2025届拉萨市高考英语必刷试卷含解析

2025届拉萨市高考英语必刷试卷注意事项：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．Youneverreallyunderstandaperson________youconsiderthingsfromhispointofview.A．if B．onceC．as D．until2．Theproblemwiththecurrentsystemallowsanyonetocommitasimilarcrimewithout.Itneedstobefixed.A．beingpunishedB．punishedC．topunishD．punishing3．—Bettergetdowntoyourwork,Tom.—_________.A．It’smypleasure B．Don’tmentionit C．MindyourownbusinessD．You’rewelcome4．Thewholenationisstrugglingtoworkoutaninexpensive______effectivesolutiontosmog.A．yet B．still C．or D．though5．Iamalwaysdelightedwhenreceivingyourinvitation,______thepartyonJune9thafterthenationalcollegeentranceexamination,Ishallbepleasedtoattend.A．Onaccountof B．WithregardtoC．Inresponseto D．Inviewof6．Newenergy-sharingprojects_____indozensofcitiesacrossthecountrytofuelChina’ssharingeconomyinthenextfewyears.A．aretocarryout B．arebeingcarriedoutC．werecarriedout D．willhavebeencarriedout7．Howdidshelosesomuchweightasexpected？_____________eatingless，shejoggedforseveralmileseveryday.A．Inadditionto B．InspiteofC．Insteadof D．Thanksto8．Wheneveryou________apresent,youshouldthinkaboutitfromthereceiver’spointofview.A．bought B．havebought C．willbuy D．buy9．Wearelivinginanage________QRcodes(二维码)arebecomingmoreandmorepopularinourdailylife.A．why B．thatC．whose D．when10．Themanwasina________conditionwithsevereinjuriestohislegsafterbeingattackedbyasharkinfarnorthQueensland.A．skepticalB．criticalC．practicalD．physical11．______toworkovertimethatevening,Imissedawonderfulfilm.A．HavingbeenaskedB．ToaskC．HavingaskedD．Tobeasked12．________leftthedoorunlockedmustbeheldresponsiblefortheaccident.A．Whomever B．WhoeverC．Whatever D．Whenever13．Someexpertsthink,________genes,intelligencealsodependsonanadequatediet,agoodeducationandanicehomeenvironment.A．insteadof B．exceptforC．apartfrom D．farfrom14．henewly-discoveredstarwasnamed_____aChineseastronomer________hiscontributionstoastronomy.A．for;infavorof B．after;inhonorofC．by;inmemoryof D．as;inpraiseof15．Don’tthrowawaytheoldbooks．Givethemto____needsthem．A．whoever B．anyone C．who D．whomever16．Internetshoppingisreally________whenpeoplearesureofitssafetyandsecurity.A．takingoff B．takingupC．settingoff D．settingup17．Patrickwaited________alltheluggagewascleared,buthisneverappeared.A．until B．beforeC．when D．while18．Takethenoteasareminder______youforgottobuysomesweetsforthekidswhileshoppingthere.A．how B．thatC．incase D．evenif19．Neverinmylife________suchabeautifulsunrise!A．haveIseenB．IhaveseenC．didIseeD．Isaw20．Theweatherturnedouttobefine.I_____________thetroubletocarrytheumbrellawithme.A．shouldhavetaken B．musthavetakenC．couldn'thavetaken D．needn'thavetaken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）Mostofushavequitegoodmemories,butourmemoriesarelimited.Forexample,wecannotremembereveryonewehaveevermetorwhatwedidoneverysingledayofourlives.However,therearesomepeoplewhodohaveprodigiousmemories.Thesepeoplehavearareconditionknownassavantsyndrome（学者症候群）.Savantssufferfromadevelopmentaldisorder,buttheyalsoexhibitgreattalentsthatcontrast（显出差异）sharplywiththeirphysicalandmentaldisabilities.KimPeek(1951-2009)wasasavantwholivedinSaltLakeCity,Utah,intheUnitedStates