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2021-2022年安徽省宣城市公共英語五級(筆試)知識點匯總(含答案)學(xué)校:________班級:________姓名:________考號:________
一、1.ListeningComprehension(15題)1.Dr.WilsonissatisfiedwithWang'spastexperience.
A.RightB.Wrong
2.Whatisbehavioralmanagementbasedon?
3.聽力原文:M:Haveyousettledin?
W:Yes,Ifeelmyselfquiteathomenow.Ihaven'tgotusedtothefoodyetbutI'menjoyingthelifeoncampus.
M:Good.Nowwe'dbettermakesureyouenjoyyourstudies.Weofferaverywiderangeofoptionsonthefoundationcourse,asyouknow,butyoucanonlytakesixcourses.Doyouknowwhatyouwanttodoyet?
W:Yes,moreorless:butI'mnotsurewhethertodobiologicalsciencesorGerman.
M:Well,that'squiteadifference.Let'ssee…you'veselectedtodo:physicalsciences,basicelectronics,artanddesign,CAD…that'scomputeraideddesignandEnglish.
W:Yes,fivecourses.
M:That'squitearange.Don'tyouwanttodomathsorcomputerprogramming,forexample?
W:Well,I'minterestedinelectronicsincomputersespeciallyinwritingcomputergames.I'dliketoproduceeducationalsoftware,educationalgames,
eventually.I'vetaughtmyselfalotofprogrammingandIwasgoodatmaths.Idon'tthinkIneedeitherofthem.
M:Then.whydidyouchoosetodoananddesign?
W:Well.thatwillbegoodformygraphics.Ineedthattoproducegames…CAD.too.I'veneverdonecomputeraideddesignbefore.
M:No…right…they'vegotsomepowerfulpackagesinthecomputergraphicsandCADoffices…you'llenjoythat.So…thatleavesEnglish.It'smostlyEnglishliterature.IknowyourEnglishisallright.Butasafirstyearstudent.you'llhavetotaketheCambridgeProficiencyTest.
W:Allfight.
Whoistheman?
A.Studentadvisor.
B.Courseteacher.
C.Admissionsofficer.
D.Departmentsecretary.
4.WhatjobdidDr.Hubercomparephysicsto?
5.PaulcouldreachalltheswitchesbecausetheyWereoriginallyinstalledattherightheightofhim.
A.RightB.Wrong
6.WhydidAmericanshavethesemovementsintheearly1960s?
7.Whatistherelationshipbetweenthemanandthewomaninthedialogue?
A.Reporterandfashiondesigner.
B.Husbandandwife.
C.Shopassistantandcustomer.
D.Teacherandstudent.
8.聽力原文:M:Soyoureallybelievethatclothescarryakindofmessageforotherpeopleandthatwhatweputonisinsomewayareflectionofwhatwefeel?
W:Ohyes,verymuchso.Nowpeoplearebeginningtotakeseriouslytheideaofakindofpsychologyofclothing,tobelievethatthereisnotjustindividualtasteinourclothesbutalsoathinkingbehindwhatwewearwhichistryingtoexpresssomethingwemaynotevenbeawareofourselves.
M:Butsurelythishasalwaysbeenthecase.Wealldressupwhenwewanttoimpresssomeone,suchasforajobinterviewwithaprospectiveemployer;wethenmakeaneffortandputonsomethingsmart.
W:True,butthat'saconsciousact.WhatIamtalkingaboutismoreofasubconsciousthing.Takeforexamplethestudentwhoisawayfromhomeatcollegeoruniversity:ifhetendstowraphimselfupmorethantheothers,thisisbecauseheisprobablyfeelinghomesick.Similarly,ageneralfeelingofinsecuritycansometimestaketheform.ofoverdressinginwarmerclothesthannecessary.
M:Canyougiveanyotherexamples?
W:Yes.Ithinkpeoplewhoaresociableandoutgoingtendtodressinanextrovertedway,preferringbrighterormoredazzlingcolorsyellows,brightreds,andsoon.Inthesameway,whatmightbeseenasaparallelwiththeanimalkingdom,aggressiveclothesmightindicateanaggressivepersonalityorattitudetolife.Thinkaboutthethreatdisplaysusedbyanimalswhentheywanttowarnoffopponents.
