2021年安徽省淮北市公共英语五级(笔试)真题一卷(含答案)

2021年安徽省淮北市公共英语五级(笔试)真题一卷(含答案)学校:________班级:________姓名:________考号:________

一、1.ListeningComprehension(15题)1.Chainsmakelearningflexible.

A.RightB.Wrong

2.Accordingtothespeaker,howdodeveloperscontributetothereductionofamphibianpopulation?

A.Bytakingoverponds.

B.Byconstructingsewers.

C.Bybuildingdamsonrivers.

D.Byfloodingmarshes.

3.听力原文：Iwanttotalktodayaboutsomestudies.Theyseemtoindicatethatthereisastartlingworld-widedeclineinthenumberofamphibians,suchasflogs,toadsandsalamanders.There'slittledoubtthatonereasonwhythenumberofamphibiansisdecliningistheirhabitatshavebeendestroyedwhenthedevelopersfillinpondsandmarshestobuildhouses.Amphibianscan'tjustmovesomewhere.Theyneedwatertolaytheireggsin.Anotherproblemisthegrowingfishindustry.Anotherrangeofpopularpoolfishsuchascarphavebeenintroducedtomanylakesandpondsallovertheworld.Raisingandsellingthesefishcanbeprofitable,butthefisheattheeggsandoffspringofamphibiansthatwerealreadylivinginthelakesandponds.Otherfactorscouldbecontributingtothedeclineincludeacidrainandthespreadofpesticideresidues.Manypesticidesthatfarmersaddedtotheircropsareeventuallywashedawaybytherainandendupinpondsandotherbodiesofwaterwhereamphibianslive.Amphibiansareespeciallyvulnerabletopesticidesdissolvedinthewaterbecauseoftheirmoistskins.Watercanpassthroughamphibiansallowingtoxinsdissolvedinthewatertoentertheamphibians'body.

Whatdoesthespeakermainlydiscuss?

A.Thedistributionofdifferentspeciesofamphibians.

B.Possiblereasonsforreductioninthenumberofamphibians.

C.Theeffectsofenvironmentalchangeonthefishindustry.

D.Guidelinesfortheresponsibleuseofpesticides.

4.WhichofthefollowingstatementsisNOTTRUE?

A.Gettingofftoworkwithaminimumefforthelpssaveone'senergy.

B.Dr.Kleimanexplainswhypeoplereachtheirpeaksatdifferenthoursofaday.

C.Habithelpsapersonadapttohisownenergycycle.

D.Childrenhaveenergycycles,too.

5.WhodidthepeopleusuallygiveletterstoaftertheEnglishcolonistsjustarrivedatAmerica?

6.Calories,naturalfood,mountainsandthedistancefrommodemcitiesaretheonlycommonthingsinthethreeregions.

A.RightB.Wrong

7.whichisthemostpopularmajorofstudy?

8.Do-it-YourselfhasbecomeoneofMrMiller'shobbies.

A.RightB.Wrong

9.Calories,naturalfood,mountainsandthedistancefrommoderncitiesaretheonlycommonthingsinthethreeregions.

A.TrueB.Fasle

10.听力原文：Theexpression,"lameduck",canbeheardinalmostanyAmericantownorcity,especiallywherepeoplediscusspolitics.Mostoften,theyuseittodescribeapoliticianwhohascometotheendofhispower.

Thereareanumberofideasastowhere"lameduck"camefrom,thoughthepictureofalameduckisclearenough;aduckthathashaditswingscut,oritsfeetinjured,andcannolongerwalklikeahealthyone.

ThetermseemstohavecomeintotheAmericanlanguageaftertheCivilWarof1861-1865.Oneexplanationisthatitcamefromthelanguageofhunterswhofeltthatitwasfoolishtowastepowderortimeonadeadduck.Andalameduckisclosetobeingadeadduck.

Anotherexplanation,however,isthattheexpressioncamefromEngland.Thereitwasusedtodescribeamanwholostallhismoneyandcouldnotpayhisdebts.Hecoulddonothingbutwalklikealameduck.Andpeopleshowedlittlemercyforthepoorfellow.

ButintheUnitedStatespeopletookthephrasetodescribecongressmanwhofailedtogetre-electedbutstillhadalittletimeleftinoffice.

Later,theexpressionwasusedinabroadersense,generallydescribinganymanwhosedaysofpowerwerecomingtoanend.IthasoftenbeenusedtodescribethepositionofanAmericanpresidentinthelasttwoyearsorsoofhissecondterm.Itisadifficulttimeforhim,whenCongressisreadytoopposehimateveryturn.

