2022-2023年吉林省通化市公共英语五级(笔试)真题一卷(含答案)

2022-2023年吉林省通化市公共英语五级(笔试)真题一卷(含答案)学校:________班级:________姓名:________考号:________

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

2.Inwhichrespectdoesthestudents'organizationsseemtobeeffective?

A.Dealingwithacademicaffairsoftheuniversity.

B.Ensuringthatthestudentsobserveuniversityregulations.

C.Evaluatingstudents'performanceintheirstudy.

D.Keepingupthestudents'enthusiasmforsocialactivities.

3.PartA

Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.

听力原文：Fromgoodreadingwecanobtainpleasure,companionship,experience,andinstruction.Agoodbookmayabsorbourattentionsocompletelythatforthetimebeingweforgetoursurroundingsandevenouridentity.Readinggoodbooksisoneofthegreatestpleasuresinlife.Itincreasesourcontentmentwhenwearecheerful,andlessensourtroubleswhenwearesad.Whatevermaybeourmainpurposeinreading,ourcontactwithgoodbooksshouldneverfailtogiveusenjoymentandsatisfaction.

Withagoodbookinourhandsweneedneverbelonely.Whetherthecharactersportrayedaretakenfromreallifeoraretotallyimaginarytheymaybecomeourcompanionsandfriends.Inthepagesofbookswecanwalkwiththewiseandthegoodofalllandsandalltimes.Thepeoplewemeetinbooksmaydelightuseitherbecausetheyresemblehumanfriendswhomweholddearorbecausetheypresentunfamiliartypeswhomwearegladtowelcomeasnewacquaintances.Ourhumanfriendssometimesmayboreus,butthefriendswemakeinbooksneedneverwearyuswiththeircompany.Byturningthepageswecandismissthemwithoutanyfearofhurtingtheirfeelings.Whenhumanfriendsdesertus,goodbooksarealwaysreadytogiveusfriendship,sympathy,andencouragement.

Oneofthemostvaluablegiftsbestowedbybooksisexperience.Fewofuscantravelfarfromhomeorhaveawiderangeofexperiences,butallofuscanleadvariedlivesthroughthepagesofbooks.Whetherwewishtoescapefromtheseeminglydullrealitiesofeverydaylifeorwhetherweexpecttovisitsomefar-offplace,abookwillhelpuswhennothingelsecan.Totravelbybookweneednobankaccounttopayourway;noairshiporoceanlinerorstream-linedtraintotransportus;nopassporttoenterthelandofourheart'sdesire.Throughbookswemaygetthethrillofhazardousadventurewithoutdanger.Wecanclimbloftymountains,bravetheperilsofanantarcticwinter,orcrossthescorchingsandsofthedesert,allwithouthardship.InbookswemayvisitthestudiosofHollywood;wemayminglewiththegaythrongsofmeParisboulevards;wemayjointhepicturesquepeasantsinanAlpinevillageorthekindlynativesonaSouthSeaisland.Indeed,throughbooksthewholeworldisoursfortheasking.Thepossibilitiesofourliteraryexperiencesarealmostunlimited.Thebeautiesofnature,theenjoymentofmusic,thetreasuresofart,thetriumphsofarchitecture,themarvelsofengineeringareallopentothewonderandenjoymentofthosewhoread.

Agoodbookmaydrawourattentionsocompletelythatweforgetoursurroundingsandevenouridentityforthetimebeing.

A.TrueB.Fasle

4.Governmentbuildingsoftenhavespecialpathsforthosepeoplehandicapped.

A.TrueB.Fasle

5.Whichareaoftheworldcontributedtoanincreasebetween94/95and95/96?

6."Totravelbybook"meanstotakeimaginaryjourneystotheplacesmentionedinthebook.

A.RightB.Wrong

7.What'stheessentialpointweshouldrealizeaboutspeechandwriting?

8.Whodonotprobablynoticethebeautyoftheoreticalphysics?

9.Judgingbytheextraordinarilywarmclothessomepeoplewear,whatmightwelearnaboutthem?

A.Theymaybehomesickandfeelinsecure.

B.Theyareeithercoldorverysick.

C.Theymaytrytoattractotherpeople'sattention.

D.Theywanttoprotectthemselvesfromphysicalinjuries.

10.听力原文：M:Doyouthinkwomenaregenerallybetteratcertainthingsthanmen?

