2022年安徽省宣城市公共英语五级(笔试)测试卷(含答案)

2022年安徽省宣城市公共英语五级(笔试)测试卷(含答案)学校:________班级:________姓名:________考号:________

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

Directions:Youwillhearatalk.Asyoulisten,answerthequestionsorcompletethenotesinyourtestbookletforQuestions21-30bywritingNOTMORETHANTHREEwordsinthespaceprovidedontheright.YouwillhearthetalkTWICE.

Younowhave1minutetoreadQuestions21-30.

听力原文：Asyouknow,manybigchangeshappenedafterChristopherColumbusandotherEuropeanscametotheAmericas500yearsago.TodayI'mgoingtotalkaboutachangeintheworlddietthewaypeoplecookedandate.Fivehundredyearsago,therewasabigchangeinthedietofpeopleallovertheworld.

Let'stalkaboutthedietinEurope500yearsago.Oneimportantfoodwasmeat.Europeansatemanykindsofmeat,includingbeef,lamb,goat,andpork.Ekandcheesemadefromthemilkofcowsandgoats.TheEuropeansateseveraldifferentgrains：Mostpeopleatewheat,andsomepeopleaterice,whichcamefirstfromAsia.

Now,let'slookatthedietintheAmericasabout500yearsago.ThedietofthenativeAmericanwasquitedifferentfromthedietoftheEuropeans.ThisisbecausetheEuropeanmeats,dairyproducts,andgrainsdidn'texistintheAmericas.However,thenativeAmericansatesomefoodthatdidn'texistinEurope.ThenativeAmericansatedifferentvegetables,suchaspotatoesandtomatoes.Theyatedifferentgrains,suchascorn.Theyatedifferentmeat,suchasturkeyandotherwildbirds.Theyalsousedspicessuchaschocolateandhotchilipeppers.NoneofthesefoodsexistedinEurope500yearsago.

Nowlet'stalkaboutthebigchangeintheworlddiet500yearsago,afterColumbusandtheEuropeanswenttotheAmericas.

AfterEuropeanswenttotheAmericas,thedietofthenativeAmericanschangedalot.WhentheEuropeanswenttotheAmericas,theytookmanynewkindsoffoodwiththem.TheEuropeansgavesomeofthefood,themeat,dairyproducts,andgrainstothenativeAmericansandthenthenativeAmericansstartedtousetheEuropeanfoodintheircooking.Asaresult,thedietintheAmerica'stodayisverydifferentfromtheirdiet500yearsago.Forexample,ifyougotoacountrylikeMexico,youcanseethatthetraditionalMexicanfoodusesalotofbeef,pork,cheese,wheat,andrice,allfoodsthatcamefromEuropewithColumbus.

AftertheEuropeansreturnedtoEuropefromtheAmericas,therewasalsoabigchangeinthedietofpeopleinEuropeandtherestoftheworld.WhentheEuropeansreturnedtoEurope,theytookmanynewkindsoffoodbackfromtheAmericas.Theytookbackthevegetables,grains,andspicesthattheyfoundintheAmericas.Littlebylittle,peoplealloverEuropestartedusingthenewfoodsintheircooking,andthenthefoodsspreadaroundtheworldtoAfrica,theMiddleEastandAsia.

Someofthenewfoodspreadveryquicklyaroundtheworld.Oneexampleisthechilipepper.Youmaybesurprisedtoknowthat500yearsago,thechilipepperdidn'texistinmanycountriesthat.arefamoustodayfortheirhotandspicyfoodmadewithchilies.Actually．weminkthatthefirstchilipepperwastakentoSpainbyColumbusin1493,whenhereturnedfromtheAmericas.Afteronly100years,chilipeppershadspreadallaroundtheworld.Theygroweasilyinwarmweather.TheonlyplacethatthechilipepperdidnotbecomepopularwasNorthernEurope,probablybecauseitistoocoldtogrowchilipepperseasily.

