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2022年湖南省长沙市大学英语6级大学英语六级学校:________班级:________姓名:________考号:________
一、2.ReadingComprehension(SkimmingandScanning)(20题)1.
Exceptforphysicalfitness,healthalsoinvolves______.
2.
ThenativeanimalsthateatGMcropsmightbepoisonedby______.
3.
Thelarge-scaleraidin2005indicatesthatthesocialorderisamessinHolland.
A.YB.NC.NG
4.PartⅡReadingComprehension(SkimmingandScanning)
Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,choosethebestanswerfromthefourchoicesmarkedA),B),C)andD).Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.
HappyEarthDay
TheGoodNews
Here'sthegoodnews:ourairiscleaner,ourlakesarepurer,ourforestsarehealthier,endangeredspeciesarerecovering,toxicemissionsaredown,andacidrainhasdiminisheddramatically.Andyet,ifyou'velookedatanewspaperorwatchedtheeveningnewslately,youmightthinkourenvironmentisundersiege(围攻).Mediacoverageoftheenvironmentisheavyondoomsday,butthetruthisnotatallbreak:nearlyallenvironmentaltrendsintheUnitedStatesarepositiveandhavebeenforyears--ifnetdecades.
Eco-legislation,greenorganizations,corporatecooperationandnewinventionshaveallquietlysteeredourenvironmentinapositivedirection.Wecan'taffordtobecomplacent(自满的),though--especiallywhenitcomestogreenhousegases,sinceglobalwarmingistheonehugeproblemwehaven'treallytackled.Butalmosteverymeasuretakenbygovernmentagenciesandgrass-rootseffortstnimprovetheenvironmenthasshownencouragingresults--usuallyfasterthanexpectedandatalowercost.Nowthat'sgoodnews.
Scientistsandenvironmentaliststhinkthateventheworrisomefactofglobalwarmingcanbeameliorated(改善).Thereisastrongscientificconsensusthattheglobalwarmingthreatrequiresaction,butifcurrentenvironmentaltrendspersistandthereductionofmostpollutantscontinuestobeaccomplishedfasterandmorecheaplythanexpected,wemaybeabletocontrolandreducegreenhousegasesinbothaffordableandpracticalways.
ConsidersomeoftheenvironmentalimprovementstheUnitedStateshaswitnessedoverthelastthreedecades.
ImprovedAirQuality
Takeanice,bigcleansingbreath.AccordingtotheEnvironmentalProtectionAgency,emissionsoftheprimarysmog-causingchemicalsfromcarsandtruckshavedeclined54percentsince1970,eventhoughthenumberofregisteredcarsandtruckshasmorethandoubled,from108,407,000to230,428,000,andtheyarenowdrivenoneandahalftimesasfarannually.
Keepbreathing,becausethefineparticulateslinkedtorespiratorydisease,includingthosesometimesseenassoot(煤烟),aredownbyaboutone-thirdsince1979(thoughfewercitiesweresurveyedbackthen).Thelevelofcarbonmonoxide,adangerousodorlessgas,isdown53percentsince1970.Andemissionsofsulfurdioxide,oftenthemajorculpritbehindacidrain,aredown49percentsince1970,despitethefactthattheUnitedStatesnowbumsfarmorecoal,themainsourceofthispollutant.
TheseimprovementshavetranslatedintobetterairqualityformillionsofAmericans.Between1976and1990,theLosAngelesareaaveragedsome150daysperyearinviolationoffederalsmogstandards;in2004,thatfiguredroppedtojust27violationdays,thefewesteverforthatcity.
And,incaseyouarewondering,federalstandardshavebecomestricter;notweaker,duringthisperiod.Ofcourse,thereismoretobedone-27smogdaysinLosAngelesarestill27toomany,andAtlanta,Houstonandothercitiescontinuetoexperienceair-pollutionproblems.Butoverall,air-qualitytrendsarestronglypositive.Now,exhale.
BetterWaterQuality
Otherenvironmentaltrendsareequallyencouraging.Waterqualityhasimproved,too,andratesofwaterbornediseasearealsoindecline.It'shardtobelieve,butjustagenerationago,factoriesandmunicipalpla
A.Globalwarming.
