2022-2023年遼寧省遼陽市公共英語五級(筆試)真題(含答案)

2022-2023年遼寧省遼陽市公共英語五級(筆試)真題(含答案)學(xué)校:________班級:________姓名:________考號:________

一、1.ListeningComprehension(15題)1.聽力原文：M：DidyouhearabouttheaircrashthatoccurredinSouthAmericarecently?Itwasquiteatragicaccident!

W：No,Ididn'tseeanythinginthenewsaboutit．Whathappened?

M：AforeignairlinerwasattemptingtolandatnightinamountainousareainArgentinaandflewintoahill!

W：Thatsoundsreallyterrible!Didanyonesurvive?

M：No，everyoneaboard，includingthecrew，waskilledinstantly．

W：Whatwerethecircumstances?Weretheybadweather,afire,orenginefailure?

M：Apparently，thereweresomelowcloudsinthearea，butmostlyitwasjustmiscommunicationbetweenthepilotsandtheairtrafficcontrollers．

W：Weren'ttheybothspeakinginEnglish，theofficialinternationalaviationlanguage?

M：Yestheywere，butthetransitionfrompoorqualityradioswasslightlydistortedandtheaccentsoftheSpanishspeakingcontrollerswassostrongthatthepilotsmisunderstoodavitalinstruction．

W：Howcouldamisunderstandinglikethatcausesuchaseriousaccident?

M：Thepilotsweretoldtodescendto22,000feet．Theinstructionactuallymeant22,000feet，buttheythoughttheyhearddescend2,000feet．That'sahugedifference．a(chǎn)nditshouldhavebeenconfirmed．butitwasnot．Unfortunately，theterrainofthemountainsinNorweijaascendto2,000feet．

W：Sothepilotsdiddescendtothewrongaltitudethen，becausetheywerefollowingtheaircontroller'sinstructions．

M：Sadlyenough，yestheydid．Itwasareallybadmistake．Manypeoplediedasaresultofthesimplymisunderstanding．

W：Wow，that'sapowerfullessononhowimportantitcanbetoaccuratelycommunicatewitheachother．

Whatwasthecauseofthetragedy?

A.Badweather.

B.Humanerror.

C.Breakdownoftheengines.

D.Communicationssystemfailure.

2.AsimplediethighinvitaminsandsugarbutlowinfatandchemicalsbenefitsthosepeopleinHunza.

A.RightB.Wrong

3.Meatsalsocontainwater.

A.RightB.Wrong

4.PartA

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

聽力原文：Whenyoucloseyoureyesandtrytothinkoftheshapeofyourownbody，whatyouimagine(or，rather，whatyoufeel)isquitedifferentfromwhatyouseewhenyouopenyoureyesandlookinthemirror．Theimageyoufeelismuchvaguerthantheoneyousee．Andifyouliestill，itisquitehardtoimagineyourselfashavinganyparticularsizeorshape．

Whenyoumove，whenyoufeeltheweightofyourarmsandlegsandthenaturalresistanceoftheobjectsaroundyou，the“feltimage”ofyourselfstartstobecomeclearer．Itis，almostasifitwerecreatedbyyourownactionsandthesensationstheycause．

Theimageyoumakeforyourselfhasratherstrangeproportions：certainpartsfeelmuchlargerthantheylook．Ifyoupokeyourtongueintoaholeinoneofyourteeth，itfeelsenormous；youareoftensurprisedbyhowsmallitlookswhenyouinspectitinthemirror．

Butalthoughthe“feltimage”maynothavetheexactshapeyouseeinthemirror，itismuchmoreimportant．Itistheimagethroughwhichyourecognizeyourphysicalexistenceintheworld．Inspiteofitsstrangeproportions，itisallonepiece，andsinceithasaconsistentfightandleftandtopandbottom，itallowsyoutolocatenewsensationswhentheyoccur．Itallowsyoutofindyournoseinthedark，scratchitchesandpointtoapain．

