2025屆山東省桓臺第一中學高三第三次模擬考試英語試卷含解析

2025屆山東省桓臺第一中學高三第三次模擬考試英語試卷請考生注意：1．請用2B鉛筆將選擇題答案涂填在答題紙相應(yīng)位置上，請用0．5毫米及以上黑色字跡的鋼筆或簽字筆將主觀題的答案寫在答題紙相應(yīng)的答題區(qū)內(nèi)。寫在試題卷、草稿紙上均無效。2．答題前，認真閱讀答題紙上的《注意事項》，按規(guī)定答題。第一部分（共20小題，每小題1.5分，滿分30分）1．—Catherine,willyouvisitusthisweekend?—Iplannedto,butsomethingunexpected.A．hascomeup B．wascomingupC．hadcomeup D．wouldcomeup2．TheJapanesepeoplekeepupcheerfulspirits________theworldthattheycangetoverthecrisiscausedbytheterribletsunami（海嘯）.A．beingconvinced B．convinced C．toconvince D．havingconvinced3．Thenewmovie________tobeoneofthebiggestmoney-makersofalltime.A．pretends B．a(chǎn)grees C．promises D．declines4．Peterson,agreatarchaeologist,said:“Archaeologistshavebeenextremelypatientbecausewewereledtobelievethattheministrywas________thisproblem,butwefeelthatwecan'twaitanylonger.”A．lookingout B．bringingout C．carryingout D．sortingout5．Someexpertsfearthattoo-early________tocomputerswillhaveharmfulconsequencesforchildren’sdevelopment.A．exposure B．extensionC．exhibition D．expansion6．August8th，2008isaspecialday，________________，Ithink，thatwillberememberedbytheChineseforever.A．one B．whatC．which D．theone7．Newly________chairmanoftheChineseBasketballAssociation,YaoMinghasputreformingthedomesticgame’smanagementatthetopofhisagenda.A．a(chǎn)ppointing B．a(chǎn)ppointedC．beingappointed D．havingappointed8．Wheneveryou________apresent,youshouldthinkaboutitfromthereceiver’spointofview.A．bought B．havebought C．willbuy D．buy9．_____annoystheteachermostisthatallthestudentsaretooquietinclass.A．WhatB．ThatC．WhenD．Who10．—Amazingly,I’vemanagedtostartmyownshoponline!—________Itoldyouitwaseasy.A．Thereyouare! B．Believeitornot.C．Howcome? D．Yougotmethere!11．Ateacher’sjobisnottotellthestudentswhattobelieveorvalue,butto________themtodevelopaworldviewforthemselves.A．urge B．equipC．persuade D．rank12．—Tom,doyouenjoyyourpresentjob?—________.Ijustdoitforaliving.A．OfcourseB．NotreallyC．NotlikelyD．That’sallright13．Hehaswrittentwoarticlesforthejournal，onetobepublishedinthisissue，theotherto___________inthenext.A．turnout B．comeoutC．bringout. D．leaveout14．_______youconsiderthattheairlinehandled80millionpassengerslastyear,theaccidentfiguresarereallyverysmall.A．UnlessB．WhenC．BeforeD．Though15．---Nowadays,buyersaccustomedtopricesmovingupwardjustadoptawait-and-seeattitude.---Iftheycontinueto_____,thenourcompanyisclosingdown.A．fishintheair B．sitonthefenceC．flyoffthehandle D．beataroundthebush16．WaterKnowsAnswersbyaJapaneseauthor,________into16languages,hasbecomeabest-sellerallovertheworld.A．havingtranslated B．tobetranslatedC．beingtranslated D．translated17．Itisafoolishactto________notesduringatestasyouwillbeseverelypunished.A．stickto B．referto C．keepto D．pointto18．—HowareyougettingalongwithyourGerman,Kate？—Oh,Mr．Black,I’msotiredofit．MaybeIshoulddropout_____itkillsme．A．when B．a(chǎn)fter C．while D．before19．Those

