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2022年黑龍江省伊春市大學英語6級大學英語六級模擬考試(含答案)學校:________班級:________姓名:________考號:________
一、2.ReadingComprehension(SkimmingandScanning)(20題)1.
Theauthorsupportshisbeliefinthe"consequences"ofparentalpressureby______.
2.
Overathree-yearperiod,thepolicytoinstalltaughenedglassinstorefrontshasresuitedin______.
3.Whensleddogsgetsufficientcarefromtheowner,theyusually______.
A.fightwithotherdogs
B.aretooheavytorun
C.arefriendlyandgentle
D.developreliabilityontheowner
4.
GrowingGMcropsisinitially______butcheaperinthelongrun.
5.
Emergencyoperatorscanidentifythepreciselocationofcell-phonecallersthroughGPSsystemswiththeuseof______.
6.
Beforesigningthelease,youneedtomakesureitincludesthestatementthatyoucan______ifyouwishtodoso.
7.
AccordingtoBoese,manypeoplebelievedthereportofSwissspaghettiharvestbecausetheBritishdidnotknow______.
8.
Itfoundthatincreasesinairpollutiontendedto______.
9.
AccordingtotheUSDA,______tendtobereducedinorganicfoodproduction.
10.
Educationhaschangedenough,soitwillnotchangedanymore.
A.YB.NC.NG
11.
______becamethefirstparliamentintheworldtosuspendprivateprofitmakingintheuseofwater.
12.Married,WithMoney
Youfightoverfinances,right?Here'showtokeepthecash-andthepassion.
BrianGreenbergisacollegefinancialplanner,butonarecentmorninghefeltmorelikeamarriagecounselor.Thecouplesittinginhisoffice,nearCherryHill,NewJersey,wasseekingadviceaboutapplyingforfinancialaidfortheman'ssonfromapreviousmarriage."Whentheywalkedin,"Greenbergrecalls,"Icouldfeelthehostility."
Theincomefromthewife'sbusiness,whichshehadstartedbeforetheymarried,wasmodest,butitwasjustenoughtolimittheamountofaidthesoncouldreceive.Thehusbandwantedhertoincorporatetoreducetheirincome,therebyallowingthesontoqualifyformoreaid.Shedidn'twanttogothroughthecomplicatedincorporationprocess,butfeltpressuredbyherhusband."Hewassaying,'I'mentitledtodowhatIwantbecauseI'mmakingthemoneythatpaysthebills,'"recallsGreenberg."Thatkindofthinkingunderminesarelationship."
Muchofthistypeofanimosity(仇恨)canbeavoidedifonlycoupleswouldtalkaboutmoneybeforetheygetmarried,saysMaryClaireAllvine,acertifiedfinancialplannerinChicagoandAtlantaandco-authorofThe7MostImportantMoneyDecisionsYou'llEverMake.Withoutthistalk,it'sunlikelythatcoupleshaveanactualplanfortheirlivestogether.
StudieshaveshownthatdisagreementsovermoneyaretheNo.1causeoffrictioninamarriage.Andforsome,they'retheNo.1reasonfordivorce.
Sowhycansomecouplesweatherfinancialupsanddownswhileotherssplitoverahouseholdbudget?Thekeytosuccessistofindthecommonground-thesharedvaluesabouthow,aspartners,youwanttoliveyourlivestogether.Herearesometipsforexecutingamoneyplanwithoutlosingthepassion.
Thinkbigandputitinbuckets.Aftercoupleshavepaidtheirfixedexpenses,theyoftenfindthemselvesdisagreeingoverhowtospendwhat'sleft-payoffthecreditcardsorgetthatHDTVoneofthemhasbeencraving.
Toavoidsuchclashes,talkaboutyourdreams.Allvine'sresearchsayscoupleswhodon'tgetboggeddownwithday-to-daybudgetingdetailsareusuallythemostsuccessfulwiththeirmoney."Youcan'tsaytothespender,'Okay,youcanonlyspend$50amonth.'It'slikeputtingpeopleonadietwheretheycanlastforawhilebutthentheyjustbingeandeataloafofbread.Thespenderwillsay,'I'llcutback.Andthentheystartcuttingouttheextracupofcoffee.Butit'srarelythecoffeethatputsthemindebt.It'sthehometheycan'taffordorthecartheyshouldn'tbedriving."
