyears(Beijing'shaverisen30-foldinthepast14years).ButinAugustagovernmentthink-tanksaidpricesremainedonlyaboutathirdoftheworld【C10】______.Itcalledforpricereformstobespeededup.OnOctober20thBeijingpublishedafive-yearplanforeconomicandbureaucraticreformsinthecapital.Thiscalledforwaterpricestoreflectsupplyandthecostofdeliveryby2010.ThenationalgovernmentsaidearlierthisyearthatitaimedtocutwaterconsumptionperunitofGDPby30%inthesameperiod.
A)averageI)reaches
B)countrysideJ)reluctant
C)enterprisesK)river
D)extendL)solutions
E)forcesM)survey
F)getN)tariffs
G)levelO)tough
H)projects
【C1】
56.
Expertshavepointedoutthatinthefaceofcar-ownershipexplosion,driversshouldbereadyto______.
57.SectionA
Directions:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.Pleasemarkthecorrespondingletterforeachitemwithasinglelinethroughthecenter.Youmaynotuseanyofthewordsinthebankmorethanonce.
ThomasJeffersonwasinauguratedonMarch4,1801.HewasthefirstPresidenttotaketheoathofofficeinthenation's【C1】______capital,WashingtonD.C.AlthoughWashingtonD.C.wasanewcityitwasalready【C2】______toPresidentJefferson.Infact,Jeffersonhadhelpedplanthecapital'sstreetsandpublicbuildings.Besidesbeingacityplannerand【C3】______,thenewPresidentwasawriter,ascientist,andtheinventorofseveralgadgetsandtools.
Afterhisinauguration,JeffersonmovedintothePresidentialPalace.ThePalacewasmorethanahome;it【C4】______officesforthePresidentandsomeofhisstaffandadvisors.Italsoincludeddiningandreceptionrooms,wherethePresidentcould【C5】______congressmen.However,PresidentJeffersondidnotgivemany【C6】______parties.ThiswaspartlybecausetherewasnoFirstLady;Jefferson'swifehaddiedin1782.Butitwasalsobecausenoonelikedtoliveinasimple【C7】______.Once,he【C8】______upforanimportantmeetingwearingoldclothesanddown-at-the-heelsslippers!NeitherWashingtonnorAdamswouldeverhavedressedso【C9】______.
JeffersonwasdifferentfromthefirsttwoPresidentsinotherways,too.He【C10】______withthemabouthowthecountryshouldberun,andaboutwhatpartaPresidentshouldplayinrunningit.
A)customI)sustain
B)showedJ)casually
C)permanentK)contained
D)entertainL)occasional
E)naturallyM)familiar
F)formalN)architect
G)disagreedO)consented
H)fashion
【C1】
58.WhydoesBillRandelsaythatthefindingsaresurprising?
A.Thefindingsarecompletelyoppositetopreviousfindings.
B.Thefindingsarenotunderstandableatall.
C.Watervaporhasbothpositiveandnegativeeffects.
D.Theeffectofwatervaporissosignificant.
59.(58)
60.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(紙漿)andpaper,andoutbreaksofdiseaseareexpensive.Butnotallindividualtreesaresusceptible.Dr.Amerson'sgrouphasfoundmarkersthatdistinguishfungus-resistantstockfromdisease-pronetrees.Usingtraditionalbreedingtechniques,theyareintroducingtheresistancegenesintopinesontestsitesinAmerica.
Usinggeneticmarkersspeedsupold-fashionedbreedingmethodsbecauseyounolongerhavetowaitforthetreetogrowuptoseeifithasthedesiredtraits.Butitismoreasophisticatedform.ofselectivebreeding.Now,however,interestingenetictinkering(基因修補(bǔ))isalsogainingground.Tothisend,Dr.AmersonandhiscolleaguesaretakingpartinthePineGeneDiscoveryProject,aninitiativetoidentifyandsequencethe50,000-oddgenesinthepinetree'sgenome.Knowingwhichgenedoeswhatshouldmakeiteasiertoknowwhattoalter.
Comparedwithgeneticengineeringoffoodcrops,geneticengineeringoftrees______.
A.beganmuchlater
B.hasdevelopedmoreslowly
C.islessuseful
D.islesscontroversial
四、5.ErrorCorrection(5題)61.
【S5】
62.
【S8】
63.
【S4】
64.
【S10】
65.【S9】
五、6.Translation(5題)66.Itissensiblethatintheirdailylife,children____________(要和電視電腦保持一定距離)tokeepgoodeyesight.
67.Onlyunderspecialcircumstances____________________(才允許大一學(xué)生參加補(bǔ)考).
68.Evenyounganimalshavetheabilityto_____________________________(本能地適應(yīng)環(huán)境).
69.Everyoneinthefrontseatis_______________________(應(yīng)該系好安全帶).
70.______(她對(duì)傷疤很敏感)andthoughteveryonewasstaringather.