havesixormoreclosefriendsaredescribedas"veryhappy".A．whose B．whoC．which D．when20．Westronglyadviseyou______eatingyourmealsolate.It’snothealthy.A．on B．a(chǎn)gainst C．from D．over第二部分閱讀理解（滿分40分）閱讀下列短文，從每題所給的A、B、C、D四個選項中，選出最佳選項。21．（6分）ComeandspeakaweekwithusatGreenandGoldCampontheSacramentoCampus!Daysarefilledwithscavengerhunts,riverwalks,theChallengeCenter,wateractivities,artsandcrafts,gamesandmore!YouradventurebeginsatSacramentoState.AwesomeActivities:OrienteeringScavengerhuntRopescourseArtsandcraftsCookingoutdoorsCampusmuseumsFuninthesunRiverwalkFunandeducationalgamesLeavenotraceprinciplesSwimmingCampsDatesandDetailsWeek1:6/1/2017-6/5/2017Week2:6/7/2017-6/11/2017Week2:6/12/2017-6/16/2017Week4:6/19/2017-6/23/2017Week3:6/26/2017-6/30/2017Week6:7/10/2017-7/14/2017Howmuchdoesthiscampcost?Thiscampisonly$290foranentireweekofmemoriesandfriendshipsthatwilllastalifetime.Aminimumdepositof50%perchild,percampisrequiredforallregistrations(non-refundable).Fullpaymentisdue14dayspriortocampstart.Whendoesthecampbegin/end?Drop-offforGreenandGoldCampbeginseachmorningat8:00am.Campactivitiesbeginat8:30eachdayandendat5:00pm.Allchildrenmustbepickedupnolaterthan5:00pm.Latepick-upswillresultina$10fee.WhatdoesmychildneedtobringtothecampPeakAdventureswillprovideamorningandafternoonsnack,butyourchildneedstobringhis/herownbagluncheveryday.Wealsodowateractivities,sobesuretoincludeaswimsuitandatoweleachdaysotheycanparticipate.Wesuggestpackingthefollowingitemseachday:T-shirtShortsSweatshirtTennisshoesTowelSunscreenDaypackWaterbottleLunchSunglassesHat/VisorLipSwim-suitWatershoesCampmusthaveaminimumofsixcampersfortheprogramtorun.Noguarantees.Youwillreceiveafullrefundforanycancelledcamps.CALLUSAT916-278-6321FORMOREINFORMATIONANDTORESERVEYOURYOUTHCAMPSPOTTODAY.1、Whatwilllearnatthecamp?A．Holdingyourfootprints. B．Huntingforsmallanimals.C．Adventuringintheforest. D．Playinggamesintheriver.2、Ifyouarelatetofetchyourkidtwiceaweek,youhavetopay________.A．$155 B．$310 C．$145 D．$3003、Whatmustyoubringtojointhecamp?A．AT-shirtandasweatshirt.B．Tennisshoesandwatershoes.C．Aswimsuitandatowel.D．Sunscreenandsunglasses.22．（8分）“Iwishwehadn’tcomeonthistrip!”Jeff’svoiceechoedacrossthenarrowcanyon.Hisfatherstopped,breathingheavily.“thisishardonyou,butyou’vegottocomethroughwithcourage!”Hegentlyplacedhishandontheboy’sshoulder.“Now.Idon’tknowifIcanmakeitwithoutstoppingeverysooften.You’reyoung.butyouarestrongandfast.Doyourememberthewaybackfromheretotheroad,ifyouhadtogoalone?”JeffflashedbacktothepainfulsceneofMark,hisseventeen-year-oldbrotherattheircampsite.Hewasbittenbyasnakeyesterday.Thismorninghecouldn’tmove,andthepaingotworse.Heneededmedicalattentionrightaway.Theyhadlefttheirphoneinthecar,anditmusthavebeenoutofpowerbythen.LeavingMarkatthecampsiteandseekinghelpwastheironlychoice.“Jeff,couldyoudoit?”Jefflookedtotheendofthecanyon,severalmilesaway,Henoddedandaplanbegantotakeholdinhismind.“Whatisthenameofthatlittletownwestopped,Dad?”theremustbeahospitalthere.“Flint.WeparkedatthesideoftheroadafewmilesoutofFlint.”Jeffnodded.Thentheycontinuedclimbing.Stonebystone,theymadetheirwayupthecanyon.Gradually,Jeff’sfathergrewsmallerandsmallerinthedistance.Jeffwavedtohimandthenclimbedtowardtheroad.Twohourslater,hefinallyreachedtheroadandstruggledtowardthetown,almostexhausted.“Can’tstop,”hethough.Mark’sinbigtrouble.Keepgoing.”Suddenly,hesawatruckheadingtowardhim.