2025届陕西省宝鸡市渭滨区英语高三第一学期期末监测试题含解析

2025届陕西省宝鸡市渭滨区英语高三第一学期期末监测试题注意事项：1．答卷前，考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。用2B铅笔将试卷类型（B）填涂在答题卡相应位置上。将条形码粘贴在答题卡右上角"条形码粘贴处"。2．作答选择题时，选出每小题答案后，用2B铅笔把答题卡上对应题目选项的答案信息点涂黑；如需改动，用橡皮擦干净后，再选涂其他答案。答案不能答在试题卷上。3．非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新答案；不准使用铅笔和涂改液。不按以上要求作答无效。4．考生必须保证答题卡的整洁。考试结束后，请将本试卷和答题卡一并交回。第一部分（共20小题，每小题1.5分，满分30分）1．Decadesago,scientistsbelievedthathowthebraindevelopswhenyouareakid______determinesyourbrainstructurefortherestofyourlife.A．soonerorlater B．moreorless C．toandfrom D．upanddown2．Itwasfromonlyafewsuppliesthatshehadbroughtinthevillage____thehostesscookedsuchanicedinner.A．where B．when C．that D．which3．Everythingisamazing.Thankyouall.Wewithoutyourhelp.A．can’tmakeit B．mustn’thavemadeC．won’tmake D．couldn’thavemadeit4．Theonlineword“selfie”isgaining______andmoreandmorepeopletendtouseitnowadays.A．accessB．admissionC．controlD．currency5．Allthephotographsinthisbook,statedotherwise,datefromthe1950s.A．unless B．until C．once D．if6．Theconflictbetweeneconomicdevelopmentandenvironmentalprotection,ifnotappropriately_________,cancausedisastrousconsequencesindailylifesettings.A．beingmanaged B．tomanageC．managed D．managing7．Theteacherspokesofastthatitwashardforthestudentsto______whathewassaying.A．takein B．takeoff C．takeon D．takeafter8．Keepingaregularsleepscheduleisimportantforsettingababy'sbodyclock,_______researchersnoteshouldbeinplacebyabout4monthsofage.A．whose B．which C．when D．where9．Asa(n)________andeffectivemethod,expresswaynoisebarrierisaprimarymeasureusedtoreducetrafficnoise.A．correctional B．flexible C．economical D．investigative10．EveryfouryearsAmericans__________thetransferofpower.A．carryoverB．carryoffC．carryonD．carryout11．—Whydoesheweararaincoatonsunnydays?—NordoIunderstand.Heis________.A．awetblanket B．alazyboneC．ablacksheep D．anoddfish12．TheTVstationwillbe______thegameliveonSaturdayafternoon,andwecan’tmissit.A．covering B．improving C．handling D．canceling13．Wehadbetterputoffinterviewingtheathlete,forheisbusypreparingforaninternationalcontest__________inShanghainextmonth.A．held B．toholdC．beingheld D．tobeheld14．Internetshoppingisreally________whenpeoplearesureofitssafetyandsecurity.A．takingoff B．takingupC．settingoff D．settingup15．Don’tletthechildwhois________gotoschool．A．soyoungasto B．notoldenoughto C．notoldenough D．tooyoungto16．IhavenodoubtthatAnnawill________it,butIwonderwhethersheisreallyreadyenough.A．digB．hitC．makeD．lift17．IntermsofMrs.Meng’sbeingarrestedwithoutsolidevidence,thewesternmediahas_____publicattentionawayfromwhereitshouldbe,thatis,theruleoflaw.A．transformedB．shiftedC．attractedD．changed18．Areyoufreenow?Ihavesomethinginterestingtotellyou.OK,youmakeitshortIwillhavetoworkonthistermpaperduetomorrow.A．nowthatB．assoonasC．everytimeD．aslongas19．Weallknowthatgoodresults________foryouwhenyoustartdoingthingsyoulove.A．arewaitingB．havewaitedC．havebeenwaitingD．willbewaiting20．Thisproject______consideredthoroughly,andI’msureit______finishedontime.A．mustbe;maybe B．shouldbe;canbeC．maybe;mustbe D．canbe;shouldbe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）HowdoyougettoCarnegieHall？"