Allvinerecommendssortingyourbigdreams-startingabusiness,owningahome,savingforavacation-intocategories,orbuckets."Whenyounamethebucket,youknowwhatthatmoneyisfor,andyouwon'tuseitforanythingelse.That'showcouplesgettotheirgoals-theypaythemselvesfirstforthebigthings."
Everyoneneedstheprenuptial(結(jié)婚前的)talk.Astoday'scouplesmarrylater,orremarry,theyfacebigchallengescombiningresources.Onespousemaybringchildrenfromapreviousmarriage;anothermightbecaringforelderlyparents.Thenew-thinksays,richornot,youmayneedaprenuptialagreement."Itmakessensetothinkthingsthroughearlyon,"saysMellodyHobson,presidentofArielCapitalManagementinChicago.
ButCarrieSchwab-Pomerantz,co-author,withherfather,CharlesSchwab,ofItPaystoTalk,hasadifferenttake:"Noteveryoneneedstosignaprenuptialdocument-buteveryoneshouldhavetheprenuptialconversation."
Thepoint,saysSchwab-Pomerantz,istogetanideaofeachother'smoneypersonality."Ifsomeonehasalotofdebt.thatcanreflectsomepersonalityissuesthathisorherpartnerneedstoknowab
A.YB.NC.NG
13.
Whichisthemasteroffivekindsofsensesforhumanbeing?
A.Thecerebralcortex.
B.Thebrain.
C.Thenerves.
D.Themuscles.
14.
______areusedbyseveralautomakerstoproducehybridsedans,SUVsandtrucks,whichhelpcutglobalwarmingpollution.
15.Gardening
Thetechnologyofbeauty
Now,gardeningwasdrivenbythreemaintrends:technologicalchange,plantprospectingandfashion.Ofthese,themostimportantwastechnology,whoseadvancesmadeitpossibleforthemiddleclassestoenjoywhathadoncebeenaffordableonlytotheveryrich.
Themostdramaticexampleofpopularizingtechnologywassurelytheinventionofthelawnmower.Nothingwasmorelabour-intensive,inthe18thcentury,thanmaintainingalargelawn.Itwouldtakethreemenwithscythes(大鐮刀)awholedaytocutanacre(two-fifthsofahectare)ofgrass;theywouldbefollowedbylawnwomenwhosetaskwastogatherupthecuttings.
Justonemanwenttomow
Then,in1830,EdwinBeardBuddingrealisedthattherotarybladeusedintheclothindustrytoproduceanevenpileontextilescouldbeusedongrass.Therotarylawnmowermeantthatsuburbanhomescouldaffordtheneatgreensward(草皮)previouslyavailableonlytotherich.
TheothertechnologythattransformedVictoriangardeningwasthedevelopmentoftheartofgrowingplantsunderglass.ImportingplantsfromcountriesasdistantasAustraliabecameacommercialpossibilityoncetheyweresealedinwoodenboxeswithglasstops.Fromthe1830son,Victoriangardens,privateandpublic,usedmassesofbeddingplants.In1877,2millionplantswerebeddedoutinLondon'sparks,ofteninelaborategeometricdesigns.Growingthemunderglassprotectedthembothfromfrostandfrompollution.
Inthepastcentury,technologyhasonceagaintransformedandsimplifiedgardening.Amongthemostsignificantadvancesisthegrowingofplantsincontainers.Insteadoforderingplantsgrowninopenfieldsanddugupbare-rootedforplantinginautumn,gardenersnowtypicallybuyplantswhich,becausetheyhavebeengrownincontainers,canbetransplantedatalmostanytimeofyear.Containergrowinghasinturnbecomepossiblelargelybecauseofthedevelopmentoflightercomposts.
