重庆市沙坪坝区第一中学2025-2026学年高三第二学期期末考试英语试题文试题含解析

重庆市沙坪坝区第一中学2025-2026学年高三第二学期期末考试英语试题文试题考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。第一部分（共20小题，每小题1.5分，满分30分）1．Afteralongabsence,Iwentbacktocollege,_______topickupwhereI’dleftoff.A．hoping B．hopeC．tohope D．hoped2．Lifethelike________ocean;Only________strong-willedcanreachtheothershore.A．an;the B．the;aC．the;/ D．/;a3．Mr.Zhanggavealltextbookstoallthepupils,except____________whohadalreadytakenthem.A．theseB．onesC．thoseD．theothers4．After________________asandstormwarningonSundayevening,meteorologistsforecastthatdustyweatherwillcontinueinpartsofthecountryonMonday.A．breakingoff B．callingoff C．leavingoff D．puttingoff5．Nobodycangobackandstartanewbeginning,______anyonecanstartnowandmakeanewending.A．forB．andC．butD．so6．Thenewsupermarkethasannouncedthatthefirsttopurchasegoodsontheopeningday________getabigprize.A．must B．couldC．would D．shall7．Youcanaskanyoneforhelp.________hereiswillingtolendyouahand.A．Everyone B．NooneC．One D．Someone8．Countrypeopledon'tpretendtohavetheseridiculousmannerswhicharenecessary_____wecallpolitesociety．A．what B．inwhatC．which D．inwhich9．语音知识(共5小题；每小题l分，满分5分)从A、B、C、D四个选项中，找出其划线部分与所给单词的划线部分读音相同的选项。并在答题卡上将该项涂黑。10．—ThankGodIpassedtheinterviewyesterday.Iwassweatingheavily.—Metoo.I________whenIwassittingoutsidewaiting.A．lookeddownmynose B．letmyhairdownC．hadbutterfliesinmystomach D．chancedmyarm11．AnewmovieSacrificecameoutlastyear,GeYouplayedadoctorsavedanorphanatthecostofhisownbaby.A．inwhich;who B．when;who C．onwhich;bywhom D．where;whom12．—Igotbeateninthefirstroundinthecontest.Iamfeelingdepressed.—Cheerup!Youhaveto________yourself________tohavethelastlaugh.A．open;upB．pick;upC．knock;upD．do;up13．Itcameasagreat________totheparentsthattheirsonfinallycamebacksafeandsound.A．relief B．senseC．relaxion D．favor14．Iftheythrowstonesatyou，don’tthrowback.Usethemtobuildyourownfoundation________.A．somehowB．anywayC．insteadD．nevertheless15．Thegirlissuretobecomeagoodactress__________shegetstherighttraining.A．until B．if C．although D．unless16．heremotion,sheburiedherfaceinherhands． A．Controlled B．Tocontrol C．Beingcontrolled D．Havingcontrolled17．Theflatisgoodvalueformoneybecausenotonlydidtheysellittomeatacheapprice,buttheythrewinsomeoldfurniture_________.A．attheircommand B．forgoodmeasureC．beyondmyreach D．beneaththeirdignity18．—IheardMr.Morganwouldbehereat4:00pm.nextThursday.—No,he_____atthattime.A．wasboardingB．wouldbeboardingC．willbeboardingD．isboarding19．---Butforyourtimelywarning,weintogreattrouble.---Well,youknowwe’refriends.A．wouldget B．musthavegot C．wouldhavegot D．can’thavegot20．Ascientist’sattempttoproducetheworld’sfirstgene-editedbabies_____areimmunetoHIVhassparkedcontroversyinacademiaandthepublic.A．as B．whoC．whom D．whose第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21．（6分）Whatwillpoweryourhouseinthefuture?Nuclearwindorsolarpower?AccordingtoscientistsattheMassachusettsInstituteofTechnology(MIT)intheUS,itmightbeartificialleaves.Naturalleavesareabletochangesunlightandwaterintoenergy.Itisknownas

photosynthesis

(光合作用).Nowresearchershavefoundawaytoimitatethisprocess.TheartificialleafdevelopedbyDanielNoceraandhiscolleaguesatMITcanbeseenasaspecial