Practice，practice，practice"isthewell-knownanswer.ButforsomeinspiringyoungmusiciansfromtheAfghanistanNationalInstituteofMusicinKabul，theroadtothefamousconcerthallwasmoredifficult.TheAfghanYouthOrchestra（AYO）ismadeupofyoungpeoplewhostudyattheAfghanistanNationalInstituteofMusic.ItwasthefirstorchestracreatedinAfghanistanin30years.GulalaiNorestani，14，playsatraditionalstringinstrument.Likemanystudents，Gulalaibecameanorphanwhenherparentswerekilledduringthewar.Musicishersalvation（解救物）."Musicformeisalanguageofpeace，"Gulalaisaid."Ithelpsconnectwithpeople."MiladYousufi，18，isapianostudent."Musicismylife,"hesaid.Miladalsolostmanyofhisfamilymembersduringthewar.Whenmusicwasbanned,hecouldn'teventouchapiano.Soasa12-year-oldboy,hestartedpaintinganddrawing."Iusedtodrawapiano,"hesaid.Finally,Miladwasfreetoplayarealpiano."Ourdreamcametrue,"hesaid."Itiseveryone'sdreamtoplayinCarnegieHall."Andhehasmoredreams."IhaveadreamtocontinuemyeducationinAmerica,"heexplained."Iamworkinghardtomakethathappen.ThenIhaveadreamtocomebacktoAfghanistanandteachandservepeople."BecauseofcontinuinglimitsinAfghanistan,GulalaiandMiladlistenmostlytothekindofclassicalmusictheyplayedatCarnegieHall.ButGulalaisaysshe'sheardabitofJenniferLopezandShakiraandshelikesthem.MiladsayshehasheardofladyGagaandJustinBieber,buthasn'tyethadachancetolistentothem.BeforeMiladwentonstagethatnightwiththebandofAfghankidswhohadsurvivedawar,Iaskedhimifhehadeverexperiencedtruepeace."No,notyet,"heanswered,adding,"IhopeIwillbeableto."Laterduringtheperformance,asheplayedoneofCarnegieHall'sfamousgrandpianos,thelookofpurejoyonhisfaceconvincedmethathefoundpeaceinmusic.1、IntheopinionofGulalai,music________.A．makespeopleunderstandeachotherB．calmsherdowninthewarC．isakindofviolentlanguageD．savesherfromthekillingatwar2、WhatisMilad'sfinalgoal?A．Toplayarealpiano.B．Tobeateacher.C．ToplayinCarnegieHall.D．TobeeducatedinAmerica.3、Accordingtothepassage________.A．classicalmusicisnotplayedinAfghanistanB．GulalaiknowsladyGagaandJustinBieberwellC．themusicGulalaiandMiladcanhearislimitedD．MiladlikesJenniferLopezandShakira.4、Whatmaybethebesttitleforthetext?A．TraditionalAfghanMusicB．YoungMusiciansC．ABetterPerformanceD．PeaceinMusic22．（8分）AfterasuccessfulfirstyearatSt.Faith'sSchoolinCambridgewe'redelightedtobereturningforoursecondsummercamptherein2012.Theactivitycampoffersfunactivitiesduringtheschoolsummerholidaysandisboundtobeverypopularinthelocalarea.Theactionpackedactivityprogrammeincludesmotorsports,archery,fencing,dance,art,footballandmuchmore!We'vegotyourholidaychildcarecovered—Ofsted（英国教育标准局）-registeredforparents,peaceofmind,and80+activitiestoensureavariedandexcitingprogrammeforthechildren.St.Faith'sSchoolisanidealplaceforaBarracudascampwithplentyofbeautifulgroundsandsuperbfacilitiesrightintheheartofthecity.Thesiteconsistsofamodernsportshall,dramastudio,assemblyhall,artroom,tenniscourts,playingfields,motorsportstrackandarcheryrange（靶场）.Wewillalsohaveoneofourfantasticinflatable（可充气的）waterparksonsite;alwaysabighitwithchildrenofallages.Aspredicted,apopularcamp!Thecampisforchildrenaged4.1to12years.Standardopeninghoursare8.30amto1.30pmbutcanbeextendedfrom8amto2pmwithourEarlyandLateClubs.Theseflexiblehoursmeanbusyparentscanberelaxedknowingtheirchildrenarewellentertainedallday!SkillsBuildercoursesavailableatthissiteincludeMotorMania（热衷）,LabRatsandUpstage!Addcover（保险）toyourbookingforunforeseencircumstanceswithCustomerProtectionPlanFurtherquestionsaboutBarracudas?VisitourFAQssectionorcallourfriendlyteamon08411231299.Don'tforgetyoucanalsovisitourTestimonials（推荐书）sectionforcustomerreviewstoo.Pleasenote:alloffersanddiscountedpricesshownbelowaredependentanavailability.Booknowtoavoiddisappointment.1、ThemainpurposeoftheactivityofSt.Faith'sSchoolinCambridgeisforchildrento_____..A．developagoodhabitB．teamupwithotherclassmatesC．promotetheircreativeabilityD．builduptheirbodies2、Whyarebusyparentsprobablysatisfiediftheirchildrenjointhecamp?A．Theirkidscanbewellentertainedundergoodcare.B．Theirkidscanlearnhowtotakegoodcareofthemselves.C．Theirkidscanimprovetheirmoralstandardtoadegree.D．Theirkidswillobtainalotofknowledgeaboutprotectingthemselves.3、Howmuchwill,youpayifyouwanttobookthreekidsfortwoweeks?A．￡181.B．￡1,203.C．￡834.D．￡913.23．（8分）Tinymicrobes(微生物)areattheheartofanewagriculturaltechniquetomanageharmfulgreenhousegas.Scientistshavediscoveredhowmicrobescanbeusedtoturncarbondioxideintosoil-enrichinglimestone(石灰石),withthehelpofatypeoftreethatgrowsintropicalareas,suchasWestAfrica.ResearchershavefoundthatwhentheIrokotreeisgrownindry,acidicsoilandtreatedwithacombinationofnaturalfungi(霉菌)andotherbacteria,notonlydoesthetreegrowwell,italsoproducestheminerallimestoneinthesoilarounditsroot.TheIrokotreemakesamineralbycombiningCafromtheearthwithCO2fromtheatmosphere.Thebacteriathencreatetheconditionsunderwhichthismineralturnsintolimestone.Thediscoveryoffersanewwaytolockcarbonintothesoil,keepingitoutoftheatmosphere.Inadditiontostoringcarboninthetrees’leavesandintheformoflimestone,themineralinthesoilmakesitmoresuitableforagriculture.Thediscoverycouldleadtoreforestation(重新造林)projectsintropicalcountries,andhelpreducecarbondioxideintheatmosphereinthedevelopingworld.IthasalreadybeenusedinWestAfricaandisbeingtestedinBolivia,HaitiandIndia.Thefindingsweremadeinathree-yearprojectinvolvingresearchersfromtheUniversitiesofEdinburgh,Granada,LausanneandDelftUniversityofTechnology.TheprojectexaminedseveralmicrobiologicalmethodsoflockingCO2aslimestone,andtheIroko-bacteriawayshowedbestresults.WorkwasfundedbytheEuropeanCommissionundertheFuture&EmergingTechnologies(FET)scheme.DrBryneNgwenyaoftheUniversityofEdinburgh’sSchoolofGeoSciences,wholedtheresearch,said:“Bytakingadvantageofthisnaturallimestone-producingprocess,wehavealow-tech,safe,readilyemployedandeasilyoperatingwaytolockcarbonoutoftheatmosphere,whileimprovingfarmingconditionsintropicalcountries.”1、Thepassageismainlyintroducing________.A．someusefulnaturalfungiandbacteriaB．anewwaytodealwithgreenhousegasC．anewly-foundtreeinWestAfricaD．thesoil-enrichinglimestonecreatedbyscientists2、WhichofthefollowingisTrueabouttinymicrobes?A．Mosttinymicrobeslikelivingindry,acidicsoil.B．CO2canbebrokendownbynaturalfungiandbacteria.C．Themoregreenhousegasis,themoreactivetinymicrobesbecome.D．TinymicrobesgetalongwellwiththeIrokotreeinspecialsoil.3、Whatdoestheunderlinedword“it”inparagraph3probablyreferto?A．Carbondioxide.B．Carbon.C．Soil.D．Limestone.4、Accordingtothepassage,whatcanweinfer?A．