2021-2022年四川省泸州市公共英语五级(笔试)真题一卷(含答案)

2021-2022年四川省泸州市公共英语五级(笔试)真题一卷(含答案)学校:________班级:________姓名:________考号:________

一、1.ListeningComprehension(15题)1.Accordingtothespeaker,whydopesticidesposeathreattoamphibians?

A.Pesticidescancauseanamphibian'sskintodryout.

B.Pesticideskilltheinsectsthatamphibiansdependonforfood.

C.Dissolvedpesticidescaneasilyenteramphibian'sbodies.

D.Amphibiansmayeatplantsthathavebeentreatedwithpesticides.

2.PartC

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

Younowhave1minutetoreadQuestions21-30.

听力原文：Thetenyearsofthe1960swasaperiodofprofoundchangeinmanypartsoftheworld．IntheUnitedStates，beginningwiththeCivilRightsMovementintheearly1960s，andextendingthroughtheVietnamWar，millionsofAmericansbegantochallengeestablishedauthority．Thesemovementswereinitiallypolitical．YoungAmericansdemandedthatgovernmentalpoliciesinracerelationsandinternationalrelationscorrespondtotheidealsofjusticecontainedintheDeclarationofIndependenceandtheConstitutionoftheUnitedStates．Bytheendofthedecade，however，challengestoauthoritywerecarriedfarbeyondpoliticalissuesandweredirectedatthesocialorderanddeeplyrootedculturalpatternsofthecountry．

Thegenerationthatcameofageinthe1960s，theBabyBoomgeneration，soughtchangeinalmosteveryaspectoflifeintheUnitedStates．Forexample，theyexperimentedwithcooperativeeconomicinstitutionsandcommunallivingarrangements，brokesexualtaboos，alteredtheprocessofeducation，explorednon-Westernspiritualtraditions，developedastrongrespectfortheenvironment，andtransformedpopularculture．Asawhole，thesechangesstoodforadifferentsetofculturalvaluesthatprovidedathoroughcritiqueofAmericansocietyasitexistedatthattime．Althoughmany“alternativelifestyles”wereshort-lived，culturalchangesthatbeganinthatperiodhavehadacontinuingeffectonmuchofAmericanlife，particularlyinattitudestowardmale-femalerelations．

Allculturesarecomplex．Theyareacombinationofcloselyrelatedpatternsofsocialinteraction．Asaresult，changesinanimportantaspectofaparticularculturewillusuallyproducechangesthroughoutthesociety．TheWomen'sMovementthatbeganintheUnitedStatesduringthe1960sisatypicalexampleofthisphenomenon．Fromthebeginning，theWomen'sMovementwasinfluencedbyculturalchangesthathadoccurredearlierinthedecade．TheCivilRightsMovementforracialequalityandthedevelopmentofthebirthcontrolpillwereparticularlyimportant—theCivilRightsMovementbecausewomeninvolvedintheeffortforracialjusticebegantoseethemselvesasvictimsofsocialinjustice，andthebirthcontrolpillbecauseitgavewomenreliablecontroloverreproduction．

Social，economic，andlegalequalityandreproductiverightscontinuetobethebasicprinciplesoftheWomen'sMovement．Assomeofthesegoalshavebeenachieved，majorchangeshaveoccurredinbroaderculturalpatternssuchastheeconomyandthefamily．Atthepresenttime，mostofAmericanwomenareemployed．Employmentisnolongerconfinedtosuchtraditionalfemaleoccupationsasteacher，nurse，orsecretary．Womenarenowfoundineveryoccupationandatalllevelsofresponsibilityandauthority．Participationintheeconomyhasgivenmanywomenanindependencethathasallowedthemtochoosewhether，when，andhowtoform.afamily．Workingwomenwithinfamiliesnowarepartofaneconomicpartnershipwithmeninwhichbothadultsprovidesupportforthefamilyunitandareresponsibleforthequalityoflife．

TheWomen'sMovementhasaffectedtherelationshipbetweenmenandwomeninthefamilyinotherwaysaswell．Womenhavechallengedtraditionalsexrolesinthehousehold．Menarenowexpectedtoparticipateinchild-raisinganddomesticactivitiestoamuchgreaterextentthaninthepast．Childbearingisnowamatteroffamilychoice，withwomenhavingthefinaldecisioninfamilyplanning．

Alloftheseculturalchangesarestrengthenedinboththemediaandintheeducationalsystem．Childrenaregrowingupwithself-imagesandexpectationsfar

3.Thepast-orientedpeopletendtolookattheworldina______．

4.PartA

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

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

Withagoodbookinourhandsweneedneverbelonely.Whetherthecharactersportrayedaretakenfromreallifeoraretotallyimaginarytheymaybecomeourcompanionsandfriends.Inthepagesofbookswecanwalkwiththewiseandthegoodofalllandsandalltimes.Thepeoplewemeetinbooksmaydelightuseitherbecausetheyresemblehumanfriendswhomweholddearorbecausetheypresentunfamiliartypeswhomwearegladtowelcomeasnewacquaintances.Ourhumanfriendssometimesmayboreus,butthefriendswemakeinbooksneedneverwearyuswiththeircompany.Byturningthepageswecandismissthemwithoutanyfearofhurtingtheirfeelings.Whenhumanfriendsdesertus,goodbooksarealwaysreadytogiveusfriendship,sympathy,andencouragement.