siliconchipwith

catalysts(催化剂).Similartonaturalleaves,itcansplitwaterintohydrogen

andoxygenwhenputintoabucketofwater.Thehydrogenandoxygengasesarethenstoredinafuel

cell

(电池),usingthosetwomaterialstoproduceelectricity,locatedeitherontopofahouseorbesidethehouse.Thoughtheleafisonlyabouttheshapeofapokercard,scientistsclaimedthatitispromisingtobean

inexpensivesourceofelectricityindevelopingcountries.“OnecanimaginevillagesinIndiaandAfricanotlongfromnowpurchasinganaffordablebasicpowersystembasedonthistechnology”saidanAmericanscientist,Nocera.Anartificialleafisnotanewidea.Thefirstartificialleafwasinventedin1997butwastooexpensive

andunstableforpracticaluse.Thenewleaf,however,ismadeofcheapmaterials,easytouseandhighlystable.Inlaboratorystudies,Nocerashowedthatanartificialleafcouldoperate

continuouslyforatleast45hours.ThewonderfulimprovementscomefromNocera’srecentdiscoveryofseveralpowerfulnew,

inexpensivecatalysts.Thesecatalystsmaketheenergy

transformationinsidetheleafmore

efficientwithwaterandsunlight.Rightnowthenewleafisabout10timesmoreeffectiveatcarryingoutphotosynthesisthananaturalone.Besides,thedevicecanruninwhateverwaterisavailable.