W:Well,itseemstomewomenaremuchbetteratdealingwithmorethanonethingatatime.Idon'tknowwhetherthishastodowiththedifferenceintheirbrainorwhetherit'sjusthowtheyhavetocopemoreoftenwithmorethanonething.Forexample,itisusuallywomenwhowork,havebabies,lookafterthebabiesandtakethemainresponsibilityforlookingafterthehome.Andmaybeit'spracticingallthatmakeswomenbebetterabletodomorethanonethingatatime.Men,itseemstome,canonlyconcentrateononethingatatime,includingboringdomesticthingslikewashingthedishes.Ifafriendofminewhoisamanwashesthedisheshe'llfinditquitedifficulttoconductaconversationatthesametime,whereasifI'mdoingthedishesI'malwaystalkingtosomeone,probablycookingsomethingaswell,andfindingthatnottoostressful.

M:Doyouthinkwomenaremoreinterestedinpersonalrelationshipsthanmen?

W:Generally,yes,thoughagainIdon'tknowifthisisbecausethatfromanearlyagetheyaretaughttopleaseotherpeople,whereasmenarealwaystaughttopleasethemselves.Ithinkrelationshipsaremorecentraltomostwomen'slives.Forexample,Ithinkmendon'thaveverygoodconversationswitheachother,whereaswomendo.Ifyoulistentowomentalking,oftentheywillbehaving,afterarelativelyshorttimeofknowingeachother,fairlypersonalandtruthfulconversations,whereasmenhaveconversationsnotaboutwhatI'dcallrealthings.Theywilltalkabouttheirworkinaverysuperficialway,ortheirinterestsinaverysuperficialway,forexample,andfootballisthe—um—justasortofwayformentorelatetoeachotherwithoutactuallysayinganythingimportant,itappearstome.

Accordingtothewoman,whywomenaremuchbetteratdealingwithmorethanonethingatatime?

A.Shedoesn'tknowthereasonexactly.

B.Becausewomenaresmarterthanmen.

C.Becausewomenhavemorethingstodealwiththanmen.

D.Becausemenalwaysrefusetodealwithmorethanonethingatthesametime.

11.Whatdoesthespeakerrefertheactivityofanyorganizationto?

12.Whichofthefollowingcanbecalledasa"lameduck"?

A.Adisabledlittlechild.

B.Ahard-workingfarmer.

C.Apoliticianwhohastocometotheendofhispower.

D.Anabsent-mindedoldprofessor.

13.Dr.WilsonsuggeststhatWangshouldextendhisstayattheuniversity.

A.RightB.Wrong

14.HowmanypsychologicaltypesofpeoplearethereaccordingtoJung'sideas?

15.Accordingtothespeaker,whatdoesamanagerhavetotreateveryoneofhisstaffas?

二、2.UseofEnglish(10题)16.

【C16】

17.(50)

18.(38)

19.(34)

20.(45)

21.(33)

22.

【C19】

23.

【C4】

24.(37)

25.

【C3】

三、3.ReadingComprehension(15题)26.(78)

27.(67)

28.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

29.(69)

30.

______canpromotetourismdevelopment?

31.(73)

32.(70)

33.

WhatdoestheauthorsayabouttheordinarypeopleintheThirdWorldcountries?

A.Theyarebeginningtorealizetheimportanceofenvironmentalprotection.

B.Theybelievethatmanychildrenarenecessaryforprosperity.

C.Theyarereluctanttoacceptadvicefromthegovernment.

D.Theythinkthatearningalivingismoreimportantthannatureconservation.

34.(72)

35.

Whichofthefollowingistrueaccordingtothetext?

A.Ashanthineedstoreceivegene-therapytreatmentconstantly.

B.Despitethehugefunding,generesearcheshaveshownfewpromises.

C.Therapeuticgenesarecarriedbyharmlessviruses.

D.Gene-dopingisencouragedbyworldagenciestohelpathletesgetbetterscores.

36.PartB

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

Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66～70,choosethemostsuitableparagraphfromthelistA～Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.

A．Thereremained,however,the“easier”labor—thelaborthatrequiredthehumaneyes,ears,judgmentandmindbutnosweating.Itneverthelesshaditsmiseries,forittendedtobedull,repetitious,andboring.Andthereisalwaysthesoursenseofendlesslydoingsomething.unpleasantundercompulsion.

