2022-2023年湖南省婁底市公共英語(yǔ)五級(jí)(筆試)真題(含答案)

2022-2023年湖南省婁底市公共英語(yǔ)五級(jí)(筆試)真題(含答案)學(xué)校:________班級(jí):________姓名:________考號(hào):________

一、1.ListeningComprehension(15題)1.WhichofthefollowingstatementsisNOTTRUE?

A.Gettingofftoworkwithaminimumefforthelpssaveone'senergy.

B.Dr.Kleimanexplainswhypeoplereachtheirpeaksatdifferenthoursofaday.

C.Habithelpsapersonadapttohisownenergycycle.

D.Childrenhaveenergycycles,too.

2.Accordingtoanotherexplanation，wheredidthisexpressionprobablycomefrom?

A.Australia．B.Japan．C.Netherland．D.England．

3.PartC

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

Younowhave1minutetoreadQuestions21-30.

聽(tīng)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

4.HowmanypeopledependonlocalriceandfoodinSouthAsiacurrently?

A.Morethan150millionpeople.

B.Lessthan150millionpeople.

C.About100millionpeople.

D.About120millionpeople.

5.WhatdoesthespeakersayaboutLowTillFanning?

A.It'sanewwayofapplyingchemicalfertilizer.

B.It'sanimprovedmethodofharvestingcrops.

C.It'sacreativetechniqueforsavinglabor.

D.It'safanningprocesslimitingtheuseofplows.

6.Yourwishtovisitsomefar-offplacescanberealizedbyjustreadingbooks.

A.RightB.Wrong

7.PartA

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

聽(tīng)力原文：Everyyeartherearereportsofpeopledyingastheresultofextremelyhotweather.Manyofthevictimsareoldpersons,whoseheartsorbreathingsystemsdecline.Butmanydiefromlackofwater.

Waterisnecessaryforlifeandgoodhealth.Weoftenforgetthisfactwhenwethinkabouttheotherbuildingblocksoflifesuchasvitamins,mineralsandproteins.Wecanliveformanydayswithouteating,buttwoorthreedayswithoutwaterusuallyleadstodeath.

Thehumanbodymaylooksolid,butmostofitiswater.Newbornbabiesareasmuchas85%water.Womenareabout65%waterandmenabout75%.Womenusuallyhavelesswaterthanmenbecausewomen,ingeneral,havemorefatcells,andfatcellsholdlesswaterthanotherkindsofcells.

Waterdoesmanydifferentthingstokeepushealthy.Itcarrieshormones,antibodiesandfoodsthroughthebody,andcarriesawaywastematerials.Thatiswhydifferentpartsofthebodycontaindifferentamountsofwater.Forexample,bloodis83%water,musclesare75%water,thebrainis74%,andbonesare25%,.

Waterisalsonecessaryforcoolingthebodyunderhotweatherandwhenweareworkinghardorexercising.Watercarriesbodyheattothesurfaceoftheskin,wheretheheatislostthroughperspiration.Researcherssaycoolliquidscoolusfasterthanwarmliquids,becausecoldliquidstakeupmoreheatinsidethebodyandcarryitawayfaster.Theysay,however,thatcoldsweetdrinksdonotworkwellbecausethesugarslowstheliquidfromgettingintotheblood-stream.

Researchersalsonotethatfatcellsblockbodyheatfromescapingquickly.Fatcellsundertheskinactlikewarmclothingtokeepbodyheatinside.Thisiswhyoverweightpeoplehaveamoreeasytimestayingcoolthanthinpeople.

Thebodyloseswatereverydaythroughperspirationandurine.Ifwelosetoomuch,wewillbecomesick.A10%dropinbodywatercancausethebloodsystemtofail.A15%~20%dropusuallyleadstodeath.Toreplacewhatislost,healthexpertssaygrowingpersonsshoulddrinkabout2litersofliquidseachday,andmoreinhotweather.Theysaywecanalsogetsomeofthewaterweneedinthefoodsweeat.Mostfruitsandvegetablesaremorethan80%water.Meatsare50%~60%water.Andevenbreadisabout33%water.Watermaybeoneofthemostsimpleofallchemicalsubstances,butitisthemostimportantsubstancethatweputintoourbodies.