參考答案
1.canbeeasilyassociatedwithyoupersonallycanbeeasilyassociatedwithyoupersonally解析:由題干中birthdates和yourphonenumbers可定位到第五個(gè)小標(biāo)題下第二段第二條MakeyourPINaseriesoflettersornumbersthat...suchasbirthdates,initials,housenumbersoryourphonenumber.此處要求填入謂賓語(yǔ)成分作because的原因狀語(yǔ)從句。根據(jù)原句意思可判斷破折號(hào)前后內(nèi)容構(gòu)成因果關(guān)系,即不能使用生日或個(gè)人的電話號(hào)碼作密碼是因?yàn)樗鼈兙苋菀椎嘏c個(gè)人聯(lián)系起來(lái),因此canbeeasilyassociatedwithyoupersonally為本題答案。
2.someGermanarcheologistssomeGermanarcheologists解析:本題的關(guān)鍵詞為Inthel880's和showtheexistenceof...,鎖定原文:Theninthe1880'ssomeGermanarcheologistsuncoveredsomethingthatshowedtheexistenceofagreatcivilization.,答案由此得出。
3.B
4.twotwo解析:文章第九段的開(kāi)頭第一句話就說(shuō)明了有兩種契約仆役。因此,此空填two。
5.nosummericeatallnosummericeatall解析:根據(jù)題干中的信息詞U.S.NationalSnowandIceDataCenter和60years定位到第四個(gè)小標(biāo)題下的第二段,可知從美國(guó)國(guó)家雪冰數(shù)據(jù)中心的科學(xué)家那里得知,海上冰的覆蓋率在逐年降低,他們統(tǒng)計(jì)出縮減率現(xiàn)在是每十年縮減大約8%,也就是說(shuō)不到60年,北冰洋上就沒(méi)有夏冰了,由此可得答案。
6.C解析:在小標(biāo)題B.PopulationPoliciesinDevelopedNations下面談到一些發(fā)達(dá)國(guó)家的鼓勵(lì)生育的政策,但沒(méi)有給出任何暗示表明發(fā)達(dá)國(guó)家將做出更大的努力來(lái)增加他們的人口,因此此題的答案為NG。
7.C解析:本題涉及到電視節(jié)目數(shù)量的比較。該段提到早期的電纜系統(tǒng)只能收到33個(gè)頻道,隨著技術(shù)的進(jìn)步,當(dāng)頻寬增加到550MHz時(shí),電視頻道增加到91個(gè),也就是說(shuō),與早期的電纜系統(tǒng)相比,電視頻道增加了58個(gè),故答案為[C]。
8.B解析:文章第一自然段第四句buttheyhavenotalwaysperformedthesephysicalactivitiescompetitively.即人們不總是在比賽中才進(jìn)行此類(lèi)活動(dòng)。
9.B解析:前四段主要講一些人不愿意做運(yùn)動(dòng)的原因及給他們的建議,第五段提到Butmanyactivitiescanbedonebyyourself…,第六段提到Herearesome
溫馨提示
- 1. 本站所有資源如無(wú)特殊說(shuō)明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽,若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
- 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 人人文庫(kù)網(wǎng)僅提供信息存儲(chǔ)空間,僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
- 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請(qǐng)與我們聯(lián)系,我們立即糾正。
- 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。
最新文檔
- 2026四川雅安市老干部活動(dòng)中心招聘1人筆試備考題庫(kù)及答案解析
- 2026浙江金華市武義縣城鄉(xiāng)環(huán)境服務(wù)有限公司招聘1人筆試備考題庫(kù)及答案解析
- 2026湖南永州市廉潔征兵筆試參考題庫(kù)及答案解析
- 2025年多媒體應(yīng)用設(shè)計(jì)師筆試及答案
- 2025年大學(xué)高校財(cái)務(wù)管理崗筆試及答案
- 2025年boss心理測(cè)試筆試及答案
- 2025年達(dá)州鋼鐵集團(tuán)筆試及答案
- 2025年建筑集團(tuán)招聘筆試題庫(kù)及答案
- 2025年內(nèi)蒙古教招英語(yǔ)筆試及答案
- 2025年醫(yī)院會(huì)計(jì)事業(yè)編考試真題及答案
- 殘疾人服務(wù)與權(quán)益保護(hù)手冊(cè)(標(biāo)準(zhǔn)版)
- 車(chē)隊(duì)春節(jié)前安全培訓(xùn)內(nèi)容課件
- 2025年溫州肯恩三位一體筆試英語(yǔ)真題及答案
- 云南師大附中2026屆高三高考適應(yīng)性月考卷(六)歷史試卷(含答案及解析)
- PCR技術(shù)在食品中的應(yīng)用
- 輸液滲漏處理課件
- 教育培訓(xùn)行業(yè)發(fā)展趨勢(shì)與機(jī)遇分析
- 2025醫(yī)療器械經(jīng)營(yíng)質(zhì)量管理體系文件(全套)(可編輯?。?/a>
- 物業(yè)與商戶裝修協(xié)議書(shū)
- 湖南鐵道職業(yè)技術(shù)學(xué)院2025年單招職業(yè)技能測(cè)試題
- GB/T 46318-2025塑料酚醛樹(shù)脂分類(lèi)和試驗(yàn)方法
評(píng)論
0/150
提交評(píng)論