B．Foronething,muchofhumaneffortthatistodayputinto“mimingtheworld”willbeunnecessary.Withcomputers,robotsandautomation,agreatdealofthedailygrindwillappeartoberunningitself.Thisisnothingstartling.ItisatrendthathasbeenrapidlyonitswayeversinceWorldWarⅡ.

C．Andnowwestandatthebrinkofachangethatwillbethegreatestofall,forworkinitsoldsensewilldisappearaltogether.Tomostpeople,workhasalwaysbeenanefforffulexercisingofmindorbody—compelledbythebitternecessityofearningthenecessitiesoflife—plusanoccasionalperiodofleisureinwhichtorestorhavefun.

D．Clearlytherewillbeapainfulperiodoftransition,onethatisstartingalready,andonethatwillbeinfullswingasthe21stcenturybegins.

E．Inthefirstplace,thecomputeragewillintroduceatotalrevolutioninournotionsofeducation,andisbeginningtodosonow.Thecomingofthecomputerwillmakelearningfun,andasuccessfullystimulatedmindwilllearnquickly.Itwillundoubtedlyturnoutthatthe“average”childismuchmoreintelligentandcreativethanwegenerallysuppose.Therewasatime,afterall,whentheabilitytoreadandwritewasconfinedtoaverysmallgroupof“scholars”andalmostallofthemwouldhavescoutedthenotionthatjustaboutanyonecouldlearntheintricaciesofliteracy.Yetwithmasseducationgeneralliteracycametobeafact.

F．Thismeansthatthedull,theboring,therepetitious,themind-stultifyingworkwillbegintodisappearfromthejobmarket—isalreadybeginningtodisappear.This,ofcourse,willintroducetwovitalsetsofproblem—isalreadyintroducingthem.

Periodicallyinhistory,therecomeperiodsofgreattransitioninwhichworkchangesitsmeaning.Therewasatime,perhaps10,000yearsago,whenhumanbeingsstoppedfeedingthemselvesbyhuntinggameandgatheringplants.andincreasinglyturnedtoagriculture.Inaway,thatrepresentedtheinventionof“work”.

Then,inthelatterdecadesofthe18thcentury,astheIndustrialRevolutionbeganinGreatBritain,therewasanothertransitioninwhichthesymbolsofworkwerenolongerthehoeandtheplow;theywerereplacedbythemillandtheassemblyline.66．______

WiththeIndustrialRevolution,machinery—poweredfirstbysteam,thenbyelectricityandinternalcombustionengines—tookoverthehardphysicaltasksandrelievedthestrainonhumanandanimalmuscles.

67．______

Andyet,suchjobshavebeencharacteristicofthehumanconditioninthefirstthree-quartersofthe20thcentury.They'vemadetoolittledemandonthehumanmindandspirittokeepthemfreshandalive,madetoomuchdemandforanymachinetoservethepurposeuntilnow.

Theelectroniccomputer,inventedinthe1940'sandimprovedatbreakneckspeed,wasamachinethat,forthefirsttime,seemedcapableofdoingworkthathaduntilthenbeenthepreserveofthehumanmind．Withthecoming

37.

Accordingtothepassage,thesolutionofferedbythetechnicianwas______.

A.effectiveB.economicalC.unpracticalD.unacceptable

38.

WhichofthestatementsisNOTtrue?

A.Astronautshaveagoodjobwhichdemandshigh.

B.ThedivorcerateinNASAisverylow.

C.TheNASAastronautsmostlyfindfriendsfromamongtheirwork.

D.Thereisnoyoungermaninhistwentiesinthespaceship.

39.Throughouthistorytherehavebeenmanyunusualtaxesleviedonsuchthingsashats，beds，baths，marriages，andfunerals．AtonetimeEnglandleviedataxonsunlightbycollectionfromeveryhouseholdwithsixormorewindows．Andaccordingtolegend，therewasaTurkishrulerwhocollectedataxeachtimehedinedwithoneofhissubjects．Why?Topayforthewearandtearonhisteeth!