Ifthefeltimageisdamagedforanyreason—ifitiscutinhalforlost．a(chǎn)sitoftenisaftercertainstrokeswhichwipeoutrecognitionofoneentireside—thesetasksbecomealmostimpossible．Whatismore．itbecomeshardtomakesenseofone'sownvisualappearance．Ifonehalfofthefeltimageiswipedoutorinjured，thepatientstopsrecognizingtheaffectedpartofhisbody．Itishardforhimtofindthelocationofsensationoilthatside．a(chǎn)nd．a(chǎn)lthoughhefeels：thedoctor'stouch，helocatesitasbeingontheundamagedside．

Heloseshisabilitytoaccepttheaffectedsideaspartofhisbodyevenwhenhecanseeit．Ifyouthrowhimapairofglovesandaskhimtoputthemon，hewillonlygloveonehandandleavetheotherbare．Andyethehadtousethelefthandinordertoglovethefight．Thefactthathecanseetheunglovedhanddoesn'tseemtohelphim，andthereisnoreasonwhyitshould．Hecannolongerreconcilewhatheseeswithwhathefeels：theunglovedobjectlyingontheleftmaylooklikeahand，but，sincethereisnofeltimagecorrespondingtoit，whyshouldheclaimtheobjectashis?

Mirrorimagesisoftendifferentfromthe"feltimages".

A.RightB.Wrong

5.HowdidEmilyDickinsondifferfromWaltWhitman?

A.Shepublishedpoemsfrequently.

B.Sheseldomlefthome.

C.Shelivedinanearlierera.

D.Shespokeadifferentlanguage.

6.Mr.Millerenjoysdoingthingswithhisownhands.

A.TrueB.Fasle

7.WangpreferstolivewithanEnglishfamily.

A.RightB.Wrong

8.HowmanypoemsdidDickinsonwrite?

A.Almost2,000.B.Nearly1,000.C.800D.1,200.

9.What'stheessentialpointweshouldrealizeaboutspeechandwriting?

10.Howlongdidittakeforchilipeppertobecomepopulararoundtheworld?

11.WhatwasthereunderarockonceatthesoutherntripofAfrica?

12.WhydidAmericanshavethesemovementsintheearly1960s?

13.HowmanypeopledependonlocalriceandfoodinSouthAsiacurrently?

A.Morethan150millionpeople.

B.Lessthan150millionpeople.

C.About100millionpeople.

D.About120millionpeople.

14.聽力原文：Todayit'smyturntogivetheweeklyoralpresentation,andthetopicthatProfessorMayhadassignedtomeis"thelifeofthepoet,EmilyDickinson".ComparedwithWaltWhitmanwhomwediscussedlastweek,IfoundEmilyDickinsonstrikinglydifferent.SheseemedinfacttobethecompleteoppositeofWhitmaninherlifeandinherwork.Iwouldliketosharebrieflywiththeclasssomeoftheessentialfactsofherbiography.EmilyDickinsonwasbornin1830inAmherst,Mass,barelyadecadeafterWhitman.Inherearly20'sforreasonswhichstillremainamysteryshebegantowithdrawfromherordinarycontactwiththeworld.Fortheremaining30yearsofherlifeshewasseldomseenoutsideherhome.InthisrespectshewasquiteunlikeWhitmanwholovedthegreatoutdoors.EmilyDickinsonspenthersolitarydayscorrespondingwithherfriendsandwritinghundredsofremarkablepoems,notably"Iheardaflybuzz"andthepoemwehavereadfortoday"I'mnobody".Althoughsheshowednoneofherpoemstoherfamilyandsentsomeofherletterstofriends,onlyfourwerepublishedinherlifetime.Mostofthem,almost1,200poemswerediscoveredinherroomaftershediedin1886.attheageof56.Thesepoemshaveestablishedherasamajorpoet,andseveralmodemcriticsconsiderherthegreatestwomanpoetintheEnglishlanguage.Eh,that'saboutallIhave.Isthereanyquestion?Ifnot,weshouldprobablybegintalkingaboutDickinson's"I'mnobody",thepoemProfessorMayassignedforthisweek'sclassdiscussion.

Whoisthespeaker?

A.Apoet.B.Ateacher.C.Astudent.D.Anartist.

15.Intermsofacademic1evels，inwhichleveldowefindthesmallestnumber?

二、2.UseofEnglish(10題)16.

【C11】

17.

【C19】

18.

【C18】

19.(44)

20.(43)

21.

