2021-2022年辽宁省朝阳市大学英语6级大学英语六级重点汇总（含答案）

2021-2022年辽宁省朝阳市大学英语6级大学英语六级重点汇总（含答案）学校:________班级:________姓名:________考号:________

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

Manypeoplehaveweightlosssurgerypossiblybecauseoverweightmaygiverisetodeath.

A.YB.NC.NG

2.

Thedecadeofthe1960swascharacterizedbytheever-growingsuspicionofthecivilizedworld'sattempttocontrolnaturethroughtheuseoftechnology.

A.YB.NC.NG

3.

Inpublic-relationssector,thejobtitlethatreflectsthedualityoftherequiredskillsetsis______.

A.computer-networkadministrator

B.interactivecreativedirector

C.chiefexecutiveofficer

D.e-commercespecialist

4.

AccordingtoBono,inlateralthinkingweshouldn'tdealwithproblems______.

A.inanunpredictedway

B.fromvariousanddifferentperspectives

C.bysuddenchangesinthewayofthinking

D.byfollowingtheregularlogicandsequence

5.

Birthratesdecline,andmortalityofyoungandadultsincreaseswhenthepopulationapproaches______.

6.

ItismentionedthatAncientRomewasruledby______.

7.

Mr.TataretiredpeoplerunningthemainTatabusinessesinorderto______.

A.mitigatetheblow

B.sellstakesinsomecompanies

C.strengthencontrolofcompanies

D.makethemanagementofportfolioeasier

8.

Insteadofincreasingkilojouleintake,apregnantwomanshouldconcentrateonincreasingher______.

9.

Thepurposeoftheauthor'sinvestigationistostudy______.

A.whypeopletryhardtoseizeluck

B.whypeopleworshipgodssinceancienttime

C.whysomepeoplearealwaysluckyandothersaren't

D.whypeoplearefeelingluckywhileworshipinggods

10.

"Notinmybackyard"impliesthatmanycountries'concernfortheproblemofe-wasteisonlylimitedtotheprotectionof______insteadoftheglobalone.

11.

Disposableproductsarenotbeneficialtothedevelopmentofmodernindustry.

A.YB.NC.NG

12.ADoseofReality

MajorRealityCheck

WhenthepainrelieverVioxxwaswithdrawnfromthemarketlastfallaftertheannouncementthatitincreasedpatients'riskofheartattacksandstrokes,millionsofAmericanspanicked.Thesometimessensationalizedheadlinesdidn'thelp.Peoplewondered,"ShouldItrustmydoctor?""CouldamedicationthatIthoughtwouldhelpmeactuallykillme?""Isourdrugsafetysystembroken?"

Suddenly,adsforthedrugwerereplacedwithadslookingforVioxx"victims".Lawfirmsacrossthenationbeganrecruitinganyonewhohadevertakenthedrugasplaintiffs(原告)forclass-action(公诉)suits.Merck,thecompanythatdevelopedthedrug,couldbeliableforbillionsofdollars,makingitoneofthecostliestliabilitycasesever.Nosurprise,then,thatMerck'sstockplummeted(垂直落下)40percentinjustsixweeks.

Buttherealcostwasevengreater.NotonlydidpatientsstoptakingVioxxbut,doctorssay,manypeoplestoppedtakingtheirothermedicines,too-sometimesputtingtheirhealthatseriousrisk.

Vioxxwasthefirstpebbleinthepharmaceuticalrockslide.Soon,accusationsaboutaspateofotherdrugsweremakingheadlines,includingallCOX-2inhibitorswhich,likeVioxx,relievepain.Thechargesdidn'tstopthere.TheFDAwasaccusedofsimplyrubber-stampingnewdrugs;drugcompanieswereblamedforhidinginformationaboutunsafeproducts;andtheefficacy(功效)ofclinicaltrialsthatdidnotrevealhowlargenumbersofpeoplewouldreactwasquestioned.Butonequestionthatwasrarelyaskedcoulddeterminewhetherornotpharmaceuticalcompaniescontinuetodevelopandproducebreakthroughmedicationsthatcansaveorextendlivesandhelppeoplelivewithoutpain.Thequestion:doAmericansexpectdrugstoberisk-free?And,ifsomeonesuffersabadreaction,willlawyersratherthandoctorsbethefirstpeoplewecall?