.Hewasbornwithdamagetopartsofhisbrain,butitseemedthatotherpartsofhisbrain,particularlythoserelatingtomemory,becameover-developed.Peek’suniqueabilitiesappearedataveryearlyage.Whenhewasjust20monthsold,hecouldalreadyremembereverybookthatwasreadtohim.Peekcouldreadtwopagesofabookatthesametime-onepagewiththerighteyeandonewiththeleft-inlessthan10secondsandremembereverythingheread.Bythetimehedied,Peekhadmemorizedmorethan9,000books.Hecouldrememberallthenamesandnumbersinavarietyoftelephonebooks.Hecouldrememberthousandsoffactsabouthistory,literature,geographyandsports.Dr.DavidTreffert,anexpertonsavantsyndrome,oncedescribedPeekas“alivingGoogle”becauseofhisastonishingabilitytomemorizeandconnectfacts.However,atthesametime,Peekwasunabletocarryoutsimpletasks,suchasbrushinghishairorgettingdressed,andheneededotherstohelphim.In1989,themovieRainManwontheOscarforbestPicture.Themaincharacterinthemovie,playedbyDustinHoffman,wasbasedonKimPeek'slife.Hestartedtoappearontelevision,wherehewouldamazeaudiencesbycorrectlyansweringdifficultquestionsondifferenttopics.Peek-becameworldfamous,andheandhisfatherbegantouringwidelytotalkaboutovercomingdisabilities.Heinspiredagreatmanypeoplewithhiswords.“Recognizingandrespectingdifferencesinothers,andtreatingeveryoneinthewayyouwantthemtotreatyou,willmakeourworldabetterplaceforeveryone.Everyoneisdifferent.”1、Theunderlinedword“prodigious”inParagraph1probablymeans______.A．happy B．clear.C．amazing D．short2、Accordingtothetext,Peek______.A．couldtakecareofhimselfB．wasbornwithagoodmemoryC．wasthestudentofDr.DavidTreffertD．becamebrain-damagedat20monthsold3、HowisParagraph3mainlydeveloped?A．Bygivingfacts. B．Byfollowingtimeorder.C．Byexplainingcauses. D．Bymakingcomparisons.4、Peek’swordssuggestthatweshould______.A．respectdifferentcultures B．listentodifferentopinionsC．treatdifferentpeopledifferently D．respectothers’differences22．（8分）Americanfamiliesareaccustomedtosettlinginfarawayplaces,whichhasbeenanationalphenomenon.Decadesofdata,includingamorerecentGallupstudy,characterizestheUSasoneofthemostgeographicallymobilecountriesintheworld.“AboutoneinfourUSadults(24percent)hasreportedmovingwithinthecountryinthepastfiveyears.”thereportednoted.WiththeexceptionofFinns(23percent)andNorwegians(22percent),AmericansmoveconsiderablymorethantheirEuropeanpeers.Thoughsomemaymoveforloveorfamily,themajorreasonwhyAmericanschoosetomovearoundis,unsurprisingly,relatedtowork.CitingdatafromtheCurrentPopulationSurvey,apostontheblogoftheNewYorkFednotedthatbetween58and2013,“slightlymorethanhalfofinterstate(州际的)migrantssaidtheymovedforemployment­relatedreasons—acategorythatincludesmovesundertakenfornewjobs,jobtransfers,andeasiercommutes(通勤).”Theseekingofopportunity,particularlyforanimmigrantnation,isanationalmythology(神话)aswellasanemotionalattachmenttowork.AnewworkingpaperanalyzedbyBenStevermanatBloombergsuggeststhatworkersintheUSnow“putinalmost25percentmorehoursthanEuropeans”inagivenyear.Thisfigurehassteadilyrisensincethe30s,whenthehoursloggedbyworkersinWesternEuropeandtheUSwereroughlythesame.Thereare,ofcourse,someinternalfactors.TheUSismuchvasterthanmostEuropeancountries,plusitboasts(拥有)acommonlanguage.ItisconsideredtobeasignofanefficientlabormarketthatUSworkerscanbepersuadedtomovetoregionswherethereisasteadygrowthinjobs,suchastheSunBeltinrecentyears.AndwhileAmericanworkersoftenhavefewerlaborprotectionsthantheirEuropeancounterparts,asareportbytheWorldBanknotedin2012,American“laborlawsgiveemployersthepowertofire,hire,orrelocate(重新安置)workersaccordingtotheirneeds”，aflexibilitythatisthoughttoaideconomicgrowth.TheWorldBandreportaddedthattheoccupationoftheaverageUSemployeein66was4years,comparedto10yearsintheEuropeanUnion.Nevertheless,whileAmericansremainexcessivelymobile,FaithKarahanandDariousLiattheNewYorkFedarethelatesttonotethatUSworkersaremovingaroundlessthanbefore.Duringthe40s,3percentofworking­ageAmericansrelocatedtoadifferentstateeachyear;thatfigurehadbeencutinhalfby2010.“WhilepartofthedeclinecanbeattributedtotheGreatRecession，”theauthorssuggest,“this__phenomenontookplaceoverthecourseofseveraldecadesandisnotnecessarilyrelatedtotheeconomicconditions.”Sowhataccountsforthisphenomenon?Around­upoftheoriesbyBradPlumeratTheWashingtonPostincludedtheagingoftheUSworkforce,thefurtherriseoftwo­incomehouseholds,theburdensofrealestate,evolvingworkplaceculture,aswellastheflatlineofwages,whichmakesmovingawayforajob,onaverage,alessrewardingfinancialproposition.KarahanandLiputmuchstockintheeffectsofanagingworkforce,towhichtheyattributeatleasthalfofthedeclineininterstatemigration.“Inshort,ayoungindividualtodayismovinglessthanayoungpersondidinthe40sbecauseofthehigherpresenceofolderworkers，”theywrite,suggestingthatemployershaveshiftedtheiremploymenttactics(策略)toadapttothechangingdemographics(人口统计数据)oftheworkforce.Needlesstosay,moviesaboutthiserainAmericanlife,inwhichfewerpeoplesetouttostartlivesinwide­rangingplaces,willprobablybemuchlessexciting.1、Accordingtothepassage,inthepastfiveyears,Americanshavemoved________.A．relativelylessthantheBritish B．lessfrequentlythanItaliansC．slightlymorethanNorwegians D．considerablymorethanFinns2、WhatcanweinferfromParagraphs2and3?A．Americanschoosetomovemainlyforworkandfamily.B．Americanshaveaverystronginterestinwork.C．AmericansinvestedmoretimeinworkthanEuropeansin35.D．AmericanstendedtomovetoEuropebetween58and2013.3、WhichofthefollowingisNOTthereasonwhyAmericanworkersmovemorethantheirEuropeanpeers?A．ThereisacommonlanguageintheUS.B．TheUSismuchvasterthanmostEuropeancountries.C．Americanlaborlawsgiveemployersmorefreedomtodealwiththem.D．Theyareofferedmoreefficientlaborprotections.4、Theunderlinedpart“thisphenomenon”inParagraph5refersto________.A．theGreatRecessionB．thedeclineofworking­ageAmericans'interstatemigrationC．thereductioninthenumberofworking­ageAmericansD．Americans'tendencytoremainmobile5、HowdoAmericanemployersdealwiththeagingworkforceaccordingtothepassage?A．Bystickingtotheirpreviouspolicies. B．Byadjustingtoit.C．Byimprovingtheiremployees'jobskills. D．Byraisingemploymentstandard.6、AstothecurrentsituationofAmericansmigration,theauthormightfeel________.A．curious B．strange C．confused D．disappointed23．