Differentkindsoftaxeshelptospreadthetaxburden．Anyonewhopaysataxissaidto“beartheburden”ofthetax．Theburdenofataxmayfallmoreheavilyonsomepersonsthanonothers．Thatiswhythethreelevelsofgovernmentinthiscountryuseseveralkindsoftaxes．Thisspreadstheburdenoftaxesamongmorepeople．Fromthestandpointoftheiruse，themostimportanttaxesareincometaxes，propertytaxes，salestaxes，andestate，inheritance，andgifttaxes．Someareusedbyonlyonelevelofgovernment；othersbytwoorevenallthreelevels．Togetherthesedifferenttaxesmakeupwhatiscalledourtaxsystem．

Incometaxesarethemainsourceoffederalrevenues．Thefederalgovernmentgetsmorethanthree-fourthsofitsrevenuefromincometaxes．Asitsnameindicated，anincometaxisataxonearnings．Bothindividualsandbusinesscorporationspayafederalincometax．

TheoldesttaxintheUnitedStatestodayisthepropertytax．Itprovidesmostoftheincomeforlocalgovernments．Itprovidesatleastapartoftheincomeforallbutafewstates．Itisnotusedbythefederalgovernment．

Asalestaxisataxleviedonpurchases．MostpeoplelivingintheUnitedStatesknowaboutsalestaxessincetheyareusedinallbutfourstates．Actuallythereareseveralkindsofsalestaxes，butonlythreeofthemareimportant．Theyaregeneralsalestaxes，excisetaxes，andimporttaxes．

Otherthreecloselyrelatedtaxesareestate，inheritance，andgifttaxes．Everythingapersonowns，includingbothrealandpersonalproperty，makesuphisorherestate．Whensomeonedies，ownershipofhisorherpropertyorestatepassesontooneormoreindividualsororganizations．Beforethepropertyistransferred，however，itissubjecttoanestatetaxifitsvalueexceedsacertainamount．

ThereasonthattheTurkishrulercollectedadiningtaxistopayfor_______．

A.theinconvenienceforhimtoputonandtakeoffclothes

B.thedamagethateatingdidtohisteeth

C.hiseffortstocutthefoodintopieces

D.thedecayofhisteethbecauseofsugar

40.PartA

Directions:ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.

Inathree-monthperiodlastyear,twoBrooklyniteshadtobecutoutoftheirapartmentsandcardedtohospitalonstretchersdesignedfortransportingsmallwhales.TheNationalAssociationtoAdvanceFatAcceptance(NAAFA)arguesthatitwasnottheircombined900kgbulkthatmadethemill.Obesity,accordingtoNAAFA,isnotbadforyou.And,evenifitwas,thereisnothingtobedoneaboutit,becausegenesdictateweight.Attemptingtoeatlessmerelyslowsmetabolism,havingpeopleaschubbyasever.

ThisisthefatlashmovementthatcausesAmerica'sslimmingindustrysomuchpain.InhisbookBinFatLies(Ballantine,1996),GlennGaessersaysthatnostudyyethasconvincinglyshownthatweightisanindependentcauseofhealthproblems.Fatnessdoesnotkillpeople;thingslikehypertension,coronaryheartdiseasesandcancerdo.MichaelFumento,authorofTheFatoftheLand(Viking,1997),ananti-fatlashdiatribe,comparesDrGaesser'slogicwithsayingthattheguillotinedidnotkillLouisXVI:Rather,itwastheseveringofhisvertebrae,thecuttingofallthebloodvesselsinhisneck,and...thetraumacausedbyhisheaddroppingseveralfeetintoawickerbasket.

Beingfatkillsinseveralways.Itmakespeoplefarmorelikelytosufferfromheartdiseaseorhighbloodpressure.Evenmoderateobesityincreasesthechanceofcontractingdiabetes.Being40%overweightmakespeople30%～50%morelikelytodieofcancer,accordingtotheAmericanCancerSociety.Extremefatnessmakespatientssomuchlesslikelytosurvivesurgerythatmanydoctorsrefusetooperateuntiltheyslim.

Theideathatbeingoverweightiscausedbyobesitygenesisnotwhollyfalse:researchershavefoundanumberofgenesthatappeartomakesomepeoplebumoffenergyataslowerrate.Butgenesarenotdestiny.Thedifferencebetweensomeonewithageneticpredispositiontogainweightandsomeonewithoutappearstoberoughly40calories-oraspoonfulofmayonnaise—aday.