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

Agoodbookmaydrawourattentionsocompletelythatweforgetoursurroundingsandevenouridentityforthetimebeing.

A.TrueB.Fasle

5.听力原文：Inthefieldofmarketing，consumergoodsareclassedaccordingtothewayinwhichtheyarepurchased．Thetwomaincategoriesareconveniencegoodsandshoppinggoods．Twolessertypesarespecialtygoodsandunsoughtgoods．

Peopledonotspendmuchtimeshoppingforconvenienceitemssuchasgroceries，newspapers，toothpaste，razorblades，aspirin，andcandy．Thebuyingofconveniencegoodsmaybedoneroutinely，assomefamiliesbuygroceriesonceaweek．Suchregularlypurchaseditemsarecalledstaples．Sometimesconvenienceproductsareboughtonimpulse，forexample，someonehasasuddendesireforanicecreamsundaeonahotday．Ortheymaybepurchasedasemergencyitems．

Shoppinggoodsareitemsforwhichcustomerssearch．Theycompareprices，quality，andstyles，andmayvisitanumberofstoresbeforemakingdecisions．Buyinganautomobileisoftendonethisway．

Shoppinggoodsfallintotwoclasses：thosethatareperceivedasbasicallythesameandthosethatareregardedasdifferent．Itemsthatarelookeduponasbasicallythesameincludesuchthingsashomeappliances，televisionsets，andautomobiles．Havingdecidedonthemodeldesired，thecustomerisprimarilyinterestedingettingtheitematthemostfavorableprice．Itemsregardedasinherentlydifferentincludeclothing，furniture，anddishes．Quality，style.andfashionwilleithertakeprecedenceoverprice，ortheywillnotmatteratall．

Specialtygoodshavecharacteristicsthatimpelcustomerstomakespecialeffortstofindthem．Pricemaybenoconsiderationatall.Specialtygoodscanincludealmostanykindofproduct．Normally，specialtygoodshaveabrandnameorotherdistinguishingcharacteristics．

Unsoughtgoodsareitemsaconsumerdoesnotnecessarilywantorneedormaynotevenknowabout．Promotionoradvertisingbringssuchgoodstotheconsumer'sattention．Theproductcouldbesomethingnewonthemarketoritmaybeafairlystandardservice．suchaslifeinsurance．forwhichmostpeoplewillusuallynotbothershopping．

Accordingtothespeaker，whatareconveniencegoods?

A.Commoditiesthatpeopleareinconstantneedof．

B.Goodsthatareconvenienttouseorpurchase．

C.Itemsthatpeopletendtobuyunderimpulse．

D.Itemsthathavetobeboughtonceaweek．

6.Chainsdon'tproducetheirowncoursebookmaterial.

A.RightB.Wrong

7.Thepast-orientedpeopleareflexiblein______.

8.Youcanfindyournoseinthedarknessbecauseofyour"feltimage".

A.TrueB.Fasle

9.听力原文：TheUniedStatesofAmericaisafoundingmemberoftheInternationalFootballAssociation.In1913theAmericanFootballAssociationwasfoundedwithover7,000registeredclubsand1.4millionplayers.

InhistorytheU.S.teamenteredthefinalsoftheWorldCupfourtimesandgaineddiethirdplaceinthefirstWorldCup.Butsincethe4thWorldCupUSAhaspaidmoreattentiontotheOlympicGamesandAmericanfootball.

TheheadcoachoftheU.S.teamnowisfromYugoslavia,the57-year-oldcoachmovedtoMexicotwenty-oneyearsagoandlaterhebecametheheadcoachofMexico'sNationalTeam.Afterthatheleftforanevensmallercountry,CostaRica.Beforelong,hebecamewell-knownallovertheworld.

OnMarch7th,1991,hefacedthebiggestchallengeinallhislifetoleadtheU.S.team.TheAmericanFootballAssociationspentayearbuildingafootballfieldinCaliforniaforhim.Andintwoyears'timehisteamdefeatedtheteamsofIreland,EnglandandPortugal.

ThustheU.S.teamenteredwitheaseintothefinalsoftheWorldCup.Andasthehost,itenteredautomaticallyintothefirstcirclein1994.

WhenwastheAmericanFootballAssociationfounded?

A.In1913.B.In1930.C.In1914.D.In1917.

10.Whyarestudentsenthusiasticforpositionsinstudentorganizations?

A.Becausetheyhatetheconstantpressureandstrainoftheirstudy.

