2021-2022年广东省中山市公共英语五级(笔试)重点汇总（含答案）

2021-2022年广东省中山市公共英语五级(笔试)重点汇总（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：Lasttimewestartedlookingatthequestionofmanagementandwonderingwhatthetermactuallymeant.Thenwetookabrieflookattheconceptofscientificmanagement.Youremember,wedecideditwasusefulbutnotenoughonitsown.Sotodaywe'regoingtolookatanotheraspect—behavioralmanagement.Youmaynotreallyhavecomeacrossthisword"behavioral"before,thoughI'msureyouarefamiliarwiththeword"behavior".Behavioralsimplymeanshavingtodowithbehavior.Andthatisourstartingpointfortoday:Wearegoingtostartbyrealizingthattheactivityofanyorganizationishumanactivity,designedtoachievehumangoals.Sowearereallytalkingabouthumanbehavior.

Anybusinessconcerndoestwothings.First,itprovideseithergoodsorservicesthatthecustomerneeds.Thatis,iteithermakesthingsordoesthingsforotherpeopleinexchangeformoney.Second,itprovidespeoplewithwork—andmostofushavetoworkinordertomakealiving.

Work,muchaswemaysometimeswishwedidn'thavetodoit,ornotquitesomuchofit,hasinfacttwoadvantages.First—andIspokeaboutthislasttime—itcangiveussatisfaction.Wecanbeproudofwhatwearedoing—likeacraftsmanmakingsomethingbeautiful,oradoctorofanursehelpingpeoplewhoareillorinpain.ThisiswhatIcalledjobsatisfaction,andwithoutitIamsureworkcanbecomeanawfulburden.Andonamorebasiclevel,workearnsusmoney,whichwecanusetobuythethingsweneedinordertolive,likefoodandsomewheretolive,aswellasalltheluxurieswecouldprobablydowithoutbutstillliketohave.

Behavioralmanagementisbasedonaresearchofhowpeoplebehaveatwork.Itusesthefindingsofpsychologistsandsociologists,andsoon.Thesemakeastudyofindividualsandgroupstoseewhatthingsinfluencethewaytheybehaveindifferentconditions.Theresultscanthenbeusedtodesignthebestconditionsinwhichpeoplewillperform—orbehave—inthewaythatamanagerwantsthemtoinordertomakeabusinessmoreefficientandtoachieveitsgoals.Theyhavecollectedalotofevidenceandformulatedalotoftheoriestohelpthemanager,andthereisnodoubtthatproperlyunderstoodandapplied,thiscanbeveryuseful.

Butstillwereturntothefactthatpeopleareindividuals,alldifferentfromeachother,andall—aswesay—withmindsoftheirown.Sonomatterwhatthemanagerknowsaboutthewaypeoplebehaveingroupsandsoon,hehasreallytotreateveryoneonhisstaffasanindividualinhisownright.Ofcourse,hecanbehelpedinthisbyknowinghowtoencouragepeopletodothings,howtostimulatethemtobehaveinacertainway,andsoon.Amanagercanhimselfbetaughthowtodothis,buthoweverunscientificthismaysound,itismorelikelythatagoodmanagerisbornratherthantrained.Hehassomenaturalabilitytorecognizewhatpeoplearelikelytodo,whatabilitiestheyhave,andotherthingslikethat.Realizingthis,andthenapplyingwhathehaslearnedabouthumanbehavior,iswhatmakessomeoneagoodmanager.

Sobehavioralmanagementismanagementbasedonanassessmentofanindividualandtheapplicationofwhatisknownabouthowpeopleingeneraltendtobehave.Likescientificmanagement,itisundoubtedlyuseful,butnot,thecompleteanswer.

Whatdidthespeakertalkaboutlasttime?

2.WhendidDicksongotoBostonforeyetreatment?

A.In1848.

B.Intheearly1850s.

C.Inthelate1850s.

D.Intheearly1860s.

3.WherecouldtheboatsfindthelettersatCapeHorn?

4.Sugarincoldsweetdrinksslowstheliquidfromgettingintotheblood-stream.

A.RightB.Wrong

5.Besidestheproblemofspeakingtoofast,whatelsewillmakelisteningmoredifficult?

6.OnereasonforthegoodhealthofthepeopleinVilcabambamustbetheclean,beautifulenvironment.

A.TrueB.Fasle

7.Whatwillthespeakerdiscussfirst?

8.Dr.WilsonissatisfiedwithWang'spastexperience.

A.TrueB.Fasle

9.Whatdoes"itisasplainasthenoseonyourface"mean?,

A.Itiseasytosolve.

B.Somethinglookslikeyournose.

C.Itissomethingquiteunderstandable.

D.Thereisaplain-lookingnoseonyourface.