Althoughchilipeppersspreadquickly,otherfoodsfromtheAmericasspreadveryslowly.Potatoesareagoodexample.Ittookabout250yearsforthepotatoestospreadaroundtheworld.ThereasonittooksolongisthatEuropeansthoughtthatpotatoeswerepoisonous.ThepotatolookedalotlikeaverypoisonousplantthatgrewinEurope.Peoplewereafraidtoeatpotatoes!Foralongtime,peopleonlyusedpotatoestofeedtheirpigs.Butslowly,peoplestartedusingpotatoesasfoodforthemselves.Today,ofcourse

2.OnereasonforthegoodhealthofthepeopleinVilcabambamustbetheclean,beautifulenvironment.

A.RightB.Wrong

3.Waterisasimportantasvitamins,mineralsandproteinsforlife.

A.RightB.Wrong

4.Ifamanlosestheabilitytorecognizehisleftsidehewilllosefeelingonhisbothsides.

A.TrueB.Fasle

5.Do-it-YourselfhasbecomeoneofMr.Miller'shobbies.

A.TrueB.Fasle

6.Oneoftheadvantagesofchainschoolsisthattheyarefamousallovertheworld.

A.TrueB.Fasle

7.Whenwillthespeakertalkabouttheeconomicandpoliticalchanges?

8.Goodbookscandecreaseourcontentmentwhenwearehappyandlessenourtroubleswhenwearesad.

A.RightB.Wrong

9.Whichpowerdoesthemansuggest?

A.Waterpower.

B.Windpower.

C.Solarpower.

D.Electronicalpower.

10.Mr.Millerwillbuyanewhousewiththemoneyhehaswon.

A.TrueB.Fasle

11.Theirschemeisbasedonthepremisethatallpeoplehaveabasicwayof______．

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：Sorryitmustbe!AndtheonegreatadvantageisthatIcansee，ifthegovernmentsetupsmallunitstobuildsolarpanelsandtoinstallthem，itwouldbecreatingemploymentwhichwouldimprovetheunemploymentsituationandbringterrificadvantages．

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

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

W：No，youarefightthere!

M：Butthelightpowerfromthesunwill…

Whatdoesthemanthinkofthegovernment'spresentproposalaboutbuildingmorepowerstationsinthecountry?

A.It'sadangerousproposal.

B.It'sastupidproposal.

C.It'sanadvantageousproposal.

D.It'saviableproposal.

13.Whatwillthespeakerdiscussfirst?

14.Wherecan'tchilipeppergrowaccordingtothetalk?

15.Governmentbuildingsoftenhavespecialpathsforthosepeoplehandicapped.

A.TrueB.Fasle

二、2.UseofEnglish(10题)16.(47)

17.

【C15】

18."Down-to-earth"meanssomeoneorsomethingthatishonest,realisticandeasytodealwith.Itisapleasuretofind【31】______whoisdown-to-earth.Apersonwhoisdown-to-earthiseasytotalk【32】______andacceptsotherpeopleasequals.Adown-to-earthpersonisjustthe【33】______ofsomeonewhoactsimportantorproud.

Down-to-earthpersonsmaybe【34】______membersofsociety,ofcourse.Buttheydonotlettheirimportance"【35】______totheirheads".Theydonotconsiderthemselvestobebetterpersonsthan【36】______oflessimportance.Someonewhoisfilledwithhisownimportanceandpride,【37】______withoutcause,issaidtohave"hisnoseintheair".Thereis【38】______wayapersonwithhisnoseintheaircanbedown-to-earth.

Americans【39】______anotherexpressionthatmeansalmostthesameas"down-to-earth".Theexpressionis"both-feet-on-the-ground".Someone【40】______both-feet-on-the-groundisapersonwithagoodunderstanding【41】______reality.Hehaswhatiscalled"commonsense,"hemayhavedreams,【42】______hedoesnotallowthemtoblockhisknowledgeof【43】______isreal.