Othermen'sflowers
Thepasttwocenturieshaveseenanimmenseincreaseintherangeofgardenplants.Nativespecieshavebeenrefinedanddeveloped;andexplorershavebroughtbackplantsfromallpartsoftheworld.ThepassionforplantcollectingsprangpartlyfromtheexpansionofCatholicreligiousorders(神職)abroadinthe16thcentury,lookingformedicinalplantsaswellassoulstoconvert.Manyearlyplant-huntersarecommemoratedinplantnames,suchastheTradescants,fatherandson;SirJosephBanks,whosailedwithCaptainCookandbroughthome3500speciesfromAustralia.
Fashioniseverybitasimportantindeterminingwhatpeoplegrowasinwhattheywear.Thegeometry,gravelandbeddingplantsofthemid-19th-cenmrytown-housegardenhadgivenway,bythecentury'send,toapassionforinformalityandEnglishcottagegardens,fosteredbytwoofthegreatdesignersoftheage.Theirinfluencehasprovedenduring."Allovertheworld,peoplewanttorivalEnglishgardens,ofteninaclimatethatmakesitverydifficult,"saysSarahBond,anenthusiasticamateurgardenerinManhattan.
Agrowingbusiness
Bothgardeningandlookingatgardensaredevelopingrapidly.Givepeopleapieceofgroundandtheywillbuysomethingtoputinit.MarkBhattiandAndrewChurchofBrightonUniversityinEnglandpointtothefactthatpeoplenowseemtospendfarmoreonmachineryandchemicals,andmoreagainonbenches,barbecues,potsandsun-loungers,thantheyspendonplantsthemselves.
Moreover,therangeofplaceswherepeoplecanbuygardeningsupplieshasexpanded.Supermarketsandgeneralstoresfrequentlycarryplantsandothergardeningnecessities.Onthecontrary,Britain'sGardenCentreAssociationsaysthataround12%ofthetypicalturnoverofagardencentrenowcomesfromthecafe.Atriptoaga
A.YB.NC.NG
16.
______,artificialdiscoperationisconsideredabetteroptionthanthetraditionalfusionsurgery.
A.Givingpatientsgreatermobilityandquickerrecovery
B.Suitableforeveryback-painsufferers
C.Beinglessinvasiveandcostly
D.Withfewerpost-operationsideeffects
17.
Successinsomeimportantdrugs______.
18.
Besidespregnantwomen,peopleoversixty-five,influenzacanbeanespeciallyseriousdiseaseforpeople______.
19.MartinusvanSchalkwyk,theministerofenvironmentalaffairsandtourism,visitedthesouthDurbanbasinearlierthisyearandsaidthereweremeasuresinplaceto______.
20.
Ifyouhaveafever,youmuststayinbed.
A.YB.NC.NG
二、3.ListeningComprehension(20題)21.聽力原文:W:I'msofrustrated.TheFinancialAidOfficeisgivingmearealrunaround.Theysentmefromofficetooffice,butnoonecangivemetherightanswers.
M:Icanunderstandyou.EachtimeIgotoapplyforanextensionofmystudentvisa,theyjustgivemearunaround,too.
Q:Whatisthewomandoing?
(15)
A.Sheisapplyingforfinancialaid.
B.Sheisrunningaroundtheoffice.
C.Sheisextendingherstudentvisa.
D.Sheisapplyingforastudentvisa.
22.聽力原文:W:Wenowinterruptourregularschedulednewsprogramtobringyouliveup-to-datecoverageonthecivilunrestinthenewlyformedcountryofKarnak,whereourmanStanFieldingisstationed.Stan...
M:ThisisStanFieldingreportinglivefromthesuburbsofthecapitalcity.Just20minutesago,rebelforceslaunchedthebiggestoffensiveagainsttherulinggovernmentinthe18-monthconflicthereinthiscountry.
W:NowStan,isthisasignthatthepeaceprocesshasbeentotallyabandoned?
M:Well,sofar,peacenegotiationshavefailed,andanyresolutiontoendthecivilwarappearsbleakatthismoment.Asyoucansee...Whoa.
W:Stan,Stan,areyouthere?
M:Uh,yes,Shelly.Asyoucanprobablyhearbehindme,rebelforcesarealsousingheavyartillerytopoundthepositionsofgovernmentforcesaroundthecitycenter.Rebelforcesareclosingin,andit'sfearedthattheywillbeabletotakethecapitalbuildingbeforedaybreakwhere,itisbelieved,manygovernmentofficialsareholdingout.
