2021-2022年贵州省遵义市公共英语五级(笔试)真题一卷(含答案)

2021-2022年贵州省遵义市公共英语五级(笔试)真题一卷(含答案)学校:________班级:________姓名:________考号:________

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

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

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

Withagoodbookinourhandsweneedneverbelonely．Whetherthecharactersportrayedaretakenfrom．reallifeoraretotallyimaginarytheymaybecomeourcompanionsandfriends．Inthepagesofbookswecanwalkwiththewiseandthegoodofalllandsandalltimes．Thepeoplewemeetinbooksmaydelightuseitherbecausetheyresemblehumanfriendswhomweholddearorbecausetheypresentunfamiliartypeswhomwearegladtowelcomeasnewacquaintances．OurhumanMendsSometimesmayboreus，butthefriendswemakeinbooksneedneverwearyuswiththeircompany．Byturningthepageswecandismissthemwithoutanyfearofhurtingtheirfeelings．Whenhumanfriendsdesertus．goodbooksarealwaysreadytogiveusfriendship，sympathy，andencouragement．

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

Agoodbookmaydrawourattentionsocompletelythatweforgetoursurroundingsandevenouridentityforthetimebeing.

A.RightB.Wrong

2.Goodbookscandecreaseourcontentmentwhenwearehappyandlessenourtroubleswhenwearesad.

A.RightB.Wrong

3.Peoplelikethechangesintheorganizationofthecompany.

A.TrueB.Fasle

4.What/Whoshouldstudentscontactiftheywanttogetasummerjob?

A.TheStudentUnion.

B.TheStudentEmploymentOffice.

C.TheWorkers'Union.

D.TheStudentPart-timeJobOffice.

5.whichisthemostpopularmajorofstudy?

6.WherewasthefinalsoftheWorldCupin1994held?

A.InEngland.B.IntheUSA.C.InMexico.D.InFrance.

7.Meatsalsocontainwater.

A.RightB.Wrong

8.PartA

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

听力原文：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.RightB.Wrong

9.Governmentbuildingsoftenhavespecialpathsforthosepeoplehandicapped.

A.TrueB.Fasle

10.Whatwillthespeakerdiscussfirst?

11.Wecanmakearound-the-worldflighttripfreeofchargeifwefinishreadingenoughbooks.

A.RightB.Wrong

12.Whatsuggestiondoesthemanthinkitisgood?

A.Trytogiveupsmoking.

B.Eatsweetseverydayinsteadofsmoking.

C.Trytogiveuponecigaretteeveryday.

D.Gotoahypnotist.

13.Whichofthefollowingcanbecalledasa"lameduck"?

A.Adisabledlittlechild.

B.Ahard-workingfarmer.

C.Apoliticianwhohastocometotheendofhispower.

D.Anabsent-mindedoldprofessor.

14.Whatwouldhappentoastudentifhisemployerreportshisimproperbehavior?

A.Hewouldbefired.

B.Hewouldnotgethispay.

C.Hewouldnotgetanotherjob.

D.Hewouldbefined.

15.PartB

Directions:Youwillhear3conversationsortalksandyoumustanswerthequestionsbychoosingA,B,CorD.YouwillheartherecordingONLYONCE.

听力原文：W:Jim,thankgoodnessyou'vearrived.Theclasspresentationstartedhalfanhourago,andIwasjustbeginningtopanic.

M:I'msorryforbeinglate,Alice.Thismorninghasbeenarealmess.Ididn'tthinkIwasgoingtomakeithereatall.

W:Whyareyoulate?Ourpresentationdependsonthosegraphsyouareholding.

M:Yes,Iknow.I'lltellyouaboutitlater.First,let'sseehowwearedoingfortime.Twogroupsarestillaheadofus,aren'tthey?Thepresentationsontherightsoftheconsumerandtheanalysisofthestockmarket.ThatmeansI'vegottwentyminutestosortout.

W:Youlookcold.Whathappened?

M:I'vebeenstandingoutsideinarctictemperaturesforoveranhourwaitingforabus.

W:Overanhour?ButIthoughtyourapartmentwasonlyatenminutebusridetocampus.

M:Innormalconditions,butthebuswasdelayedbecauseoftheweather,andwhenIstoppedinadrugstoretocallhomeforaride,thebuswentby.Asluckwouldhaveittherewasnooneathome,soIhadtowaitanotherforty-fiveminutesforthenextbus.