Analternativefatlashargument,advancedinbookssuchasDeanOnrush'sEatMore,WeightLess(HarperCollies,1993)andDateAtrens'sDon'tDiet(WilliamMorrow,1978),isthatfatnessisnotamatterofeatingtoomuch.TheynotethatasAmericans'weighthasballoonedoverthelastfewdecades,theirreportedcaloricintakehasplunged.Thissimplyexplainspeople'sownrecollectionofhowmuchtheyeatisextremelyunreliable.Andastheygrowfatter,peoplefeelguiltyandaremorelikelytofibabouthowmuchtheyeat.Allreputablestudiesshowthateatinglessandexercisingreduceweight.

Certainly,thebody'smetabolismslowsalittlewhenyouloseweight,becauseittakeslessenergytocarrylessbulkaround,andbecausedietingcanmakethebodyfearitisabouttostarve.Butasensiblelow-fatdietmakesweightlosspossible.Thefatlashmovementisdangerous,becauseslimmerswilloftenfindanyexcusetogiveup.Totellpeoplethatitishealthytobeobeseistoencouragethemtolivesickanddieyoung.

ThetwoBrooklynitesinthefirstparagraphwere______.

A.membersoftheNWA

B.typicalvictimsofoverweight

C.membersofthe"fatlash"movement

D.proofthatthefatlashmovementisgainingstrength

四、阅读理解(5题)41.

第

50

题

5.__________

42.

第

34

题

HowmanystateslevyimporttaxesintheU．S．A．?

43.

根据下列选项回答41～50题：

第

41

题

tellsthestoryaboutthelastgreatwar?__________

44.

根据下列文章回答21～25题：

第

21

题

Thebesttitleofthispassagecouldbe__________．

45.

第

38

题

WhatCanbeconcludedaccordingtotheauthor’sviewofthe“obesitygenes”?

参考答案

1.Apostoffice

2.B

3.A

4.B

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

6.A

7.Theyaredifferent．

8.Thegeneralpublic

9.A

10.A

11.Humanactivity．

12.C

13.B

14.Four．

15.Asindividuals．

16.toto解析：“shift”意为“转变”，“从…到…的转变”应该用介词“to”。所以此处应填“to”。

17.towardtoward解析：作者要表达的意思是“我怎么才能对别人诚实。”英语中表达“对某人…”一般是用介词toward。故答案为toward。

18.diddid解析：据38题解析，由于while意为“尽管”，才有后面起强调作用的did，意为“确实”，言下之意有转折之意。

19.importantimportant解析：从本句后面的一句话可以看出，Adown-to-earthperson就算是重要的人物，他们也不会把这种显赫写在脸上。所以前面应填important。故答案为important.

20.whowho解析：此空后的句子应为teacher的定语从句，故此空处应填who，引导修饰人的定语从句。

21.pollpoll解析：此句意为“Synovate市场研发公司的调查显示”，poll的意思为“民意调查”。因此答案为“poll”。

22.thosethose解析：文章中提到“16-19岁之间的日本青年跟25-29岁之间的青年对比”，这里缺少代词，替代“Japaneseyouth”。所以此处应填“those”

23.forfor解析：解析见上题。desire后面用介词for。故答案为for，表示“…的欲望”。

24.workwork解析：根据上文，对比的是对工作的态度，所以此处应填“work”。

25.productionproduction解析：从前一句话“Themanufacturersgobeyondonlytellingconsumersabouttheirproducts.”可以看出，一方面广告要介绍自己的产品，而第二个目的就是卖掉自己的产品。所以这里作者想要表达的意思是“广告要使得顾客有一种购买的欲望去购买自己的产品。”故答案为production。

26.C解析：越来越多的人赞成Stiglitz的观点，批评自由贸易和全球化，从“Suchclaimsarenolongereredible，forStiglitzispartofasmallbutgrowinggroupofeconomists，sociologistsandpoliticalscientists…”growing一词可以看出答案。所以本题应选C。

27.AA解析：由此空的上下两段可以得到答案。上段说的如何去看人的两种方法，而后面的一段接着说的地点问题。所以这里的“dependingonwherethemeetingtakesplace.”符合句意，故应选A。

28.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。

29.FF解析：后面的一段说明了相反的情况。“Thepersonwearingtheglasses…”与选项中的“…twopeoplewearsdarkglasses”相对应，故应选F。

30.D解析：由D中的advantage中的第四句话“Windfarmscanbetouristattractions．”可知答案为D。

31.A解析：由A中的第一段最后一句话“Atpresent，thePalaceisanelaboratemuseumthatpresentsthel