2021年宁夏回族自治区银川市公共英语五级(笔试)测试卷(含答案)

2021年宁夏回族自治区银川市公共英语五级(笔试)测试卷(含答案)学校:________班级:________姓名:________考号:________

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

A.theTowerofLondon

B.Harrods

C.BuckinghamPalace

D.TheGreenwichvillage

2.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.

3.WhatwerethetwothingsthatinterestedDr.Huber?

4.What'sthepercentageofstudentsinbusinessandmanagement?

5.Waterisasimportantasvitamins,mineralsandproteinsforlife.

A.TrueB.Fasle

6.Whenwillthespeakertalkabouttheeconomicandpoliticalchanges?

7.Ourhumanfriendssometimesmaymakeusbored,butthefriendsinbooksmayalsobehurtbyus.

A.TrueB.Fasle

8.Whatdoes"itisasplainasthenoseonyourface"mean?,

A.Itiseasytosolve.

B.Somethinglookslikeyournose.

C.Itissomethingquiteunderstandable.

D.Thereisaplain-lookingnoseonyourface.

9.WhatdoesthespeakersayaboutLowTillFanning?

A.It'sanewwayofapplyingchemicalfertilizer.

B.It'sanimprovedmethodofharvestingcrops.

C.It'sacreativetechniqueforsavinglabor.

D.It'safanningprocesslimitingtheuseofplows.

10.The"feltimage"letsyourecognizeyourphysicalexistenceintheworld.

A.RightB.Wrong

11.Meatsalsocontainwater.

A.RightB.Wrong

12.What'soneofthebestwaystohelpyouraudience?

13.Howmuchtimedothemanandthewomanhavebeforetheyaddresstheclass?

A.Lessthantenminutes.

B.Abouttwentyminutes.

C.Forty-fiveminutes.

D.Overanhour.

14.Withonlyagoodbookweareverylikelytofeellonely.

A.TrueB.Fasle

15.Inwhatpartoftheworldispotatoespeciallyafavoritefood?

二、2.UseofEnglish(10题)16.

【C11】

17.(46)

18.(45)

19.

【C18】

20.

【C3】

21.

【C2】

22.(35)

23.(36)

24.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)

25.(41)

三、3.ReadingComprehension(15题)26.

Whichofthefollowingstatementsistrueaboutinsuranceproducts?

A.Peoplehavenochoicewhenbuyinginsuranceproducts.

B.Thereweresomanychoicesininsuranceproductsinthepastthatpeoplefounditdifficulttomakeadecision.

C.Therearenobetterandcheaperinsuranceproducts.

D.Itisbetterforpeopletohavesomanyinsuranceproductstochoose.

27.(68)

28.ThehistoryofresponsestotheworkoftheartistSandroBotticelli(1444—1510)suggeststhatwidespreadappreciationbycriticsisarelativelyrecentphenomenon.Writingin1550,VasariexpressedanuneasewithBotticelli'swork,admittingthattheartistfittedawkwardlyintohisevolutionaryschemeofthehistoryofart.Overthenexttwocenturies,academicarthistoriansdefamedBotticelliinfavorofhisfellowsFlorentine,Michelangelo.Evenwhenanti-academicarthistoriansoftheearlynineteenthcenturyrejectedmanyofthestandardsofevaluationadoptedbytheirpredecessors,Botticelli'sworkremainedoutsideofacceptedtaste,pleasingneitheramateurobserversnorconnoisseurs.(Manyofhisbestpaintings,however,remainedhiddenawayinobscurechurchesandprivatehomes.)

TheprimaryreasonforBotticelli'sunpopularityisnotdifficulttounderstand:mostobservers,upuntilthemid-nineteenthcentury,didnotconsiderhimtobenoteworthy,becausehiswork,forthemostpart,didnotseemtotheseobserverstoexhibitthetraditionalcharacteristicsofthefifteenth-centuryFlorentineart.Forexample,Botticellirarelyemployedthetechniqueofstrictperspectiveand,unlikeMichelangelo,neverusedchiaroscuro.

AnotherreasonforBotticelli'sunpopularitymayhavebeenthathisattitudetowardthestyle.ofclassicalartwasverydifferentfromthatofhiscontemporaries.Althoughhewasthoroughlyexposedtoclassicalart,heshowedlittleinterestinborrowingfrom,theclassicalstyle.Indeed,itisparadoxicalthatapainteroflarge-scaleclassicalsubjectsadoptedastyle.thatwas.onlyslightlysimilartothatofclassicalart.