【C16】

22.Impatiencecharacterizesyoungintellectualworkers.Theywanttomaketheirmark【C1】______.Soit'simportanttoget【C2】______totheminachallengingmannertheidea【C3】______bigachievementsrarelycomeeasilyandquickly.Pointoutthatthelittlesuccessesareessential.Showthatthey【C4】______turnbecomethefoundationon【C5】______reputationsarebuiltandfromwhichmoreimportanttaskscanbeaccomplished.

Avarietyofjobassignments,includingjoborprojectrotation,alsokeepajob【C6】______becomingdull.Whereasit'snaturalforsomeindividualstowanttomoveaheadimmediatelytomoredifficultassignments,【C7】______properguidancetheycancontinuetolearnandtogainversatilitybyworkingonanumberofjobsthatareessentially【C8】______thesamecomplexity.Thiswaytheygainbreadth,ifnotdepth.

Probablythegreatestoffensetoguard【C9】______whendealingwithyoungerspecialistsistorejectideasoutofhand.Youmustlisten--andlistenobjectively--totheirsuggestions.Avoid【C10】______overcritical.Youwanttonurtureaninquiringmindwithafreshapproach.You'llfrustrateitquicklyifyoureverttoooften【C11】______"We'vetriedthatbeforeanditwon't【C12】______here."

Onesurewaytodisenchant【C13】______collegegraduatesisflagrantlymisusingtheirtalents.Expectthemtodosomeroutinework,ofcourse.Butdon'tmaketheir【C14】______workjustonelongseriesoferrands.Thisincludessuchbreak-inassignments【C15】______performingroutinecalculations,diggingup【C16】______material,【C17】______operatingreproductionequipment.Onelargemanufacturingcompanyrecentlyinterviewedanumberof【C18】______engineerswhohadleftthem.Thecompanyfoundthattheoverwhelmingcomplaintwasthatthecompanynotonlydidnotofferworkthat【C19】______challengingbutalsoexpected【C20】______toolittlefromtheminthewayofperformance.

【C1】

23.

【C12】

24.(38)

25.

【C7】

三、3.ReadingComprehension(15題)26.(80)

27.

WhichofthefollowingisCORRECTaboutMickey,thegarbagecollector?

A.Hewrotealettertothecoupleafterwards.

B.Hefailedtocollectthemoneyfromthebank.

C.HewantedthecoupletosendhimaChristmascard.

D.Hecollectedboththecheekandthegarbagethatday.

28.(75)

29.(78)

30.

HowmanystateslevyimporttaxesintheU.S.A.?

A.4．B.50C.46D.54

31.

ItcanbeinferredfromthepassagethatthedifferencesbetweentheGlobalSupportCentreandthelocalre-pairshoplieinallthefollowingEXCEPT______.

A.efficiencyB.locationC.SetupCDsD.attitude

32.

______presentsthelargestandmostcompleteensembleoftraditionalarchitecture?

33.PartC

Directions:Answerquestions71-80byreferringtothefollowinggames.

Note:AnswereachquestionbychoosingA,BorCandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.

A=WashingtonD.C.B=NewYorkCityC=ChicagoD=LosAngelesWhichcity...

istheheadquarteroftheSupremeCourt?71.______

wasdiscoveredasearlyas1524?72.______

hasservedasthecapitalofthecountry?73.______

isnowthelargestindustrialcityinthecountry?74.______

leadsthecountryinthemanufactureofaircraftandspareparts?75.______

isthelargestcity?76.______

isthesecondlargestcityinpopulationinU.S.A.?77.______

hasbecomeoneoftheworld'sbusiestports?78.______

coversanareaofover69squaremiles?79.______

isnowconsideredthecenterofindustry,transportation,commerceandfinanceinthemid-westarea?80.______

A

WashingtonD.C.

Washington,thecapitaloftheUnitedStates,isinWashingtonD.C.andissituatedonthePotomacRiverbetweenthetwostatesofMarylandandVirginia.Thepopulationofthecityisabout800,000anditcoversanareaofover69squaremiles(including8squaremilesofwatersurface).ThesectionwasnamedtheDistrictofColumbiaafterChristopherColumbus,whodiscoveredthecontinent.ThecityitselfwasnamedWashingtonafterGeorgeWashington,thefirstpresidentofU.S.A.