M:Doyouthinkthecareorlackofitoverthewayweactuallywearourclotheshasanythingtotellus?
W:Yes,indeed.Thelength,forexample,ofaman'strousersspeaksvolumesabouthisawarenessofhisownimage.Or,ifhistrousersaretooshortorhangingloosely,thisprobablymeanshe'sabsorbedbyotherthings.
Accordingtothewoman,whatgovernstheclotheswewear?
A.Adesiretoexpressoneselfandshowone'swealth.
B.Individualtasteandloveforbeauty.
C.Loveforbeautyandadesiretoimpressotherpeople.
D.Individualtasteandadesiretoexpressoneself.
9.Whenthetrampwasarrested,he______.
A.laugheda:thepolice
B.lookedforwardtogoingtoprison
C.tookhisbottleswithhim
D.didn'tmakeanyfuss
10.Whatproblemdoesthemanthinkcanbesolvedifthegovernmentputupsmallunitstobuildsolarpanels?
A.Theheatsupply.
B.Theelectricsupply.
C.Thewatersupply.
D.Theunemploymentsituation.
11.Warmwatercan'tcoolus,butcoldwatercan.
A.TrueB.Fasle
12.Whatwillshemostlikelydoeventually?
A.Dobasicelectronics.
B.TeachEnglishliterature.
C.Produceeducationalgames.
D.Writecomputerprograms.
13.Theirschemeisbasedonthepremisethatallpeoplehaveabasicwayof______.
14.PartA
Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.
聽力原文:Goodmorning!
Um...AsManagingDirectorofourcompanyI'vebeenaskedtosayafewwordstoyoutodayaboutthewaythecompanyisorganized.SowhatI'vedoneistomakeasortoftable...youknow...toshowhowitisallarranged.It'sinyourbooks.Canyoufindit?
OK.Now,notallcompaniesareorganizedinthesameway,ofcourse.Theyallhavemoreorlessthesamebitsandpieces,buttheyputthemtogetherindifferentways.Infact,someManagingDirectorsarealwayschangingtheorganization,whichcanbeverydisturbingforeverybodyelseandsometimescausesawfulhold-ups.Sometimesit'snecessary,ofcourse,likewhenyoustartmakingsomethingdifferentorjoinupwithanothercompanyorsomething.Anyway,Ithinktheorganizationofmycompanyisfairlytypical,solet'stakealookathowwehaveorganizedit.
Atthetopofthescheme,aboveme,istheBoardofDirectors.Theirjobistoadministratethecompany,makegeneralpolicies,andsoon.Therearetwokindsofdirectors,actually.Onekindiswhatwecallnon-executivedirectors,whichmeansthattheyarenotfull-timeemployees.Theyarethesortofpeoplewhohavesomestandinginvariouspartsofthebusinessworldandareinapositiontohelpthecompanytosucceed.TheyonlyappearwhentherearemeetingsoftheBoard,andsomeofthemareontheboardsofothercompaniesatthesametime.Butthesecondlotofdirectors—theexecutivedirectors—arefull-timeemployeesofthecompany.Mostofthemaremanagersofourvariousdepartments,andyou'llbemeetingthemlater.
Theabsoluteheadofthecompany,ofcourse,istheChairmanoftheBoard.HeisappointedbytheBoard,andhisjobistotakethechairatmeetingsoftheshareholdersandtheBoardofDirectors,andtorepresentthecompany'sinterestsatoutsidefunctions.Hedoesnottakemuchpartintherunningofthebusiness.Heleavesmetogetonwiththejob.Mindyou,notallchairmenarelikethat.Ourlastonewasarealpain,alwayswantedeverythingdonehisownwayandhekeptoninterfering...butanyway,that'swhatthetopslotintheschemeisfor.