W:Now,besidestheheavyfighting,whatotherpressingconcernsarethereforthecitizensofthecity?
M:Well,sincethebeginningoftheconflict,starvation,andlackofcleanwaterandadequateshelterhavebeenthebiggestdailyobstaclesfacingthecitizensofthiswar-torncountry.Itisbelievedthatover40,000people,mostlychildren,havestarvedtodeath.Fortunately,noepidemicshavebrokenout,butthatisalwaysaconcernifthiswarlingerson,
W:Okay,thatwasStanFieldingreporting.Andwewillkeepyouup-to-dateasthisstorycontinuestounfold.
(23)
A.ThelatestdevelopmentsofanarmedrebellioninKarnak.
B.ThefallofKarnak'scapitalcityintothehandsoftherebelforces.
C.TheepidemicthathasjustbrokenoutinthecountryofKarnak.
D.ThepeacetalksbetweentherebelsandthegovernmentinKarnak.
23.
【B4】
24.
【B5】
25.(29)
A.Thebodytemperaturedropsandtheheartbeatandbreathingslowdown.
B.Thebodytemperaturedropsandtheheartbeatstops.
C.Thebodytemperaturerisesandbreathingspeedsup.
D.Thebodymovementsdecreaseandtheheartbeatslowsdown.
26.SectionA
Directions:Inthissection,youwillhear8shortconversationsand2longconversations.Attheendofeachconversation,oneormorequestionswillbeaskedaboutwhatwassaid.Boththeconversationandthequestionswillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarkedA,B,CandD,anddecidewhichisthebestanswer.
聽力原文:W:Doyouwanttogorunningdownbythelakeafterpsychologyclass.Ireallyliketotakeadvantageofthebeautifulweatherthisafternoon
M:Well,normallyIbegintogatherwithmystudygroupthen,butIguessIcanskipthatjustthisonce.
Whatdoesthemanmean?
(12)
A.Hewantstostayinthesunshine.
B.Hewouldliketogoforarun.
C.Hewillstudyafterschool.
D.Hewillhaveagather-togetherwithhisfriends.
27.(32)
A.Abatcaughttheinsectinmidairandateit.
B.Dolphin'sclickingsoundsbouncedoffthefishandbacktoit.
C.Apersonheardanechowhenheshoutedintothevalley.
D.Adogheardhisowner'swhistlebecauseheusedultrasound.
28.聽力原文:M:Didyoutalkwithournewmanager?Heislookingforyouthesedays.Ithinkhehassomethingimportant.
W:Ihavebeenoutoftownfor2days.AnduntilthismorningIcomeback.
Q:Whatdoesthewomanmean?
(17)
A.Shehasn'ttalkedwiththenewmanageryet.
B.Thenewmanagerwasnotintheoffice.
C.Shehasbeenathome.
D.Shedidn'twanttotalkwiththenewmanager.
29.(45)
30.(26)
A.Menshouldrememberwhateverwomensay.
B.Menshouldgivewomenwhatevertheywant.
C.Womengiveitwhenmenfailtocatchwhattheysay.
D.Womenappreciateitwhenmenmakeanefforttounderstandthem.
31.聽力原文:W:Didyougotothelibrary,beforeorafteryourexamthismorning?
M:Before.First,Iwenttothelibrarytoreviewmylessons,andafterIhadmylunch,IplayedfootballbeforeIwenthome.
Q:Whatdidthemandothird?
(18)
A.Lunch.B.Exam.C.Reviewhislessons.D.Playingfootball.
32.
【B10】
33.
【B7】
34.
【B2】
35.
domestic
36.(22)
A.Heisorganizedandagoodspeaker.
B.Heisenthusiasticandafast-learner.
C.Heispersistentandexperienced.
D.Heiscapableandgoodatmarketing.