Inanycase,whenviewersbegantoexaminemorecloselytherelationshipofBotticelli'sworktothetraditionofthefifteenthcenturyHorentineart,hisreputationbegantogrow.AnalysesandassessmentsofBotticellimadebetween1850and1870bytheartistsofthePre-Raphaelitemovement,aswellasbythewriterPater(althoughhe,unfortunately,basedhisassessmentonanincorrectanalysisofBotticelli'spersonality),inspiredanewappreciationofBotticellithroughouttheEnglish-speakingworld.YetBotticelli'swork,especiallytheSistinefrescoes,didnotgenerateworldwideattentionuntilitwasfinallysubjectedtoacomprehensiveandscrupulousanalysisbyHomein1908.Homerightlydemonstratedthatthefrescoessharedimportantfeatureswithpaintingsbyotherfifteenth-centuryFlorentines—featuressuchasskillfulrepresentationofanatomicalproportions,andofthehumanfigureinmotion.However,Homearguedthat.Botticellididnottreatthesequalitiesasendsinthemselves—rather,thatheemphasizedcleardepletionofastory,auniqueachievementandonethatmadethetraditionalFlorentinequalitieslesscentral.

BecauseofHome'semphasiscrucialtoanystudyofart,thetwentiethcenturyhascometoappreciateBotticelli'sa-chievements.

Whichofthefollowingwouldbethebesttitleforthetext?

A.TheRoleofStandardArtAnalysesandAppraisals

B.SandroBotticelli:FromRejectiontoAppreciation

C.TheHistoryofCritics'ResponsestoArtWorks

D.BotticelliandFlorentine:AComparativeStudy

29.

Accordingtothepassage,whichofthefollowingisTRUE?

A.AllAmericansarepersuadednottogetvaccinatedthisyear.

B.Thebigproblemininnovatingfluvaccineproducingtechniqueishowtogrowvirusinanewway.

C.Morefluvaccinescannotbeproducedinashorttimebecauseprivatecompaniesrefusetoproducemore.

D.Fluvaccinesareeasierthanmostvaccinestoproducethroughcellcultures.

30.

Accordingtothispassage,whatisthemostexpensiveresourceinacorporation?

A.Product.

B.Humanresource.

C.Rawmaterials.

D.Clientsofthecorporation.

31.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

32.

Whichofthefollowingmightbetheresultfromtheuseofefficienttechnologyincorporations?

A.Thequantityofproductswillbeconsiderablyincreased.

B.Thecostofcomputerswillbedecreased.

C.Theperdocumentcostofinformationprocessingwillbereduced.

D.Thenewestinformationwillbeeasiertoobtain.

33.(75)

34.(74)

35.(73)

36.

Whycouldnotceramicsbeusedwidelyinthepast?

A.Becauseoftheirbrittleness.

B.Becausepeopledidn'tknowhowtousethem.

C.Becausetheywerenotuseful.

D.Becausetheycouldnotresistheat.

37.PartC

Directions:Answerquestions71-80byreferringtothefollowinggames.

Note:AnswereachquestionbychoosingA,BorCandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.

Note:AnswereachquestionbychoosingA,B,CorDandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.

A=BOOKREVIEW1B=BOOKREVIEW2

C=BOOKREVIEWS3D=BOOKREVIEW4

Whichbookreview(s)contain(s)thefollowinginformation?

Comparisonofthesignificanceoftwoeconomicbooks.71.______

Stiglitz'sprestigeinthefieldofeconomics.72.______

Stiglitz'scriticismofthosewhoexaggeratedthepowerofmarketsindevelopingcountries.73.______

