2021-2022年广东省茂名市公共英语五级(笔试)知识点汇总（含答案）

2021-2022年广东省茂名市公共英语五级(笔试)知识点汇总（含答案）学校:________班级:________姓名:________考号:________

一、1.ListeningComprehension(15题)1.Inwhatpartoftheworldispotatoespeciallyafavoritefood?

2.Whichareaoftheworldcontributedtoanincreasebetween94/95and95/96?

3.WhatwerethetwothingsthatinterestedDr.Huber?

4.Whatlessoncouldbedrawnfromtheaccident?

A.Accuratecommunicationisofutmostimportance.

B.Pilotsshouldbeabletospeakseveralforeignlanguages.

C.Aircontrollersshouldkeepaclosewatchontheweather.

D.Cooperationbetweenpilotsandaircontrollersisessential.

5.Whydoesthewomanrefertofootball?

A.Toillustratemen'sinterest.

B.Toillustratethatmenusuallydonottouchuponanythingimportantintalkingabouttheirworkandinterest.

C.Toprovemenaremostlyfootballfans.

D.Toshowthatmenintentionallytrytoavoidtalkingabouttheirtruefeelings.

6.PartB

Directions:Youwillhear3conversationsortalksandyoumustanswerthequestionsbychoosingA,B,CorD.YouwillheartherecordingONLYONCE.

听力原文：Whenaconsumerfindsthatalliternsheorheboughtisbrokenorinsomeotherwaydoesnotreachthestandardofthemanufacturer'sclaimforit,thefirststepistopresentthewarranty.oranyotherrecordswhichmighthelp,atthestoreofpurchase.Inmostcases,thisactionwillproduceresults.However,ifitdoesnot,therearevariousmeanstheconsumersmayusetogainsatisfaction.

Asimpleandcommonmethodusedbymanyconsumersistocomplaindirectlytothestoremanager.Ingeneral,the“higher,up”theconsumertakeshisorhercomplaint,thefasterheorshecanexpectittobetackled.Insuchacase,itisusuallysettledintheconsumer'sfavor,assumingheorshehasajustclaim.

Consumersshouldcomplaininpersonwheneverpossible,butiftheycannotgettotheplaceofpurchase,itisacceptabletophoneorwritethecomplaintinaletter.

Complainingisusuallymosteffectivewhenitisdonepolitelybutfirmly,andespeciallywhentheconsumercandemonstratewhatiswrongwiththeiterninquestion.Ifthiscannotbedone,theconsumerwillsucceedbestbypresentingspecificinformationastowhatiswrong,ratherthanbymakinggeneralstatements.Forexample,“Theleftspeakerdoesnotworkatallandthesoundcomingoutoftherightoneisunclear”isbetterthan“thisstereodoesnotwork”.

Thestoremanagermayadvisetheconsumertowritetothemanufacturer.Ifso,theconsumershoulddothis,statingthecomplaintaspolitelyandasfirmlyaspossible.Butifapolitecomplaintdoesnotachievethedesiredresult,theconsumercangoastempfurther.Sheorhecanthreatentotakethesellertocourtorreportthesellertoaprivateorpublicorganizationresponsibleforprotectingconsumers'rights.

Whenaconsumerfindsthathispurchasehasafaultinit,whatisthefirstthingheshoulddo?

A.Complainpersonallytothemanager.

B.Threatentotakethemattertocourt.

C.Writeafirmletterofcomplainttothestoreofpurchase.

D.Showsomewrittenproofofthepurchasetothestore.

7.Ifaconsumerwantsaquicksettlementoftheproblem,whomisitbettertocomplainto?

A.Ashopassistant.

B.Thestoremanager.

C.Themanufacturer.

D.Apublicorganization.

8.Inwhichrespectdoesthestudents'organizationsseemtobeeffective?

A.Dealingwithacademicaffairsoftheuniversity.

B.Ensuringthatthestudentsobserveuniversityregulations.

C.Evaluatingstudents'performanceintheirstudy.