B.Acidmin.
C.Toxicemission.
D.Environment.
5.
BernicediscardedthemealsdeliveredbyMealsonWheels,believing______.
6.
Differentfromanimals,thetreesinfluencetheearth'satmosphereby______.
A.expellingcarbondioxidefromtheirleaves
B.expellingoxygenfromtheirleaves
C.directlyreducetheblanketofgases
D.turningsomecarbondioxideintolignin
7.
Whydoesthepassagesayanxietyispartofthe"fightorflight"mechanism?
A.Anxietyisanorganofourbodyorpartofourbody.
B.Anxietyisawarningforyoutofightortoescapefromdanger.
C.Anxietykeptpeoplealivewhenindanger.
D.Anxietyisacarry-overfromourancientancestors
8.
Theauthorrealizedthatworkinglongerhoursatoffice______.
A.resultedinmoreaccomplishment
B.wasoftendemandedbytheboss
C.couldhelpimproveefficiency
D.wasanextremelyfoolishidea
9.Whichofthefollowingisnotabigadvantageofswimmingaccordingtothepassage?
A.Waterreducesthepressureonpeople'sjoints.
B.Swimmingworksmostofthemajormuscles.
C.Watercangreatlyincreasepeople'sfitness.
D.Swimmingcanburnthefatquiteeffectively.
10.
AlargesumofmoneymustbespentonLyubomirsky'sresearchbecauseitneedstotracealotofpeople______.
11.
Dihydrogenmonoxideisaverydangerouschemical,whichisoftenusedasanindustrialsolvent.
A.YB.NC.NG
12.
Prisontermstobeservedonweekendsonlyare______.
13.
Bennerandhisteamhypothesizedthatduplicationoftheancestralgeneoccurrednearthetime______.
14.
Theargumentfordesigninglanguagesforbadprogrammersisthat______.
15.
In1992,employmentinthemanufacturingsectionwas______.
16.
Infat-burningexercise,oneofthemostimportantgoalisto_____.
17.
Newtonwasverycreativeinthinkingandsolvingproblemswhenhewasalittleboy.
A.YB.NC.NG
18.
Somepeople'spowertosatisfyhisorherurgetoeatcanbeenhancedby______.
19.
Thedominantpartinthenextsociety'sworkforceis
20.
Mr.Bellavance,wasalwaysoptimisticduringtheperiodofunemployment.
A.YB.NC.NG
二、3.ListeningComprehension(20题)21.
【B10】
22.(44)
23.(26)
A.Sheisn'tthereinthemorning.
B.Herassistantisn'tthereinthemorning.
C.Shewon'thavetheformsheneedsuntiltheafternoon.
D.Sheisn'tasbusyintheafternoon.
24.(35)
A.Someoldform.ofidealworld.
B.Adventuresinocean.
C.Predictingdevelopmentintechnologyandtheireffectsonsociety.
D.Futureworldswhichhavenothingincommonwithourworld.
25.(21)
A.1000.B.100.C.200.D.2000.
26.听力原文:EvenatschooltherehadbeenanunhealthycompetitionbetweenGeorgeandRichard.
"I'llbethefirstmillionaireinColeford!"Richardusedtoboast.
"Andyou'llbesorryyouknewme,"Georgewouldreply,"becauseI'llbethebestlawyerinthetown!"
GeorgeneverdidbecomealawyerandRichardnevermadeanymoney.InsteadbothmenopenedbookshopsonoppositesidesofColefordHighStreet.Itwashardtomakemoneyfrombooks,whichmadethecompetitionbetweenthemworse.
ThenRichardmarriedamysteriousgirl.Thecouplespenttheirhoneymoononthecoast-butRichardnevercameback.Thepolicefoundhiswalletonadesertedbeachbutthebodywasneverfound.Hemusthavedrowned.
Nowwithonlyonebookshopintown,businesswasbetterforGeorge.Butsometimeshesatinhisnarrow,oldkitchenandgazedoutofthedirtywindow,thinkingabouthisformerrival.Perhapshemissedhim?