（8分）SummerActivitiesExperiencetheromanceofPariswithanunforgettablenightoutthatcombinesthreeofthetoptoursintheCityofLights.ChoosefromdinnerattheEiffelTower’suniquerestaurantagainstthenightsky,atLesOmbresrestaurant,aparticularmealaboardadiningcruisedowntheSeineRiverorcapoffthenightwithaParisiancabaretshowattheMoulinRougenightclub.ActivityDescriptionCostEiffelTowerDinnerSettleintoyourprivatetableatthemodern58TourEiffelrestaurantfora3-coursemealofclassicFrenchstyleaccompaniedbyyourchoiceofwine.Thediningroomarearoundthefirst-floorobservationdeckoftheEiffelTower58meters(190feet)aboveground,soyoucanenjoycityviewsthroughexpansivepicturewindows.$318.10SeineRiverCruiseDinnerStepintoa3-coursedinneraboardtheMarinadeParisfloatingrestaurant.Whileyoudine,cruisepastthefamousmonumentsofParis,includingtheLouvre,NotreDamecathedral(大教堂),theEiffelTowerandseveralofthecity’shistoricbridges.Attheendofyourdinnercruise,visitthetwinklingEiffelTowerforanhour.$313.37LesOmbresrestaurantDinnerEnjoya3-coursemealdinneratLesOmbresrestaurant,alldrinksincludedandaglassofchampagne.$282.62MoulinRougeShowFollowingyourdinneroption,travelbyair-conditionedcoachtothedistrictofMontmartre,theheartofParis.HeadtotheMoulinRougenightclubandsettleintoyourseatsfortheclassicParisiancabaretshowwhichfeaturesmorethan100talentedperformers.Beattractedbyaparadeofbejeweledandfeatheredcostumesasdancersperform.$348.8491、Whichactivitywillyouchooseifyouwanttoseecabaretshow?A．EiffelTowerDinner B．SeineRiverCruiseDinnerC．LesOmbresrestaurantDinner D．MoulinRougeShow1、WhatwillthevisitorsdoattheendoftheSeineRiverdinnercruise?A．visittheLouvreB．visittheEiffelTowerC．visittheNotreDamecathedralD．visitthedistrictofMontmartre2、HowmuchdoestheLesOmbresrestaurantDinnercost?A．$282.62 B．$313.37C．$318.10 D．$348.8424．（8分）Researcherssaytheyhavedevelopedtechnologythatcouldpredictheartattacksyearsbeforetheyhappen.TheyreportusingmathematicalsystemstoexamineCTimagesofapatient’sheart.ACTscanusesX-raysandacomputertomakedetailedpicturesofbones,organsandothertissueinsidethebody.ThenewmethodwasdevelopedbyresearchersattheUniversityofOxfordinEngland.AreportontheirstudywaspublishedinthemedicaljournalTheLancet.AlsotakingpartinthestudywereteamsfromGermanyandtheUS.Mostheartattacksresultfromabuild-upoffattytissueinsidearteries（动脉）thatcarrybloodfromthehearttootherareasofthebody,thusblockingthisflowofbloodandcausingaheartattack.Currently,doctorsuseCTscanstolearnwhenastickysubstancecalledplaquehasalreadybuiltupinsideanartery.Thenewtechnologyisdesignedtopredictwhicharteriesareatriskforfuturebuildup.TheresearchersreportedusingcomputerstoexamineCTscanstomeasurehowmuchfatispresentaroundheartarteries.Thatfatchangeswhenanarterybecomesaffected,servingasanearlywarningsystemforheartattacks.Charalambos,aprofessoratOxfordUniversity,saidhebelievestheresearchshowsthismethodcouldbeveryeffectiveingettingpatientstotakeearlystepstopreventfutureproblems,addingthatresearchershadyettoestimateexactlyhowmanyheartattackscouldbeprevented.Buthesaidhebelievesthetechniquecouldhelpidentifybetween20to30percentofpeopleatriskofhavingone.HeaddedthatthenewtechnologywillmakesuchpredictionseasierbecauseitworkstogetherwithexistingCTtechnology.Theresearchwasbasedontwolarge,independentstudiesof4,000patientsinGermany,andtheUS.AcompanywithtiestoOxfordUniversityisdevelopingaservicetoexamineCTscansofpatientsaroundtheworld,Reutersreported.1、What’stheaimofthenewtechnology?A．