PanicoverPills:Overreaction?

Duringthetan-yearperiodbetween1994and2004,theFDAapproved321completelynewdrugs(thisdoesn'tincludeapprovalsforchangestoexistingmedicines),bringingthetotaltomorethan10,000drugproductsonthemarket.Duringthatsameperiod,eightdrugswerewithdrawnforreasonsofsafety,suchasthedietdrugfenfluramine(fen-phen,associatedwithheart-valvedisease)andtheallergydrugSeldane(linkedtoheartarrhythmias).ButtheVioxxrecallcreatedashockwavefortheAmericanconsumerlikenoother.Manypeoplehadcometodependontheir"meals",andtheyexpectedthemtobesafe,too,especiallywhentheycostsomuch.Prescriptiondrugsaccountfor,somesay,thefastestgrowingsegment(aboutone-tenth)ofallhealthexpenditures,withsomespecialtydrugscostinghundredsofdollarsperdose.

"WithVioxx,therealshockandoutragecamewhentherewasasuggestionthatpeopleinauthoritymayhaveknownabouttheseharmfulsideeffectsandnotsharedthemwithdoctorsorthepublic,"saysAnneWoodbury,chiefhealthadvocatefortheCenterforHealthTransformation,athinktankfoundedbyNewtGingrich.Itmadepeoplequestiontheirfaithinthepharmaceuticalindustry,federalregulatorsandphysicians-thosewetrusttomakesureourdrugsaresafe.Before,takinganewlyprescribedpillwithaslugofwaterwasasroutineasbrushingyourteeth.Formanypeople,thisisnolongerthecase.

Peoplehavereasontoworry.Inclinicaltrialdatasubmittedto-theFDA,Vioxxshowednoconnectiontoheartproblems.ThedrugwasapprovedinMay1999.ButafterVioxxhitthemarketandgrewinpopularity,heartproblemswererevealed-lotsofthem.Tensofthousandsofpeoplemayhavebeenaffected,andMerckwasaccusedofhidingthatinformation.

"Thesystemisnotperfect,"commentsMarianneJ.Legato,MD,professorofclinicalmedicineatColumbiaUniversityCollegeofPhysi

A.YB.NC.NG

13.

Thewallsframingthehighwaysareusefulindecreasingnoisepollution,because______.

14.

Theproblemwithtaughenedglassisthatitisdifficulttoinstallinashortperiodoftime.

A.YB.NC.NG

15.

RaymondKurzweilthinksthatultrasmartmachinesare______.

A.unimaginable

B.life-threatening

C.advantageous

D.unacceptable

16.HomeIsWheretheHurtIs

Beingforcedintoflighttotallydisruptsthelivesoftheinternallydisplaced,exactlyasitdoestorefugees.Butunlikemanyrefugees,theworld'smillionsofinternallydisplacedpersonsoftenhavenowheretoturn.Theyremaintrappedinthesameunsafeenvironmentfromwhichtheytriedtoflee.Insituationsofinternalstrife(冲突),bydefinition,theciviliangovernmentfunctionspartiallyornotatall;andthecivilianpopulationisignoredortreatedwithhostilitybybothsides.

AdefinitionsubmittedtotheU.N.CommissiononHumanRightsdefinestheinternallydisplacedas"personsorgroupsofpersonswhohavebeenforcedtofleetheirhomesorplacesofhabitualresidencesuddenlyorunexpectedlyasaresultofarmedconflict,internalstrife,systematicviolationsofhumanrightsornaturalorman-madedisasters,andwhohavenotcrossedaninternationallyrecognizedStateborder."

Today,thereareanestimated30millioninternallydisplacedpeopleintheworlddoublethenumberofrefugees.Inmanyplaces,theyareallbutforgottenbytheinternationalcommunity.