Georgewasveryinterestedinolddictionaries.He'drecentlyfoundacollectorinAustraliawhowassellingararefirstedition.Whentheparcelarrived,thebookwasinperfectconditionandGeorgewasdelighted.Butwhilehewashavinglunch,Georgeglancedatthephotointhenewspaperthatthebookhadbeenwrappedin.Hewasastonished-thesmilingfacewasolderthanherememberedbutunmistakable!Trembling,Georgestartedreading.
"BookendshaveboughttenbookstoresfromtheirrivalsDylans.Thecompany,ownedbymultimillionaireRichardPike,isnowthelargestbooksellerinAustralia."
26.WhatdowelearnaboutGeorgeandRichardwhentheywereatschool?
27.HowdidGeorgefeelaboutRichardafterhisdisappearance?
28.WheredidGeorgegetinformationaboutRichard?
29.WhathappenedtoGeorgeandRichardintheend?
(33)
A.Theywereroommates.
B.Theyweregoodfriends.
C.Theywerecompetitors.
D.Theywerebooksellers.
27.听力原文:F:Hello!ThisisProfGates'office.I'mcallingtoremindyouofyour4:15appointmentwiththeprofessortodiscussyourtermpapertomorrow.
M:Oh,thanks.It'sagoodthingthatyoucalled,Ithoughtitwas4:15today.
Q:Whatdoesthemanmean?
(18)
A.Hedidn'tmaketheappointmentwiththeprofessor.
B.Hetotallyforgetsabouttheappointment.
C.Hewouldprobablygototheprofessor'sofficetodayifthewomandidn'tcallhim.
D.Hethoughtheappointmentwas4:50.
28.【B3】
29.(22)
A.Payforthelostbooks.
B.Reconfirmwiththelibrarythatthebookswerereturned.
C.Checktoseeifthebooksarestillatherhome.
D.ChecktoseeifthebooksareatHenzer'splace.
30.【B8】
31.听力原文:F:Canyouhelpme?Idon'tknowwhereIamonthismap.AndIdon'tknowwheretheStudentsUnionis.
M:Ithinkit'sinThompsonHail.I'mheadingthatwaynow.
Q:Whatwillthemanprobablydo?
(15)
A.Hewillshowherthewayonthemap.
B.Hewilltakehertothepoliceoffice.
C.Hewilltakehertoherdestinationhimself.
D.Hewillasksomeoneelsetohelpthewoman.
32.
【B3】
33.(25)
A.Knowthelimitofyourtemper.
B.Tellthemdon'tdothesamethingsagain.
C.Givethemrewardtobehavewell.
D.Pretendtobeunawareofwhathappened.
34.
【B6】
35.听力原文:M:IamjustwritingMaryaboutourvacation.Whydon'tyouenclosethispictureofusinfrontoftheGrandCanyon?
W:Don'tyouthinkit'salittleoutoffocus?
Q:Whatdoesthewomanimply?
(13)
A.Thephotographisnotgoodenoughtosend.
B.ThephotographwasnottakenattheGrandCanyon.
C.TheyalreadysentMaryaphotographoftheirvacation.
D.Sendingpicturesthroughthemailistooexpensive.
36.(29)
A.Rudeness.B.Nervousness.C.Ignorance.D.Convention.
37.(36)
A.Becausetheyhaveto.
B.Becausetheywantto.
C.Becausetheirchildrenwantthemto.
D.Becausetheydon'tknowhowtospendtheirsparetime.
38.
【B9】
39.(24)
A.Becauseshewantstostudyforatest.
B.Becauseshewantstogoswimmingatthestudentcenter.
C.Becauseshehastodoresearchinthelibrary.
D.Becausesheisnotinterestedintheman.
40.(28)
A.Shemeanttoaskthecrewwheretheladieslavatorywas.
B.ShewantedtowatchTV.
C.Shetookitfortheladies'lavatory.
D.Shewantedtotalktothecaptain.
三、4.ReadingComprehension(ReadinginDepth)(20题)41.
FromDrRattan'spointofview,theresultsofcalorierestrictionintheCALERIEstudy______.