37.聽力原文:OK,soinourlastclasswewerediscussingbigbandsswingmusic.Yourememberthiswasakindofdancemusicwithasteadyrhythm.(26)Buttodaywedealwithmusicplayedbysmallerjazzbands.It'scalledbebopand(27)itmayuseallsortsofnewtypesofrhythms,someofwhichareveryirregular.We'lltalkmoreaboutthatlater.(26)ButfirstIwanttotalkaboutsomeofthesocialelementsthatIbelievecontributedtothedevelopmentofbebopmusic.Todothis,wehavetolookatwhenbeboparoseandstartedbecomingsopopular,whichwasfromthelate1930sthroughthe1940s,fromthetimeoftheenvironmentforbebopmusicwasthedeclineoftheUSeconomy.Duringthegreatdepression,theeconomysufferedtremendously.Andfewerpeoplehadmoneytospendonentertainment.ThenduringWorldWarIIthegovernmentimposedanewtaxonpublicentertainment,whatyoumightcallperformancetax.(28)Thegovernmentcollectedmoneyonperformancesthatincludedanytypesofacting,dancingorsinging,butnotinstrumentalmusic.Sotoavoidthisnewtax,somejazzbandsstoppedusingsingersaltogether.(29)Theystartedrelyingonthecreativityoftheinstrumentalisttoattractaudiences.(28)Thiswaswhatbebopbandsdid.Nowrememberalotofbandshavesingers.Sotheinstrumentalistssimplyplayedinthebackgroundandhadoccasionalsoloswhilethesingersangthemelodytosongs,butnotbebopbands.(27)Sotheinstrumentalistshadmuchmorefreedomtobecreative.Sotheyexperimented,playingthemusicfasterandusingnewirregularsortsofrhythms.
(33)
A.Characteristicsofbigbandsswingmusic.
B.Thedevelopmentofbebop.
C.TherelationshipbetweenAmericanmusicandeconomy.
D.Thedifferencesbetweenbebopmusicandswingmusic.
38.(34)
A.Thereisafiercecompetitionforthetop-leveljobs.
B.Therearesomanypeopleoutofwork.
C.Thejobhistoryisconsideredagoodreflectionofthejobhunter.
D.Newgraduateswithoutworkexperienceareunwanted.
39.聽力原文:M:HowareweevergoingtofinishthisprojectbyWednesday?
W:Well,we'lljusthavetorollupoursleevesandhopeforthebest.
Q:Whatdoesthewomanmean?
(19)
A.Theyhavetofinishitquickly.
B.Theyhavetousewhattheyhave.
C.Theyhavetoworkhardanddotheirbest.
D.Theymustredotheprojectandhopeitimproves.
40.(31)
A.Becausethefarmerplantedthetreeneartheroad.
B.Becausethefarmerplantedthetreeononeofhisfield.
C.Becausethefarmerplantedthetreenearhishouse.
D.Becausethefarmerplantedthetreeinhiswoods.
三、4.ReadingComprehension(ReadinginDepth)(20題)41.
Accordingtothepassage,BenjaminThompsonwasthedesignerforaprojectin______.
A.SanFranciscoB.BostonC.MinneapolisD.SanAntoino
42.
【C2】
43.
Thelionrepresentsthosewhoare______.
A.tootrusting
B.strongandcareful
C.reliantonforce
D.lackinginintelligence
44.SectionB
Directions:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Youshoulddecideonthebestchoice.
Ingeneral,oursocietyisbecomingoneofgiantenterprisesdirectedbyabureaucraticmanagementinwhichmanbecomesasmallwell-oiledcog(齒輪)inthemachinery.Theoilingisdonewithhigherwages,well-ventilatedfactoriesandpipedmusic,andbypsychologistsand"human-relations"experts;yetallthisoilingdoesnotalterthefactthatmanhasbecomepowerless,thatheisboredwithit.Infact,theblue-andthewhite-collarworkershavebecomeeconomicpuppets(傀儡)whodancetothetuneofautomatedmachinesandbureaucraticmanagement.
Theworkerandemployeeareanxiousnotonlybecausetheymightfindthemselvesoutofajob;theyareanxiousalsobecausetheyareunabletoacquireanyrealsatisfactionofinterestinlife.Theyliveanddiewithouteverhavingconfrontedthefundamentalrealitiesofhumanexistenceasemotionallyandintellectuallyindependentandproductivehumanbeings.