“Hey,mister!”heshouted,wavingbotharms.Hebegantojogtowardthetruck,andthenbrokeintoafull-speedrun.Hischestwasburningwitheverybreathwhenthetruckdriverstoppedbyhim.Jeffexplainedbreathlessly.ThedriverreachedforhiscellphoneassoonasheheardaboutMark.“Bettergetthehelicopterinthere,”hesaidimmediately.ButJeffwasn’tsureaboutthatbecauseeverythinggotunclearandthenwentblackandquiet.Hourslater,Jeffopenedhiseyestofindhisfatheronachairnearby.“You’reahero,son,”hisfathersaidwithasmile.“YouhadthehelicoptersentintothecanyonafterMark.Ican’ttellyouhowhappyIwaswhenIsawitoverhead.Theygothimtothehospital.He’sgoingtobefinesoon.I’msoproudofyou!”1、WhydidJeffandhisfatherclimbupthecanyon?A．TheyweresearchingfortheircampsiteB．TheyweredoingphysicalexerciseC．TheyweremeetingJeff’sbrotherD．Theyweregoingforrescue2、WhathappenedtoMark?A．HelosthiswayB．HewasbittenbyasnakeC．HewashitbyatruckD．Helosthisphone3、WhydidJeff’sfatherlethimgoalone?A．JeffknewthewaybetterB．JeffwasfasterthanhimC．JeffneededmoreexerciseD．Jeffpreferredgoingbyhimself4、WhatcanbethebestwordstodescribeJeff?A．DeterminedandcaringB．CautiousandsensitiveC．HumorousandambitiousD．Generousandkind23．（8分）Thepalm-forward(掌心向外)"V"sign,formedbyraisingandspreadingthewristtwofingers,hasthreedifferentmeaningsinAmericanculture.Themostpopularmeaningofthe"V"signwasinventedin1941byaBelgian,VictorDeLavalaye.WantingasymbolforresistancetotheNazioccupation,hecameupwiththesingleletter"V",whichstoodnotonlyforhisownfirstname,butalsoforEnglishvictory,Flemishvirijheid,andFrenchvictoire.Thesymbolismofthesignspreadveryquickly,andWinstonChurchilluseditconstantlyinpublicappearance.Thusthroughoutthe1940sand1950s,thegesturemeantsimply"victory".Thesecondmeaningcameinthe1960s.Becauseofitsmilitaryimplication,Americanantiwarprotestorsusedthesignsarcastically(諷刺地)againstthearms,sothatitbecameknownasthe"peacesign".Inthe1970s,the"W'sign,whichhadlostitsmilitaryimplication,wasacommongreetingamongfreedomlovers,acidheads,politicalradicals,andultimately,youngpeopleingeneral.Sobyaboutthemiddleofthe1970s,itnolongergavecluetotheuser'sphilosophy.Thethirdmeaningistheoldestandleastcommon.Americanchildrenjokinglyput"V",whichresembles"horns",behindfriends-headsingroupsnapshot.TheyareunknowinglyreproducingsomethingthatsouthernEuropeanswouldfindhighlyoffensive.Thismischief,called"hornsoftheDevil",isavariantoftheEuropean"horns"gesture,whichisobscene（猥褻的).Herethe"w'signmeans"Yourwifehasbeencheatingonyouor,whenplacedbehindanother'shead,hiswifehasbeencheatingonhim."IntheUnitedStates,thegestureistypicallygivenwiththepalmfacingtheviewer.TheBritishuseboththisversionandanolder,palm-backwardversion;thelatterisobsceneinAmericanculture,andcorrespondstotheAmerican"finger".Churchillgotsomesurprisedstaresin1941when,evidentlyunawareofthemeanusage,hegavethepalm-backward"V"toBritishtroops.InEnglandtodayyoucouldhavetobeasocialhermitnottounderstandthedistinction.Astonishingly,however,MargaretThatcherrepeatedChurchill'serrorafterhervictoryinthe1979election.1、What'sthemostpopularmeaningofthe"V"sign?A．Victory, B．Peace.C．Cheat. D．Freedom.2、WhydidChurchillgetsomesurprisedstaresaccordingtothelastparagraph?A．Hewasproudofhistroops.B．