Thenthere'sme,theManagingDirector,orMDforshort—aslongasyoudon'tthinkI'madoctorofmedicine,haha...Um...Now,myjobistocoordinatethepoliciesdecidedbythedirectorsandseethattheyarecarriedout.Idothisthroughthevariousmanagersofdepartments—departmentalmanagers.AtthemomentI'vegotsix,andthereareslotsforthemalongthelineunderneathmeinyourscheme.Idon'tthinktheyareinanyparticularorder,sowe'llstartfromtheleftandwalkacross.Actually,they'reallgoingtocomeandtellyouabouttheirjobs.SoI'lljustsayafewwords.And...Right.Thefirstoneis...
Thespeechismainlyabouttheorganizationofthecompany.
A.TrueB.Fasle
15.Thepast-orientedpeopleareflexiblein______.
二、2.UseofEnglish(10題)16.
【C12】
17.(32)
18.
【C13】
19.
【C18】
20.(42)
21.(35)
22.
【C15】
23.Impatiencecharacterizesyoungintellectualworkers.Theywanttomaketheirmark【C1】______.Soit'simportanttoget【C2】______totheminachallengingmannertheidea【C3】______bigachievementsrarelycomeeasilyandquickly.Pointoutthatthelittlesuccessesareessential.Showthatthey【C4】______turnbecomethefoundationon【C5】______reputationsarebuiltandfromwhichmoreimportanttaskscanbeaccomplished.
Avarietyofjobassignments,includingjoborprojectrotation,alsokeepajob【C6】______becomingdull.Whereasit'snaturalforsomeindividualstowanttomoveaheadimmediatelytomoredifficultassignments,【C7】______properguidancetheycancontinuetolearnandtogainversatilitybyworkingonanumberofjobsthatareessentially【C8】______thesamecomplexity.Thiswaytheygainbreadth,ifnotdepth.
Probablythegreatestoffensetoguard【C9】______whendealingwithyoungerspecialistsistorejectideasoutofhand.Youmustlisten--andlistenobjectively--totheirsuggestions.Avoid【C10】______overcritical.Youwanttonurtureaninquiringmindwithafreshapproach.You'llfrustrateitquicklyifyoureverttoooften【C11】______"We'vetriedthatbeforeanditwon't【C12】______here."
Onesurewaytodisenchant【C13】______collegegraduatesisflagrantlymisusingtheirtalents.Expectthemtodosomeroutinework,ofcourse.Butdon'tmaketheir【C14】______workjustonelongseriesoferrands.Thisincludessuchbreak-inassignments【C15】______performingroutinecalculations,diggingup【C16】______material,【C17】______operatingreproductionequipment.Onelargemanufacturingcompanyrecentlyinterviewedanumberof【C18】______engineerswhohadleftthem.Thecompanyfoundthattheoverwhelmingcomplaintwasthatthecompanynotonlydidnotofferworkthat【C19】______challengingbutalsoexpected【C20】______toolittlefromtheminthewayofperformance.
【C1】
24.(36)
25.
【C5】
三、3.ReadingComprehension(15題)26.PartB
Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.
Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66~70,choosethemostsuitableparagraphfromthelistA~Ftofitintoeachofthenumberedgaps.ThereisOneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.
Supermarketshoppershaveneverbeenmorespoiltforchoice.Butjustwhenwethoughttraditionalsystemsofselectivefarminghadcreatedthemosttemptingarrayoffoodsmoneycanbuy,wearenowbeingpresentedwiththeprospectofgeneticallycreatedstrainsofcabbages,onion,tomato,potatoandapple.
Itmaynotticklethefancyoffoodpuristsbutitfirestheimaginationofscientists.LastweektheydiscoveredthattheclassicParisianmushroomcontainsjustthepropertiesthat,whengeneticallymixedwithawildstrainofmushroomfromtheSonoradesertinCalifornia,couldhelpitgrowenmassewhileatthesametimeprovidingitwiththeresilienceofthewildstrain.
66.______
“Wehavefoundawayofincreasingthesuccessratefromoneto90percent.”
Thisisjustoneofthemanyproductsthat,accordingtoskeptics,arecreatingagenerationof“Frankenfoods”.Thefirstsuchfoodthatmaybeconsumedonawidescaleisatomatowhichhasbeengeneticallymanipulatedsothatitdoesnotsoftenasitripens.