W:That'sMurphy'sLaw,isn'tit?Whatdiditsay?Ifanythingcangowrong,itwill.Well,we'vestillgottwentyminutestogetourwitstogether.

Whatisthewoman'stoneofvoicewhenshefirstseestheman?

A.Frustrated.B.Relieved.C.Sarcastic.D.Apologetic.

二、2.UseofEnglish(10题)16.“Down-to-earth”meanssomeoneorsomethingthatishonest.realisticandeasytodealwith.Itisapleasuretofind【C1】______whoisdown-to-earth.Apersonwhoisdown-to-earthiseasytotalk【C2】______andacceptsotherpeopleasequals.Adown-to-earthpersonisjustthe【C3】______ofsomeonewhoactsimportantorproud.

Down-to-earthpersonsmaybe【C4】______membersofsociety,ofcourse.Buttheydonotlettheirimportance“【C5】______totheirheads”.Theydonotconsiderthemselvestobebetterpersonsthan【C6】______oflessimportance.Someonewhoisfilledwithhisownimportanceandpride,【C7】______withoutcause,issaidtohave“hisnoseintheair”.Thereis【C8】______wayapersonwithhisnoseintheairCanbedown-to-earth.

Americans【C9】______anotherexpressionthatmeansalmostthesameas“down-to-earth”.Theexpressionis“both-feet-on-me-ground”.Someone【C10】______both-feet-on-me-groundisapersonwithagoodunderstanding【C11】______reality.Hehaswhatiscalled“commonsense,”hemayhavedreams,【C12】______hedoesnotallowthemtoblockhisknowledgeof【C13】______isreal.

Theoppositekindof【C14】______isonewhohashis“head-in-the-clouds”.Amanwithhishead-in-the-cloudsisadreamer【C15】______mindisnotintherealworld.

【C16】______,suchadreamercanbebroughtbacktoearth.SharpwordsfromteacherCanusually【C17】______aday-dreamingstudentdown-to-earth.

Usually．thepersonwhoisdown-to-earthisvery【C18】______tohavebothfeetontheground.【C19】______wehavebothourfeetontheground,whenwearedown-to-earth,weacthonestlyandopenly【C20】______others.OurlivesarelikethegroundbelowUS,solidandstrong.

【C1】

17.

【C14】

18.(45)

19.

【C5】

20.(32)

21.

【C10】

22.

【C9】

23.

【C3】

24.

【C19】

25.(40)

三、3.ReadingComprehension(15题)26.

Themeaningoftheword"anomaly"inthesecondlineof4thparagraphis______.

A.somethingstrange

B.enjoyablethings

C.anormally

D.comparison

27.

______iscircularinthenorthernpartwhilesquareinthesouthernpart?

28.(78)

29.PartA

Directions:ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.

Whenitcomestotheslowingeconomy,EllenSperoisn'tbitinghernailsjustyet.Butthe47-year-oldmanicuristisn'tcutting,fillingorpolishingasmanynailsasshe'dliketo,either.Mostofherclientsspend$12to$50weekly,butlastmonthtwolongtimecustomerssuddenlystoppedshowingup.Speroblamesthesofteningeconomy."I'magoodeconomicindicator,"shesays,"Iprovideaservicethatpeoplecandowithoutwhenthey'reconcernedaboutsavingsomedollars."SoSperoisdownscaling,shoppingatmiddle-browDillard'sdepartmentstorenearhersuburbanClevelandhome,insteadofNeimanMarcus."Idon'tknowifotherclientsaregoingtoabandonme,too."shesays.

EvenbeforeAlanGreenspan'sadmissionthatAmerica'sred-hoteconomyiscooling,lotsofworkingfolkshadalreadyseensignsoftheslowdownthemselves.Fromcardealershipstogapoutlets,saleshavebeenlaggingformonthsasshopperstempertheirspending.Forretailers,wholastyeartookin24percentoftheirrevenuebetweenThanksgivingandChristmas,thecautiousapproachiscomingatacrucialtime.Already,expertssay,holidaysalesareoff7percentfromlastyear'space.Butdon'tsoundanyalarmsjustyet.Consumersseemonlyconcerned,notpanicked,andmanysaytheyremainoptimisticabouttheeconomy'slong-termprospects,evenastheydosomemodestbelt-tightening.