Thisisimportantforsomecountriesthatdon’thaveaccesstopurewater.Hopefully,eachhomecouldhaveaccesstothenewapplicationinthefuture.1、Thepurposeofthisarticleisto________.A．introduceanewkindofdeviceB．askpeopletodotheresearchC．advertisethenewproductD．showtheprocessofphotosynthesis2、WhichofthefollowingisNOTtheadvantagesofthenewleaf?A．It’slowincost.B．It’ssmallinsize.C．Ithasawonderfulfuelcell.D．It’sconvenientforpeopletouse.3、Whatconclusioncanbedrawnfromthetext?A．Nocerathoughtthenewleafisexpensivefordevelopingcountries.B．VillagesinAfricahavebenefitedalotfromthenewinvention.C．Siliconchipcanhelpthenewleafworkmoreeffectively.D．Theequipmentdoesn’tnecessarilyoperateinpurewater.4、What’sthewriter’sattitudetowardsthenewdevice?A．Negative.B．Optimistic.C．Doubtful.D．Uncertain.5、Accordingtothetext,whatwilltakeplaceinthefuture?A．Naturalleaveswilltaketheplaceofartificialleaves.B．Scientistswilldevelopmorewaystoproduceenergy.C．Thenewinventioncouldbewidelyusedinthefuture.D．Developingcountrieswillcontributemoretotheresearch.22．（8分）Babies’mainfoodisricecereal.Butitisoftenpoisoned.Studieshavefoundthatmanybrandscontainmeasurableamountsofinorganicarsenic(无机砷),themostpoisonouskind.It'snotjustnice:anAugust2018studytested50foodsmadeforbabies.includingorganicandnonorganicbrandssuchasGerber,EarthsBest,andotherpopularlabels,andfoundevidenceofatleastonedangerousheavymetalineveryproduct.Fifteenofthe50containedenoughcontaminants(污染物)toposepotentialhealthriskstoachildeatingoneservingorlessaday.Heavymetalscandamagecognitive(认知的)developmentinchildren,whoareespeciallyatriskbecauseoftheirsmallersize.InorganicarsenicindrinkingwaterhasbeenfoundtolowertheIQscoresofchildrenbyfivetosixills.Andasheavymetalsaccumulateinthebodyovertime.theycanraisetheriskofcancer,diabetesandotherphysicalconditions.Ofcourse,findingyou’reyourfavoritebrandiscontaminatedisnotareasontopanic.Lowlevelsofexposureforshortperiodsareunlikelytocauseseriouseffects,butparentsshouldfocusonreducingtheoveralllevelsofthesepoisonoussubstancesintheirchildren'stotaldiettolimitharm.HeavymetalsoccurnaturallyonEarthandarepresentinsoilandwater.Butpesticides(杀虫剂),miningandpollutionincreasetheirconcentrations,andfarmingandfoodmanufacturingprocessescancontributeevenmore.Foodmakersareclearlyofkeepingbabyfoodpoison-free:roughlyathirdofthetestedproductsdidnotcontainworrisomemetallevels.Somecompaniesarealreadytryingtolookintothesourcesofcontaminationintheirproductsandtrytoreducethem.Morecompaniesshouldfollow.Butthebestchanceofrealchangewillcomewithlaws.CurrentlytherearenoU.Srulesonacceptablelevelsofheavymetalsinbabyfoods.Thegovernmentandthefoodindustryshouldunitetodealwiththeseriousthreattoourchildren.1、WhatdidtheAugust2018studyfind?A．Fifteenofthe50foodbrandscontainedcontaminantsB．Allorganicfoodbrandscontainedsomeinorganicarsenic.C．Earth’sBestprovedtobeapoison-freebabyfoodbrand.D．Alltestedproductswerecontaminatedwithheavymetals.2、Accordingtothesecondparagraph,inorganicarsenicindrinkingwaterhasabadeffectonchildren's_____A．intelligenceB．behaviorC．sightD．emotion3、Inthefourthparagraph,thewriterindicatesthat_____A．foodstorageisamajorsourceofmetalcontaminationinthefoodproductsB．manyfoodmakershaven'ttakenenoughsafetystepstoreducemetallevelsC．foodmakersshouldfigureoutthesourcesofcontaminationintheirproductsD．foodcompaniesmustbebannedfromproducingfoodscontainingheavymetals4、Accordingtothewriter,whichofthefollowingisthevitalsteptomakearealdifferencetotheworryingsituation?A．Steppingupbabyfoodtests.B．ListingharmfulheavymetalsC．MakingoutrelevantregulationsD．Punishingfoodlawbreakers.23．（8分）Thelightfromthecampfirebrightenedthedarkness,butitcouldnotpreventthedampcoldofDennis’sSwamp(沼泽地)creepingintotheirbones.Itwasastrangeplace.MartinandTomwishedthattheyhadnotacceptedJack’sdare.Theylikedcamping,butnotnearthisswamp.