A.weredoubtablewhethertheywerevalidornot
B.didnotshowtheeffectinpreventingage-relateddiseases
C.failedtoprovetheeffectinincreasingaveragelifespan
D.couldnottestifytheeffectinchangingmaximumlifespan
42.Itistreeaboutthemediamentionedinthepassagethatthey______.
A.usedtosellandbuyeachotheringreatnumbers
B.aretradingeachotheringreaternumberstoday
C.usedtobecontrolledbytwonetworks--ABCandNBC
D.havestoppedthetrendofacquisitionsinthe1990s
43.Nowadaysintheschools______.
A.self-esteemisemphasizedastheultimategoalofone'spursuit
B.theself-esteemmovementhaslostitsmomentum
C.theideaofself-esteemboostsrealachievement
D.emphasisinself-esteemhelpstopromotetheideaofequality
44.SectionB
Directions:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Youshoulddecideonthebestchoice.
Theethical(伦理的)behavior.inindustrializedcountrieshasbeenputunderpressure.DuringthelastyearinNorwaywehaveseencaseswherelargefoodcompaniespaydistributorstokeepawaycompetitorsandsupplierspayingpersonalbenefitstomanagersofshopstogetownproductsbetterpromotedandpositionedintheshops.Theareaswheretheethicsdoesnotmanagetosetfairlimits,thelawmakersgetunderpressuretogivenewlawstocopewiththeunfairbehavior.
Theexamplesmentionedhavebeengivengoodcoverageinthemedia.However,anotherareawithquiteanotherdimensioniscontinuouslyrunningwithoutlargereportsinthemedia.InthisareaoneindividualiskilledunnecessarilynearlyeverythirddayalltheyearroundinNorway.Thecoveragemaybeapictureinthelocalnewspaper.Isthisduetounethicalbehavior.ormaybeduetothelackofactionbytherealresponsiblebodythatthiskillingisgoingonandon,yearafteryear?Arethekillingsonourroadsjustaccidentswehavetoacceptduetothedriversownactions?
WhatcouldbedoneiftheresponsiblebodyinrealitywantedtoimprovethesafetyonNorwegianroads?Maybethepossibleactionsasfollowsarehelpful.
Alarge-scaleprofessionalcampaignisneededfortrafficsafetyontheroads.Thecampaignwouldhavetobeperformedbyhighlyprofessionalpromotivecompaniesthroughallnormalcanalsaspapers,radio,TV,etc.Also,wewillestablishacampaignperson"Rusken"."Rusken"hasallthebadattitudesrelatedtoroadsafety.Nooneshouldwanttobea"Rusken".Thechildrenorwife/husbandinthecarshouldnotwanttohavea"Rusken"driver.Thesafesmoothdrivingshouldbetheaimforeverybodyontheroad.
Anannualcompetitioncouldbeintroducedandconnectedwithan"Oscar"prizeforthecarmodelhavingleastinjured.Paralleltothisanegative"Oscar"couldbegiventothecarmodelhavingrelativelythehighestnumberofinjuriesduringthelastyear.Clearcriteriaforbestandworsthavetobeestablishedinadvance.TheinjurystatisticsrelatedtocarmodelscouldbemadeopenavailableonInternet.
Inadditiontocarmodels,themedia,thejournalistandthepromotiveagencyhavinggiventhebestattitudetowardssafedrivingduringthelastyearshouldgettheir"Oscar"aswell.Theworstinrelationtoroadsafetycouldgetanegative"Oscar".
Ihetrafficisnotdone,themainresponsibilityforthisislyingwithintheParliamentandtheDepartmentofTransport.Themediamayhelptoputtheagendaonthetable.Themedia,however,ispartlypaidbytheadvertisementsfromthecarindustry.Thisillustratesthegeneralethicalproblembetweenmoneyandothervaluesinthesociety.
Theethicalbehavior.refersto______.
A.theindustrializedcountries'policy
B.thelawinNorway
C.thefaircompetitionincommerce
D.themanagersoffoodfactories
45.SectionA
Directions:Inthissection,thereisashortpassagewith5questionsorincompletestatements.Readthepassagecarefully.Thenanswerthequestionsorcompletethestatementsinthefewestpossiblewords.