Policymakingshouldconsiderlocalconditions.74.______

Theinterventionofgovernmentisthewaytoassistglobalization.75.______

Stiglitz'sdedicationtothedevelopmentofpoorcountries.76.______

Stiglitz'spreferenceofonetypeofeconomicpolicyoveranotherone.77.______

MorepeoplejoinedStiglitzincriticizingfreetradeandglobalization.78.______

Stiglitz'spointshavebeensupportedbywhatactuallyhappenedinthecountry.79.______

MainlygivespositivecommentsonStiglitzandhisnewbook.80.______

A

Themainpointofthebookissimple:globalizationisnothelpingmanypoorcountries.Incomesarenotrisinginmuchoftheworld,andadoptionofmarket-basedpoliciessuchasopencapitalmarkets,freetrade,andprivatizationaremakingdevelopingeconomieslessstable,notmore.Insteadofabiggerdoseoffreemarkets,Stiglitzargues,what'sneededtomakeglobalizationworkbetterismoreandsmartergovernmentintervention.Whilethishasbeensaidbefore,theideascarrymoreweightcomingfromsomeonewithStiglitz'scredentials.Insomeways,thisbookhasthepotentialtobetheliberalequivalentofMiltonFriedman's1962classicCapitalismandFreedom,whichhelpedprovidetheintellectualfoundationforagenerationofconservatives.ButGlobalizationandItsDiscontentsdoesnotrisetothelevelofcapitalismandfreedom.WhileStiglitzmakesastrongcaseforgovernment-orienteddevelopmentpolicy,heignoressomekeyargumentsinfavorofthemarket."Thebook'smainvillainistheInternationalMonetaryFund,theWashingtonorganizationthatlendstotroubledcountries",Stiglitz'contemptfortheIMFisboundless,"ItisclearthattheIMFhasfailedinitsmission,"hedeclares."ManyofthepoliciesthattheIMFpushedhavecontributedtoglobalinstability."

B

Whilepartsofthisbookaredisappointinglyshallow,Stiglitz'scritiqueofthemarket-driven90'sstillresonates,especiallywhenthebusinesspageisfullofstoriesaboutwhite-collarcrimeandthestockmarketseemsstuckinaperpetualrut.EventheUnitedStatescannotblithelyassumethatfinancialmarketswillworkonautopilot.ItistestamenttothesalienceofStiglitz'sargumentsthatmanyeconomists—evensomeBushAdministrationofficials—nowembracehisviewthateconomicchangeinthedevelopingworldmustevolvemorewithlocalconditions,notonWashington'scalendar.Withoutathoroughmakeover,globalizationcouldeasilybecomeaquagmire.StiglitzsharedaNobelPrizelastyearforhisworkanalyzingtheimperfectionsofmarkets.Hismaincomplainta-gainstRubinandSummers,whoservedasTreasurySecretaries,andagainstFischer,theNO.2officialanddefactochiefexecutiveoftheinternationalMonetaryFund,isthattheyhadtoomuchfaiththatmarketscouldtransform.poorcountriesovernight.Helabelsthesethreemenmarketfundamentalists,whofoughttomaintainfinancialsta

38.(80)

39.At18,AshanthiDeSilvaofsuburbanClevelandisalivingsymbolofoneofthegreatintellectualachievementsofthe20thcentury.Bornwithanextremelyrareandusuallyfataldisorderthatleftherwithoutafunctioningimmunesystem(the"bubble-boydisease",namedafteranearliervictimwhowaskeptaliveforyearsinasterileplastictent),shewastreatedbeginningin1990witharevolutionarynewtherapythatsoughttocorrectthedefectatitsverysource,inthegenesofherwhitebloodcells.Itworked.Althoughherlastgene-therapytreatmentwasin1992,sheiscompletelyhealthywithnormalimmunefunction,accordingtooneofthedoctorswhotreatedher,W.FrenchAndersonoftheUniversityofSouthernCalifornia.Researchershavelongdreamedoftreatingdiseasesfromhemophiliatocancerbyreplacingmutantgeneswithnormalones.Andthedreamingmaycontinuefordecadesmore."Therewillbeagene-basedtreatmentforessentiallyeverydisease,"Andersonsays,"within50years."

It'snotentirelyclearwhymedicinehasbeensoslowtobuildonAnderson'searlysuccess.TheNationalInstitutesofHealthbudgetofficeestimatesitwillspend$432millionongene-therapyresearchin2005,andthereisnoshortageofpromisingleads.Thetherapeuticgenesareusuallydeliveredthroughvirusesthatdon'tcausehumandisease."ThevirusissortoflikeaTrojanhorse,"saysRonaldCrystalofNewYorkPresbyterian/WeillCornellMedicalCollege."Thecargoisthegene."

AttheUniversityofPennsylvania'sAbramsohCancerCenter,immunologistCarlJunerecentlytreatedHIVpatientswithageneintendedtohelptheircellsresisttheinfection.AtCornellUniversity,researchersarepursuinggene-basedtherapiesforParkinson'sdiseaseandararehereditarydisorderthatdestroyschildren'sbraincells.AtStanfordUniversityandtheChildren'sHospitalofPhiladelphia,researchersaretryingtofigureouthowtohelppatientswithhemophiliawhotodaymustinjectthemselveswithexpensiveclottingdrugsforlife.Animalexperimentshaveshowngreatpromise.