Theoppositekindof【44】______isonewhohashis"head-in-the-clouds".Amanwithhishead-in-the-cloudsisadreamer【45】______mindisnotintherealworld.

【46】______,suchadreamercanbebroughtbacktoearth.Sharpwordsfromteachercanusually【47】______aday-dreamingstudentdown-to-earth.

Usually,thepersonwhoisdown-to-earthisvery【48】______tohavebothfeetontheground.【49】______wehavebothourfeetontheground,whenwearedown-to-earth,weacthonestlyandopenly【50】______others.Ourlivesarelikethegroundbelowus,solidandstrong.

(31)

19.

【C16】

20.(39)

21.

【C12】

22.

【C18】

23.(49)

24.

【C4】

25.

【C14】

三、3.ReadingComprehension(15题)26.PartB

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

Fromhervantagepointshewatchedthemaindoorsswingopenandthefirstarrivalspourin.Thosewhohadbeenattheheadofthelinepausedmomentarilyonentry,lookedaroundcuriously,thenquicklymovedforwardasothersbehindpressedin.Withinmomentsthecentralpublicareaofthebigbranchbankwasfilledwithachattering,noisycrowd.Thebuilding,relativelyquietlessthanaminuteearlier,hadbecomeaBabel.Edwinasawatallheavysetblackmanwavesomedollarbillsandannounceloudly,"Iwanttoputmymoneyinthebank."

66.______!

Itseemedasifthereportabouteveryonehavingcometoopenanaccounthadbeenaccurateafterall.

Edwinacouldseethebigmanleaningbackexpansively,stillholdinghisdollarbills.Hisvoicecutacrossthenoiseofotherconversationsandsheheardhimproclaim,"I'minnohurry.There'ssomethingI'dlikeyoutoexplain."

Twootherdeskswerequicklymannedbyotherclerks.Withequalspeed,longwidelinesofpeopleformedinfrontofthem.

Normally,threemembersofstaffwereampletohandlenewaccountbusiness,butobviouslyinadequatenow.EdwinacouldseeTottenhoeonthefarsideofthebankandcalledhimontheintercom.Sheinstructed,"Usemoredesksfornewaccountsandtakeallthestaffyoucansparetomanthem."

67.______

Tottenhoegrumbledinreply,"Yourealizewecan'tpossiblyprocessallthesepeopletoday,andhowevermanywedowilltieusupcompletely."

"I'vegotanidea,"Edwinasaid,"that'swhatsomeonehasinmind.Justhurrytheprocessingallyoucan."

68.______

First,anapplicationform.calledfordetailsofresidence,employment,socialsecurity,andfamilymatters.Aspecimensignaturewasobtained.Thenproofofidentitywasneeded.Afterthat,thenewaccountsclerkwouldtakealldocumentstoanofficerofthebankforapprovalandinitialing.Finally,asavingspassbookwasmadeoutoratemporarycheckbookissued.

Thereforethemostnewaccountsthatanybankemployeecouldopeninanhourwerefive,sothethreeclerkspresentlyworkingmighthandleasumofninetyinonebusinessday,iftheykeptgoingattopspeed,whichwasunlikely.

69.______

Stillthenoisewithinthebankincreased.Ithadbecomeanuproar.

Afurtherproblemwasthatthegrowingmassofarrivalsinthecentralpublicareaofthebankwaspreventingaccesstotellers'countersbyothercustomers.Edwinacouldseeafewofthemoutside,regardingthemillingscenewithconsternation.Whileshewatched,severalgaveupandwalkedaway.

Insidethebanksomeofthenewcomerswereengagingtellersinconversationandthetellers,havingnothingelsetodobecauseofthemelee,chattedback.Twoassistantmanagershadgonetothecentralfloorareaandweretryingtoconductthefloodofpeoplesoastoclearsomespaceatcounters.Theywerehavingsmallsuccess.

70.______

Shedecideditwastimeforherownintervention.

Edwinalefttheplatform.andafailed-offstaffareaand,withdifficulty,madeherwaythroughthemillingcrowdtothemainfrontdoor.