D.Keepingupthestudents'enthusiasmforsocialactivities.

9.StudyinginanEnglish-speakingcountryisaveryeffectivewaytolearnEnglish.

A.RightB.Wrong

10.Withonlyagoodbookweareverylikelytofeellonely.

A.TrueB.Fasle

11.Ourhumanfriendssometimesmaymakeusbored,butthefriendsinbooksmayalsobehurtbyus.

A.RightB.Wrong

12.What'sthecommonmisconceptionaboutartandscience?

13.ThechangesintheU.S.A.inthe1960sbeganwiththe______RightMovement.

14.Mr.Millerdidchangesonthehouseonlyforfun.

A.TrueB.Fasle

15.Whatwasthediscussiontopicofthepreviousclassmeeting?

A.NewEnglandmysterystories.

B.Eighteenth-centuryEnglishcriticism.

C.AcomparisonofpoemsofDickinsonandWhitman.

D.ThepoemsofWaltWhitman.

二、2.UseofEnglish(10题)16.(42)

17.

【C2】

18.(40)

19.

【C18】

20.

【C4】

21.

【C10】

22.Pollutionisa"dirty"word.Topollutemeanstocontaminate—topsoilorsomethingbyintroducingimpuritieswhichmake【31】______unfitoruncleantouse.Pollutioncomesinmanyforms.Weseeit,smellit,【32】______it,drinkit,andstumblethroughit.Weliterallylivedinandbreathepollution,and【33】______surprisingly,itisbeginningto【34】______ourhealth,ourhappiness,andourcivilization.

Oncewethoughtofpollution【35】______meaningsimplythesmog—thechoking,stinging,dirty【36】______thathoversovercities.Butairpollution,whileitis【37】______themostdangerous,isonlyonetypeofcontaminationamongseveral【38】______attackthemostbasiclifefunctions.

Throughtheuncontrolleduseofinsecticides,manhaspollutedtheland,【39】______thewildlife.By【40】______sewageandchemicalsintoriversandlakes,wehavecontaminatedour【41】______water.Wearepollutingtheoceans,too,killingthefishand【42】______deprivingourselves【43】______aninvaluablefoodsupply.

Partoftheproblemisourexploding【44】______.Moreandmorepeopleareproducingmorewastes.Butthisproblemisintensifiedbyour"throw-away"technology.EachyearAmericans【45】______of7millionautos,20milliontonsofwastepaper,25millionpoundsoftoothpastetubesand48millioncans.Wethrowawaygumwrappers,newspapers,andpaperplates.Itisnolongerwiseto【46】______anything.Todayalmosteverythingisdisposable.【47】______ofrepairingatoasteroraradio,itiseasierandcheapertobuyanotheroneanddiscardtheold,even【48】______95percentofitspartsmaystillbefunctioning.Babydiapers,whichusedtobemadeofreusablecloth,arenowpaperthrowaway.Soonwewillwearclothingmadeof【49】______:"Wearitonceandthrowitaway"willbethesloganofthefashionableconsciousness.

Whereisthisalltoend?Areweturningtheworldintoagiganticdump,oristherehopethatwecansolvethepollutionproblem?【50】______,solutionsareinsight.Afewofthemarepositivelyingenious.

(31)

23.(35)

24.(49)

25.

【C5】

三、3.ReadingComprehension(15题)26.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

27.

TheviewsofVasariandHomeonBotticelli'sproductsare______.

A.identicalB.complementaryC.oppositeD.similar

28.(67)

29.(69)

30.(77)

31.(76)

32.