Thebuildingofthecitywasaccomplishedin1800andsincethatyear,ithasservedasthecapitalofthecountry.ThomasJeffersonwasthefirstpresidentinauguratedthere.IntheWarof1812,theBritainarmyseizedthecity,burningtheWhiteHouseandmanyotherbuildings.

WashingtonistheheadquartersofallthebranchesoftheAmericanfederalsystem:Congress,theSupremeCourtandthePresidency.

Apartfromthegovernmentbuildings,therearealsosomeotherplacesofinterestsuchastheWashingtonMonument,theLincolnMemorial,theJeffersonMemorial,theLiteraryoftheCongressandMt.Vernon,homeofGeorgeWashington.

B

NewYorkCity

NewYorkCity,locatedinNewYorkState,isthelargestcityandthechiefportoftheUnitedStates.

ThecityofNewYorkhasapopulationofover7million(1970)andMetropolitan,12million.

Thecitywithitsgoodharborwasdiscoveredasearlyas1524,anditwasestablishedbyDutchwhonamedthecityNewAmsterdam.In1664,thecitywastakenbytheEnglishanditgotthenameNewYorkasitbearsnow.DuringtheAmericanRevolutionin1776,GeorgeWashingtonhadhishead-quartersforatimeinNewYorkCity.TheDeclarationofIndependencewasfirstreadthereinJuly4th,1776.Thecityremainedthenation'scapitaluntil1790.

NewYorkbecameanimportantportearlyinthelastcentury.AlargeportionofthenationalexportspassedthroughNewYorkHarbor.NewYorkhasbecomeoneoftheworld'sbusiestportsandalsothefinancial,manufacturing,andtravelcenterofthecountry.Someoftheplacesofinterestinthecityare:theStateofLiberty(152metershigh)whichwasgivenbytheFrenchpeopletotheAmericanpeopleasagiftin1877.ItwaserectedonLibertyIslandinthemiddleofNewYorkHarbor.Broadway,WallStreetandFifthAv

34.PartC

Directions:Answerquestions71-80byreferringtothefollowinggames.

Note:AnswereachquestionbychoosingA,BorCandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.

Answerquestions71～80byreferringtothefollowinggames.

Note：AnswereachquestionbychoosingA,B,CorD.Somechoicesmayberequiredmorethanonce.

A=HydropowerB=NuclearpowerC=SolarpowerD=Windpower

Whichpower(power's)…

A

Hydropower

Introduction

Wehaveusedrunningwaterasanenergysourceforthousandsofyears,mainlytogrindcom.

ThefirsthouseintheworldtobelitbyhydroelectricitywasCragsideHouse,inNorthumberland,England,in1878.In1882ontheFoxRiver,intheUSA,hydroelectricityproducedenoughpowertolighttwopapermillsandahouse.

Nowadaystherearemanyhydro-electricpowerstations,providingaround20%oftheworld'selectricity.Thenamecomesfrom“hydro”,theGreekwordforwater.

Howitworks

Adamisbuilttotrapwater,usuallyinavalleywherethereisanexistinglake.

Waterisallowedtoflowthroughtunnelsinthedam,toturnturbinesandthusdrivegenerators.

Advantages

Oncethedamisbuilt,theenergyisvirtuallyfree.

Nowasteorpollutionproduced.

Muchmorereliablethanwind,solarorwavepower.

Watercanbestoredabovethedamreadytocopewithpeaksindemand.

Hydro-electricpowerstationscanincreasetofullpowerveryquickly,unlikeotherpowerstations.

Disadvantages

Thedamsareveryexpensivetobuild.

Buildingalargedamwillfloodaverylargeareaupstream,causingproblemsforanimalsthatusedtolivethere.

Findingasuitablesitecanbedifficult--theimpactonresidentsandtheenvironmentmaybeunacceptable.

Waterqualityandquantitydownstreamcanbeaffected,whichcanhaveanimpactonplantlife.

Isitrenewable?

Hydro-electricpowerisrenewable.

TheSunprovidesthewaterbyevaporationfromthesea,andwillkeepondoingso.

B

Nuclearpower

Introduction

NuclearpowerisgeneratedusingUranium,whichisametalminedinvariouspartsoftheworld.

Thefirstlarge-scalenuclearpowerstationopenedatCalderHallinCambria,England,in1956.