“So,”Martinaskedastheysatwatchingthehotcoals.“Howdidthisplacegetitsname?”“Areyousureyouwanttohearit?It’sascarystory,”warnedJack.“Ofcourse!”criedoutTom.“Iftherewereanythingtobescaredof,youwouldn’thavechosenthisplace!”“Ok,butdon’tsayIdidn’twarnyou,”saidJack,andhebeganthistale.“Waybackintime,amancalledDennistriedtostartafarmhere.Hebuiltthatcottageovertheretolivein.Inthosedays,thearealookedquitedifferent—itwascoveredwithtalltreesandtheswampwasacrystal-clearriver.Afterthreehardyears,Dennishadclearedseveralfieldsandplantedcrops.Hewassoproudofhissuccessthatherefusedtolistentoadvice.“‘Youareclearingtoomuchland,’warnedoneoldman.‘Thelandisalivingthing.Itwillhitbackatyouifyouabuseit.’”“‘Sillyfool,’saidDennistohimself.‘IfIclearmoreland,Icangrowmorecrops.I’llbecomewealthier.He’sjustjealous!’”“Denniscontinuedtochopdowntrees.Smallanimalsthatreliedonthemforfoodandshelterweredestroyed.Hewassoeagertoexpandhisfarmthathedidnotnoticetheriverflowingslowlytowardshisdoor.Hedidnotnoticesaltseepingtothesurfaceoftheland.Hedidnotnoticeswampplantschokingallthenativeplants.”“Whathappened?”Martinasked.Itwasgrowingcolder.Hetrembled,twistinghisbodyclosertothefire.“Thelandhitback—justastheoldmanwarned,”Jackshrugged.“Dennisdisappeared.Oldfolksaroundherebelievethatswampplantsmovedupfromtheriveranddraggedhimunderwater.Hisbodywasneverfound.”“Whatastupidstory,”laughedTom.“Plantscan’t…”Beforehehadfinishedspeaking,hescreamedandfainted(晕倒).Theothertwoboysjumpedupwithfright,staringatTom.Suddenly,theyburstoutlaughing.Somegreenswampivy(常春藤)hadcoveredTom’sface.ItwasawhilebeforeTomcouldappreciatethejoke.1、Theunderlinedword“dare”inParagraph1isclosedinmeaningto________.A．courage B．assistance C．instruction D．challenge2、WhydidJacktellTomandMartinthestory?A．Tofrightenthem.B．Tosatisfytheircuriosity.C．Towarnthemofthedangeroftheplace.D．Topersuadethemtocampintheswamp.3、WhydidDennisignorethewarningoftheoldman?A．Theoldmanenviedhim.B．TheoldmanwasfoolishC．Hewastoobusytolistentoothers.D．Hewasgreedyformorecrops.4、WhydidTomscreamandfaint?A．HesawDennis’sshadow.B．Hewasscaredbyaplant.C．Hisfriendsplayedajokeonhim.D．Theweatherbecameextremelycold.5、WhatlessoncanwelearnfromthestoryofDennis?A．Graspall,loseall.B．Nosweat,nosweet.C．Itisnousecryingoverspiltmilk.D．Hewhomakesnomistakesmakesnothing.24．（8分）Ifitweren'tforthementor（导师），RebeccaCruziscertainthatshewouldn'thavegottenherbachelor'sdegree．Ms．Cruzwentthroughatroublingtimeduringhersecondyearincommunitycollege．Shedidn'tfeelmuchsupportathome．Strugglingontheedgeofstoppinghereducation，Cruzturnedtohermentor，AlexLopez．"Heputmeintherightdirection，"Cruzrecalls．GiselaBusheyisanotherwomanwhounderstandstheimportanceofmentors，andshehopestofindanAlexforeveryRebecca．SoshedesignedCriticalBridge，whichprovidesthemwithmentorship．AndinOctober，CriticalBridgewasnamedarecipientofthe﹩50，000EncorePrize，whichisawardedbyEncore．org，apartnerorganizationthataimstousethetalentsofthoseaged50orolder．Aspartoftheprize，Encore．orgwillprovidementorsforCriticalBridge．ThementorswillworkwithyouthsthroughouttheirparticipationinthetwoprogramsconnectedtoCriticalBridge．Morethan10，000peopleintheUnitedStatesareretiringeveryday，accordingtoPhyllisMoen，asociologyprofessor．ManyoftheseAmericanshaveexpressedadesiretogivebacktotheircommunities．"Theywanttodosomethingmeaningful．Andthere'snothingmoremeaningfulthanmentoringacrossgenerations，"ProfessorMoensays．DimaKhouryhasmentoredyoungpeoplethroughouthercareer．Sheseesmentorshipasapersonalrelationship．"Takethetimetogettoknoweachother，"Ms．Khourysays．"