AlthoughtherearefewrefugeesinLatinAmerica,thereareupto3millioninternallydisplacedpersonsintheregion,includingasmanyas480,000inPeruand600,000inColombia.Inbothcountries,acombinationofpoliticalandsocio-economicfactors,suchasexcessivelyunequalincomedistribution,drug-traffickingandheavyinvolvementofthearmyinthepoliticalscene,haveresultedinhighlevelsofviolenceandaclimatethatfostershumanrightsabuses.Whethermanifestedasanongoingconflictbetweenthearmedforcesandthearmedopposition(thecaseofPeru),oraconstantarmedstrugglebetweenrebelandparamilitarygroups(thecaseOfColumbia),violencehascausedthedisplacementofhundredsofthousandsofruralpeasantsandnativepeople.Theinternallydisplacedoftenleadaverystableexistence,andtheyarehighlygratefulforanyonewhopaysattentiontotheirplight(averybadsituationthatsomeoneisin).

Delia,ofPeru'sAshaninkapeople,hasbeendisplacedforthepasteightyears.Now,homelessandhelpless,Deliaandherpeoplehavetodependonthegoodwillandcharityoftheirremoterelativesandoftheoccasionalnon-governmentalorganization(NGO).IthasbeenastruggleforDelia,whohastriedtoobtainbettereducationfacilitiesforthechildrenandtopromotesmallhandicraftsprojects.Andshetriestoshieldhercommunityfromthesurroundingconflictbyopposinganyinvolvementwiththearmedoppositionorwiththerondas(acivildefenseunitthatfightsagainsttheSendero).Thisneutralposition,inthecontextoftheconflict,isnotapopularonewitheitherside.Totheirwayofthinking,oneiseitheraronderooraSendero;thereisnomiddleroad.

WomenhavebeenthedrivingforceineffortstomaintainsomesemblanceofnormallifeinthePeruvianAndes.There,hundredsofthousandsofpeople,mostlyQuechuaspeakers,weredisplacedoverthelast10years.Husbandswere"disappeared"orkilled,andsonshadtojointhearmy.Thewomenhadtogathertheirchildrenandfleetourbancenterswheretheycouldmeltintothepoverty-strickenanonymityofashantytown(以临时搭盖的陋屋为主的地区).Nowtheyliveinshackswithnowater,noelectricityandnosewagesystem.Thechildrengetlittleschoolingandspendlongdaysplayinginthedirt.Povertydiseaseandunemploymentmakelifenearlyintolerable.Butdisplacedwomenhavenotbeenidle.Theyhaveorganizedsoupkitchens,"mothers'clubs"andhandicraftassociationstosupporteachotherandimprovelivingconditions.Irma,oneofthewomenwetalkedwiththinksthatsoonsheandhersisterswillbeabletogobackhome."Butwe'dlikeourgovernmentandtheworldtogiveusahand,"shesaid.

Despitethemanyhardships,the

A.YB.NC.NG

17.America'sBrainDrainCrisis

LosingtheGlobalEdge

WilliamKurtzisaself-describedcomputergeek.Amoreaptdescriptionmightbecomputergenius.Whenhewasjust11,Kunzstartedwritingsoftwareprograms,andby14hehadcreatedhisownvideogame.AsahighschoolsophomoreinHouston,Texas,hewonfirstprizeinalocalsciencefairforadataencryption(编密码)programhewrote.Inhissenioryear,hetooktopprizeinaninternationalscienceandengineeringfairfordesigningaprogramtoanalyzeandsortDNApatterns.

KunzwentontoattendCarnegieMellon,amongthenation'shighest-rankeduniversitiesincomputerscience.AftercollegehelandedajobwithOracleinSiliconValley,writingsoftwareusedbycompaniesaroundtheworld.

Kunzlookedsettobecomeastarinhisfield.Thenhegaveitallup.

Today,threeyearslater,KurtzisinhisfirstyearatHarvardBusinessSchool.Heleftsoftwareengineeringpartlybecausehisearningpotentialpalednexttofriendswhoweregoingintolaworbusiness.Healsoworriedaboutjobsecurity;especiallyasmorecompaniesmovetheirprogrammingoverseastolowercosts."Everytimeyou'reaskedtotrainsomeoneinIndia,youthink,'AmItrainingmyreplacement?'"Kunzsays.

Thingsareturningoutverydifferentlyforanotherstandoutinengineering,Qing-ShanJia.AstudentatTsinghuaUniversityinBeijing,Jiashinesevenamonghisgiftedcohorts(一群人)ataschoolsometimescalled"theMITofChina".HeconsideredapplyingtoHarvardforhisPhD,butdecideditwasn'tworthit.