67.______
Criticssaythatthenewtomato—whichcost$25milliontoresearch—isdesignedtostayonsupermarketshelvesforlonger.Ithasaten-daylifespan.
Notsurprisingly,every-hungryUSisleadingthesearchfortheseforbiddenfruit.Bychangingthegenesofagrapefruit.a(chǎn)growerfromTexashascreatedasweet,red,thin-skinnedgrapefruitexpectedtosellatapremiumoveritsCaliforniaandFloridacompetitors.
Forchipfanaticswhowanttowatchtheirwaist-lines,newhigh-starch,low-moisturepotatoesthatabsorblessfatwhenfriedhavebeencreated,thankstoagenefromintestinalbacteria.
Thescientistsbehindsuchnewfoodarguethatgeneticengineeringissimplyanextensionofanimalandplantbreedingmethodsandthatbybroadeningthescopeofthegeneticchangesthatcanbemade,sourcesoffoodareincreased.Accordingly,theyargue,thisdoesnotinherentlyleadtofoodsthatarelesssafethanthosedevelopedbyconventionaltechniques.Butifdesirablegenesareswappedirrespectiveofspeciesbarriers,couldthingsspiraloutofcontrol?“Knowledgeisnottoxic,”saidMarkCantley,headofthebiotechnologyunitattheOrganisationforEconomicCo-operationandDevelopment.“Ithasgivenusafargreaterunderstandingofhowlivingsystemsworkatamolecularlevelandthereisnoreasonforpeopletothinkthatscientistsandfarmersshouldusethatknowledgetodoriskythings.”
Clearly,financialincentiveliesbehindthedevelopmentofthesebigger,moreproductivefoods.Butwemayhaveonlyourselvestoblame.Intheearlyperiodofmassfoodcommerce,foodvarietiesweredevelopedbytraditionalmethodsofselectivebreedingtosuitthelocalpalate.Butassuppliersstartedtoselectandpreserveplantvariantsthathadlargerfruit,consumerexpectationsrose,leadingtothedevelopmentofthedesirableclones.Still,traditionalistsandgourmetsinEuropearefightingtheirdevelopment.
68.______
Eveninthepre-packagedUS.wheretheslow-softeningtomatowillsoonbereachingsupermarkets,1,500AmericanchefshavelenttheirsupporttothePureFoodCampaignwhichcallsfortheinternationalboycottofgeneticallyengineeredfoodsuntilmoreisknownabouttheconsequencesofthetechnologyandreliablecontrolshave
27.
Whyarehorsesusedtocatchtheelectriceels?
A.Tofrightentheeels.
B.Toexhausttheeels.
C.Toattracttheeels.
D.Tostirthewater.
28.(74)
29.Defendersofspecialprotectivelaborlegislationforwomenoftenmaintainthateliminatingsuchlawswoulddestroythefruitsofacentury-longstrugglefortheprotectionofwomenworkers.Evenabriefexaminationofthehistoricpracticeofcourtsandemployerswouldshowthatthefruitofsuchlawshasbeenbitter;theyare,inpractice,moreofacursethanablessing.
Sex-definedprotectivelawshaveoftenbeenbasedonstereotypicalassumptionsconcerningwomen'sneedsandabilities,andemployershavefrequentlyusedthemaslegalexcusesfordiscriminatingagainstwomen.AftertheSecondWorldWar,forexample,businessesandgovernmentsoughttopersuadewomentovacatejobsinfactories,thusmakingroominthelaborforceforreturningveterans.Therevivalorpassageofstatelawslimitingthedailyorweeklyworkhoursofwomenconvenientlyaccomplishedthis.Employershadonlytodeclarethatovertimehourswereanecessaryconditionofemploymentorpromotionintheirfactory,andwomencouldbequitelegallyfired,refusedjobs,orkeptatlowwagelevels,allinthenameof“protecting”theirhealth.Byvalidatingsuchlawswhentheyarechallengedbylawsuits,thecourtshavecolludedovertheyearsinestablishingdifferent,1essadvantageousemploymenttermsforwomenthanformen,thusreducingwomen'scompetitivenessonthejobmarket.Atthesametime,eventhemostwell-intentionedlawmakers,courts,andemployershaveoftenbeenblindtotherealneedsofwomen.Thelawmakersandthecourtscontinuetopermitemployerstoofferemployeehealthinsuranceplansthatcoverallknownhumanmedicaldisabilitiesexceptthoserelatingtopregnancyandchildbirth.