Waterisakindofchemicalsubstance.

A.TrueB.Fasle

8.Goodbookscanprovideuswithawiderangeofexperiences.

A.TrueB.Fasle

9.Whatservicemustbepaidfor?

A.Computerclasses.

B.Trainingsessions.

C.Laserprinting.

D.Packageborrowing.

10.Whydoesthespeakersuggestwerisewithayawnandstretch?

A.Becauseitwillhelpkeepyourenergyfortheday'swork.

B.Becauseitwillhelpyoutocontrolyourtemperearlyintheday.

C.Becauseitwillhelpyoutoconcentrateonyourroutinework.

D.Becauseitwillkeepyourenergycycleundercontrolallday.

11.Wangintendstostudyhowcomputerisusedforlanguagetranslation.

A.RightB.Wrong

12.PeopleintheCaucasusMountainsnotonlylivelongbutalsohaveagoodphysicalcondition.

A.TrueB.Fasle

13.Inwhataspectsdoesthespeakerthinkalloftheseculturalchangesarestrengthened?

14.WhyareAmericanstudentsusuallyunderpressureofwork?

A.Becausetheiracademicperformancewillaffecttheirfuturecareerinthefuture.

B.Becausetheyareheavilyinvolvedinstudentaffairs.

C.Becausetheyhavetoobservetheuniversitydiscipline.

D.Becausetheywanttorunforpositionsofauthority.

15.Whathasgivenwomenanindependenceinformingafamily?

二、2.UseofEnglish(10題)16.

【C18】

17.(42)

18.

【C10】

19.(32)

20.

【C6】

21.Themostobviouspurposeofadvertisingistoinform.theconsumerofavailableproductsorservices.Thesecond【31】______istoselltheproduct.Thesecondpurposemightbemoreimportanttothemanufacturersthanthe【32】______.Themanufacturersgobeyondonlytellingconsumersabouttheirproducts.Theyalsotrytopersuadecustomerstobuythe【33】______bycreatingadesire【34】______it.Becauseofadvertisement,consumersthinkthattheywantsomethingthattheydonotneed.Afterbuyingsomething,thepurchasercannotalwaysexplainwhyitwas【35】______.

Even【36】______thepurchaserprobablydoesnotknowwhyheorsheboughtsomething,themanufacturers【37】______.Manufacturershaveanalyzedthebusinessof【38】______andbuying.Theyknowallthedifferentmotivesthatinfluenceaconsumer'spurchase—somerationaland【39】______emotional.Furthermore,theytakeadvantageofthis【40】______.

Why【41】______somanyproductsdisplayedatthecheckoutcountersingrocerystores?Thestoremanagementhassomegood【42】______.Bythetimethecustomeris【43】______topayforapurchase,heorshehasalreadymaderational,thought-outdecisions【44】______whatheorsheneedsandwantstobuy.The【45】______feelsthatheorshehasdoneagoodjobofchoosingtheitems.Theshopperisespeciallyvulnerableatthispoint.The【46】______ofcandy,chewinggum,andmagazinesareveryattractive.Theypersuadethepurchasertobuysomethingforemotional,not【47】______motives.Forexample,thecustomerneitherneedsnorplanstobuycandy,butwhilethecustomerisstanding,waitingtopaymoney,heorshemaysuddenlydecidetobuy【48】______.Thisisexactly【49】______thestoreandthemanufacturerhopethatthecustomerwill【50】______.Thecustomerfollowshisorherplan.

(31)

22.

【C2】

23.(38)

24.

【C17】

25.

【C12】

三、3.ReadingComprehension(15題)26.(69)

27.PartA

Directions:ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.