10.Thedietsofthepeopleinthethreeregionsaretotallydifferent.

A.TrueB.Fasle

11."Totravelbybook"meanstotakeimaginaryjourneystotheplacesmentionedinthebook.

A.RightB.Wrong

12.StudyinginanEnglish-speakingcountryisaveryeffectivewaytolearnEnglish.

A.RightB.Wrong

13.PartB

Directions:Youwillhear3conversationsortalksandyoumustanswerthequestionsbychoosingA,B,CorD.YouwillheartherecordingONLYONCE.

听力原文：W：Doyouenjoyyourwork?Doyouenjoymeetingpeople?

M：Yes．Sometimes．I'vegottobehonest．Sometimes．

W：So，somepeopleyoulikeandsomeyoudon't?

M：Yeah，it’slikealotofthings，meetingthegeneralpublic．Yougetgooddays，andyougetbaddays．ButIdoenjoythejob．Ilikethefreedomofthejob，beingself-employed．

W：Doyouevergetdifficultpassengers?

M：Yes，sometimes．

W：Whatsortofthingsdotheygetupto?

M：Iwouldsaysometimesalotofdifficultpassengersarepeoplewhodon'tgoincabsalotandthey'reunfamiliarwithprocedures．especiallyifyouworknights．Peopledrinkingortheextrasthatwouldbeincludedonthetariffafteracertaintimeofnight．

W：Youmeantheyarguewithyouovermoney?

M：Yes，thatcanhappen．Ortheway…thegoodthingis，peoplecanargueaboutthewaythatyougoonacertainroutebecausetheyalwaysknowbetter．Butninetimesoutoftentheroutethattheytakeyouonisfarlongerso，youknow，they'retheeventuallosers．

W：Soifyoudohaveadifficultpassengeryouwanttogetridof．whatdoyoudo?

M：I'dstopthecabandtellthemtogetout．

W：Doesthatoftenhappen?

M：Mmm，it'shappenedtomethreetimes．Andthey'vegotout．SoI，Imyselfhaven'thadalotofproblemswithdifficultpeople，youknow．

W：Whenyoupickuptouristsaspassengers，whatkindofplacesdotheyliketogoto?

M：IsupposethemostfamouslandmarkisBuckinghamPalace．theTowerofLondon，maybeHarrods；butcertainlyBuckinghamPalace．

Whatdoesthemando?

A.Ataxi-driver．

B.Abusdriver．

C.Apoliceman．

D.Atouristguide．

14.Whathasgivenwomenanindependenceinformingafamily?

15.Theirschemeisbasedonthepremisethatallpeoplehaveabasicwayof______．

二、2.UseofEnglish(10题)16.

【C14】

17.(40)

18.

【C7】

19.(39)

20.(49)

21.

【C3】

22.

【C19】

23.(37)

24.

【C16】

25.(48)

三、3.ReadingComprehension(15题)26.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

27.(67)

28.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

29.

Whatisthemainmessageofthistext?

A.Thatthesaltscareisnotjustified.

B.Thattheorginofhypertensionisnowfound.

C.Thatthemoderateuseofsaltisrecommended.

D.Thatsaltconsumptionistobepromoted.

30.(77)

31.

Whichofthefollowingstatementsistrueaboutinsuranceproducts?

A.Peoplehavenochoicewhenbuyinginsuranceproducts.

B.Thereweresomanychoicesininsuranceproductsinthepastthatpeoplefounditdifficulttomakeadecision.

C.Therearenobetterandcheaperinsuranceproducts.

D.Itisbetterforpeopletohavesomanyinsuranceproductstochoose.

32.

Whycouldnotceramicsbeusedwidelyinthepast?

A.Becauseoftheirbrittleness.

B.Becausepeopledidn'tknowhowtousethem.

C.Becausetheywerenotuseful.

D.Becausetheycouldnotresistheat.

33.PartB

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

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

Supermarketshoppershaveneverbeenmorespoiltforchoice．Butjustwhenwethoughttraditionalsystemsofselectivefarminghadcreatedthemosttemptingarrayoffoodsmoneycanbuy，wearenowbeingpresentedwiththeprospectofgeneticallycreatedstrainsofcabbages，onion，tomato，potatoandapple．

Itmaynotticklethefancyoffoodpuristsbutitfirestheimaginationofscientists．LastweektheydiscoveredthattheclassicParisianmushroomcontainsjustthepropertiesthat，whengeneticallymixedwithawildstrainofmushroomfromtheSonoradesertinCalifornia，couldhelpitgrowenmassewhileatthesametimeprovidingitwiththeresilienceofthewildstrain．

66．______

“Wehavefoundawayofincreasingthesuccessratefromoneto90percent．”