Hehadwantedtobeahermit.C．Hewasn'tinsensibleofthemeanusageofthe"V"sign.D．HewantedtoshowcongratulationstoBritishtroops.3、Whatcanbelearnedfromthetext?A．The"V"signsimplymeansvictorysince1941.B．The"V"signmeaningpeacewasinventedbyaBelgian.C．ThatchermadethesameerrorasChurchillafterhersuccessfulelection.D．Americanantiwarprotestorsusedthesigntogreetamongfreedomlovers.4、Whatcanweconcludefromthepassage?A．It'snevertoooldtolearn.B．Thinkwellbeforeyouspeak.C．Actionsspeaklouderthanwords.D．Trytoknowculturediversityfullyandregionally.24．（8分）Threediversenteraholeleadingtoawater-filledcaveonMexico’sYucatanPeninsula.Theyswimforanhour.Finally,theyreachalargeroom60feetundergroundandaboutthesizeoftwobasketballcourts.Here,theydiscoveranupside-downhumanskull(thebonesofaperson’shead).Otherboneslaynearby.Theteamcameacrosstheskullin2007.ThediversthentoldtheMexicangovernmentaboutthefinding.Soonthegovernmentformedateamofscientiststolookintoit.Thegroup,whichincludedarchaeologist(考古學家)DominiqueRissolo,believedthattheskullbelongedtosomeonewholivedinthelasticeage.Attheiceage’sheightsometwentythousandyearsago,sealevelsdroppedandnewlandappeared.Overtime,rainandwindateholesintosomeoftheland.“Thepersonmayhavediedafterenteringthecave,”Rissolosays.Then,whentheiceageendedsometenthousandyearsago,sealevelsrose.Waterfloodedthecave,coveringtheremains.Worryingthatmovingtheskullmightdestroyit,scientistsdecidedtoexamineitatitswateryrestingplace.Theycollectedinformationabouttheskullandotherpiecesofbones.Theyfoundthatthebonesbelongedtoa15-to17-year-oldgirlwholivedatleasttwelvethousandyearsago.TheteamnamedherNaiaaftersomeseacreaturesinGreekmyths.Naiaistheoldestnearlycompletehumanskeleton(骨架)everfoundintheAmericas.DNAtestsshowedthatshe’sadirectancestorofpresent-dayNativeAmericans.Naia’sDNAalsomatcheswithpeoplenativetoSiberia,apartofRussia.ScientistshavelongthoughtthatancientpeoplefromthisareaarrivedinAlaskaduringthelasticeage.TheywerethefirsthumanstoliveintheAmericas.AndNaiaproveshowfarsouththeywent.(MexicoisacountrytothesouthoftheUS.)In2014thescientistsdecidedtobringupNaia’sskullfromthecavetoprotectitfromcuriousdivers.Soitwastakentoalab,whereitremainstoday.1、Whatdowelearnabouttheskull?A．Itwasleftaloneinthecave.B．Itlayunderabasketballcourt.C．Itdrewthegovernment’sattention.D．Itwasdiscoveredbythreescientists.2、WhendidNaiaprobablylive?A．Afterthelasticeageended.B．Beforethelasticeageended.C．Beforethelasticeagestarted.D．Atthebeginningofthelasticeage.3、Whywastheskullstudiedinthecaveforseveralyears?A．Scientiststriedtoprotectit.B．Thetemperaturewasfineinthere.C．Itwasagainstthelawtotakeitout.D．Itwouldhelpscientistsstudythecave,4、WhowereNaia’sdistantancestors?A．EarlyhumansinGreece.B．EarlyhumansinSiberia.C．EarlyhumansinAlaska.D．EarlyhumansinMexico.25．