Inrecentyears,therehasbeenasteadyassaultonsaltfromthedoctors:Saltisbadforyou—regardlessofyourhealth.Politiciansalsogotonboard."Thereisadirectrelationship,"UScongressmanNealSmithnoted,"betweentheamountofsodiumapersonconsumesandheartdisease,circulatorydisorders,strokeandevenearlydeath."

Frightening,iftrue!Butmanydoctorsandmedicalresearchersarenowbeginningtofeelthesaltscarehasgonetoofar."Allthishueandcryabouteatingsaltisunnecessary,"Dr.Dustaninsists."Formostofusitprobablydoesn'tmakemuchdifferencehowmuchsaltweeat."Dustan'smostrecentshort-termstudyof150peopleshowedthatthosewithnormalbloodpressureunderwentnochangeatallwhenplacedonanextremelylow-saltdiet,orlaterwhensaltwasreintroduced.Ofthehypertensivesubjects,however,halfofthoseonthelow-saltdietdidexperienceadropinbloodpressure,whichreturnedtoitspreviouslevelwhensaltwasreintroduced.

"Anadequatetosomewhatexcessivesaltintakehasprobablysavedmanymorelivesthanithascostinthegeneralpopulation,"notesDr.JohnH.Laragh."Soarecommendationthatthewholepopulationshouldavoidsaltmakesnosense."

Medicalexpertsagreethateveryoneshouldpracticereasonable"moderation"insaltconsumption.Foranaverageperson,amoderateamountmightrunfromfourtotengramsaday,orroughly1/2to1/3ofateaspoon.Thee-quivalentofonetotwogramsofthissaltallowancewouldcomefromthenaturalsodiuminfood.Therestwouldbeaddedinprocessing,preparationoratthetable.

Thosewithkidney,liverorheartproblemsmayhavetolimitdietarysalt,iftheirdoctoradvises.Buteventheveryvocal"lowsalt"exponent,Dr.ArthurHullHayes,Jr.admitsthat"Wedonotknowwhetherincreasedsodiumconsumptioncauseshypertension."Infact,thereisincreasingscientificevidencethatotherfactorsmaybeinvolved:deficienciesincalcium,potassium,perhapsmagnesium;obesity(muchmoredangerousthansodium);geneticpredis-potition;stress.

"Itisnotyourenemy,"saysDr.Laragh,"SaltistheNo.1naturalcomponentofallhumantissue,andtheideathatyoudon'tneeditiswrong.Unlessyourdoctorhasproventhatyouhaveasalt-relatedhealthproblem,thereisnoreasontogiveitup."

Accordingtosomedoctorsandpoliticians,theamountofsaltconsumed______.

A.exhibitsasanaggravatingfactortopeopleinpoorhealth

B.curesdiseasessuchasstrokeandcirculatorydisorders

C.correlateshighlywithsomediseases

D.isirrelevanttopeoplesufferingfromheartdisease

28.(72)

29.

Theauthorimpliesinthesecondparagraphthat______.

A.theproposaloftheDepartmentofJusticeisunjustified

B.surveillanceofanysuspectcommunicationisnecessary

C.civillibertiesgroupsshouldnothaveshownsuchgreatconcern

D.exceptionsshouldbemadeininterceptingcommunications

30.Beforeabigexam,asoundnight'ssleepwilldoyoubetterthanporingovertextbooks.That,atleast,isthefolkwisdom.Andscience,intheform.ofbehavioralpsychology,supportsthatwisdom．Butsuchbehavioralstudiescannotdistinguishbetweentwocompetingtheoriesofwhysleepisgoodforthememory.Onesaysthatsleepiswhenpermanentmemoriesform.Theothersaysthattheyareactuallyformedduringtheday,butthen“edited”atnight,toflushawaywhatissuperfluous.