Ifyoutakethetimetobuildtrustatthebeginning，itwillbemucheasiertobuildahealthyrelationshipafterthat，andmorebeneficial．"Speakingfromexperience，shesaysmentorsmightnotalwayshavetheanswers，butbeingalistenerisjustasimportant．"Ithinkwhathelpsissomethingaskingtherightquestionandlettingthemthinkaboutit，"shesays．"Itbenefitscriticalthinking．"Cruz，nowaSanFranciscoStategraduate，hasbecomeamentortoo．"Sometimesweareinaconditionwherewedon'thavepeopletogoto；youmightnotmakeitoutfromthatsamecyclewithoutthehelpofanyhumanguide，"shesays．Butbyprovidingmentorshipandresources，Cruzhopesthatifsuchatimecomes，studentswill"makethedecisiontopushforwardasopposedtogivingup．"1、WhatcanbeknownaboutRebeccaCruz？A．Shewasstronglysupportedbyherfamily．B．Shefailedtogetherbachelor'sdegree．C．Shegaveuphercollegeeducation．D．Shewashelpedbyhermentor．2、WhatdoweknowaboutCriticalBridge？A．Itoffersstudentsmentorship．B．Itgivesmentorsprizesyearly．C．ItwasfoundedbyAlexLopez．D．Itisatalentsearchorganization．3、WhatdoesDimaKhourythinkofmentorship？A．Itrequiresrichexperience．B．Ittakesalongtimetobuild．C．Itisthebestjobchanceforretiredpeople．D．Itinvolvesagoodunderstandingbetweenpeople．4、WhatisRebeccaCruz'sfuturewish？A．Toprovidestudentswithsupport．B．Toguidestudentsthroughtheirstudy．C．Tobuildahealthyrelationshipwithothers．D．Togetadvancedtraininginmentorshipskills．25．（10分）It'shair-raisingnewsforcriminalsontherun.Scientistsbehindanewstudyhaveworkedouthowtoidentifyindividualsonlybasedontheproteins(蛋白质)inasinglestrandoftheirhair.WhilethepolicealreadylookatDNAfromhairaspartofinvestigations,thetechniqueisfarfromideal:DNAiseasilydegradable,meaningitcanonlybeanalyzedwithinacertaintimeperiodafterthecrime.Butthenewtechniquecouldevenbeusedtosolvehistoricalorarchaeologicalcases,makingitfarsuperiortoDNAsequencinginmanyways.DNAdegradationdependsonseveralenvironmentalfactorsincludingtemperature,humidityandPH.Itisalsoaffectedbytheactivityofbacteriaandothermicroorganisms.Incontrast,actualhairscansurviveforalongtime-----sometimescenturies.Afterbonesandteeth,hairisinfactoneofthemostresistantstructuresofthehumanbody.Inordertounderstandhowtheproteincanbeusedtoidentifyindividuals,itisimportanttounderstandmatproteinsarecodedbyDNA．Thismeansthatacertainlevelofthegeneticvariationthatweseeindifferentpeople'sDNApassesintotheirproteins.Infact,geneticinformationintheDNAistranslatedintoamino-acidchainsthatmakeupproteins.Themethodnotonlyallowsforhumanidentificationbutitcanalsorevealhowoldthesampleisandwhatregionitcomesfrom,sothatwecandistinguishbetweencurrentandancientsamples.Butwhilethediscoveryisexciting,thetechniqueisnotquitepolishedenoughtobeusedinthecourtroom.Themaintasknowwillbetoanalyzehairsamplesfromallovertheworld,whichwillmakeitalotmorereliable.Thenewdiscoverywillboostthesignificanceofhairasevidenceincourts,atatimewhensomeforensic(司法鉴定的)disciplineshavebeencriticizedintheUS.Itwillalsobeofgreatuseinarchaeology.1、What'sthemainideaofthepassage?A．DNAevidenceisfarfromideal.B．Criminalsontherungethair-raisingnews.C．Scientistsareplanningatestofhumanhair.D．Humanscanbeidentifiedbyproteinsinhair.2、Whichevidenceismorereliableforthepolicetoidentifyacriminal?A．Lostteeth.B．Thefootprint.C．Personalbelongings.D．DamagedDNA．3、InwhatwayisthenewtechniquesuperiortoDNAtest?A．Servingasevidenceincourts.B．Possessinggeneticinformation.C．Inferringtheheightofaperson.D．Distinguishingtheregionofaperson.4、Whatwillscientistsdointhefollowingfewyears?A．Testhairsamplesworldwide.B．Legalizethehairevidence.C．Applyprotein-testtoarchaeology.D．MapthestructureofDNA．5、Whowillwelcomethediscovery?A．Criminals.B．Employers.C．Hairdressers.D．Archaeologists.第三部分语言知识运用（共两节）第一节（每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项．26．