（10分）AllanGuei,18,wasastarbasketballplayeratComptonHighSchoolintheLosAngelesareabeforehegraduatedlastmonth.Hisgoodgradesmadehimeligibleforanunusualcompetition:Afree-throwcontestintheComptonHighgymnasium.Thetopprize:＄40,000inscholarshipmoney.Guei,whoseparentsimmigratedtotheUnitedStatesfromtheIvoryCoast,knewhowmuchthatfinancialaidcouldmeanforhisfamily.HewasalsofeelingafairshareofpressureasstudentsandteacherscrushedintothegymtowatchGueiandsevenotherrandomlycompeteagainsteachother.Gueiwonthefree-throwcontestbyonebasketandnettedthe＄40,000.Butit’swhathedidnextthat’strulyastonishing.IntheweeksfollowingtheMarchfree-throwcompetition,Gueilearnedthathe’dscoredafull-ridebasketballscholarshiptoCaliforniaStateUniversity---Northridge.NCAA(全國大學生體育協(xié)會)rulesallowedGueitoaccepttheathleticscholarshipandalsokeepmostofthe＄40,000hehadwon.ButGueicouldn’tstopthinkingabouttheseventalentedrunners-upfromthefree-throwcontest.They,too,haddreamsandveryrealneeds.So,heaskedPrincipalJesseJonestomakeasurpriseannouncementatComptonHigh’sgraduationceremony:Geuiwantedtodonatethe＄40,000totheothersevenstudents.“I’vealreadybeenblessedsomuchandIknowwe’relivingwithabadeconomy,soIknowthismoneycanreallyhelpmyclassmates,”Gueisaidinastatement.“Itwastherightdecision.”GueielaboratedonhisdecisiontogivethemoneyawayinaninterviewwithESPN(體育電視網(wǎng)):“Iwasalreadywelltakencareoftogotoschool,togotouniversityforfree...IfeltliketheyneededitmorethanIdid.”1、WhilestudyingatComptonHighSchoolintheLosAngelesarea,AllanGuei______.A．wasfamousintheUnitedStatesB．madegrown-upsfeelveryworriedC．tookpartinafree-throwcontestD．showedhisskillsinplayingbasketball2、Duringthefree-throwcontestintheComptonHighgymnasium,AllanGueifelt______.A．delightedB．stressedC．relaxedD．embarrassed3、Whatmadetheotherpeopleastonished?A．Gueicontributedhisprizetoothers.B．GueiwasthoughthighlyofbyJesse.C．Gueikeptmostofhisscholarship.D．Gueigainedabasketballscholarship.4、WhatGueisaidinaninterviewwithESPNinfersthat______.A．hisfamilywasverywealthyB．itwasveryhardforhimtomakemoneyC．hewasluckierthanotherstudentsD．hewasalwaysreadytohelpothers.5、Wherecanwemostprobablyreadthispassage?A．Inastorybook.B．Inanewspaper.C．Inasciencemagazine.D．Inanadvertisement.第三部分語言知識運用（共兩節(jié)）第一節(jié)（每小題1.5分，滿分30分）閱讀下面短文，從短文后各題所給的A、B、C和D四個選項中，選出可以填入空白處的最佳選項．26．（30分）EvenasIwritethisstory,Iamstillsmiling.Thepastfewweekshavebeenrather1,butwhenalargenumberofsmilecardsarrivedinmymailboxtheotherday,havingtraveledfromtheUnitedStatestomyhomeintheNetherlands,Iknewthingswereaboutto2I3wheretoleavethecards:thetrain,benchesatthestation,libraries,mailboxes—thepossibilitieswere4Iwokeup,wenttowork,and5,Iwenttotheshoptobuysomecandybars,6toleavethemasanonymous(匿名的)giftsforpeopleonthetrain7,mytrainhomewasextremely8andIcouldn’tfindaplacetoleavethegifts.Anelderlymanmusthave9mesearchingforaplacetoleavethem,becauseheaskedmeifIwas10something.RightthenI11thatmyfirstsmilecardwouldnotbeanonymous.Withabigsmile,ItoldhimthatIfoundwhatIwaslookingfor,12himthecandybarandacard.Hehadonlyjustfinishedreadingthecard13Iarrivedatmy14andgotoffthetrain,buthewasstillsmilingand15hiscandyasIwavedathimfromthe16Despitehavingworkedforafullday,I17bounced(跳)home.BeforeIenteredmy18,Ideliveredafewmoresmilecardsandcandybarstopeople’smailboxes.Iaddeda(n)19candybarforaneighborwhowasinadifficultfinancialsituation,butworkedhardeverydaytogettheverybestforhisyoungson.Ifiguredtheyboth20atastylittletreat.1、A．joyous B．simple C．tough D．colourful2、A．turnaway B．turnaround C．turnup D．turnin3、A．