Somemilitaryshipsandsubmarineshavenuclearpowerplantsforengines.

Howitworks

Nuclearpowerstationsworkinprettymuchthesamewayasfossilfuel-burningstations,exceptthata“chainreaction”insideanuclearreactormakestheheatinstead.

ThereactorusesUraniumrodsasfuel,andtheheatisgeneratedbynuclearfission.Neutronssmashintothenucleusoftheuraniumatoms,whichsplitroughlyinhalfandreleaseenergyintheform.ofheat.

Carbondioxidegasispumpedthroughthereactortotaketheheataway,andthehotgasthenheatswatertomakesteam.

Advantages

Nuclearpowercostsaboutthesameascoal,soit'snotexpensivetomake.

Doesnotproducesmokeorcarbondioxide,soitdoesnotcontributetothegreenhouseeffect.

Produceshugeamountsofenergyfromsmallamountsoffuel.

Producessmallamountsofwaste.

Disadvantages

Althoughnotmuchwasteisproduced,itisvery,verydangerous.

Itmustbesealedupandburiedformanyyearstoallowtheradioactivitytodieaway.

Nuclearpowerisreliable,butalotofmoneyhastobespentonsafety.

Isitrenewable?

Nuclearenergyfrom

35.

WhatdoestheauthorthinkofBotticelli'srepresentationskills?

A.Theyaretobefullyappreciated.

B.Theyevolvefromanuncertainsource.

C.Theyunderliehispersonality.

D.Theyconform.totheclassicalstyle.

36.PartC

Directions:Answerquestions71-80byreferringtothefollowinggames.

Note:AnswereachquestionbychoosingA,BorCandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.

A=BOOK1B=BOOK2C=BOOK3D=BOOK4

Whichbook(s)say(s)that...

theclimateaffectsthefuturesustainableagriculturaldevelopment?71.______

environmentalcontrolisrelatedwiththenationalrevenues?72.______

theenvironmentalproblemsarenotcausedovernight?73.______

avarietyofspeciesareonthedecrease?74.______

agricultureisalsoafactorforfiledegradationofenvironment?75.______

pollutioncanbecontrolledbyincreasingtheproductioncostofpollutinggoods?76.______

pollutioncontrolneedsthesupportoftechnologyandtechniques?77.______

provideslessonsforagriculture,trade,landuseandtaxpolicyfromaneconomicperspective?

78.______

thedegradationofenvironmentcausesthechangeofclimate?79.______

theapproachestoresearchshouldbeadjustedtothechangingsituation?80.______

A

BOOK1

Thebookoffersacomprehensiveperspectiveontheconsequencesandpossiblepolicysolutionsforclimaticchangeaswemoveintothetwenty-firstcentury.Itassessestheimpactofpotentialfeatureglobalclimatechangeonagricultureandtheneedtosustainagriculturalgrowthfortheeconomicdevelopment.

Thebookbeginsbyexaminingtheroleofinternationalresearchinstitutionsinovercomingenvironmentalconstraintsonsustainableagriculturalgrowthandeconomicdevelopment.Theauthorsthendiscusshowagriculturalresearchsystemsmayberestructuredtorespondtoglobalenvironmentalproblemssuchasclimatechangeandlossofgeneticdiversity.Thediscussionthenextendstoconsiderenvironmentalaccountingandindexing,toillustratehowenvironmentalqualityc;inbeincludedformallyinmeasuresofnationalincome,socialwelfareandsustainability.Thethirdpartofthebookfocusesontheeffectsofandpolicyresponsestoclimatechange.Chaptersinthispartexaminetheeffectofclimatechangeonproduction,trade,landusepatternsandlivelihoods.Theyconsiderimpactsonthedistributionofincomebetweendevelopedanddevelopingcountriesremainamajoreconomicactivity.Authorstakeonaneconomy-wideperspectivetodrawlessonsforagriculture,trade,landuseandtaxpolicy.