Wherecantheexpression"lameduck"beheard?

A.Onlyamonghunters.

B.Amongprimaryschoolpupils.

C.Amongbeautifulladies.

D.Amongpeoplewhoarediscussingpolitics.

11.Yourwishtovisitsomefar-offplacescanberealizedbyjustreadingbooks.

A.RightB.Wrong

12.PartB

Directions:Youwillhear3conversationsortalksandyoumustanswerthequestionsbychoosingA,B,CorD.YouwillheartherecordingONLYONCE.

听力原文：M:Now,I'dliketosaythatIthinkthatthisgovernmentproposingtobuildmorenuclearpowerstationsinthiscountryisreallybeingstupid.Thepointaboutnuclearpoweristhatwehaven'tlearnttodoawaywiththewaste.Wehaven'tlearnttocopewiththewastefromityet.

W:Well,Isometimesthinkthat,youknow,they'vegotanimpossiblejob.ImeanalltheimpressionIgetisthatthereisnoalternative...well,that'stheimpressionIget.

M:No,no,noI...Idon'tagreewiththatatall.Thereareplentyofalternatives.There'sthesun...solarpower...thatisasourcethatisalwaysthere,wealwayshaveit.

W:Idon't...Idon'tquiteseewhatyou'regettingatactually,solarpower,what'sthat?

M:Well,theheatfromthesun,itcanbeusedinsolarpanelsonthetopsofhousesforheating,storinguppowertoheatwaterandtoheatthehouses,youknow,somesolarpanelsareinoperationalreadyandtheyaresavingmoney...

W:That'sagoodpointactually,butisitreallyviable,that,ImeanbecauseI'd...

M:SorryitmustbejAndtheonegreatadvantageisthatIcansee,ifthegovernmentsetupsmallunitstobuildsolarpanelsandtoinstallthem,itwouldbecreatingemploymentwhichwouldimprovetheunemploymentsituationandbringterrificadvantages.

W:IhaveheardthatinEngland,Imean,there'snotenoughsun,isthere?For,Imean,solarpanelshere?

M:Yes,well,that'snotquitetrue.I...thereisquiteabitofsun...youmaynotfeeltheactualheatofitonsomeoccasions.

W:No,youarerightthere!

M:Butthelightpowerfromthesunwill.

Whatdoesthemanthinkofthegovernment'spresentproposalaboutbuildingmorepowerstationsinthecountry?

A.It'sadangerousproposal.

B.It'sastupidproposal.

C.It'sanadvantageousproposal.

D.It'saviableproposal.

13.MDhassixdepartmentalmanagersatthemoment.

A.TrueB.Fasle

14.听力原文：M：DidyouhearabouttheaircrashthatoccurredinSouthAmericarecently?Itwasquiteatragicaccident!

W：No,Ididn'tseeanythinginthenewsaboutit．Whathappened?

M：AforeignairlinerwasattemptingtolandatnightinamountainousareainArgentinaandflewintoahill!

W：Thatsoundsreallyterrible!Didanyonesurvive?

M：No，everyoneaboard，includingthecrew，waskilledinstantly．

W：Whatwerethecircumstances?Weretheybadweather,afire,orenginefailure?

M：Apparently，thereweresomelowcloudsinthearea，butmostlyitwasjustmiscommunicationbetweenthepilotsandtheairtrafficcontrollers．

W：Weren'ttheybothspeakinginEnglish，theofficialinternationalaviationlanguage?

M：Yestheywere，butthetransitionfrompoorqualityradioswasslightlydistortedandtheaccentsoftheSpanishspeakingcontrollerswassostrongthatthepilotsmisunderstoodavitalinstruction．

W：Howcouldamisunderstandinglikethatcausesuchaseriousaccident?

M：Thepilotsweretoldtodescendto22,000feet．Theinstructionactuallymeant22,000feet，buttheythoughttheyhearddescend2,000feet．That'sahugedifference．anditshouldhavebeenconfirmed．butitwasnot．Unfortunately，theterrainofthemountainsinNorweijaascendto2,000feet．

W：Sothepilotsdiddescendtothewrongaltitudethen，becausetheywerefollowingtheaircontroller'sinstructions．

M：Sadlyenough，yestheydid．Itwasareallybadmistake．Manypeoplediedasaresultofthesimplymisunderstanding．

W：Wow，that'sapowerfullessononhowimportantitcanbetoaccuratelycommunicatewitheachother．

Whatwasthecauseofthetragedy?

A.Badweather.

B.Humanerror.

C.Breakdownoftheengines.