Consumerssaythey'renotindespairbecause,despitethedreadfulheadlines,theirownfortunesstillfeelprettygood.InManhattan,"there'sanewgoldrushhappeninginthe$4millionto$10millionrange,predominantlyfedbyWallStreetbonuses,"saysbrokerBarbaraCorcoran.InSanFrancisco,pricesarestillrisingevenasfrenziedoverbiddingquiets."Insteadof20to30offers,nowmaybeyouonlygettwoorthree,"saysJohnDeadly,aBayAreareal-estatebroker.Andmostfolksstillfeelprettycomfortableabouttheirabilitytofindandkeepajob.

Manyfolksseesilverliningstothisslowdown.Potentialhomebuyerswouldcheerforlowerinterestrates.Employerswouldn'tmindalittlefewerbubblesinthejobmarket.Manyconsumersseemtohavebeeninfluencedbystock-marketswings,whichinvestorsnowviewasanecessaryingredienttoasustainedboom.Dinersmightseeanupside,too.GettingatableatManhattan'shotnewAlainDucasserestaurantneedtobeimpossible.Notanymore.Forthat,Greenspan&Co.maystillbeworthtoasting.

By"EllenSperoisn'tbitinghernailsjustyet"(Line1,Paragraph1),theauthormeans______.

A.Sperocanhardlymaintainherbusiness

B.Speroistoomuchengagedinherwork

C.Sperohasgrownoutofherbadhabit

D.Speroisnotinadesperatesituation

30.

Accordingtothepassage,whichofthefollowingisnottrue?

A.SomeAmericanswouldnotacceptthevalueofconservationandenvironmentprotection,becausethisvaluewouldprobablymakethemunemployed.

B.ManyAmericanshavebeenusedtowasting,soitwillbedifficultforthemtoacceptthenewvalueofconservation.

C.SomeoldvaluesarestillhavingaverystronginfluenceonAmericanpeople,althoughtheyareharmfulinthisnewage.

D.MostAmericanshavefullyrealized,theneedtoprotecttheenvironment,sotheyhavetakenmeasurestorecyclejunkedgoods.

31.

Theword"tarnish"(line4,paragraph4)mostprobablymeans______.

A.affectB.warnC.troubleD.stain

32.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.

Asalestaxisatanleviedonpurchases.MostpeoplelivingindieUnitedStatesknowaboutsalestaxessincetheyareusedinallbutfourstates.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

33.(72)

34.PartA

Directions:ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.

TheStoneage,theIronage.Entireepochshavebeennamedformaterials.Sowhattonamethedecadesahead?Thechoicewillbetough.Welcometotheageofsuperstuff.Materialscience—oncetheleastsexytechnology—isburstingwithnew,practicaldiscoveriesledbysuperconductingceramicsthatmayrevolutionizeelectronics.Butsuperconductorsarejustpartofthepicture;fromhousesandcarstocookpotsandartificialteeth,theworldwillsometimebemadeofdifferentstuff.Exoticplastics,glassandceramicswillshapethefuturejustassurelyashavegeneticengineeringandcomputerscience.

Thekeytothenewmaterialsisresearchers'increasingabilitytomanipulatesubstancesatthemolecularlevel.Ceramics,forinstance,havelongbeenlimitedbytheirbrittleness.Butbyminimizingthemicroscopicimperfectionsthatcauseit,scientistsaremakingfarstrongerceramicsthatstillretainsuchqualitiesashardnessandheatresistance.FordMotorCo.nowusesceramictoolstocutsteel.AfirmcalledKyocerahascreatedalineofceramicscissorsandknivesthatstaysharpforyearsandneverrustorcorrode.

Asimilartransformationhasovertakenplastics.High-strengthpolymersnowform.bridges,iceskatingrinksandhelicopterrotors.Andonenewplasticthatgenerateselectricitywhenvibratedorpushedisusedinelectricguitars,touchsensorsforrobothandsandkaratejacketsthatautomaticallyrecordeachpunchandchop.Evenplasticlitter,whichoncethreatenedtopermanentlyblotthelandscape,hasprovedamenabletomoleculartinkering.Severalmanufacturersnowmakebiodegradableforms;someplasticsix-packringsforexample,graduallydecomposewhenexposedtosunlight.Researchersaredevelopingwaystomakeplasticsasrecyclableasmetalorglass.What'smore,composites—plasticreinforcedwithfibresofgraphiteorothercompounds—madetheround-the-worldflightofthevoyagerpossibleandhaveevenbeenprovedincombat:ahelmetsavedaninfantryman'slifebydeflectingtwobulletsintheGrenadainvasion.