Hisuniversityisinvestingheavilyincutting-edgeresearchfacilities,endattractsanimpressiverosterofinternationalprofessors."Icangetaworld-classeducationhereendstudywithworld-classscholars,"Jiasays,

Thesetwosnapshots(快照)illustratepartofadeeplydisturbingpicture.Inthedisciplinesunderpinningthehigh-techeconomy-math,scienceandengineering---Americaissteadilylosingitsglobaledge.Thedepthandbreadthoftheproblemisclear:

-SeveralofAmerica'skeyagenciesforscientificresearchanddevelopmentwillfacearetirementcrisiswithinthenexttenyears.

-Lessthan6%ofAmerica'shighschoolseniorsplantopursueengineeringdegrees,down36%fromadecadeago.

-In2000,56%ofChina'sundergraduatedegreeswereinthehardsciences;intheUnitedStates,thefigurewas17%.

-ChinawilllikelyproducesixtimesthenumberofengineersnextyearthanAmericawillgraduate,accordingtoMikeGibbonsoftheAmericanSocietyforEngineeringEducation.Japan,withhalfAmerica'spopulation,hasminted(铸造)twiceasmanyinrecentyears.

"MostAmericansare'unawareofhowmuchsciencedoesforthiscountryendwhatwestandtoloseifwecan'tkeepup,"saysShirleyAnnJackson,presidentofRensselaerPolytechnicInstituteandchairoftheAmericanAssociationfortheAdvancementofScience.DavidBaltimore,presidentoftheCaliforniaInstituteofTechnologyandaNobellaureate,putsitbluntly:"Wecan'thopetokeepintactourstandardofliving,ournationalsecurity,ourwayoflife,ifAmericansaren'tcompetitiveinscience."

TheCrisisAmericansCreated

InJanuary2001,theHart-RudmanCommission,taskedwithfindingsolutionstoAmerica'smajornationalsecuritythreats,concludedthatthefailuresofAmerica'smathandscienceeducationandAmerica'ssystemofresearch"poseagreaterthreat...thananypotentialconventionalwar."

Therootsofthisfailurelieinprimaryandsecondaryeducation.Thenationthatproducedmostofthegreattechnologicaladvancesofthelastcenturynowscorespoorlyininternationalsciencetesting.A2003surveyofmathandscienceliteracyrankedAmerican15-year-old

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18.

Thesharpincreaseinthenumberofshareholdersattheendof1984wasdueto______.

19.

Dr.Dorishadspent15yearson______.

A.beingaweightcounselor

B.writingherbook

C.studyingpsychology

D.beingondiet

20.

Peoplewhoarebuyingtheirfirstbicycleareadvisedtospendasmuchmoneyonabicycleastheycan

A.YB.NC.NG

二、3.ListeningComprehension(20题)21.【B8】

22.(25)

A.HeisJane'sboyfriend.

B.HeisJane'sfinancialconsultant.

C.HeandJaneareschoolmates.

D.Heworksintheloansectionofabank.

23.(46)

24.(42)

25.(15)

A.Thewomannevertravelsbyplane.

B.Bothspeakersfeelnervouswhenflying.

C.Themanthinkstravelingbyairisquitesafe.

D.Thespeakersfeelsadabouttheseriouslossoflife.

26.(28)

A.Itmustbetrainedsoitwon'tbite.

B.Itneedsmoreloveandcare.

C.Itdemandsmorefoodandspace.

D.Itmustbelookedaftercarefully.

27.

【B7】

28.听力原文：M:Henryiscertainlythefunniestpersoninclass;hecanalwaysmakeeveryonelaugh.

W:IthinkIstillhavetogetusedtohissenseofhumor.

Q:Whatdoesthewomanmean?

(18)

A.ShethinksHenryisnotfunnyenough.

B.SheenjoysHenry'shumoragreatdeal.

C.ShemustlearntounderstandHenry'shumorbetter.

D.Shedoesn'tappreciateHenry'shumor.

29.听力原文：M:Willthatbecashorcharge?

W:IwanttopaybycheckifImay.

M:Certainly.That'scash,then.

W:Cash?

M:Yes.Bothmoneyandchecksareconsideredcash.Onlycreditcardsarecharge.

W:Oh.

M:JustmakethecheckouttotheFamilyStore.

W:Okay.

M:AndI'llneedtwopiecesofidentification.Adriver'slicenseandamajorcreditcard.