D.Communicationssystemfailure.

15.What'sthenumberofstudentsfromMalaysia?

二、2.UseofEnglish(10题)16.

【C2】

17.

【C11】

18.(38)

19.

【C9】

20.(47)

21.

【C14】

22.(32)

23.

【C10】

24.

【C12】

25.(48)

三、3.ReadingComprehension(15题)26.(79)

27.

Whichofthefollowingstatementsistrueaboutinsuranceproducts?

A.Peoplehavenochoicewhenbuyinginsuranceproducts.

B.Thereweresomanychoicesininsuranceproductsinthepastthatpeoplefounditdifficulttomakeadecision.

C.Therearenobetterandcheaperinsuranceproducts.

D.Itisbetterforpeopletohavesomanyinsuranceproductstochoose.

28.(75)

29.Itwaslateintheafternoon,andIwasputtingthefinaltouchonapieceofwritingthatIwasfeelingprettygoodabout.Iwantedtosaveit,butmycursorhadfrozen.Itriedtoshutthecomputerdown,anditseizedupaltogether.Unsureofwhatelsetodo,Iyanked(用力猛拉)thebatteryout.

Unfortunately,Windowshadbeeninthemidstofadelicateandcrucialundertaking.Thenextmorning,whenIturnedmycomputerbackon,itinformedmethatafilehadbeencorruptedandWindowswouldnotload.Then,itofferedtorepairitselfbyusingtheWindowsSetupCD.

IopenedthespecialdrawerwhereIkeepCDs,butnoWindowsCDinthere.Iwasforcedtocallthecomputercompany'sGlobalSupportCentre.Mycallwasansweredbyawomaninsomeunnamed,far-offland.IfinditannoyingtomakesmalltalkwithsomeonewhenIdon'tknowwhatcontinentthey'restandingon.SupposeIweretocommentonthebeautifulweatherwe'vebeenhavingwhentherewasamonsoonattheotherendofdiephone?SoIgotrighttothepoint

"Mycomputeristellingmeafileiscorruptedanditwantstofixitself,butIdon'thavetheWindowsSetupCD."

"Soyou'rehavingaproblemwithyourWindowsSetupCD."Shehasapparentlybeendozingand,havingcometojustasthesentenceended,wasattemptingtocoverforherinattention.

Itquicklybecameclearthatthewomanwasnotacomputertechnician.Herjobwastoserveasagatekeeper,ahumanshieldforthetechnicians.Hersoleduty,asfarasIcouldtell,wastoraiseglobalstresslevels.

Tomakemedisappear,thewomangavemethephonenumberforWindows'creator,Microsoft.Thisislikegivingsomeonethephonenumberfor,Idon'tknow,NorthAmerica.Besides,theCDworked;Ijustdidn'thaveit.NomatterhowmanytimesIrepeatedmystory,wecamebacktothesameplace.Shewascalmandresolutelypolite.

Whenmyvoicehitacertaindecibel(分贝),Iwaspassedalong,likeahot,irritablepotato,toatechnician.

"Youdon'thavetheWindowsSetupCD,ma'am,becauseyoudon'tneedit,"heexplainedcheerfully.

"Windowscamepreinstalledonyourcomputer!"

"ButIdoneedit

"Yes,butyoudon'thaveit."Wewentonlikethisforawhile.Finally,heofferedtowalkmethroughtheuseofadifferentCD,onethatwoulderasemyentiresystem."Ofcourse,you'dloseallyoure-mail,yourdocuments,yourphotos."Itwaslikeofferingtodropasafeonmyheadtocuremyheadache."Youmightbeabletorecoverthem,butitwouldbeexpensive."Hesoundeddelighted."Andit'snotcoveredbythewarranty(产品保证书)!"Thesafebegantoseemlikeagoodidea,provideditwasfull.

Ihungupthephoneanddrovemycomputertoasmall,friendlyrepairplaceI'dheardabout.Asmart,helpfulmandugoutaWindowsCDandtoldmeitwouldn'tbeaproblem.Anhourlater,hecalledtoletmeknowitwasready.Ithankedhim,andwechattedabouttheweather,whichwasthesameoutsidemywindowasitwasoutsidehis.

Whydidtheauthorshutdownhercomputerabruptly?

A.Shehadsavedwhatshehadwritten.

B.Shecouldn'tmovethecursor.

C.Thecomputerrefusedtowork.

D.Thecomputerofferedtorepairitself.