Finally,laborlawsprotectingonlyspecialgroupsareoftenineffectiveatprotectingtheworkerswhoareactuallyintheworkplace.Somechemicals,forexample,posereproductiverisksforwomenofchildbearingyears;manufacturersusingthechemicalscomplywithlawsprotectingwomenagainstthesehazardsbyrefusingtohirethem.Thusthesex-definedlegislationprotectsthehypotheticalfemaleworker,buthasnoeffectwhateveronthesafetyofanyactualemployee.Thehealthriskstomaleemployeesinsuchindustriescannotbenegligible.sincechemicalstoxicenoughtocausebirthdefectsinfetusesorsterilityinwomenarepresumablyharmfultothehumanmetabolism.Protectivelawsaimedatchangingproductionmaterialsortechniquesinordertoreducesuchhazardswouldbenefitallemployeeswithoutdiscriminatingagainstany.
Insum,protectivelaborlawsforwomenarediscriminatoryanddonotmeettheirintendedpurpose.Legislatorsshouldrecognizethatwomenareintheworkforcetostay,andthattheirneeds—goodhealthcare.adecentwage,andasafeworkplace—aretheneedsofallworkers.Lawsthatignorethesefactsviolatewomen'srightsforequalprotectioninemployment.
Accordingtotheauthor,whichofthefollowingresultedfromthepassageorrevivalofstate1awslimitingtheworkhoursofwomenworkers?
A.Womenworkerswerecompelledtoleavetheirjobsinfactories.
B.Manyemployershaddifficultyinprovidingjobsforreturningveterans.
C.Manyemployersfoundithardtoattractwomenworkers.
D.Thehealthofmostwomenfactoryworkersimproved.
30.Insuranceissupposedtoprovideprotectionagainstfinancialrisks,andwhiledyingtoosoonisonemajorriskweface,anotherriskmoreandmorepeoplefearisoutlivingtheirmoney.Asaresult,agrowingarrayoflifeinsuranceproductsmakeitpossibletoprotectagainstbothofthoserisks.
Inmanyoftoday'slifeinsuranceproducts,MacDonaldnotes,"Thedeathbenefitportionreallyhasbecomeacommoditytypeproduct,soifsomeoneisreallyconcernedaboutthefinancialimpactofdyingyoung,thentheycangetaprettygooddealbybuyingterminsuranceonacommoditybasis—findthecheapestpolicyandbuyit."But,hesays,"Theothersideofthecoinisthatinsurancecompanieshavedevelopedproductsthatcanbeverycreative,andverycompetitivetootheralternatives,includinginvestments.Theycanfillaveryimportantroleinanyoverallinvestmentplan."
Diverseanduniversalpoliciesofferpeoplechoicesinhowmuchtheywanttoputintotheirpoliciesandhowtheywanttheirfundsinvested.Thesefundscanthenbetappedlaterontoprovidealumpsumforpurchasingaretirementhomeorastreamofretirementincome.Lifeinsuranceisanattractiveinvestmentvehicle,becausethe"insidebuildup",theaccumulationoffundsinsideapolicystructrue,isnotsubjecttotaxes,incontrasttootherpersonalinvestments.
However,MacDonaldandotherswarnagainstusinginsurancepoliciespurelyasaninvestment.Whiletherearetaxadvantages,therearealsothecostsconnectedwiththeinsurancecoverage,andifyoudon'tneedthatcoveragethesecanbeexpensivewaystoinvest.
Moreover,MacDonaldnotesthatsomecompaniesareofferinginsurancethathasacriticalillnessorlong-termcarebenefit.Thesepoliciesspecifythatifsomeonesuffersaheartattack,forexample,theywillget25%ofthefaceamountoftheinsurancepolicyimmediatelyratherthanatdeath.Oriftheymustbeconfinedtoanursinghome,theywillbeabletouseuptothefaceamountofthepolicytopaythenursinghomecosts.