Topredictwaystoblockfattyissuesinheartarteries.B．Toprovidedetailedpicturesofhowarterieswork.C．Tobuildcomputermodelsoftheimageofaheart.D．Todecidewhicharteriesarelikelytohavefatbuiltup.2、Whendoesaheartattackgenerallyhappenaccordingtothetext?A．WhentheCTscanaffectstheflowofbloodintheheart.B．Whenfataroundheartarteriesblockstheflowofblood.C．Whenastickymaterialflowsintoanarteryneartheheart.D．Whenbonesandorgansofthebodybegintobeweak.3、Whatisanearlywarningforheartattacks?A．Achangeoffathappeningaroundheartarteries.B．Thefindingofastickymaterialintheblood.C．Thepresenceoffataroundthebonesandorgans.D．Theagingandfailureofarteriesneartheheart.4、What’sthemainideaofthetext?A．Theharmoffatbuild-uptoheartarteries.B．TheuseofCTscanstopreventofheartattacks.C．Researchintotheearlywarningofheartattacks.D．Thewarningthebodygivesaboutheartattacks.25．（10分）Peoplehavegrowntalleroverthelastcentury,withSouthKoreanwomenshootingupbymorethan20cmonaverage,andIranianmengaining16.5cm.Aglobalstudylookedattheaverageheightof18-year-oldsin200countries1914and2014.TheresultsshowthatwhileSwedeswerethetallestpeopleintheworldin1914,Dutchmenhaverisenfroml2thplacetoclaimtopspotwithanaverageheightof182.5cm.Larvianwomen,meanwhile,rosefrom28thplacein1914tobecomethetallestintheworldacenturylater,withanaverageheightof11.8cm.JamesBentham,aco-authoroftheresearchsaystheglobaltrendislikelybutonceyouaverageoverwholepopulations,geneticsplaysalesskeyrole,"headded.Butwhileheighthasincreasedaroundtheworld,thetrendinmanycountriesofnorthandsub-SaharanAfricacausesconcern,saysElioRiboliofImperialCollege.WhileheightincreasedinUgandaandNigerduringtheearly20thcentury,thetrendhasreversedinrecentyears,withheightdecreasingamong18-year-olds."Onereasonforthesedecreasesinheightistheeconomicsituationinthe1980s,"saidProfessorAlexander.Thenutritionalandhealthproblemsthatfollowedthepolicyofstructuraladjustment,hesays,ledtomanychildrenandteenagersfailingtoreachtheirfullpotentialintermsofheight.Benthambelievestheglobaltrendofincreasingheighthasimportantimplications."Howtallwearenowisstronglyinfluencedbytheenvironmentwegrewupin,"hesaid."Ifwegivechildrenthebestpossiblestartinlifenow,theywillbehealthierandmoreproductivefordecadestocome."1、WhatcanbelearnedfromParagraphI?A．Theincreaseinwomen’sheightismuchbiggerthanmen’sinthelastcentury.B．Thelastcenturyhasseenagreatincreaseinpeople’sheightinmostcountries.C．Geneticsplaysakeyroleintheincreaseofpeople’sheightinthelastcentury.D．DutchandSwedesarerankedfirstandsecondinheightintheworldnowadays.2、Theunderlinedword"reversed"inParagraph2canbereplacedby.A．sloweddown. B．goneupwards. C．changedtothecontrary. D．cometolifeagain.3、Accordingtothetext,JamesBenthamsuggeststhat.A．Theeconomicsituationofsomecountriesshouldbeimproved.B．Environmentprotectionshouldbeattachedgreatimportanceto.C．Theglobaltrendofincreasingheightshouldbecloselywatched.D．Children’spropernutritionandhealthcareshouldbeguaranteed.