30.PartB

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

Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66～70,choosethemostsuitableparagraphfromthelistA～Ftofitintoeachofthenumberedgaps.Thereisoneparagraphwhichdoesnotfitinanyofthegaps.MarkyouranswersonANSWERSHEET1.

Itwasamomentmostbusinessexecutiveswouldpausetosavor:latelastyear,GermansportinggoodspioneerAdidaslearnedthatafteryearsofdecliningmarketshare,thecompanyhadsprintedpastU.S.ReebokInternationaltotakethesecondplacebehindNikeintheraceforworldwidesales.ButRobertLouis-Dreyfus,therumpledFrenchmanwhonowrunsAdidas,anddidn'tevenstopforoneofhistrademarkHavanacigarsincelebration,worriedthatthecompanywouldgrowcomplacent.Instead,heandagroupoffriendsboughtFrenchsoccerclubOlympicdeMarseille"Nowthat'ssomethingIhavedreamedaboutsinceIwasakid."Louis-Dreyfussayswithanadolescentgrin.

66.______

Withsalesinthefirstthreequartersof1996at$2.5billion,upablithering30.7%over1995,it'shardtorecallthedismalshapeAdidaswasinwhenLouis-DreyfustookoveraschairmaninApril1993.Foundedin1920byAdiDassler,theinventorofthefirstshoesdesignedespeciallyforsports,thecompanyenjoyedanearmonopolyinathleticshoesuntilanupstartcalledNikeappearedinthe1970sandrodetherunningfadtoriches.Bytheearly1990sAdidashadcomeunderthecontrolofFrenchbusinessmanBernardTapie,whowaslaterjailedforbribingthreeFrenchsoccerplayers.AlthoughthecompanytriedtospruceupitsstaidimagewithateamofAmericandesigners,Adidaslostmorethan$100millionin1992,promptingtheFrenchbanksthathadacquiredcontrolofthecompanyfromTapietobeginadesperatesearchforanewowner.

67.______

Thepoker-lovingLouis-Dreyfusknewhehadbeendealtawinninghand.FollowingtheleadsetbyNikeinthe1970s,hemovedproductiontolow-wagefactoriesinChina,IndonesiaandThailandandsoldAdidas'EuropeanfactoriesforatokenoneDeutschemarkapiece.HehiredPeterMoore,aformerproductdesigneratNike,ascreativedirector,andsetupstudiosinGermanyfortheEuropeanmarketandinPortland,Oregon,fortheU.S.Hethenriskedeverythingbydoublinghisadvertisingbudget."Wewentfromamanufacturingcompanytoamarketingcompany,"saysLouis-Dreyfus."Itdidn'ttakeagenius--youjusthadtolookatwhatNikeandReebokweredoing.Itwaseasierforsomeonecomingfromtheoutside,withnobaggage,todoit,thanforsomebodyfrominsidethecompany."

68.______

"ThemarketingatAdidasisvery,verygoodrightnow,"saysEugenioDiMaria,editorofSportingGoodIntelligence,anindustrynewsletterperceivingAdidasasaveryyoungbrand."Thecompanyisparticularlystronginapparel,muchstrongerthanNikeandReebok."

Although90%ofAdidasproductsforwearonstreetinsteadofsportsfields,Louis-DreyfusfeltthepreviousmanagementhadlostsightofAdidas'rootsasasportingproductscompany.Afterall,AdiDasslerinventedthescrew-instudforthesoccershoeandshodAmericanchampionJesseOwensinthe1936Olympics.Sohesoldofforfoldedothernon-corebrandsthatAdidashaddeveloped,includingLeCoqSportif,ArenaandPony.Europeisstillthecompany'slargestmarketbecauseAdidasdominatestheapparelindustryandthankstosoccer'smassivepopularitythere,Louis-Dreyfttsisquicktosharecreditfortheturnaroundwithasmallgroupoffriendswhoboughtthecompanywithhimin1993.Oneofthosefellowinvestorsisaform

31.(74)

32.

Intheirstudy,researchersledbyPierreMaquettookadvantageofthetechniqueof______.

A.exposingalong-heldfolkwisdom

B.clarifyingthepredictionsondreams

C.makingcontrastsandcomparisons

D.correlatingeffectswiththeircauses

33.(70)

34.PartB

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

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,Startsays,10,000Americanhemophiliacsand12,000otherscontractedHIVfromtransfusionsandreceiptofbloodproducts.Bloodbanksbothhereandabroadmovedslowlytoacknowledgethethreatofthevirusandinsomecasesevenactedwithcriminalnegligence,allowingthedistributionofbloodtheyknewwastainted.Thisisnotnewmaterial.ButStarr'sinsightsaddadimensiontoastoryfirstexploredinthelateRandyShilts'sAndtheBondPlayedOn.