Thosehigheruponthesocialladderarenolessanxious.Theirlivesarenolessemptythanthoseoftheirsubordinates.Theyareevenmoreinsecureinsomerespects.Theyareinahighlycompetitiverace.Tobepromotedortofallbehindisnotamatterofsalarybutevenmoreamatterofself-respect.Whentheyapplyfortheirfirstjob,theyaretestedforintelligenceaswellasforthefightmixtureofsubmissivenessandindependence.Fromthatmomentontheyaretestedagainandagain—bythepsychologists,forwhomtestingisabigbusiness,andbytheirsuperiors,whojudgetheirbehavior,sociability,capacitytogetalong,etc.Thisconstantneed.toprovethatoneisasgoodasorbetterthanone'sfellow-competitorcreatesconstantanxietyandstress,theverycausesofunhappinessandillness.
AmIsuggestingthatweshouldreturntothepre-industrialmodeofproductionortonineteenth-century"freeenterprise"capitalism?Certainlynot.Problemsareneversolvedbyreturningtoastagewhichonehasalreadyoutgrown.Isuggesttransformingoursocialsystemfromabureaucraticallymanagedindustrialisminwhichmaximalproductionandconsumptionareendsinthemselvesintoahumanistindustrialisminwhichmanandfulldevelopmentofhispotentialities—thoseofallloveandofreason—aretheaimsofsocialarrangements.Productionandconsumptionshouldserveonlyasmeanstothisend,andshouldbepreventedfromrulingman.
By"awell-oiledcoginthemachinery"theauthorintendstorendertheideathatmanis______.
A.workingincompleteharmonywiththerestofthesociety
B.ahumblecomponentofthesociety,especiallywhenworkingsmoothly
C.anecessarypartofthesocietythougheachindividual'sfunctionisnegligible
D.anunimportantpartincomparisonwiththerestofthesociety,thoughfunctioningsmoothly
45.AccordingtoFrankRoberto,whatisthedifficultyforAmericanresearchers'mass-productionofmusselglue?
A.Thegenenumberthatisknownisnotenough.
B.Musselsaremuchsmarterthanwethink.
C.Theycan'tcopytheblendofproteinsofmussel.
D.Musselshaveanamazingpowerharmfultoman.
46.
Talkingtoanimalsis______.
A.sillyB.suspiciousC.beneficialD.stimulating
47.WhichofthefollowingistrueabouttheWorldDigitalLibraryaccordingtothepassage?
A.AteamattheLibraryofCongressinWashingtondevelopeditswebsitealone.
B.Librariesandinstitutionsinmostcountrieshavecontributedtothelibrarysofar.
C.Alldocumentsandtheirexplanationsinthelibraryareinsevenofficiallanguages.
D.YoucanlearnfromthelibraryaboutBritishpoliticsandeconomy1000yearsago.
48.Thepurposeofthelargecompaniesinrecruitingoutsidersandputtingthemontheboardofdirectorsisto______.
A.diversifythebusinessofthecorporation
B.protecttheinterestsoftheshareholders
C.introduceeffectivereformsinbusinessmanagement
D.enhancethecooperationbetweentheseniormanagersandtheboarddirectors
49.
ElAl'ssecurityprocedurescan'tbewidelyappliedinAmericabecausetheyare____.
50.AmetalwithabuiltinmemoryisoneoftheveryusefuldiscoveriesmadeduringAmerica'sspaceprogram.NitinolwasdiscoveredbyscientistsworkingattheNavalSurfaceWeaponsCenter.Theywerelookingforheatshieldmetalsformissilesandsatellites,butwhattheyfoundwasnitinol.Thisalloycanbeformedintoshapesjustlikeanyothermetal,butitreturnstoitsoriginalform.atacertaintemperature.
Whenthisalloyofnickelandtitaniumisfirstformed,itisshapedintoingots,brickshapedmassesofthemetal.Thenitisdrawnoutintoawireofvaryingthickness,dependingonthejobitisdestinedtodo.Itissetintoitsdesiredcurveorshapeandheatedbriefly.Itisthencooledoffbydippingthewireincoldwater.This"sets"itsmemory.Themetalcanthenbeformedintoanydesiredshape,butwheneveritstemperatureexceedsitsroomtemperature,'itreturnstotheshapeithasmemorized.