required B．realized C．declared D．wondered4、A．small B．important C．specific D．endless5、A．otherwise B．a(chǎn)fterwards C．instead D．sometimes6、A．stopping B．continuing C．a(chǎn)greeing D．planning7、A．However B．Besides C．Therefore D．Anyway8、A．special B．common C．crowded D．modern9、A．prevented B．seen C．heard D．left10、A．pickingup B．caringabout C．lookingfor D．referringto11、A．a(chǎn)dvised B．decided C．wished D．ordered12、A．buying B．posting C．sending D．handing13、A．when B．while C．until D．once14、A．hometown B．company C．country D．stop15、A．receiving B．enjoying C．finding D．dividing16、A．entrance B．office C．platform D．bench17、A．tiredly B．excitedly C．fortunately D．carefully18、A．a(chǎn)partment B．farm C．city D．classroom19、A．extra B．perfect C．typical D．ordinary20、A．rejected B．deserved C．a(chǎn)fforded D．forgot第二節(jié)（每小題1.5分，滿分15分）閱讀下面材料，在空白處填入1個適當?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）BeijingofChina,whichboastsepochal(戈!J時代的)inventionsinancienttimes,hasonceagainproveditsability1．(change)theworldwithits“NewFourGreatInventions”:high-speedrailways,electronicpayments,sharedbicyclesandonlineshopping.ThenewfourgreatinventionsareallrelatedtoChina’shigh-techinnovation,2．isdramaticallyimprovingthewell-being(福祉)ofallChinesepeople.Ourwalletsarenolongerinuse.Wecanbuyandeatwhateverwewant3．(simple)bytappingourcell-phones,andevenpancakesellersnowadaysareusingAlipay.Sharedbikes4．(them)arenotnew,buttheoperatingmodelofbike-sharing5．(base)onsatellitenavigationsystem,mobilepayment,bigdataandothertechnologies.Sharedbikesarebringingcyclingback6．people’slivesandtheyaremakingpublictransportmoreattractiveandconvenient,and7．(encourage)peopletobemoreactive.ItisincreasinglyclearthatChinaisinnovating(創(chuàng)新)andnolongercopyingwesternideas.ItisobviouslyclearthatChinaisleadinginmanywayssuchassocialmessagingappWeChat.Thisispartly8．ChinaskippedoverthePCera-andwentdirectlytomobile.Chinahasthelargestmobileuseintheworld.9．growingnumberofforeignershopetopromoteeconomic10．（develop）intheirhomecountriesbyhighlightingtheneedfortechnologicalachievementslikethatofChina.第四部分寫作（共兩節(jié)）第一節(jié)短文改錯（滿分10分）28．（10分）假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。錯誤僅涉及一個單詞的增加、刪除或修改。增加：在缺詞處加一個漏字符號（∧），并在其下面寫出該加的詞。刪除：把多余的詞用斜線（＼）劃掉。修改：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。注意：1.每處錯誤及其修改均限一詞;2.只允許修改10處，多者（從第11處起）不計分。Volunteertravel,thatisfamiliartoforeigners,hasnowadaysbecomemoreandmorepopularinChina.Youngtravelersvolunteertoworkforyouthhostelssothattheycaneatandlivethereforsomething.Atthesametime,theycanenjoythelocalsceneryontheirsparetime.AsfarasIamconcern,volunteertravelhassomeadvantagesandbenefitsfromyoualot.Itcansaveyoulotofmoneybyprovidingfreeaccommodations,whichmakesitpossibleforyoutotraveltomuchmoreplacesandexperiencedifferentcultures.Meanwhile,volunteertravelenrichyourlifebyofferdifferentjobsinyouthhostels,whichalsocanchangeyourwayoflife.Allinall,itwasmeaningful.第二節(jié)書面表達（滿分25分）29．（25分）假如你是紅星中學高三學生李華。你的筆友Chris對中國歷史文化很感興趣，他來信讓你介紹一項中國古代的偉大發(fā)明，請根據(jù)下面的要求給他寫一封回信，內(nèi)容包括：1.這項古代發(fā)明的名稱；2.概述這項古代發(fā)明；3.這項古代發(fā)明的影響。注意：1.詞數(shù)不少于50;2.開頭和結(jié)尾已給出，不計入總詞數(shù)