W:Well,here'smydriver'slicense,Idon'thaveanychargecards.

M:Ineedtwonumbers.YourstudentnumberisontheID,isn'tit?

W:Yes,itis.Doyouneedanythingelse?

M:Justputyourtelephonenumberonthefrontofthecheck.

W:Okay.

M:Good.Nowletmegiveyouyourlicense,yourID,andyourpackage.AndthankyouforshoppingattheFamilyStore.

W:Thankyou.

(20)

A.Tohelpthewomanmakeapurchase.

B.Torequestthewoman'sidentification.

C.ToshowthewomanforacourseatCityCollege.

D.Toregisterthewomanbowtomakeoutacheck.

30.

【B9】

31.听力原文：W:Whyareyouleavingsoearly?Themoviedoesn'tstarttillseven.

M:Idon'twanttobeatthetrafficthere.It'sanightmareontheexpresswayduringrushhour.

Q:Whatdoesthemanmean?

(17)

A.Hedoesn'tusuallygetupat7:00.

B.Hedoesn'tknowthewaytothetheater.

C.Hewantstogoearlytoavoidatrafficjam.

D.Heleavesthetheaterbeforethemovieisover.

32.听力原文：M:Couldyoudomeafavor,Anna?WehadaGermanpatientyesterdayandwecan'tcommunicatewithhim.NobodyinthehospitalspeaksGerman.

W:Allright,let'sseeifIcanbeofhelp.

Q:Whatisthewomangoingtodo?

(13)

A.Toactasaninterpreter.

B.Tocheckthepatientasadoctor.

C.Toworkasnurseinthehospital.

D.Tochatwiththepatient.

33.

【B3】

34.听力原文：Someofthemostpracticallessonscomingoutofresearchinpsychologyareintheareaofmemory.Peopleask,whycan'tIrememberthattermfromthephysicschapterorthatthelibrarybooksaredue?

Manypeople,memorymaybeweak,becausetheydon'tuseitenough.It'slikeamuscle.Ifyoudon'texerciseit,itwon'tgetstrong.That'swhyit'simportanttokeepourmindactive,tokeeponlearningthroughoutourlife.Wecandothisbyreading,playingmemorygamesandseekingoutnewexperiences.It'smyguess,though,thatthelackofstimulationisn'taproblemforstudentslikeyou.Morelikely,thelivesyoulivearesobusyandstimulatingthatthisinitselfmaysometimesinterferewithlearning.LateronIwilldiscusshowinformationisrecalledfrommemory.But,first,theinformationneedstoberecorded,inotherwords,learned.Andforbusypeoplelikeyouandme,thatiswheretherealproblemoftenlies.Ifwearedistracted,orwearetryingtothinkwhatwearegoingtodonext,theincomingmessagejustmightnotbegettingrecordedeffectively.Andthatleadstothefirsttipforstudents'whowanttoimprovetheirmemories.Giveyourfullattentiontotheinformationyouhopetoretain.Researchclearlyshowstheadvantagesofthis,andalsoofactivelearning,ofconsciouslytryingtovisualizeanewfact,perhapstomakeamentalpicture,evenawildridiculousone,sothenewfactwillstickinourmemory.Letmeillustratethatforyouherealittlemoreconcretelythisevening.

(30)

A.Factorsthataffecttheabilitytomemorize.

B.Theinfluenceofchildhoodmemoriesoiladulthood.

C.Aproposalforfuturepsychologicalresearch.

D.Benefitsofabusylifestyle.

35.(33)

A.Apicture.

B.Conclusions.

C.Thelessonasawhole.

D.Vocabularylists.

36.(18)

A.Themanandthewomanwillfliparoundtofindaprogram.

B.ThemanandthewomanwilllookthroughtheTVGuidefirst,

C.Thewomanwillfinishthespecialbeforeswitchingthechannel.

D.ThemanwillwatchaquizshowonChannel14immediately.

37.

【B11】

38.(32)

A.Thosewholiketalkingaboutcheerfulthingslivetogether.

B.Thosewhoavoidtalkingaboutcheerfulthingsdiesooner.

C.Thosewholiketalkingabouttheirdiseaselivelonger.

D.Thosewhoavoidtalkingabouttheirillnesslivelonger.