A.Yetsheknewhowevermuchtheyhurrieditwouldstilltaketentofifteenminutestoopenanysinglenewaccount.Italwaysdid.Thepaperworkrequiredthattime.

B.Butstillnohostilitywasevident.Everyoneinthenowjam-packedbankwhowasspokentobymembersofthestaffansweredpolitelyandwithasmile.Itseemed,Edwinathought,asifallwhowereherehadbeenbriefedtobe

27.(77)

28.

Thevalueofcompetitionworksagainstthespiritofnationalcooperationinthat______.

A.itmakespeoplenotbelieveinthegovernment

B.itcausespeopletosuspectbutnottotrusteachother

C.itmakespeopleevenunabletocooperatewellonlocallevels

D.itencouragespeopletogainsuccessthroughindividualhardwork

29.Themanbehindthisnotion,JackMaple,isadandywhoaffectsdarkglasses,homburgs(翘边帽)andtwo-toeshoes;yethehasbecomesomethingofalegendinAmerica'spolicedepartments.Forsomeyears,startinginNewYorkandmovingontohigh-crimespotssuchasNewOrleansandPhiladelphia,heandhisbusinesspartner,JohnLinderhavemarketedatwo-tiersystemforcuttingcrime.

First,policedepartmentshavetosortthemselvesout:rootoutcorruption,streamlinetheirbureaucracy,andmakemorecontactwiththepublic.Second,theyhavetoadoptacomputersystemcalledComstatwhichhelpsthemtoanalyzestatisticsofallmajorcrimes.Theseareconstantlykeyedintothecomputer,whichthendisplayswhereandwhentheyhaveoccurredonacolor-codedmap,enablingthepolicetomonitorcrimetrendsastheyhappenandtospothigh-crimeareas.InNewYork,Comstat'sstatisticalmapsareanalyzedeachweekatameetingofthecity'spolicechiefandprecinctcaptains.

MessrsMapleandLinder("specialistsincrime-reductionservices")havenodoubtthattheirsystemisamaincontributortothedropincrime.WhentheyintroduceditinNewOrleansinJanuary1997,violentcrimedroppedby22%inayear;whentheymerelystartedworkinginformallywiththepolicedepartmentinNewark,NewJersey,violentcrimefellby13%.Policedepartmentsarenowlininguptopayasmuchas$50,000amonthforthesetwomentoputthemstraight.

Probablyallthesenewpoliciesandbitsoftechnicalwizardry,addedtogether,havemadeabigdifferencetocrime.Butthereremainanomaliesthatcannotbeexplained,suchasthefactthatcrimeinWashingtonD.C.,hasfallenasfastasanywhere,althoughthepolicedepartmenthasbeencorruptandhopelessand,inlargestretchesofthecity,neitherpolicenorresidentsseemdisposedtofightthecriminalsintheirmidst.

Themoreimportantreasonforthefallincrimerates,manysay,isamuchlesssophisticatedone.Itisafactthatcrimerateshavedroppedastheimprisonmentratesoared.In1997thenationalincarcerationrate,at645per100000peoplewasmorethandoubletheratein1985,andthenumberofinmatesincityandcountyjailsroseby9.4%.almostdoubleitsannualaverageincreasesince1990.Surelysomecriminologistsargue,onesetoffiguresisthecauseoftheother.Itisprecisebecausemorepeoplearebeingsenttoprison,theyclaimthatcrimeratesarefalling.A1993studybytheNationalAcademyofSciencesactuallyconcludedthatthetriplingoftheprisonpopulationbetween1975and1989hadloweredviolentcrimeby10-15%.