Abouttenmenineveryhundredsufferfromcolorblindnessinsomeway;womenareluckieronlyaboutoneintwohundredisaffectedinthismanner.Therearedifferentformsofcolorblindness.Amanmaynotbeabletoseedeepred.Hemaythinkthatred,orangeandyellowareallshadesofgreen.Sometimesapersoncannottellthedifferencebetweenblueandgreen.Inrarecasesanunluckymanmayseeeverythinginshadesofgreen--astrangeworldindeed.
Incertainoccupationscolorblindnesscanbedangerousandcandidatesaretestedmostcarefully.Forexample,whenfightingatnight,soldiersuselightsofflarestosignaltoeachother.Agreenlightmaymean"Advance"andaredlightmaymean"Danger!Keepback!"Youcanseewhatwillhappenifsomebodythinksthatredisgreen!Colorblindnessinhumanbeingsisastrangethingtoexplain.Inasingleeyetherearemillionsofverysmallthingscalled"cones".Thesehelptoseeinabrightlightandtotellthedifferencebetweencolors.Therearealsomillionsof"rods"buttheseareusedforseeingwhenitisnearlydark.Theyshowusshapebutnotcolor.Waituntilitisdarktonight,andthengooutside.Lookroundyouandtrytoseewhatcolorsyoucanrecognize.
Birdsandanimalswhichhuntatnighthaveeyeswhichcontainfewornoconesatall,sotheycannotseecolors.Asfarasweknow,batsandadultowlscannotseccolorsatallonlylightanddarkshapes.Similarlycatsanddogscannotseecolorsaswellaswecan.
Insectscanseeultra-violetrayswhichareinvisibletous,andsomeofthemcanevenseeX-rays.Thewingsofamothmayseemgrayanddulltous,buttoinsectstheymayappearbeautiful,showingcolorswhichwecannotsee.Scientistsknowthatthereareothercolorsarounduswhichinsectscanseebutwhichwecannotsee.Someinsectshavefavoritecolors.Mosquitoeslikeblue,butdonotlikeyellow.Aredlightwillnotattractinsectsbutabluelampwill.
Accordingtothepassage,colorblindnesscanbedangerousincertainoccupationslike______.
46.
Whatisthe"greenhouseworlds"?
47.
Whatdoeshumansocietydependontomakeprogressaccordingtotheauthor?
48.
Accordingtothepassage,insectscansee______whichhumanscan'tsee.
49.
Theauthorwasmostcriticalofshareholdersbecausetheywereunawareof______.
50.
【C5】
51.
Theauthor'sattitudetowardswestwardexpansionis______.
A.stronglycondemning
B.mildlycriticizing
C.indifferent
D.supporting
52.SectionA
Directions:Inthissection,thereisashortpassagewith5questionsorincompletestatements.Readthepassagecarefully.Thenanswerthequestionsorcompletethestatementsinthefewestpossiblewords.
BasicEnglishisEnglishmadesimplebylimitingthenumberofitswordsto850,andbycuttingdowntherulesforusingthemtothesmallestnumbernecessaryfortheclearstatementsofideas.Andthisisdonewithoutchangeinthenormalorderandbehavior.ofthesewordsineverydayEnglish.Thisisthefirstpointtomakeclear.BasicEnglishhasonly850wordsanditsrules,butitkeepstotheregularformsofEnglish.Andthoughitisdesignedtogivethelearneraslittletroubleaspossible,itisnomorestrangetotheeyesofitsreadersthantheselines,whichare,infact,inBasicEnglish.