Themainpointofthepassageisthatspecialprotectivelaborlawsforwomenworkersare______．

A.unnecessarybecausemostworkersarewellprotectedbyexistinglaborlaws

B.harmfultotheeconomicinterestsofwomenworkerswhileofferingthemlittleornoactualprotection

C.notworthpreservingeventhoughtheydorepresentahardwonlegacyofthe1abormovement

D.controversialbecausemaleworkersreceivelessprotectionthantheyrequire

33.WorldleadersmetrecentlyatUnitedNationsheadquartersinNewYorkCitytodiscusstheenvironmentalissuesraisedattheRioEarthSummitin1992．TheheadsofstateweresupposedtodecidewhatfurtherstepsshouldbetakentohaltthedeclineofEarth'slife-supportsystems．Infact，thismeetinghadmuchtheflavouroftheoriginalEarthSummit．Towit：emptypromises，hollowrhetoric，bickeringbetweenrichandpoor，andirrelevantinitiatives．ThinkU.S.Congressinslowmotion．

Almostobscuredbythistorporisthefactthattherehasbeensomeremarkableprogressoverthepastfiveyears—realchangesintheattitudeofordinarypeopleintheThirdWorldtowardfamilysizeandadawningrealisationthatenvironmentaldegradationandtheirownwell-beingareintimately，andinversely，linked．Almostnoneofthis，however,hasanythingtodowithwhatthebureaucratsaccomplishedinRio．

Oritdidn'taccomplish．OneitemontheagendaatRio，forexample，wasarenewedefforttosavetropicalforests．(ApreviousUN-sponsoredinitiativehadfallenapartwhenitbecameclearthatitactuallyhasteneddeforestation．)AfterRio，aUNworkinggroupcameupwithmorethan100recommendationsthathavesofargonenowhere．Oneproposedforestrypactwoulddolittlemorethanimmunizingwood-exportingnationsagainsttradesanctions．

AnefforttodraftanagreementonwhattodoabouttheclimatechangescausedbyCO2andothergreenhousegaseshasfaredevenworse．BlockedbytheBushAdministrationfromsettingmandatorylimits，theUNin1992calledonnationstovoluntarilyreduceemissionsto1990levels．Severalyearslater，it'sasifRiohadneverhappened．AnewclimatetreatyisscheduledtobesignedthisDecemberinKyoto，Japan，butgovernmentsstillcannotagreeontheselimits．Meanwhile，theU.S.produces7%moreCO2thanitdidin1990，andemissionsinthedevelopingworldhaverisenevenmoresharply．Noonewouldconfusethe“Rioprocess”withprogress．

Whilegovernmentshaveditheredatapacethatcouldmakedriftingcontinentsimpatient，peoplehaveacted．Birth-ratesaredroppingfasterthanexpected，notbecauseofRiobutbecausepoorpeoplearedecidingontheirowntoreducefamilysize．Anotherpositivedevelopmenthasbeenagrowingenvironmentalconsciousnessamongthepoor．FromslumdwellersinKarachi，Pakistan，tocolonistsinRondonia，Brazil，urbanpoorandruralpeasantsalikeseemtorealizethattheypaythebiggestpriceforpollutionanddeforestation．Thereiscauseforhopeaswellinthegrowingrecognitionamongbusinesspeoplethatitisnotintheirlong-terminteresttofightenvironmentalreforms．JohnBrowne，chiefexecutiveofBritishPetroleum，boldlyassertedinamajorspeechinMaythatthethreatofclimatechangecouldnolongerbeignored．

Thewriter'sgeneralattitudetowardstheworldleadersmeetingattheUNis______．

A.supportiveB.impartialC.criticalD.comedic

34.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,harvestthevirusandextracttheproteinsusedtoprovokeanimmuneresponse.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

35.

WhatadvicemightMaquetgivetothosewhohaveacrucialtestthenextday?

A.Memorizinggrammarwithgreatefforts.

B.Studytextbookswithcloseattention.

C.Havetheirbrainimagesrecorded.

D.Enjoytheirsleepatnightsoundly.

36.

Toaudience,thetypicalAmericanastronaut______.

A.hasalimitedvocabulary

B.isaclean-cut,cheerfulandfrankguy

C.can'tunderstandasophisticatedjoke

D.iswell-builtbutratherslow-witted

37.

______providesaround20%oftheworld’selectricity?

38.

Whichofthefollowingmightbetheresultfromtheuseofefficienttechnologyincorporations?