Theactionofthetinymicrobescanincreasetheoxygenintheearth.B．ResearchershavedonetheexperimentontreesinAfricaforthreeyears.C．Researcherstendtousenaturalpowertosolvetheirproblem.D．WestAfricaisoneofthemostpollutedareasallovertheworld.5、Accordingtothepassage,theIroko-bacteriamethod________.A．canbeusedtoimprovethefarminglandB．cansavealotofseriouslydestroyedwoodsC．hasbeenpopularizedinBolivia,HaitiandIndiaD．shouldbespreadallaroundtheworldinthefuture24．（8分）Asparents,wewantourchildrentoreachtheirfullacademicpotential.Wereadtothem,encouragetheirspecialtalents,andsupportthemwhentheyhaveproblems.Iftheychoosetoparticipateinmusicorsports,wealsohelpthemreachtheirpotentialinthoseareas.Theseareallgoodgoals.Thereis,however,anevenmoreimportantgoal.Itisagoalmoredifficultthanexcellenceinarithmeticorsoccerortheviolin.Parentsareresponsibleforprovidingtheirchildrenwithamoralcompass.Theyneedtonurtureandtreasuregoodnessintheirchildren.Everychildhasthecapacitytobecomeagood,decenthumanbeing.Tofulfillthiscapacity,childrenneedtheguidanceandsupportofparentsandotheradults.Raisinggood,moralchildrenisthemostimportantjobwewillhave.Whatisagood,decenthumanbeing?Whilewemaydifferonsomedetails,mostwouldagreethatrespectforothers,kindnessandcaring,honestyandhonor,andareverence(尊重)forlifearekey.Good,decenthumanbeingsarepeoplewithafirmsenseofdirectionandpurpose—amoralcompass—toguidetheirlives.Childrenneedourhelptodevelopthesecharacteristicsandvalues.Whilemostpeopletrytoactwithhonorandkindness,doingsoconsistentlyisdifficultandrequireslifelongeffort.Goodnessisnoteasyforanadultanditisevenmoredifficultforachild.Theydonothavetheknowledge,experiences,orcognitiveskillstounderstandtheimpactandconsequencesoftheiractions.Reinforcementissometimesanefficientapproachtobuildingpositivebehavior.Thechildbehavesinadesiredwayandtheparentsprovidereinforcement.Thebehaviorthentypicallyincreasesinfrequency.Thisapproachworksforteaching“Please”and“Thankyou”.Thenewbehaviorismaintained,becauseithelpsthechildgetalongintheworld.Loving,everydayinteractionsarethebeginningofraisingmoralchildren.Thechildwhofallsandreceivesadultconcernlearnshowtotreatotherskindlywhentheystumble(绊倒).Thechildwhomakesamistakeandisencouragedtotryagainlearnshowtosupportothers.Whenparentsintercede(调解)graciouslyfortheirchild,thechildcanseethebasisforfriendship.Whenwetreatchildrenwithrespectandcare,weprovideapositivemodelofhowtobehave.Theseearlyexperiencesestablishpatternsfortheirtreatmentofothers.1、Whatareadultssupposedtodotomakechildrenbecomegood,decenthumanbeings?A．Toencouragetheirchildrentolearnmoreaboutsportsormusic.B．Tohelptheirchildrentodeveloptheirspecialtalents.C．Tosupporttheirchildrenwhentheyhaveproblems.D．Toreinforcepositivebehaviorthrougheverydayinteraction2、Whyisitdifficultforachildtoactwithhonorandkindness?A．Becauseitisdifficultforadultstodoso.B．Becauseachildisnotmatureenoughtodoso.C．Becauseachilddoesnotunderstandtheabstractconceptof“goodness”.D．Becauseachilddoesnothaveamodeltofollow.3、Theauthortalksaboutteaching“Please”and“Thankyou”todemonstratethat________.A．saying“Please”and“Thankyou”isagoodhabitB．politenessisthenatureofamoralcompassC．politenesshelpsthechildgetalongintheworldD．