（30分）IhadstoppedtogetgasataplacewhereIalmostnevergo.Ihad1aboutcleaningmywindshield(挡风玻璃).Butthenwhenthegas2wasalmostfinished,Idecidedforsomereasonto3andcleanit.That'swhatIwasdoingwhenawomanapproachedmeandaskedfor4.Thereweretwowomen,onemiddleaged,theothertwenty-something，5ayoungchildinthebackseat.Onadaywhenthetemperaturewaswellpast100,theywere6inanoldcarwithnoairconditioning,drivingfromatownaboutanhouraway."CanyoutellushowtogettoMopac,sir?"Shehadafolded-upprintoutofdirectionsfromGooglemaps."Sure.WhereonMopacareyou7？"Iasked.Sheunfoldedtheprintoutandshowedmethe8.Iknewitwell,andstartedtogetthe9thatthismomentwasmeanttohappen."Iknow10wherethatis."Itoldher."Iusedtohavea(n)11inthatbuildingtoworkin."I12givingdirectionstotheolderlady,andthenagaintoher13,whowasthedriver.Ittookawhile,becauseI14eachinstructiontomakesuretheyunderstood.Inasinceremomentof15,theolderladythankedme.Thewhole16helpedmemuchmorethanithelpedher.Ihadbeenhavingavery17day.Infact,theonlyreasonIhadgonetothatparticulargasstationwasthatIwantedtotakealittledriveand18myhead.AsIreplacedthegascap,havingsentthemontheirway,Isuddenly19thatIfeltbetter.Myheadwasclear.AndIam20fortherealgoodnessitbroughtintomylife.1、A．cared B．hesitated C．worried D．complained2、A．making B．leaking C．burning D．pumping3、A．goahead B．giveup C．setoff D．hurryup4、A．gas B．coins C．directions D．food5、A．upon B．with C．except D．beyond6、A．starving B．sheltering C．traveling D．hiding7、A．lost B．arranged C．located D．headed8、A．distance B．line C．sign D．address9、A．feeling B．evidence C．reward D．pleasure10、A．generally B．exactly C．wholly D．personally11、A．destination B．field C．office D．apartment12、A．thoughtof B．putoff C．turnedto D．endedup13、A．companion B．passenger C．helper D．colleague14、A．explained B．repeated C．demonstrated D．recalled15、A．silence B．coldness C．appreciation D．embarrassment16、A．situation B．accident C．conversation D．incident17、A．meaningful B．fortunate C．important D．difficult18、A．clear. B．empty C．cover D．turn19、A．understood B．realized C．acknowledged D．assume20、A．anxious. B．fit C．ready D．grateful第二节（每小题1.5分，满分15分）阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。27．（15分）Will1．matterifyoudon'ttakeyourbreakfast?Recentlyatest2．(give)intheUnitedSatesThosetestedincludedpeopleofdifferent3．from2to4．Duringtheexperiment,thesepeopleweregivenallkindsofbreakfasts,andsometimestheygot5．breakfastatallSpecialtestsweresetuptosee6．welltheirbodiesworkedandwhentheyhadeaten7．certainkindofbreakfastTheresultsshowthatifapersoneatsaproperbreakfast,heorshewillworkwithbettereffect8．ifheorshehasnobreakfastThisfactappearstobe9．(especial)trueifapersonworks10．hisbrainsForexample,ifastudenteatsfruit,eggs,breadandmilkbeforegoingtoschool,hewilllearnmorequicklyandlistenwith11．(much)attentioninclass第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）假定英语课上老师要求同桌之间交换修改作文，请您修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。删除：把多余的词用斜钱（\）划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1、每处错误及其修改均仅限一词；2、只允许修改10处，多者（从第11处起）不计分。Everyonehastomakechoicesinhislife、ImadeonewhoIwillneverregret、WhenIenteredseniorhighschool,Iwantedtojoinintheschoolbasketballteam、Somyparentsdidn’tagree,sayitwouldgetinthewayofmystudies、SoItriedtopersuadehimandpromiseI’dmakeabalancebetweenthem、Finallytheyagreed、Late,IdidthatIhadpromised、Ibecamecaptainofteamandalsooneofthetopstudentofmyclass、Ilearnfromthisexperiencethatonceyouhavemadeachoice,sticktoitandworkhardatit,andthenyou’llneverregretit、125第二节书面表达（满分25分）29．（25分）假设你是李华，你讲参加主题为“GlobalWaterShortage”的英语演讲比赛。请写一份演讲稿，主要内容如下：1.全球水资源短缺情况严峻；2.水资源短缺的原因（环境污染、人口增长等）；3.应对措施（科学的储存未来用水、开发现有水资源使用新方式、节约用水等）。注意：1.词数不少于100；2.可以适当添加细节，以使行文连贯；3.开头和结尾以为你写好。参考用词：资源resourcesGoodmorning,everyone,IamLiHua.It’smygreathonortospeakhere._________