Thisisjustoneofthemanyproductsthat，accordingtoskeptics，arecreatingagenerationof“Frankenfoods”．Thefirstsuchfoodthatmaybeconsumedonawidescaleisatomatowhichhasbeengeneticallymanipulatedsothatitdoesnotsoftenasitripens．

67．______

Criticssaythatthenewtomato—whichcost$25milliontoresearch—isdesignedtostayonsupermarketshelvesforlonger．Ithasaten-daylifespan．

Notsurprisingly，every-hungryUSisleadingthesearchfortheseforbiddenfruit．Bychangingthegenesofagrapefruit．agrowerfromTexashascreatedasweet，red，thin-skinnedgrapefruitexpectedtosellatapremiumoveritsCaliforniaandFloridacompetitors．

Forchipfanaticswhowanttowatchtheirwaist-lines，newhigh-starch，low-moisturepotatoesthatabsorblessfatwhenfriedhavebeencreated，thankstoagenefromintestinalbacteria．

Thescientistsbehindsuchnewfoodarguethatgeneticengineeringissimplyanextensionofanimalandplantbreedingmethodsandthatbybroadeningthescopeofthegeneticchangesthatcanbemade，sourcesoffoodareincreased.Accordingly，theyargue，thisdoesnotinherentlyleadtofoodsthatarelesssafethanthosedevelopedbyconventionaltechniques．Butifdesirablegenesareswappedirrespectiveofspeciesbarriers，couldthingsspiraloutofcontrol?“Knowledgeisnottoxic，”saidMarkCantley，headofthebiotechnologyunitattheOrganisationforEconomicCo-operationandDevelopment．“Ithasgivenusafargreaterunderstandingofhowlivingsystemsworkatamolecularlevelandthereisnoreasonforpeopletothinkthatscientistsandfarmersshouldusethatknowledgetodoriskythings．”

Clearly，financialincentiveliesbehindthedevelopmentofthesebigger，moreproductivefoods．Butwemayhaveonlyourselvestoblame．Intheearlyperiodofmassfoodcommerce，foodvarietiesweredevelopedbytraditionalmethodsofselectivebreedingtosuitthelocalpalate．Butassuppliersstartedtoselectandpreserveplantvariantsthathadlargerfruit，consumerexpectationsrose，leadingtothedevelopmentofthedesirableclones．Still，traditionalistsandgourmetsinEuropearefightingtheirdevelopment．

68．______

Eveninthepre-packagedUS．wheretheslow-softeningtomatowillsoonbereachingsupermarkets，1,500AmericanchefshavelenttheirsupporttothePureFoodCampaignwhichcallsfortheinternationalboycottofgeneticallyengineeredfoodsuntilmoreisknownabouttheconsequencesofthetechnologyandreliablecontrolshave

34.

"Itwaslikeofferingtodropasafeonmyheadtocuremyheadache"inthelastbutoneparagraphmeansthat______.

A.dietechnician'sproposalwouldmaketilingsevenworse

B.thetechnician'sproposalcouldeventuallysolvetheproblem

C.filesstoredonhercomputerwerelikeasafe

D.erasingtheentiresystemwaslikecuringaheadache

35.(72)

36.

Thegovernmentleviesdifferentkindsoftaxessothat______.

A.therichhavetopaymoreandthepoorless

B.awiderrangeoftaxpayerscanbeincluded

C.eachofthreelevelsofgovernmentcouldgettaxmoney

D.theburdenoftaxesfallsevenlyoneverybody

37.(70)

38.

TheNationalAssociationtoAdvanceFatAcceptanceholdsthat______.

A.fatpeopleshouldtrytoloseweight

B.eatinglessisharmfultopeople'shealth

C.fatpeoplewerebornthatway

D.obesityisgoodforpeople

39.TheVillageGreeninNewMilford,Connecticut,isasnapshotofNewEnglandcharm：acarefullymanicuredlawnflandedbyscrupulouslymaintainedcolonialhomes.Babysittersdandlekidsinthewoodengazebo,waitingforcommuterparentstoreturnfromNewYork.OnalazyafternoonlastweekCarolineNicholas,16,hadnothingmorepressingtodothandrinkintheearly-summersunshineanddiscusstherecenteventsintown.“Idon'tthinkalotofolderpeopleknewtherewereunhappykidsinNewMilford,”shesaid,“Icouldseeitcoming.”