reinforcementisanefficientapproachtobuildingpositivebehavior4、Whatconclusioncanwedrawfromthepassage?A．Everychildwithoutexceptionwillbecomeagood,decenthumanbeing.B．There’sauniversallyacceptedcriterionfor“agood,decenthumanbeing”.C．Themorereinforcement,themorethechildbehavesinapositiveway.D．Thechildwithasingleparentwillnotbecomeagood,decenthumanbeing.5、Whatisthepurposeofthelastparagraph?A．Toemphasizetheimportanceofadults’concernwhenachildfalls.B．Toshowhowtoguidechildrentodevelopfriendship.C．Toexplainwhyadultsshouldtreatchildrenwithrespectandcare.D．Toshowhowloveandeverydayinteractionsworkinmoldingamoralchild.25．（10分）Dodderisanunusualandunwantedplantthatattackedotherplants.Exceptforitsflower,theplantlookslikespaghetti,akindofnoodlesintheshapeoflongthinpiecesthatlooklikestringwhentheyarecooked.Itsalmostleafless,thread-likestemshangdownontopofotherplantsthatdodderneedstostayalive.Dodderdoesnotproduceitsownfood.Instead,itstealsfoodfromotherplants.Itfeedsbysuckingjuicesfromtheplantwhichiswrappedaround,oftenmakingitshostveryweakorevenkillingit.Doddercanfindotherplantsbytheirsmell.Whenayoungdodderplantstartsgrowing,itfollowsthesmellofplantsitprefers,liketomatoplants,potatoplants,orotherfarmcrops.Unlikemostplantsthatusuallygrowinthedirectionoflightorwarmth,adodderplantwillgrowinthedirectionof,forexample,tomatosmell-ifatomatohappenstobegrowingnearby.However,ayoungdodderplantmustfindahostplantquickly.Itnolongerneedsitsrootonceitisattachedtothehostandwrappedaroundit.Ifitcannotcatchasmellofpotentialhostwithinafewdays,itwilldryupandvanishevenifthereisplentyofwateraround.Onceitfindsahost,theyoungdodderplantwillattachitselftoitandstartgrowingfaster.Atthatpointthedodderplantwilldropitsroot.Dodderisthusadifficultweedtomanageandarealheadacheforfarmers.Whenitdoesgetoutofhand,doddercangreatlyreduceafarmer’sharvestorevendestroycropscompletely.Beforesowingtheirproduce,especiallyfarmersinwarmpartsoftheworldoftenchecktomakesurenounwanteddodderseedshavemixedwiththeircropseeds.Thisisagoodwaytostopdodderplantsfrommakingtheirwaytoacropfieldsecretly.1、Whydoestheauthormentionspaghettiinthefirstparagraph?A．Toanalyzethecontentofsomefood. B．Tointroducethetopicofthispassage.C．Totelltheusageofthedodderplants. D．Todescribetheshapeofdodderplants.2、Whatdoestheunderlinedword“vanish”inthethirdparagraphmean?A．invade B．growC．escape D．disappear3、Whatcanbeinferredfromthepassage?A．Dodderdoesn’tproduceitsownfood. B．Doddergivesoffsmelltoattractplants.C．Doddercanaffectfarmer’sincome. D．Doddercanonlysurviveintheshade.4、Whatisthepurposeofthepassage?A．Tointroduceanewvarietyoffarmcrops.B．Tointroduceplantsthatareharmfultohumans.C．Tointroducethespecialabilitiesofadangerousplant.D．Tointroducerecentimprovementsinfarmingmethods.