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）Yearsago,IwasworkinginaFrenchcosmetics（化妆品）company.Oneday,wehadadiscussionaboutthepackageofthenewly-designedproduct.Oneofmycolleagues1thepictureofhisdesign.Thedirectoraskedusto2onit.Ifoundthepatternwell-designedbutdidn’tmatchtheFrenchstyle.3ithasnofeaturetoreflecttheFrenchfashion.4,Istoodupandexpressedmyopinion,“Thepackageisbeautifulandthecolorsareharmonious.ButastheChinesemarketingmanager,Iknow5whatconcernsthecustomers.They’dliketoseesometracesofFrench6fromthedesign.Sincethisproductmainly7theChinesemarket,Isuggestweaddsomethingfamiliartoour8.Forexample,wecanattachourcompanylogotothepicture;9,itcan’thighlightourcompanyimage.”Butsomeofmyworkmates10withme.Theybelievedthedesignwasgoodenoughand11themanagerofourdepartmentwasontheirside.Theargumentwasso12thateventuallyIsaidinatremblingvoice,“Iinsistonsomechangesinthedesign,becauseIcan'tbeartoseeyou13thereputationofourcompany.”Themetingendedwiththeproblem14.However,thenextdaythedirectorofthecompanycametomyofficeandtoldme,“Ithoughttwiceaboutthenew15lastnightandIhadoadmitthatyourplanwasmorepractical.Sowe’lladoptyourplanandthanksforyour16topersuadeothers.Withoutyouadvice,ourcompanymight17greatlosses.”IwasveryhappythatIhadstucktomyopinion18followingothers.Sometimes,peoplelackthe19toinsistontherightchoices.Butasmallstepfurthercanmakeabig20.1、A．presentedB．removedC．measuredD．discovered2、A．actB．experimentC．commentD．put3、A．InturnB．InpublicC．IncommonD．Inparticular4、A．ThereforeB．BesidesC．HoweverD．Instead5、A．frequentlyB．exactlyC．rarelyD．correctly6、A．campaignB．paintingC．civilizationD．style7、A．aimsatB．importsfromC．holdsbackD．consistsof8、A．companiesB．customersC．colleaguesD．managers9、A．hopefullyB．afterwardsC．consequentlyD．otherwise10、A．disagreedB．stuckC．tradedD．mixed11、A．onlyB．evenC．againD．hardly12、A．amazingB．fierceC．officialD．successful13、A．promoteB．maintainC．riskD．defend14、A．overcomeB．observedC．coveredD．unsettled15、A．theoryB．advertisementC．designD．goal16、A．groupB．promiseC．warningD．effort17、A．avoidB．announceC．predictD．suffer18、A．butforB．nexttoC．insteadofD．dueto19、A．ambitionB．courageC．motivationD．strength20、A．differenceB．soundC．fortuneD．mistake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）Wehighschoolstudentsdohavesomegrowingpains,1．wecangetridofthemcorrectlyandwisely.First,someofusareupset2．theirbodystylesandlooks.It’sunnecessaryandit’snotimportantatall.Weneedn’tcareaboutit.Itisone’sinnerbeauty3．matters.Second,wesometimesseemtobemisunderstoodbyourteachers,parentsandclassmates.4．(face)withthis,wecanfind5．propertimetohaveaheart-to-hearttalkwiththem,tryingtoremovethe6．(understand).Someofushavefewerinends.Ithinkbeingopen-mindedandfriendly7．(do)yougood.Third,wemayfallbehindothers,8．makesusstressed.Actuallywecanencourage9．toworkefficiently,fullofdetermination.Lastly,someofusdon’thavemuchpocketmoney,sotheyfeelunhappy.Isn’titstrange?Solongaswehavesome,that’senough.Andwecanlearn10．tospendmoney.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。错误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。IfeltdelightedtobeinformedthenewsthatIwouldbeourStudentUnion’snextministerofhealth.Therefore,whenIcalmeddown,Ibegantorealizewhatchallengingthejobwouldbe.IcanstillrememberthefirsttimeIholdameetingwithallthemembers,thatwasarealchallengeforme.Withsomanyeyesfi