ThesecondpointtomakeclearisthatevenwithsosmallawordlistandsosimpleastructureitispossibletosayinBasicEnglishanythingneededforthegeneralpurposesofeverydayexistence—inbusiness,trade,industry,science,medicalwork—inalltheartsofliving,inalltheexchangesofknowledge,desires,beliefs,opinions,andnews,whicharethechiefworkofalanguage.Itistruethatifwegooutsidethefieldofgeneralinterestsandintospecialbranchesofthesciences,theartsorthetrades,weshallhavetohaveotherwords,notlistedamongthe850.Butthesensesoftheseotherwordsmaybemadeclearinfootnoteswiththe850,byteachinggiventhroughBasicEnglish,ortheymaybeseenintheGeneralBasicEnglishDictionary,which,usingonlythebasicwords,givesthesensesoftwentythousandwords.InthiswayBasicEnglishbecomesaframeworkinwhichwordsneededforspecialpurposestaketheirplace,andfromandthroughwhichtheytaketheirsenses.Aknowledgeofthe850andoftherulesbywhichtheyareputtogetherisenough,however,fortalkandwritingonalleverydaygenerallevels.Itwouldbeclearbutnotverybrightreading.Thesameword—becausethereareonly850ofthem—wouldkeepcomingbackagainandagain.AreaderwhohastherestoftheEnglishLanguagemaygetalittletiredofBasicWritingafteratime.
ThethirdmostimportantpointaboutBasicEnglishisthatitisnotmerelyalistofwords,governedbyaminimumapparatusofessentialEnglishGrammar,butahighlyorganizedsystemdesignedthroughouttobeaseasyaspossibleforalearnerwhoistotallyignorantofEnglishorofanyrelatedlanguage.Itisalanguageforalltheworld,notjustforthosewhohappentohavesomerelatedlanguageastheirmothertongue.
Whatdoes"theselines"inParagraph1referto?
53.Scientistsarenotthinkingofusingmusselstoproducethesupergluemainlybecauseof______.
A.thepossiblemass-productionofthesuperglue
B.theirconcernaboutthecostofcollectingmussels
C.theirconcernabouttheextinctionofthespecies
D.theworld'slimiteddemandforthesuperglue
54.Scientificconsensusisararething.Buttheexpertsagreealmostunanimouslyononething—humankindischangingtheearth'snaturalenvironment,andquickly.Asanexpandingglobalpopulationspreadseverfurtheraroundtheglobe,habitats(栖息地)arebeingdestroyedtomakeroomformushroomingtownsandcities,allthewhileconsumingmoreandmoreoilandotherfossilfuels.
Inmanywayshumanshaveneverhaditsogood:averagegloballifeexpectancyhasshotupbyalmost20yearsinthepasthalf-century,mostcountriesaregettingricherbythedayandmedicalsciencehasbeatenscoresofpreviouslyfatalconditions.Andyetthereareincreasingfearsthatthishuman-dominatedphaseoftheearth'slonghistorydocsmuchharmtotheearth.ThestatisticscompiledbytheUnitedNationsEnvironmentProgramme,orUNEP,canmakefordepressingreading.Speciesarebecomingextinctataspeedaround100timesfasterthanwouldhappennaturally.Almosthalftheworld'soriginalforests—thehabitatwhichsupportsaroundtwo-thirdsofthewildlife—hasdisappearedin.thepastthreedecades.Farminglandiseatenbydesertsaround30timesfasterthaneverbeforeseen,whileairpollutionisthoughttokill50,000annuallyintheUnitedStates.
Mostseriouslyofall,theclimateappearstobechanging.Thebillionoftonsofcarbondioxidepumpedintotheearth'satmosphereannually,alongwithotherso-calledgreenhousegases,iscausingtheearthtoheatup,virtuallyallenvironmentalscientistsagree.Suchachangewouldhaveawiderangeofimpactsonthenaturalworldandhumansociety.
Environmentalcampaigners—joinedbyincreasingnumbersofpoliticians—wanturgentaction."Wereallyshouldbeveryalarmedasaglobalcommunity,"saysTonyJuniper,directorofgreengroupFriendsoftheEarth,"Westillhavetimetodosomethingaboutthesethings,buttimeisnowextremelyshort.Thereisanincreasinglyconfidentassessmentaboutthelikelihoodoftheconsequencesofglobalclimatechange,andthetimescalesthatwehavetodealwithit."