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）MotthopedtofindaladyonanIowacommunityFacebookpage，butshedidn’tevenknowhername.Allsheknewisthatthe1womanlookedtobeinher30s，hadpurplehairandwas2gentleandcompassionate.At10:25amonBlackFridayMottwasbusyshopping3shereceiveda(n)4phonecall，whichcameinfromthenursinghomewherehermomlived.Thenurseonthephone5herthathermompassedaway.Mottjustkindof6，kneelingdownandstartingtocryuncontrollably.TheladycameacrossMottand，insteadofpassingby，she7andaskedwhatwaswrong.ThenshekeptMottinatight8untilMottwasabletoregainenoughsensestogetbackonherfeet.Sheeven9MotttothecheckoutlineandaskedifanyshoppershadenoughChristmasspirittoletthesadwoman10inline.Thelinesimmediatelypartedtolether11.Mott，still12，didn’tthinktoasktheladyhernameafterpayingherbill.Inrecentdays，Mott’s13tothewomanhadbeenacomfortsomuchthatshelongedtothankher14.Soshereachedoutandhopedpeoplewouldhelpherfindthelady.Stephanie，42，realizedthatMotthadbeenlookingforher.Themost15thingshecouldthinktodowastoattendMott’smother's16.OnceMott17her，thetwostrangers-turned-friendswrappedeachotherinanotherbighug，tearsrunningdown.Thefamilyandothermourners18，probablyfeelingwhatIfelt:Itwasreassuringtoseesuchawarm，visiblesignthatthe19meetingsandrandomactsofkindnessweoftentakeforgrantedsometimes20abigdifference.1、A．wealthy B．proud C．mysterious D．fortunate2、A．slightly B．extremely C．differently D．hardly3、A．when B．while C．where D．because4、A．exciting B．encouraging C．refreshing D．shocking5、A．informed B．warned C．convinced D．reminded6、A．cameout B．workedout C．blackedout D．helpedout7、A．glared B．smiled C．waved D．stopped8、A．place B．hug C．way D．coat9、A．1ed B．called C．followed D．pushed10、A．stand B．walk C．cut D．wait11、A．across B．out C．through D．off12、A．numb B．clumsy C．unconscious D．tired13、A．gratitude B．relief C．satisfaction D．regret14、A．inprogress B．inreality C．inadvance D．inperson15、A．painful B．appropriate C．troublesome D．effective16、A．party B．treatment C．funeral D．meeting17、A．recognized B．met C．thanked D．accompanied18、A．slidaway B．calmeddown C．lookedon D．turnedup19、A．temporary B．constructive C．frequent D．chance20、A．do B．make C．have D．enjoy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）Peoplerelease(放)balloonsforspecialoccasionslikememorialservicesandgrandopenings.Itisfunandexciting.Butitreallycausesgreatdestructiontotheenvironmentandthreatensthe1．(life)ofourwildlife.Whenaballoon2．(fly)intothesky,itdoesn’tendup3．(stay)there.Iteventuallyburstsandreturnstotheearthasuglylitter.Balloonscaneventravelthousandsofmilesandpollutethemostremoteandpureplaces.More4．(sad),theycanpresentathreattomanyanimals.Birds,whales,turtlesandotheranimalsoftenmistakeballoons5．food,whichcandodamagetothembecauseballoonscontain6．(harm)chemicals.Balloonsevenkillanimals.Whenananimalswallowsaballoon，itcanblockitsintestinaltract(肠道),resultinginstarvation.Partofthereasonwhyreleasingballoons7．(permit)insomanyplacesisthatsomeballoonsdobreakdowneventually.However,ittakesaboutfouryears8．(break)downcompletely.Watchinghundredsofballoonsslowlygoingupintotheskymightgiveyouafive-secondthrill,9．isitworthabunchofdeadanimalsandsomanyplacesfullofrubbish?Absolutelynot.10．weshoulddoistogetcreativeandcomeupwithalternativewaystocelebrate.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，请你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：把多余的词用斜线(＼)划掉。修改：在错的词下画一横线，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。Traintravelisquiteadifferentexperiencetoday、LittlethingscanmatchChina’shigh-speedrailsystem,especiallythespeedatthatitisstilldeveloping、Thespeedknownas“Chinaspeed、”Chinaspeedmeansalotofto