39.听力原文：Wecanagreewithprimitivemanthatfoodisabasicneed,butwedifferfromhiminourfoodwantsbecauseofthewidevarietyoffoodwehaveavailablecomparedwithhim;wehaveawiderchoice.Takefruitforexample,notonlycanweenjoythefruitsgrowninhiscentury,butbecauseofmodernmethodsoftransportandfoodpreservation,wecanalsoenjoymorefruitsfromforeigncountries,whereasprimitivemanislimitedinhischoicetothekindsoffruitwhichactuallygrowwherehelives.

Howevertheydifferinsatisfyingtheirhunger,primitiveandcivilizedmenbothexperiencethebasicneedforfood.

Thesameistrueofthesecondofourhumanneeds.Clothingisnecessarytoregulatetheheatofourbodies.Sinceweliveinatemperateclimateweneedmoreclothesthanpeoplelivingintropicalconditions.Likewise,ourclothingneedstochangewiththeseasons.

Shelter,thethirdofourneeds,dependsupontheclimate,theskillofthebuilder,one'ssocialposition,andthematerialsavailable.Thesimpleshelterofprimitivemanwouldnotdoforus,andyetitsatisfieshisneeds.Thethree-bedroomsuburbanhouseoftheaveragefamilywouldnotbegrandenoughforarichfamily,andyetthemodernhousecontainsmanyofthematerialcomfortswhichweredeniedtotheKingsandQueensofold.

(33)

A.Foodisnolongerabasicneedforus,whileitwasforprimitivepeople.

B.Weeatawidevarietyoffood.

C.Wenolongereatfruitthatprimitivepeopleeverate.

D.Weeatmorefoodthanprimitivepeopledid.

40.

【B8】

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

【C7】

42.

Itcanbeinferredfromthepassagethat______.

A.Notallpeopleagreeonwhatthemacroeconomistssay.

B.Volkswagenwasfinedbecauseithasnarrowedpricedifferentials

C.Europeanswillnotusetheeurostobuygroceriesinafewyears

D.MiddlemencanbuycarsinItalyandsellinSpain

43.

BycloningMissy,MarkWesthusinhopesto______.

A.examinethereproductivesystemofthedogspecies

B.findoutthedifferencesbetweenMissyanditsclones

C.searchforwaystomodifyitstemperament

D.studythepossibilityofcloninghumans

44.

Thebestwaytodealwithstressisto______.

A.dothingsofourownaccord

B.trytolengthenourlife

C.becomeambitiousinbusiness

D.getmoreeustressandmeetlessdistress

45.

Inthe3rdparagraph,"...intheregionswhereitcouldbepracticed...",here,"it"refersto______.

A.increaseB.numberC.agricultureD.species

46.

Canyouuseseveralnounstoshowthemajorconcernsamongthedemonstratorsastothe______constructionofnuclearpowerplant?

47.(54)

48.IntheCaucasusregionoftheSovietUnion,nearly50outofevery100,000peoplelivetocelebratetheir100thbirthday,andmanydon'tstopat100.Bycomparison,inAmericaonly3peoplein100,000reach100.ButtheseSovietoldpeoplearen'talone.ThePakistaniHunzas,wholivehighintheHimalayaMountains,andtheVilcabambansoftheAndesMountainsinEcuadorseemtosharethesecretoflonglifetoo.

Thesepeoplesremainhealthyinbodyandspiritdespitethepassageoftime.Whilemanyolderpersonsinindustrialsocietiesbecomeweakandillintheir60sand70s,someSovietGeorgians,aged110to140,workinthefieldsbesidetheirgreat-great-grandchildren.Eventheideaofagingisforeigntothem.Whenasked,"Atwhatagedoesyouthend?"mostoftheseoldpeoplehadnoanswer.Severalreplied,"Well,perhapsatage80."Theveryyoungestestimatewasage60.