Totellthedifference,itisnecessarytolookintothebrainofasleepingperson,andthatishard.Butafteradecadeofpainstakingwork,ateamledbyPierreMaquetatLiegeUniversityinBelgiumhasmanagedtodoit.TheparticularstageofsleepinwhichtheBelgiangroupisinterestedisrapideyemovement(REM)sleep,whenbrainandbodyareactive,heartrateandbloodpressureincrease,theeyesmovebackandforthbehindtheeyelidsasifwatchingamovie,andbrainwavetracesresemblethoseofwakefulness.Itisduringthisperiodofsleepthatpeoplearemostlikelytoreliveeventsofthepreviousdayindreams.

Dr.MaquetusedanelectronicdevicecalledPETtostudythebrainsofpeopleastheypracticedataskduringtheday,andastheysleptduringthefollowingnight.Thetaskrequiredthemtopressabuttonasfastaspossible,inresponsetoalightcomingoninoneofsixpositions.Astheylearnthowtodothis,theirresponsetimesgotfaster.Whattheydidnotknowwasthattheappearanceofthelightssometimesfollowedapattern—whatisreferredtoas“artificialgrammar”.Yetthereductionsinresponsetimeshowedthattheylearntfasterwhenthepatternwaspresentthanwhentherewasnot.

Whatismore,thosewithmoretolearn(i.e.the“grammar”,aswellasthemechanicaltaskofpushingthebutton)havemoreactivebrains.The“editing”theorywouldnotpredictthat,sincethenumberofirrelevantstimuliwouldbethesameineachcase.Andtoeliminateanydoubtsthattheexperimentalsubjectswerelearningasopposedtounlearning,theirresponsetimeswhentheywokeupwereevenquickerthanwhentheywenttosleep.

Theteam,therefore,concludedthatthenerveconnectionsinvolvedinmemoryarereinforcedthroughreactivationduringREMsleep,particularlyifthebraindetectsaninherentstructureinthematerialbeinglearnt.Sonow,ontheeveofthatcrucialtest,mathsstudentscansleepsoundlyintheknowledgethatwhattheywillrememberthenextdayarethebasicrulesofalgebraandnottheincoherenttalkfromtheradionextdoor.

Researchersinbehavioralpsychologyaredividedwithregardto______．

A.howdreamsaremodifiedintheircourses

B.thedifferencebetweensleepandwakefulness

C.whysleepisofgreatbenefittomemory

D.thefunctionsofagoodnight'ssleep

31.(73)

32.

Theenclosuresofthe17thand18thcenturiesmeantthat______.

A.peoplewerenolongerlegallyentitledtoownland

B.peopleweredriventolookelsewhereformeansofsupportingthemselves

C.peoplewerenotadequatelycompensatedforthelossoftheirland

D.peoplewerebadlypaidfortheworktheymanagedtofind

33.

Thephrase“talkingshop”(Line4,Para.6)probablymeans______．

A.talkingaboutshopping

B.discussingone'sworkwithcolleagues

C.exchangingpersonalnews

D.talkingwithfriendsinagroup

34.

Howdothepublicfeelaboutthecurrenteconomicsituation?

A.OptimisticB.ConfusedC.CarefreeD.Panicked

35.

Accordingtothepassage,whichofthefollowingisTRUE?

A.AllAmericansarepersuadednottogetvaccinatedthisyear.

B.Thebigproblemininnovatingfluvaccineproducingtechniqueishowtogrowvirusinanewway.

C.Morefluvaccinescannotbeproducedinashorttimebecauseprivatecompaniesrefusetoproducemore.

D.Fluvaccinesareeasierthanmostvaccinestoproducethroughcellcultures.

36.

Accordingtothepassage,speciallaborlawsprotectingwomenworkerstendgenerallytohavewhichofthefollowingeffects?

A.Theytendtomodifythestereotypesemployeesoftenholdconcerningwomen.

B.Theyincreasetheadvantagetoemployersofhiringmeninsteadofwomen,makingitlesslikelythatwomenwillbehired.

C.Theydecreasethelikelihoodthatemployerswilloffermoreprotectiontowomenworkersthanthatwhichisabsolutelyrequiredbylaw.

D.Theyincreasethetendencyofemployerstodenyhealthinsuranceanddisabilityplanstowomenworkers.