Someadvancedmaterialsareoldstandardwithanewtwist.Thenewestfiberopticcablesthatcarrytelephonecallscross-countryaremadeofglasssotransparentthatapieceof100milesthickisclearerthanastandardwindowpane.

Butnewmaterialshavenoimpactuntiltheyaremadeintoproducts.Andthattransitioncouldprovedifficult,forswitchingrequireslengthyresearchandinvestment.Itcanbesaidafirmerhandleonhowtomovetocommercializationwilldeterminethesuccessorfailureofacountryinthecomingfuture.

Howmanynewmaterialsarementionedinthispassage?

A.Two.B.Three.C.Four.D.Five.

35.

Whatadvantagewilltherebeifonebuyslifeinsuranceinsteadofmakingotherinvestments?

A.Hewillhavemoneyforaretirementhome.

B.Itwillcosthimnothingifhebuysanlifeinsurance.

C.Profitheearnsfrominsuranceistax-free.

D.Itischeaptobuyalifeinsurance.

36.

Theauthorimpliesthatwhichofthefollowingischaracteristicofmanyemployeehealthinsuranceplans?

A.Theycoverallthecommonmedicalconditionsaffectingmen,butonlysomeofthoseaffectingwomen.

B.Theylackthespecialprovisionsforwomenworkersthatproposedspeciallaborlawsforwomenwouldprovide.

C.Theypaythemedicalcostsassociatedwithpregnancyandchildbirthonlyforthespousesofmaleemployees,notforfemaleemployees.

D.Theymeetminimumlegalrequirements,,butdonotadequatelysafeguardthehealthofeithermaleorfemaleemployees.

37.

AccordingtoJackMaple,tocutcrime______.

A.theheadsofpolicedepartmentshouldmakemorecontactwiththecriminals

B.thegovernmentshouldeducatetheresidentsmore

C.acomputersystemcalledComstatshouldbeadoptedbythepolice

D.thecriminalsshouldbeseverelypunished

38.

Accordingtothepassage,speciallaborlawsprotectingwomenworkerstendgenerallytohavewhichofthefollowingeffects?

A.Theytendtomodifythestereotypesemployeesoftenholdconcerningwomen.

B.Theyincreasetheadvantagetoemployersofhiringmeninsteadofwomen,makingitlesslikelythatwomenwillbehired.

C.Theydecreasethelikelihoodthatemployerswilloffermoreprotectiontowomenworkersthanthatwhichisabsolutelyrequiredbylaw.

D.Theyincreasethetendencyofemployerstodenyhealthinsuranceanddisabilityplanstowomenworkers.

39.(68)

40.(73)

四、阅读理解(5题)41.

第

40

题

Thelanguageofthepassageismostly__________．

42.

第

42

题

offersapoorviewevenwhenthemirrorsareused?_________

43.

第

35

题

WhatdoestheauthorthinkofBotticelli’srepresentationskills?

44.

第

39

题

Thephrase“vocal…exponent”(Line2，Para．5)mostprobablyrefersto__________．

45.

第

47

题

2.__________

参考答案

1.A

2.B

3.B

4.B

5.Engineering．

6.B

7.A

8.A

9.B

10.Origin(s)ofstudent/wherestudentsarefrom/student(s)background(s)．Origin(s)ofstudent/wherestudentsarefrom/student(s)background(s)．

11.B

12.C

13.C

14.C

15.B

16.someonesomeone解析：由本文的第一句话“‘Down-to-earth’meanssomeoneorsomethingthatishonest，realisticandeasytodealwith.”可知“Down-to-earth”指的是诚实，现实、平易近人的那些人。这里的someone和后面是相对应的。故答案为someone。

17.personperson解析：本句话的意思是“与此相反的一类人是那些想入非非的人。”根据上下文的要求这里应该填入man的同义词。故答案为person。

18.customercustomer解析：从这个句子的宾语“…thatheorshehasdoneagoodjobofchoosingtheitems．”可以看出，这里说的是顾客的行为，他们认为自己买这些商品是很理性的。故答案为customer。

19.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。

20.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。

21.dumpingdumping解析：由本句句意“通过将污水和化学物质…入河流和湖泊，…”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。

22.atat解析：某大学