Thismakesnitinolperfect,ofcourse,for,spacecraft,forantennas,probes,shields,andfolding"arms"madeofnitinolcanbestoredsafelyinsideaspacecraft,protectingthemfromdamageduringlaunching.Then,oncesafeinorbit,thespacecraftwouldsuddenly"grow"antennasandotherstructures.Thesun'srayswouldhavewarmedupthefoldedandcoilednitinol,anditwouldhavereturnedtoitsoriginalshape.
Butscientistshavefoundamoredowntoearthuseforthiswire:theynowuseittostrengthenteeth.Beforenitinol,teeththatneededstraighteninghavebracketsattachedtothem;wireswereattachedtothesetoexertapullintherightdirection.Butthispullmustbeconstant,andthestainlesssteelarchwirecannotexertthecorrectforceifithasbeenbentseveraltimesorifthetoothhasactuallymovedtowarditasplanned.Asaresult,manypeoplewithdentalbracesmusthavethewirereplacedmonthly,tightenedeveryfewweeks,oradjustedpainfullytightatthebeginningofthetreatment.
Butnitinolwirescanbeformedtoexertforceinacertaindirection,cooledofandthenreformedtofitthepatient'smouth.Asthemouthwarmsthenitinol,itbeginstotrytoassumeitspresetshape.Thisexertsasteadier,moreconstantpullonthetooththancouldeverbeachievedwithstainlesssteelwire.Nitinolcanbebentintosuchintricateshapes—whilemaintainingitspull—thatverydifficulttreatments,suchasmovingonetoothfrombehindanother,canbedonenowwithouttheexpenseorpainofconstantadjustment.Nitinolhascuttiletimeneededforthesetreatmentsbyalmosthalf,arealbenefitforbothpatientanddentist.
Themainideaofthispassageisthat______.
A.nitinolisahighlyversatilemetal
B.nitinolhelpedmakethespaceprogramasuccess
C.nitinolhasrevolutionizeddentalcare
D.mostalloyshave"memories"
51.
【C8】
52.(62)
53.
Whydoestheauthorthinkthatsixteenisthekey,crucialandnaturalage?
A.Adultswouldliketobeyoung.
B.Sixteen-year-oldsdonotwastethings.
C.Sixteen-year-oldsreadnewspapers.
D.Sixteen-year-oldswillbefightingsoonforadults.
54.WhatdoestheauthorsayaboutgraduateeducationinAmerica?
A.ThebestgraduateeducationisinDetroit.
B.Manygraduatescan'tfindajobintheirprofession.
C.Mostgraduateprogramsshouldbecancelledforgood.
D.Moststudentsreceivegraduateeducationjustforadiploma.
55.Theauthorcondemnsnoiseessentiallybecauseit______.
A.isagainstthelaw
B.canmakesomepeopleirritable
C.isanuisance
D.isadangertopeople'shealth
56.Theauthor'spurposeincitingthosewhoarerepeatedlyunemployedduringatwelve-monthperiodismostprobablytoshowthat
A.thereareseveralfactorsthatcausethepaymentoflowwagestosomemembersofthelaborforce
B.unemploymentstatisticscanunderestimatethehardshipresultingfromjoblessness
C.recurrentinadequaciesinthelabormarketcanexistandcausehardshipsforindividualworkers
D.amajorityofthosewhoarejoblessatanytimedoesnotsufferseverehardship
57.SectionB
Directions:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Youshoulddecideonthebestchoice.
Aweathermapisanimportanttoolforgeographers.Asuccessionofthreeorfourmapspresentsacontinuouspictureofweatherchanges.Weatherforecastersareabletodeterminethespeedofairmassesandfronts;todeterminewhetheranindividualpressureareaisdeepeningorbecomingshallowandwhetherafrontisincreasingordecreasinginintensity.Theyarealsoabletodeterminewhetheranairmassisretainingitsoriginalcharacteristicsortakingonthoseofthesurfaceoverwhichitismoving.Thus,amostsignificantfunctionofthemapistorevealasynopticpictureofconditionsintheatmosphereatagiven
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