B.Becausetheywillthenbeabletostaylongerintheuniversity.

C.Becausesuchpositionshelpthemhuntbetterjobs.

D.Becausesuchpositionsareusuallywellpaid.

11.PaulcouldreachalltheswitchesbecausetheyWereoriginallyinstalledattherightheightofhim.

A.RightB.Wrong

12.Whatlessoncouldbedrawnfromtheaccident?

A.Accuratecommunicationisofutmostimportance.

B.Pilotsshouldbeabletospeakseveralforeignlanguages.

C.Aircontrollersshouldkeepaclosewatchontheweather.

D.Cooperationbetweenpilotsandaircontrollersisessential.

13.PartA

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

听力原文：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

14.Howlongdidittakeforchilipeppertobecomepopulararoundtheworld?

15.Accordingtoanotherexplanation，wheredidthisexpressionprobablycomefrom?

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

二、2.UseofEnglish(10题)16.(39)

17.(32)

18.(41)

19.RecentsurveysshowthatJapaneseyouthhavebecomea"MeGeneration"thatrejectstraditionalvalues.

"Around1980manyJapanese,【31】______youngpeopleabandonedthevaluesofeconomicsuccessandbegan【32】______fornewsetsofvaluesto【33】______themhappiness,"writessociologistYasuhiroinComparativeCivilizationsReview.Japaneseyouthareplacingmoreimportanceontheindividual'spursuitof【34】______andlessonthevaluesofwork,family,andsociety.

Japanesestudentsseemtobelosingpatiencewithwork,【35】______theircounterpartsintheUnitedStatesandKorea.Ina1993【36】______ofcollegestudentsinthethreecountries,only10%oftheJapaneseregarded【37】______asaprimaryvaluecomparedwith47%ofKoreanstudentsand27%ofAmericanstudents.Agreater【38】______ofJapaneseaged18—24alsopreferredeasyjobs【39】______heavyresponsibility.

TheyoungerJapaneseare.showinglessconcernforfamilyvaluesastheypursueaninnerworldofprivatesatisfaction.Datacollected【40】______theJapanesegovernmentin1993showsthatonly23%ofJapaneseyoutharethinkingaboutsupportingtheiragedparents,incontrast【41】______63%ofyoungAmericans.Itappearsthatmanyyounger-generationJapaneseare【42】______bothrespectfortheirparents【43】______asenseofresponsibilitytothefamily.AuthorYoshizakiattributesthechange【44】______Japaneseparents'over-indulgenceoftheirchildren,materialaffluence,andgrowing【45】______forprivatematters.

Theshift【46】______individualismamongJapaneseismostpronouncedamong【47】______veryyoung.

Accordingto1991data【48】______theBunkaCenterofJapan,50%ofJapaneseyouthaged16—19canbelabeled"self-centered"comparedwith33%among【49】______aged25-29.Toearntheself-centeredlabel,theyoungpeoplerespondedpositivelyto【50】______ideasas"Iwouldliketomakedecisionswithoutconsideringtraditionalvalues"and"Idon'twanttodoanythingIcan'tenjoydoing."

(31)

20.(37)

21.

【C3】

22.

【C20】

23.

【C5】

24.(50)

25.

【C6】

三、3.ReadingComprehension(15题)26.(68)

27.

______canpromotetourismdevelopment?

28.(67)

29.

Whichofthefollowingistrueaccordingtothetext?

A.Ashanthineedstoreceivegene-therapytreatmentconstantly.

B.Despitethehugefunding,generesearcheshaveshownfewpromises.

C.Therapeuticgenesarecarriedbyharmlessviruses.

D.Gene-dopingisencouragedbyworldagenciestohelpathletesgetbetterscores.

30.

Theeffectsofalmostuniversalemploymentwereoverwhelminginthat_______．

A.thehouseholdandvillagecommunitydisappearedcompletely

B.mennowtravelledenormousdistancestotheirplacesofwork

C.youngandoldpeoplebecamesuperfluouscomponentsofsociety

D.theworkstatusofthosenotinpaidemploymentsuffered

31.

Whycanmanypeoplesee“silverlinings”totheeconomicshowdown?

A.Theywouldbenefitincertainways．

B.Thestockmarketshowssignsofrecovery．

C.Suchaslowdownusuallyprecedesaboom．

D.Thepurchasingpowerwouldbeenhanced．

32.(69)

33.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

34.

Wecanlearnfromthetextthatartcriticshaveahistoryof______.

A.suppressingpainters'artinitiatives

B.favoringBotticelli'sbestpaintings

C.rejectingtraditionalartcharacteristics

D.undervaluingBotticelli'sachievements

35.(73)

36.

Whatdoestheunderlinedword"they"inParagraph2referto?

A.Creativeandcompetitiveinsuranceproducts.

B.Insurancecompanies.

C.Otheralternatives.

D.Investments.

37.(77)

38.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

39.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

40.

Whichofthefollowingistheauthor