A.Thequantityofproductswillbeconsiderablyincreased.

B.Thecostofcomputerswillbedecreased.

C.Theperdocumentcostofinformationprocessingwillbereduced.

D.Thenewestinformationwillbeeasiertoobtain.

39.PartB

Directions:Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66-70,choosethemostsuitableparagraphfromthelistA-Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.

DoesthepublisherofDouglasStarr'sexcellentBlood—AnEpicHistoryofMedicineandCommerceactuallyexpecttosellmanycopies?Whoeverchosethetitleiscertaintoscareoffthesqueamish,andthesubtitle,whichmakestheeffortsoundlikeadry,densesurveytext,hasreallydonethisbookadisservice.Infact,thebraveandcuriouswillenjoyabrightlywritten,intriguing,anddisquietingbook,withsomeimportantlessonsforpublichealth.

66.______

Thebookbeginswithahistoricalviewoncenturiesofloreaboutblood—inparticular,thebeliefthatbloodcarriedtheevilhumorsofdiseaseandrequiredoccasionaldraining.AsrecentlyastheRevolutionaryWar,bloodlettingwaswidelyappliedtotreatfevers.Theideaofusingoneperson'sbloodtohealanotherisonlyabout75yearsold—althoughroguescientistshadexperimentedwithtransfusinganimalbloodatleastasearlyasthe1600s.Thefirsttransfusionexperimentsinvolvedstitchingadonor'svein(inearlycasesthephysician's)toapatient'svein.

67.______

Sabotagedbynotionsaboutthe"purity"oftheirgroups'blood,JapanandGermanylaggedwellbehindtheAlliesintransfusionscience.OncetheyrealizedtheywerelosinginjuredtroopstheAllieshadlearnedtosave,theytriedtocatchup,conductinghorribleandunproductiveexperimentssuchasdrainingbloodfromPOWsandinjectingthemwithhorsebloodorpolymers.

68.______

Duringtheearlytomid-1980s,Starrsays,10,000Americanhemophiliacsand12,000otherscontractedHIVfromtransfusionsandreceiptofbloodproducts.Bloodbanksbothhereandabroadmovedslowlytoacknowledgethethreatofthevirusandinsomecasesevenactedwithcriminalnegligence,allowingthedistributionofbloodtheyknewwastainted.Thisisnotnewmaterial.ButStarr'sinsightsaddadimensiontoastoryfirstexploredinthelateRandyShilts'sAndtheBondPlayedOn.

69.______

Isthebloodsupplysafenow?Screeningproceduresandtechnologyhavegottenmuchmoreadvanced.Yetit'sdisturbingtoreadStarr'scontentionthatapersonreceivingmultipletransfusionstodayhasabouta1in90,000chanceofcontractingHTV—farhigherthanthe"oneinamillion"figurethatbloodbankersonceblithelyandfalselyquoted.Moreover,newpathogensthreatentoemergeandspreadthroughtheincreasinglyhigh-speed,globalblood-productnetworkfasterthansciencecanstopthem.ThispromptsStarrtoarguethattoday'sbloodstoresare"simultaneouslysaferandmorethreatening"thanwhendistributionwaslesssophisticated.

70.______

A.Themassivewartimeblooddriveslaidthegroundworkformodernblood-banking,whichhassavedcountlesslives.Unfortunately,thesedevelopmentsalsosetthestageforagreatmoderntragedy—thespreadofAIDSthroughtheinternationalbloodsupply.

B.Thereissomuchdrama,power,resonance,andimportantinformationinthisbookthatitwouldbeashameifthesqueamishwerescaredoff.Perhapsthekeylessonisthis:Thepublichealthmustalwaysbeguardedagainstthepressuresandpitfallsofcompetitivemarketsandhumanfallibility.