37.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.

38.

______providesaround20%oftheworld’selectricity?

39.

Theenclosuresofthe1thand18thcenturiesmeantthat_______．

A.peoplewerenolongerlegallyentitledtoownland

B.peopleweredriventolookelsewhereformeansofsupportingthemselves

C.peoplewerenotadequatelycompensatedforthelossoftheirland

D.peoplewerebadlypaidfortheworktheymanagedtofind

40.(76)

四、閱讀理解(5題)41.

第

32

題

pollutioncontrolneedsthesupportoftechnologyandtechniques?__________

42.

第

39

題

Whichofthefollowingstatementsisnottrue?

43.

第

50

題

5.__________

44.

第

47

題

enablesplayerstoconstructbuildingsindifferentstyles?__________

45.

第

33

題

maygiveoffdangerousradioactivepollutionintotheair?__________

參考答案

1.B

2.D

3.(In)Asia．

4.A

5.D

6.A

7.A

8.A

9.C

10.A

11.A

12.A

13.Mediaeducationalsystem．

14.A

15.Participationineconomy．

16.thoughthough解析：參見(jiàn)47題解析，由本句句意“…更便宜，…它的95%的部件仍可以使用?！笨芍?，此空處應(yīng)填“盡管，即使”，即eventhough。

17.butbut解析：這里表達(dá)的前后句意是一種轉(zhuǎn)折關(guān)系。前面說(shuō)“hemayhavedreams，”而后面“hedoesnotallowthemtoblockhisknowledge…”的意思卻是“但是他也不會(huì)讓這些夢(mèng)想阻擋自己對(duì)什么是現(xiàn)實(shí)的理解?！惫蚀鸢笧閎ut。

18.knowledgeknowledge解析：前面講商家正確的分析市場(chǎng)的供需信息，知道是什么因素影響顧客的購(gòu)買(mǎi)欲望。這就是他們利用的信息知識(shí)。故答案為knowledge。

19.whowho解析：此空后的句子顯然為定語(yǔ)從句，修飾“Behaviorists”，所以應(yīng)填一個(gè)who，引導(dǎo)修飾人的定語(yǔ)從句。

20.alsoalso解析：由35題解析，拼寫(xiě)有問(wèn)題的學(xué)生必定握筆習(xí)慣不好。

21.purposepurpose解析：從文中的第一句話“Themostobviouspurpose…”可以看出后面還有別的目的，而不是僅僅有最明顯的目的。故答案為purpose。

22.whowho解析：此空后的句子顯然為定語(yǔ)從句，修飾“Behaviorists”，所以應(yīng)填一個(gè)who，引導(dǎo)修飾人的定語(yǔ)從句。

23.onon解析：此題也考查介詞的用法，在電話中交談，一般用onthephone。所以此處應(yīng)填介詞“on”。

24.InsteadInstead解析：由本句句意“…修一臺(tái)烤箱或一臺(tái)收音機(jī)，買(mǎi)一臺(tái)新的、扔掉舊的更容易、更便宜…”可知，肯定是“不修”，又因?yàn)橛薪樵~of，所以應(yīng)填intead。insteadof意為“不做某事”，是固定短語(yǔ)。

25.workwork解析：本句意為“我們以前已經(jīng)嘗試過(guò)，但是不…?！憋@然，此空處應(yīng)填“奏效，起作用”，英語(yǔ)中表達(dá)這一含義最地道的詞就是work。

26.CC解析：接下來(lái)講的是人體的免疫系統(tǒng)與毒藤之間的關(guān)系。毒藤會(huì)使人產(chǎn)生什么樣的反應(yīng)，該空緊接的就是毒藤過(guò)敏反應(yīng)時(shí)如何產(chǎn)生的?！癏ere'showthepoisonivyresponseoccurs．”一句承上啟下。所以本題應(yīng)選C。

27.C解析：由短文第一段中的“Smithnoted，‘Betweentheamoutofsodiumapersonconsumesandheartd