Whataccountsforthisabilitytosurvivetosucholdage,andtosurvivesowell?Firstofall,hardphysicalworkisawayoflifeforalloftheselong-livedpeoples.Theybegintheirlongdaysofphysicallaboraschildrenandneverseemtostop.Forexample,Mr.RustamMamedovis142yearsofage.Heremembershislifeexperiences:theCrimeanWarof1854;theTurkishWarof1878;theBolshevikRevolutionin1917.Hiswifeis116yearsold.Theyhavebeenmarriedfor90years.Mr.Mamedovhasnointentionsofretiringfromhislifeasafarmer."Why?WhatelsewouldIdo?"heasks.Oh,he'ssloweddownabit.Nowhemightquitforthedayafter6hoursinthefieldinsteadof10.Allthesepeoplegethealthfulrewardsfromtheenvironmentinwhichtheywork.Theyallcomefrommountainousregions.Theyliveandworkatelevationsof5,000to12,000feet(1,660to4,000meters)abovesealevel.Theairhaslessoxygenandispollution-free.Thisreduced-oxygenenvironmentmakestheheartandbloodvesselsystemstronger.

Anotherfactorthatmaycontributetothegoodhealthofthesepeopleistheirisolation.Toagreatextent,theyareseparatedfromthepressuresandworriesofindustrialsociety.

Inheritedfactorsalsoplaysomerole.Mostofthelongest-livedpeopleshadparentsandgrand-parentswhoalsoreachedveryoldages.Goodfamilygenesmay,therefore,beonefactorinlivinglonger.

Finally,althoughthesethreegroupsdon'teatexactlythesamefoods,theirdietsaresimilar.TheHunzas,Vilcabambans,andSovietseatlittleanimalmeat.Theirdietsarefulloffreshfruits,vegetables,nuts,grains,cheese,andmilk.Theynevereatmorefoodthantheirbodiesneed.

Itisclearthatisolationfromurbanpressuresandpollution,cleanmountainair,dailyhardwork,moderatediets,goodgenes,andayouthfulapproachtolifeallcontributetothehealthandremarkablelonglifeofallthesepeople.

Whatisthemainsubjectofthispassage?

A.Mr.Mamedov'slife.

B.Adescriptionofseveralsocietieswherepeoplelivealongtime.

C.Suggestionsforhowyoucanlivealonglife.

D.Hardphysicalworkisagoodwaytolivealongtime.

49.

Whatcanbeinferredabouttheauthor'sviewonthismajorincrease?

A.Hecannotdecideifitwillbeeffectivetopreventillegalimmigrations.

B.HebelievesthatthenumberofGuardtroopsislargerthannecessary.

C.HethinksthereisstillhopefortheHousetoapprovetheproposal.

D.lierespectsitsaimbutdoubtsitsfeasibility.

50.

Itcanbelearnedfromthepassagethat______.

A.itwillbedifficultforscientiststodevelopavaccineforwomen

B.HIVinfectswomeninthesamewaywithmen

C.mostwomenhavecontractedavarietyofHIVfromseveralmen

D.itwillbeeasytodevelopavaccineformen

51.

Accordingtothepassage,wirelessnetworkhasanadvantageoverthethreeproductsmentionedin______.

A.simplicityB.speedC.safelyD.price

52.(52)

53.MercedesestatecarsandFiatrunarounds(轻便小汽车)arebeingusedtotestupto22differentmonitorsdesignedtodetectifadriverisfallingasleepatthewheelandtriggeraseriesofdevicesdesignedtowakethemup.

Theaimoftheproject,fundedby￡4millionofEuropeanUnionmoneyaswellasprivateinvestment,istoreducetheestimated30%offatalaccidentswhicharecausedinEuropeeachyearbydriversdriftingoffatthewheel.Thetestcarshavebeenfittedwithinfraredcameraswhichmonitoreyemovement,touch-padsensorsthatmeasurethedriver'sgriponthesteeringwheelandchassis(汽车底盘)monitorswhichcheckforveer(转向).Shoulddriversstarttodozeofftheycanbequicklywokenbyasuddenblastofair-conditionedcoldair.Atthesametimeavibratingalarmwillsoundandthedriver'sseatwillbemadetoshake.

DaimlerChrysler,ownerofMercedes,aswellasFiat,willownthepatentoftheawakesystem,whichcouldbeinstalledincarsassoonasthisyear.IfthetrialsaresuccessfultheEUisconsideringintroducingadirectivewhichwouldmakethesystemcompulsoryinlong-distancelorries—aleadingcauseofroadaccidents.

Accordingtotransportdepartmentfigures,morethan300peopledieeachyearinBritaininaccidentsthoughttobecausedb