Yetcauseandeffectmaynotbesoobviouslylinked.Tobeginwith,thesaleandpossessionofdrugsarenotcountedbytheFBIinitscrimeindex,whichislimitedtoviolentcrimesandcrimesagainstproperty.Yetdrugoffencesaccountformorethanathirdoftherecentincreaseinthenumberofthosejailed;since1980,theincarcerationratefordrugarrestshasincreasedby1000%.Andalthoughaboutthree-quartersofthosegoingtoprisonfordrugoffenceshavecommittedothercrimesaswell,thereisnotyetacrystal-clearconnectionbetweenfillingthejailswithdrug-pushersandadeclineintherateofviolentcrime.Again,thoughnationalfiguresaresuggestive,localonesdiverge:theplaceswherecrimehasdroppedmostsharply(suchasNewYorkCity)arenotalwaystheplaceswhereincarcerationhasrisenfastest.

JackMaplestartedhiscareerin______.

A.PhiladelphiaB.OregonC.NewOrleansD.NewYork

30.

Whatisthemainpurposeofthepassage?

A.Tooutlinetheresearchfindingsonthebrainstructure.

B.Toexplainthelinkbetweensexandbrainstructure.

C.Todiscussthevariousfactorsthatcausebraindifferences.

D.Tosuggestnewareasinbrainresearch.

31.(70)

32.PartB

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

Withunfamiliarhumanbeings,whenweacknowledgetheirhumanness,wemustavoidstaringatthem,andyetwemustalsoavoidignoringthem.Tomakethemintopeopleratherthanobjects,weuseadeliberateandpoliteinattention.Welookatthemlongenoughto,makeitquiteclearthatweseethem,andthenweimmediatelylookaway.

66.______

Theimportantthinginsuchanexchangeisthatwedonotcatchtheeyeofonewhomwearerecognizingasaperson.Welookathimwithoutlockingglances,andthenweimmediatelylookaway.Recognitionisnotpermitted.

67.______

Ifyoupasssomeoneinthestreet,youmayeyetheoncomingpersonuntilyouareabouteightfeetapart,thenyoumustlookawayasyoupass.Beforetheeight-footdistanceisreached,eachwillsignalinwhichdirectionhewillpass.Thisisdonewithabrieflookinthatdirection.Eachwillveerslightlyandthepassingisdonesmoothly.

68.______

Tostrengthenthissignal,youlookdirectlyattheother'sfacebeforelookingaway.69.______

Itbecomesimpossibletodiscoverjustwhattheyaredoing.Aretheylookingatyoutoolong,toointently?Aretheylookingatyouatall?Thepersonwearingtheglassesfeelsprotectedandassumesthathecanstarewithoutbeingnoticedinhisstaring.However,thisisaself-deception.Totheotherperson,darkglassesseemtoindicatethatthewearerisalwaysstaringathim.

Weoftenusethislook-awaytechniquewhenwemeetfamouspeople.Wewanttoassurethemwearerespectingtheirprivacyandthatwewouldnotdreamofstaringatthem.Thesameistrueofthecrippledorphysicallyhandicapped.Welookbriefandthenlookawaybeforethestarecanbesaidtobeastare.

70.______

Ofcourse,theoppositeisalsotrue.Ifwewishtoputapersondown,wemaydosobystaringlongerthanisacceptablypolite.Insteadofdroppingourgazeswhenwelockglances,wecontinuetostare.Thepersonwhodisapprovesofinterracialmarriagesordatingwillstarerudelyattheinterracialcouple.Ifhedislikeslonghair,shortdresses,orbeards,hemayshowitwithalonger-than-acceptablestare.

A.Therearedifferentformulasfortheexchangeofglancesdependingonwherethemeetingtakesplace.

B.Inthesubwayorbuswherelongridesinveryclosecircumstancesareanecessity,wemaybehardputtofindsomewayofnotstaring.Wesneakglances,butlookawaybeforeoureyescanlock.Ifwelookwithanunfocusedglancethatmissestheeyesandsettlesonthehead,themouth,thebodyforanyplacebuttheeyesisanacceptablelookingspotfortheunfocusedglance.

C.Actuallyinthiswaywearesaying,inbodylanguage,"Iknowyouarethere,"andamomentlaterweadd,"ButIwouldnotdreamofintrudingonyourprivacy."