Amidtheproliferationofinsuranceproduct,MacDonaldsays,"Thepositivesideofitistherearebetterproducts—they'recheaperandmoreflexible.Thenegativesideisthatit'smorecomplicatedandeasiertomakeamistake.Inthepast,itwasplainvanilla;everybodywassellingthesameproductandeverybodyhadtofindanagenttheyliked.Nowtherehasbeensignificantchangesinproductstructureanddesign,andbenefits,andsoitisworthwhiletoshoparound."
Thepurposeofinsuranceisto______.
A.giveyoumoneywheneveryouneed
B.protectyoufromfinancialrisks
C.savemoney
D.outlivemoney
31.
Whatisthemainpurposeofthepassage?
A.Tooutlinetheresearchfindingsonthebrainstructure.
B.Toexplainthelinkbetweensexandbrainstructure.
C.Todiscussthevariousfactorsthatcausebraindifferences.
D.Tosuggestnewareasinbrainresearch.
32.(67)
33.
Whatadvantagewilltherebeifonebuyslifeinsuranceinsteadofmakingotherinvestments?
A.Hewillhavemoneyforaretirementhome.
B.Itwillcosthimnothingifhebuysanlifeinsurance.
C.Profitheearnsfrominsuranceistax-free.
D.Itischeaptobuyalifeinsurance.
34.Theideaofafishbeingabletoproduceelectricitystrongenoughtolightlampbulbs—oreventorunasmallelectricmotor—isalmostunbelievable,butseveralkindsoffishareabletodothis.Evenmorestrangely,thiscuriouspowerhasbeenacquiredindifferentwaysbyfishbelongingtoverydifferentfamilies.
Perhapsthemostknownaretheelectricrays,ortorpedoes,ofwhichseveralkindsliveinwarmseas.Theypossessoneachsideofthehead,behindtheeyes,alargeorganconsistingofanumberofhexagonal-shapedcellsratherlikeahoneycomb.Thecellsarefilledwithajelly-likesubstance,andcontainaseriesofflatelectricplates.Oneside,thenegativeside,ofeachplate,issuppliedwithveryfinenerves,connectedwithamainnervecomingfromaspecialpartofthebrain.Currentgetsthroughfromtheupper,positivesideoftheorgandownwardtothenegative,lowerside.Generallyitisnecessarytotouchthefishintwoplaces,completingthecircuit,inordertoreceiveashock.
Thestrengthofthisshockdependsonthesizeoffish,butnewly-bornonesonlyabout5centimetersacrosscanbemadetolightthebulbofapocketflashlightforafewmoments,whileafullygrowntorpedogivesashockcapableofknockingamandown,and,ifsuitablewiresareconnected,willoperateasmallelectricmotorforseveralminutes.
Anotherfamousexampleistheelectriceel.Thisfishgivesanevenmorepowerfulshock.Thesystemisdifferentfromthatofthetorpedointhattheelectricplatesrunlongitudinallyandaresuppliedwithnervesfromthespinalcord.Consequently,thecurrentpassesalongthefishfromheadtotail.Theelectricorgansofthesefisharereallyalteredmusclesandlikeallmusclesareapttotire,sotheyarenotabletogenerateelectricityforverylong.PeopleinsomepartsofSouthAmericawhovaluetheelectriceelasfood,takeadvantageofthisfactbydrivinghorsesintothewateragainstwhichthefishdischargetheirelectricity.Thehorsesarelessaffectedthanamanwouldbe,andwhentheelectriceelshaveexhaustedthemselves,theycanbecaughtwithoutdanger.
TheelectriccatfishoftheNileandofotherAfricanfreshwatershasadifferentsystemagainbywhichcurrentpassesoverthewholebodyfromthetailtothehead.Theshockgivenbythisarrangementisnotsostrongastheothertwo,butisnonethelessunpleasant.Theelectriccatfishisaslow,lazyfish,fondofgloomyplacesandgrowstoabout1metrelong;itiseatenbytheArabsinsomeareas.