Inafive-dayperiodinearlyJuneeightgirlswerebroughttoNewMilfordHospitalafterwhathospitalofficialscallsuicidalgestures.Thegirls,allbetween12and17,triedavarietyofmeasures,includingheavydosesofalcohol.over-the-countermedicinesandcutsorscratchestotheirwrists.Nonewassuccessful,andmostdidn'trequirehospitalization；butatleasttwoattempts,accordingtothehospital,couldhavebeenvital.Theirreasonsseemedasmundaneastheotherhappen-stancesofsuburbanlife.“Iwasjustsickofitall,”onetoldareporter,“Everythinginlife.”Mostalarming,emergency-roomdoctorFrederickLohsetoldalocalreporterthatseveralgirlssaidtheywerepartofasuicidepact.Thehospitallaterbackedawayfromthisremark.Butcominginthewakeofatleastsixteensuicideattemptsoverthepreviousfewmonths．thissuddencluster—alongwiththeinfluxofmedia—hassetthiswell-groomedsuburbof23,000onedge.AtatownmeetinglastWednesdaynight,DrSimonSobo,chiefofpsychiatryatthehospital,toldmorethan200parentsandkids,“We'retalkingaboutacrisisthathasreallygottenoutofhand.”Laterheadded,“TherehavebeenmoresuicideattemptsthisspringthanIhaveseeninthe13yearsIhavebeenhere.”

Sobosaidthatthegirlshetreateddidn'thaveseriousproblemsathomeorschool.“Manyofthesewerepopularkids,”hesaid,“Theygotplentyoflove,butbeneaththereassuringsigns,aswathofteensherearenotmakingit.”Somesaythatdrugs,bothpotand‘realdrugs’,arecommonplace.KidshaveshownupwithLIFESUCKSandLONGLIVEDEATHpennedontheirarms.Afewgirlscasuallydisplayscarsontheirarmswheretheycutthemselves.“You'dbesurprisedhowmanykidstrysuicide,”saidonegirl,17.“Youdon'twanttoputpainonotherpeople;youputitonyourself.”Shesaidsheusedtocutherself“justtoreleasethepain”.

Emily,15,afriendofthreeofthegirlstreatedin,June,saidonewashavingfamilyproblems,onewas“upsetthatday”andthethirdwas“justupsetwitheverythingelsegoingon”.Shesaidtheyweren'treallytryingtokillthemselves—theyjustneededconcern.AsSobonoted,“What'sgoingoninNewMilfordisnotuniquetoNewMilford.”Thesameunderlyingcultureofdespaircouldbefoundinanytown.Butteensuicide,headded,canbea“contagion”.RightnowNewMilfordhasthebug-andhasitbad.

Whatisthemainsubjectofthepassage?

A.EightgirlscommittedsuicideinNewMilford.

B.ThevillageGreenisnotacharmingplace.

C.Teenagersuicide.

D.Dr.SimonSobo'sachievements.

40.(76)

四、阅读理解(5题)41.

第

38

题

Theelectriccatfishhasadifferentelectricsysteminthat__________．

42.

第

32

题

Onthewaytoschool，Cosgrove_________．

43.

第

24

题

Privacystandardsmadebyindividualstatesareineffectivebecause__________．

44.

第

47

题

tellsthestoryaboutretrievingthelastoneoffourbrothersinthewar?__________

45.

第

32

题

Thegovernmentleviesdifferentkindsoftaxessothat__________．

参考答案

1.Management

2.D

3.Inakeg．

4.A

5.Aforeignaccent

6.B

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

8.B

9.C

10.B

11.A

12.A

13.A

14.Participationineconomy．

15.seeingtime

16.onon解析：“…的决定”英语表达为“decisiononsth.”这里介词需要用on。故答案为on。

17.accordingaccording解析：此句意为“…一项个性与社会心理学的六月杂志的研究。”显然，空处应填“根据”。

18.oftenoften解析：本句话的意思是“那些自我感觉很了不起、内心充满骄傲的人，总是不需要理由的就被人认为是趾高气扬的人。”故这里答案为often。

19.againstagainst解析：guardagainst意为“防止，防范，警惕”，为固定短语，against也可以省略。

20.WhenWhen解析：这里的一句话其实与下一半“whenwearedown-to-earth…．”所起到的作用是一样的，同时两者也是并列的，when表达了“当…”，所以这里填when。故答案为when。

21.pollpoll解析：此句意为“Synovate市场研发公司的调查显示”，poll的意思为“民意调查”。因此答案为“poll”。

22.WhenWhen解析：这里的一句话其实与下一半句“whenwearedown-to-earth，…”所起到的作用是一样的，同时两者也是并列的，when表达了“当…”，所以这里填when。故答案为when。

23.offoff解析：turnoff是“关掉”的意思，此题考查动词短语的用法，根据上下文语境，这里意思是“关掉你的手机”。所以用副词“off”。

24.reusereuse解析：由后一句“今天几乎每件东西都可以被扔掉。”可知，“…任何东西不再明智了。”中的空处应为“再利用”，这样前后两句逻辑上才能合理。

25