B

BOOK2

Theozonelayeristhreatenedbychemicalemissions;theclimateisendangeredfromfossilanddeforestation,andglobalbiodiversityisbeinglostbyreasonofthousandsofyearsofhabitatconversions.Globalenvironmentalproblemsariseoutoftheaccumulatedimpactsfrommanyyears'andmanycountries'economicdevelopment.Inordertoaddresstheseproblemsthestatesoftheworldmustcooperatetomanagetheirdevelopmentprocessestogether—thisiswhataninternationalenvironmentalagreementmustdo.Butcantheworld'scountriescooperatesuccessfullytomanageglobaldevelopment?Howshouldtheymanageit?Whoshouldpayfortheprocess,aswellasfortheunderlyingproblems?

Thisbookpresentsanexaminationofboththeproblemandtheprocessunderlyinginternationalenvironmentallawmaking:therecognitionofinternationalinterdependence,thenegotiationofinternationalagreementsandtheevolutionofinternationalresourcemanagement.Itexaminesthegeneralproblemofglobalresourcemanagementbymeansofgeneralprinciplesandcasestudiesandbylookingathowandwhyspecificnegotiationsandagreementshavefailedtoachievetheirtargets.

Thebookisdesigned

37.(74)

38.

Theauthorgaveanexampleinthethirdparagraphinorderto______.

A.emphasizetheneedtoplaceastrongervalueonnationalcooperation

B.explainwhytheAmericanideahasbeenbasedonindividualfreedom

C.illustratethefactthatAmericanswillnotsacrificetheirpersonalinterestforthegoodoftheentirecountry

D.supporttheideathatAmericansneedsthespiritofnationalcooperationtoachieveimportantnationalobjectivesinthe21stcentury

39.(70)

40.

WhatdoestheauthorsayabouttheordinarypeopleintheThirdWorldcountries?

A.Theyarebeginningtorealizetheimportanceofenvironmentalprotection.

B.Theybelievethatmanychildrenarenecessaryforprosperity.

C.Theyarereluctanttoacceptadvicefromthegovernment.

D.Theythinkthatearningalivingismoreimportantthannatureconservation.

四、閱讀理解(5題)41.

第

28

題

hasbecomeoneoftheworld’sbusiestports?__________

42.

第

50

題

5.__________

43.

根據(jù)下列選項(xiàng)回答46～50題：

第

46

題

1.__________

44.

第

48

題

3.__________

45.

第

49

題

enablesplayerstomakeuptheirownstories?__________

參考答案

1.B

2.B

3.A

4.A

5.B

6.A

7.A

8.A

9.Theyaredifferent

10.100years

11.Apostoffice

12.Tochallengeauthority．

13.A

14.C

15.Juniorcolleges/non-degreeprograms．

16.whichwhich解析：由此句句子成分分析，此空以后的應(yīng)為定語從句，修飾characteristics，所以此空應(yīng)填which，引導(dǎo)定語從句。

17.ageage解析：此段話均是在比較不同年齡段的人之間寫字的不同，故此空應(yīng)填“年齡”。

18.werewere解析：考查被動(dòng)語態(tài)的用法，注意分析句子成分。所以此處應(yīng)填“were”。

19.onon解析：“…的決定”英語表達(dá)為“decisiononsth．”這里介詞需要用on。故答案為on。

20.andand解析：“both…and…”為固定搭配，“兩者都”。所以此處應(yīng)填“and”。

21.referencereference解析：這三個(gè)分詞短語意為“執(zhí)行日常運(yùn)算、挖掘…材料、操作再生產(chǎn)設(shè)備”。顯然，“參考材料”最合適。

22.fastfast解析：由上一句句意“不耐心代表了年輕的腦力工作者們的特點(diǎn)。”可知，本句“他們想…成名”中的空處應(yīng)填“快速地”。

23.awareaware解析：beawareof，固定搭配，意為“意識(shí)到”。所以此處應(yīng)填“aware”。

24.ofof解析：beofthesame…意為“是一樣…”，此句意為“…在正確的指導(dǎo)下，他們能繼續(xù)學(xué)習(xí)，繼續(xù)通過干許多一樣復(fù)雜的工作而獲得多樣性?！?/p>

25.amongamong解析：此句意為“后一種觀點(diǎn)得到了許多支持者，尤其…教育家?！憋@然，空處應(yīng)填“在…中”，介詞among即有此意。

26.D解析：由D中的第三段“Inthesecondpart，thediscussionisextendedtoincludethepossibilitiesofpreventingorabatingemissionsinrelatio