Thepowerofproducingelectricitymayservethesefishbothfordefenceandattack.Ifalargeenemyattacks,theshockwilldriveitaway;butitappearsthatthecatfishandtheelectriceelusetheircurrentmostoftenagainstsmallerfish,stunningthemsothattheycaneasilybeoverpowered.
Whichofthefollowingcanproducethestrongestshock?
A.Theelectriceel.
B.Theelectriccatfish.
C.Thenewly-bornelectrictorpedoes.
D.Thefully-grownelectricray.
35.
______producessmallamountsofwaste?
36.ShortagesoffluvaccinearenothingnewinAmerica,butthisyear'sisawhopper.Untillastweek,itappearedthat100millionAmericanswouldhaveaccesstoflushotsthisfall.ThenBritishauthorities,concernedaboutquality-controlproblemsataproductionplantinLiverpool,barredallfurthershipmentsbytheChironCorp.Overnight,theU.S.vaccinesupplydwindledbynearlyhalfandfederalhealthofficialsfoundthemselvesmakinganunusualplea.Insteadofbeseechingusalltogetvaccinated,they'renowurgingmosthealthypeoplebetweentheagesof2and64notto."Thisreemphasizesthefragilityofourvaccinesupply,"saysDr.MartinMyersoftheNationalNetworkforImmunizationInformation,"andthelackofredundancyinoursystem."
Whyissuchabasichealthservicesoeasilyknockedout?Mainlybecauseprivatecompanieshavehadlittleincentivetopursueit.Tocreateasingledoseoffluvaccine,amanufacturerhastogrowlivevirusina2-week-oldfertilizedchickenegg,thencracktheegg,harvestthevirusandextracttheproteinsusedtoprovokeanimmunere-sponse.Profitmarginsarenarrow,demandisfickleand,becauseeachyear'sfluvirusisdifferent,anyleftovervaccinegoestowaste.Asaresult,theUnitedStatesnowhasonlytwomajorsuppliers(ChironandAventisPasteur)—andwhenoneofthemrunsintotrouble,thereisn'tmuchtheothercandoaboutit."Avaccinemakercan'tjustcallupandorder40millionmorefertilizedeggs,"saysManonCox,ofConnecticut-basedProteinSciencesCorp."There'sawholeindustrythat'sscheduledtoproduceacertainnumberofeggsatacertaintime."
Sleekertechnologiesarenowintheworks,andexpertsarehopingthatthisyear'sfiascowillspeedthepaceofinnovation.Themainchallengeistoshiftproductionfromeggsintocellcultures—amediumalreadyusedtomakemostothervaccines.Fluvaccinesareharderthanmosttoproducethisway,butseveralbiotechcompaniesarenowpursuingthisstrategy,andoneculture-basedproduct(SolvayPharmaceuticals'Invivac)hasbeenclearedformarketinginEurope.
ForAmericans,theimmediatechallengeistomakethemostofalimitedsupply.Thegovernmentestimatesthat95millionpeoplestillqualifyforshotsunderthevoluntaryrestrictionsannouncedlastweek.That'snearlytwicethenumberofdosesthatclinicswillhaveonhand,butonly60millionAmericansseekoutshotsinanormalyear.Infact,manyexpertsarehopingtheshortagewillserveasanawarenesscampaign—encouragingthepeoplewhoreallyneedaflushottogetone.
Shortagesoffluevaccineshowthat______.
A.Americareliestoomuchonforeignsuppliers
B.thedemandoffluevaccinesishighthisyear
C.qualityproblemisaseriousprobleminfluvaccineproduction
D.thesupplyoffluvaccinesisratherweakandAmericahasnoback-upmeasurestomakeitup
37.
Thearticleconcludesthat______.
A.thecreationofjobsforallisanimpossibility
B.oureffortsandresourcesintermsoftacklingunemploymentareinsufficient
C.peopleshouldbeginsupportingthemselvesbylearningapracticalskill
D.weshouldhelpthosewhosejobsareonlypart-time
38.
Whichofthest
溫馨提示
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