D.Itisthetechniqueweuseforanyunusualsituationwheretoolongastarewouldbeembarrassing.Whenweseeaninterracialcouple,wealsousethistechnique.Wemightuseitwhenweseeamanwithanunusualbeard,withextralonghair,withoutlandishclothes,oragirlwithaminimalminiskirtmayattractthislook-and-away.

E.ForthispassingencounterDr.ErvingGoffmaninbehavior.inpublicplacessaysthatthequicklookandtheloweringoftheeyesisbodylanguagefor,"Itrustyou.Iamnotafraidofyou."

F.Sometimestherulesarehardtofollow,particularlyifoneofthetwopeoplewearsdarkglasses.

(66)

33.(76)

34.(79)

35.

Inpolitics,astronautsaregenerally______.

A.democratsB.republicansC.conservativesD.communists

36.

Whyistransitiondifficult?

A.Becausetransitionrequiresmoneyandtime.

B.Becausemanymanufacturersareunwillingtochangetheirequipment.

C.Becauseresearchonnewmaterialsisverydifficult.

D.Becauseittakeslongtime.

37.

TheGTE'sexampleshowsthat______.

A.efficienttechnologyiscost-effective

B.manymeetingsinacompanyareunnecessary

C.manypositionslikethatofatypistcanbedoneawaywith

D.itdoesn'tcostmuchtoautomatethefacilitiesofacompany

38.

Fromthepassage,welearnthattheauthor

A.didn'tlikeRaoul'swayofdeliveringthepaper

B.didn'trealizewhyRaouldeliveredthepaperthatway

C.didn'tknowthatRaoulcameveryearlyinthemorning

D.didn'tfeelitnecessarytomeetRaoulwhenhecame

39.

WhichofthefollowingstatementsisNOTtrue?

A.Anyform.ofpropertyissubjecttoanestatetaxwhentransferred．

B.Propertytaxprovidesapartofincomeforlocalgovernment．

C.Thereareafewkindsofsalestaxes．

D.Individualsandcorporationsbothpayincometaxes．

40.

Theword"connoisseurs"(Paragraph1)mostprobablymeans______.

A.representativesinthePre-RaphaeliteMovement

B.peoplewhoareinfavorofFlorentine

C.criticswhoarelikelytomakeassessments

D.conservativesclingingtoclassicalart

四、阅读理解(5题)41.

第

33

题

maygiveoffdangerousradioactivepollutionintotheair?__________

42.

第

23

题

presentsthelargestandmostcompleteensembleoftraditionalarchitecture?__________

43.

第

48

题

3.__________

44.

第

32

题

Wecanlearnfromthetextthatartcriticshaveahistoryof__________．

45.

第

46

题

isconsideredasthetopfivemoviesallthetime?__________

参考答案

1.(In)Asia．

2.B

3.B

4.B

5.A

6.A

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

8.B

9.C

10.B

11.seeingtime

12.B

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

14.InNorthernEurope．

15.B

16.dividedivide解析：根据上下文语境，这里是“分为”，divide…upinto意为“把…划分为”。所以此处应填动词“divide”。

17.asas解析：such…as意为“这样的…如”。此空后为并列的三个分词短语，即“如”后跟的例举事项。

18.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。

19.referencereference解析：这三个分词短语意为“执行日常运算、挖掘…材料、操作再生产设备”。显然，“参考材料”最合适。

20.useuse解析：后面的一句话"Theexpressionis‘both-feet-on-the-ground．’”表示down-to-earth的另一种表达方法是both-feet-on-the-ground。而后一种说法是美国人的用法，常常被美国人使用。故答案为use。

21.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。

22.likelylikely解析：前面所说的thepersonwhoisdown-to-earth与thepersonwhosebothfeetontheground大体是一类人，所以这里表达的意思是“很有可能就是一类人”。belikelytodo就表达了这种意思。故答案为likely。

23.complycomply解