C.Inhischronicleofaresource,Starrcoversanenormousamountofground.Hegivesusanaccountofmankind'sattitudesovera400-yearperiodtowardsthis"precious,mysterious,andhazardousmaterial";ofmedicine'seffortstounderstand,control,anddevelopblood'slife-savingproperties;andofthemultibillion-dollarindustrythatbenefitsfromit.Hedescribesdisparateinstitutionsthatuseblood,fromthemilitaryandthepharmaceuticalindustrytob

40.

Privacystandardsmadebyindividualstatesareineffectivebecause______.

A.thestandardsofdifferentstatescontradicteachother

B.onlinecommunicationisnotrestrictedtoanystate

C.thesestandardsignorethefederallawonthematter

D.thesestandardsareonlyapplicabletoregionalwebsites

四、阅读理解(5题)41.

第

40

题

isnotrenewable?__________

42.

根据下列文章回答36～40题：

第

36

题

ThetwoBrooklynitesinthefirstparagraphwere__________．

43.

第

50

题

wasadaptedfromaclassicTVsituationcomedy?__________

44.

第

27

题

WhatdoestheauthorsayabouttheordinarypeopleintheThirdWorldcountries?

45.

第

32

题

AccordingtoLemaitre，theseparategalaxiesformed_________．

参考答案

1.NorthernEurope/NorthAmerica

2.South(and)EastAsia/S(+)EAsia/(NOTSouth-eastAsia)South(and)EastAsia/S(+)EAsia/(NOTSouth-eastAsia)

3.Physicsandmusic

4.A

5.B

6.D

7.B

8.B

9.A

10.B

11.B

12.Completelyseparate/exclusive．

13.Civil

14.B

15.D

16.butbut解析：这里表达的前后句意是一种转折关系。前面说“hemayhavedreams，”而后面“hedoesnotallowthemtoblockhisknowledge…”的意思却是“但是他也不会让这些梦想阻挡自己对什么是现实的理解。”故答案为but。

17.lookinglooking解析：与介词for的固定搭配，意为“寻求…”，这里指的是寻求新的价值观。所以此处应填“looking”。

18.dumpingdumping解析：由本句句意“通过将污水和化学物质…人河流和湖泊，…”可知，此空处显然应为“倒”。又因为介词后只能用dumping，而不能用dump。

19.fromfrom解析：“来自…的数据”，要用介词“from”。所以此处应填“from”。

20.whosewhose解析：此句意为“StephanieThomas，一位学习辅导老师，…发现已经发表了…。”由此可知，空处所填单词必为whose，引导定语从句，修饰teacher。

21.beingbeing解析：avoiddoingsth．意为“避免…”，avoid后必须跟名词或动名词。beovercritical意为“过分挑剔的”。

22.itit解析：本句意为“‘污染’意思是弄脏——表层土或什么东西，通过引进杂质，这使…不健康或不干净。”显然，此空处应指topsoilorsomething，因为前面已出现，所以用it来代替。

23.boughtbought解析：本句的前一句话说“顾客认为他们需要一些他们其实不需要的商品。”这就是广告的作用。但是买完之后，“他们却不知道当时为什么买了这种商品。”这里是被动的句式。故答案为bought。

24.waswas解析：此空显然应是句子的谓语成分，应填动词的过去式。

25.boughtbought解析：本句的前一句话说“顾客认为他们需要一些他们其实不需要的商品。”这就是广告的作用。但是买完之后，“他们却不知道当时为什么买了这种商品。”这里是被动的句式。故答案为bought。

26.D解析：第一段最后一句话指出了疫苗短缺所暴露出来的问题。“Thisreemphasizesthefragilityofourvaccinesupply，”saysDr．MartinMyersoftheNationalNetworkforImmunizationInformation，“andthelackofredundancyinoursystem．”“这再次凸显出我们疫苗供应的脆弱性，”全国免疫信息网的马丁·迈尔斯医生说，“此外，我们也没有必要的补救机制。”因此正确答案为D。

27.C解析：瓦萨利在文中第一段说到“VasariexpressedanuneasewithBotticelli'swork，…”说明他的态度是反对的，后来在最后一段中间部分“However,HomearguedthatBotticelli…emphasizedclear