69.______

Isthebloodsupplysafenow?Screeningproceduresandtechnologyhavegottenmuchmoreadvanced.Yetit'sdisturbingtoreadStarr'scontentionthatapersonreceivingmultipletransfusionstodayhasaboutalin90,000chanceofcontractingHIV--farhigherthanthe"oneinamillion"figurethatbloodbankersonceblithelyandfalselyquoted.Moreover,newpathogensthreatentoemergeandspreadthroughtheincreasinglyhigh-speed,globalblood-productnetworkfasterthansciencecanstopthem.ThispromptsStarttoarguethattoday'sbloodstoresare"simultaneouslysaferandmorethreatening"thanwhendistributionwaslesssophisticated.

70.______

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

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

C.Inhischronicleofaresource,Startcoversanenormousamountofground.Hegivesusanaccountofmankind'sattitudesovera400-yearperiodtowards

35.

Accordingtothepassage,whichofthefollowingisTRUE?

A.AllAmericansarepersuadednottogetvaccinatedthisyear.

B.Thebigproblemininnovatingfluvaccineproducingtechniqueishowtogrowvirusinanewway.

C.Morefluvaccinescannotbeproducedinashorttimebecauseprivatecompaniesrefusetoproducemore.

D.Fluvaccinesareeasierthanmostvaccinestoproducethroughcellcultures.

36.(69)

37.

HowmanystaleslevyimporttaxesintheU.S.A.?

A.4.B.50.C.46.D.54.

38.

Whichofthefollowingistheauthor'sopinionaboutthewomanattheGlobalSupportCentre?

A.Shesoundedhelpfulandknowledgeable.

B.Shewastheretomakecallersfrustrated.

C.Shewasabletosolvehercomputerproblem.

D.Shewasquicktopassheralongtoatechnician.

39.

Themeaningoftheword"anomaly"inthesecondlineof4thparagraphis______.

A.somethingstrange

B.enjoyablethings

C.anormally

D.comparison

40.

Thearrivaloftheindustrialageinourhistoricalevolutionmeantthat______．

A.universalemploymentvirtuallyguaranteedprosperity

B.economicfreedomcamewithineveryone'scontrol

C.patternsofworkwerefundamentallychanged

D.people'sattitudestoworkhadtobereversed

四、阅读理解(5题)41.

第

39

题

Theword“fib”inthefourthsentenceofParagraph5，probablymeans__________．

42.

根据下列文章回答46～50题：

第

46

题

Thepurposeofinsuranceisto__________．

43.

第

44

题

influencesmostmoviesconcerningthecriminalelementsnowadays?__________

44.

第

38

题

Whyistransitiondifficult?

45.

第

32

题

canpromotetourismdevelopment?__________

参考答案

1.A

2.A

3.B

4.B

5.Anytraveler/Apeddler/Ashoemaker．

6.B

7.Engineering．

8.A

9.B

10.D

11.A

12.B

13.A

14.B

15.over23000/23000．

16.toto解析：talkto的意思是“和某人聊天”，talk这里不及物动词，后面需要接一个介词。在从句中介词不能省略。作者这里要表达的意思是“和那些诚实的平易近人的人聊天是很惬意的。”故答案为to。

17.drinkingdrinking解析：由本句句意“通过将污水和化学物质倒入河流和湖泊，我们已经污染了我们的…水。”显然，此空处应为“饮用”。

18.nono解析：本句话的意思是“那些趾高气扬的人不可能是那些平易近人的人”。这是否定的意思，故答案为no。

19.somesome解析：关键是注意and前后一致。“somerationaland…emotional”，前面说促使顾客购买的动机有很多，有的是理性的，有的却是冲动。所以这里应该是some。故答案为some。

20.bringbring解析：通过前一句话“suchadreamercanbebroughtbacktoearth．”中的brought可以知道，这里应该填bring，表示“把…带到”。故答案为bring。

21.ratherrather解析：此空所在句意为“用四个手指握笔而不是三个。”ratherthan表示“而不是”。

22.acrossacross解析：getacross意为“使(观点等)被理解或接受，讲清自己的意思”，此句意为“给他们讲清巨大的成功不会轻易、快速地到来很重要。”

23.byby解析：由日本政府收集的数据。考查被动语态的用法，“由…”用介词“by”。所以此处应填“by”。

24.awareaware解析：beawareof，固定搭配，意为“意识到”。所以此处应填“aware”。

25.olderolder解析：grow只能是年