Butsomehow,thingsgetlostinthetranslationfromlaboratorytopatient.Inhumantrialsofthehemophiliatreatment,patientsshowaresponseatfirst,butitfadesovertime.Andthefieldhasstillnotrecoveredfromthesetbackitsufferedin1999,whenJesseGelsinger,an18-year-oldwithararemetabolicdisorder,diedafterreceivinganexperimentalgenetherapyattheUniversityofPennsylvania.Someexpertsworrythatthefieldwillbetarnishedfurtherifthenextpeopletobenefitarenotpatientsbutathletesseekinganedge.Thissummer,researchersattheSalkInstituteinSanDiegosaidtheyhadcreateda"marathonmouse"byimplantingagenethatenhancesrunningability;already,officialsattheWorldAnti-DopingAgencyarepreparingtotestathletesforsignsof"genedoping".Buttheprincipleisthesame,whetheryou'retryingtohelpahealthyrunnerrunfasterorallowamuscular-dystrophypatienttowalk."Everybodyrecognizesthatgenetherapyisaverygoodidea,"saysCrystal."Andeventuallyit'sgoingtowork."

ThecaseofAshanthiDesilvaismentionedinthetextto______.

A.showthepromiseofgene-therapy

B.giveanexampleofmoderntreatmentforfataldiseases

C.introducetheachievementofAndersonandhisteam

D.explainhowgene-basedtreatmentworks

40.

Whichofthefollowingistrueaccordingtothetext?

A.TheHartspreferapublicuniversitytoaprivateone.

B.Itismucheasiertopaythetuitionatpresent.

C.Allstudentscangettheaidpackage.

D.Traditionalscholarshipsarestillattractivetosomefamilies.

四、阅读理解(5题)41.

根据下列文章回答41～45题：

第

41

题

Accordingtotheauthor，whichofthefollowingresultedfromthepassageorrevivalofstatelawslimitingtheworkhoursofwomenworkers?

42.

第

38

题

Theelectriccatfishhasadifferentelectricsysteminthat__________．

43.

第

38

题

WhatCanbeconcludedaccordingtotheauthor’sviewofthe“obesitygenes”?

44.

第

24

题

coversabuildingspaceof90thousandsquaremeters?__________

45.

第

42

题

Accordingtothefirstparagraphofthepassage，theauthorconsiderswhichofthefollowingtobemosthelpfulindeterminingthevalueofspecialprotectivelaborlegislationforwomen?

参考答案

1.C

2.D

3.Physicsandmusic

4.18.9%/18.9percent．

5.B

6.(at)(the)Nextmeeting/(the)followingmeeting．

7.B

8.C

9.D

10.A

11.A

12.Tospeakslowly

13.B

14.B

15.NorthernEurope/NorthAmerica

16.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”。

17.displaydisplay解析：这里要回应本段第一句话中的“displayed”。在出口结算处展示的这些小商品无疑是一种诱惑。这里需要用名词形式。故答案为display。

18.whatwhat解析：此题考查what引导的宾语从句。要注意分析句子中的成分，此空为listento后的宾语。所以此处应填引导词“what”。

19.promisingpromising解析：此句意为“一家大制造公司最近采访了许多…的工程师，这些工程师都已离开这家公司。”由上下句判断，此空处填“有希望的，有前景的”最合句意。

20.betweenbetween解析：“…relation…actionsandtheirconsequences”意为“…行动和它们的结果…关系”，空处显然缺“之间”。

21.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。

22.gogo解析：gotoone’sheads的意思是“展现、表现”，俗语。用在文中表示“把…写在脸上”，生怕别人不知道的显摆。故答案为go。

23.themthem解析：本题考查代词的用法，根据上下文，此处句意为“人们使用这些小玩意儿。”上文已经提到gadgets，所以这里用代词“them”代替。

24.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。

25.areare解析：分析句子结构，这里缺少系动词be来构成动词的被动形式。故答案为are。

26.D解析：由文章最后一段中的“Thepositivesideofitistherearebetterproducts—they'recheaperandmoreflexible．”可知。

27.AA解析：由上下两段可知，只有A放在此处可以使上下文衔