Theinternationalresponsehasbeenmixed.The1997Kyotoprotocol(协议)committedindustrializednationstocuttheircombinedgreenhousegasemissionsbelow1990levelsby2008-12,butwasunderminedaftertheUnitedStates,thebiggestglobalpolluter,declinedtoapprovethedeal.WashingtonopposedKyoto'smethodsratherthanitsaims.Itacknowledgedsomethingneedstobedone,callingforthecountrytocureitsaddictiontooil.Whatevertheconsensusondiagnosis,thereislittleagreementonaction,somethingtheUNEPwarnsmustchange.Totackleglobalwarming,itwarnsthatonlyafundamentalchangeinlifestyle.andeconomy,withasignificantmoderationintheconsumptionofresources,canbringanyhopeofasolution.
Bysayingthat"humanshaveneverhaditsogood"(Linel,Para.2),theauthormeansthatpeoplenowadays______.
A.enjoyamuchbetterlifethanbefore
B.hasreachedthepeakofcivilization
C.aremorepowerfulinchangingtheearth
D.liveinaworldwithmoreadvancedmedicalscience
55.
Thesecondparagraphusesfactstodeveloptheideathat______.
A.aplantneedsmorewaterthanisfoundinitscomposition
B.aplantefficientlyutilizesmostofthewateritabsorbs
C.thestrongerthewind,themorewatervaportheplantloses.
D.carbondioxideistheessentialsubstanceneededforplantdevelopment
56.WhichofthefollowingstatementsisTRUEaccordingtoPara.1?
A.PartoftheeventsoccurringontheuniversitycampusatBerkeleyweregivennationalmediacoverage.
B.The1989SanFranciscoearthquakehasn'tbeencoveredbythevideoprogramme.
C.Electronicmediacanlimitone'scontactwiththeworld.
D.Thoselivingfarawayfromacertaineventcannothaveperceptionofrealities.
57.InancientGreece,theOlympicGames______.
A.weremerelynationalathleticfestivals
B.wereinthenatureofanationaleventwithastrongreligiouscolor
C.hadruleswhichputforeignparticipantsinadisadvantageousposition
D.wereprimarilynationaleventswithfewforeignparticipants
58.Whatisthepassagemainlyabout?
A.Thewarningagainst"passivedrinking".
B.Differentattitudestowardssmokinganddrinking.
C.TheglobalwaronalcoholabuselaunchedbyWHO.
D.Similaritiesanddifferencesbetweensmokinganddrinking.
59.TheforestfromwhichMantakeshistimberisthetallestandmostimpressiveplantcommunityonEarth.IntermsofMan'sbrieflifeitappearspermanentandunchanging,savefortheseasonalgrowthandfalloftheleaves,buttoforesteritrepresentstheclimaxofalongsuccessionofevents.
Nowoodedlandscapeweseetodayhasbeenforestforalltime.Plantshaveminimumrequirementsoftemperatureandmoistureand,inagespast,virtuallyeverypartofEarth'ssurfacehasatsometimebeeneithertoodryortoocoldforplantstosurvive.However,assoonasclimaticconditionschangeinfavourofplantlife,afascinatingsequenceofchangesoccurs,calledaprimarysuccession.
Firsttocolonizethebarrenlandarethelowlylichens,survivingonbarerock.Slowly,theacidspreducedbytheseorganismscracktherocksurface,plantdebrisaccumulates,andmossesestablishashallowroot-hold.Fernsmayfollowand,withshortgrassesandshrubs,graduallyform.acoveringofplantlife.Rootsprobeevendeeperintothedevelopingsoilandeventuallylargeshrubsgivewaytothefirsttrees.Thesegrowrapidly,cuttingoffsunlightfromthesmallerplants,andsoonestablishcompletedomination-closingtheirranksandformingaclimaxcommunitywhichmayendureforthousandsofyears.
Yeteventhiscommunityisnoteverlasting.Firemaydestroyitoutrightandsettlersmaycutitdowntogainlandforpastureorcultivation.Ifthelandisthenabandoned,asecondarysuccessionwilltakeover,developingnmchfasteronthemorehospitablesoil.Shrubsandtreesareamongtheearlyinvaders,theirseedscarriedbythewind,bybirdsandlodgedinthecoatsofmammals.
Foraslongasitstandsandthrives,theforestisavastmachine,storing
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