山東省煙臺市芝罘區(qū)煙臺一中高三下學(xué)期一?？荚囆赂呖加⒄Z試題及答案解析

山東省煙臺市芝罘區(qū)煙臺一中高三下學(xué)期一?？荚囆赂呖加⒄Z試題考生請注意：1．答題前請將考場、試室號、座位號、考生號、姓名寫在試卷密封線內(nèi)，不得在試卷上作任何標(biāo)記。2．第一部分選擇題每小題選出答案后，需將答案寫在試卷指定的括號內(nèi)，第二部分非選擇題答案寫在試卷題目指定的位置上。3．考生必須保證答題卡的整潔?？荚嚱Y(jié)束后，請將本試卷和答題卡一并交回。第一部分（共20小題，每小題1.5分，滿分30分）1．It'ssaidthatthepowerplantisnowlargeaswhatitwas.A．twiceas B．a(chǎn)stwiceC．twicemuch D．muchtwice2．—Doyouhaveanyproblemsifyou______thisjob?—Well,I’mthinkingaboutthesalary….A．offerB．willofferC．a(chǎn)reofferedD．willbeoffered3．Wordcamethat30firefightersgavetheirlivestoourcountry_______nationalpropertysecurity.A．inexchangefor B．inresponsetoC．intermsof D．incontrastwith4．Neverturndownajobbecauseyouthinkit’stoosmall.Youdon’tknow_____itcanlead.A．howB．whereC．whetherD．what5．Heisverytired，soheneedssometime________dutyforrelaxationandrest.A．through B．onC．with D．off6．Effortswillbemadeto______newteachingmodelstoexploitthestudents’potential.A．a(chǎn)ccelerateB．innovateC．differentiateD．compile7．What’swrongwithyourcellphone?Ican’tgetthrough.Oh,mylinewascutoffbecauseI________mybill.A．haven’tpaid B．hadn’tpaid C．wasn’tpaying D．don’tpay8．—I’mburntoutasI’vebeenworkingonmyessayallthetime.—____________.You’llsurelymakeit.A．Don’tputonairs B．GivemeabreakC．Don’tgetonmynerve D．Hanginthere9．As______healthierlifestyleisbeingpromoted,thebicyclehasalsobecomeatoolthatkeepspeopleon______go.A．the;a B．a(chǎn);aC．a(chǎn);the D．a(chǎn);/10．__________himnottodoso,hewouldn’thavemadesuchaseriousmistake.A．DidIpersuade B．IfIpersuadeC．IfIshouldpersuade D．HadIpersuaded11．RegardingChina-USdifferencesonhumanrightsissues,Hongsaidthetwosidescanenhancemutualunderstandingthroughdialogue______onequalityandmutualrespect.A．based B．tobase C．basing D．base12．Hi,Betty,areyoufreeatpresent?Ihavetoaskyouforafavor．_____．Withpleasure．A．Sorry,Iambusy B．GoaheadC．Helpyourself D．Ask,please13．Scientistshavemanytheoriesabouthowtheuniverseintobeing.A．came B．wascoming C．hadcome D．wouldcome14．Thedaysaregonephysicalstrengthwasallyouneededtomakealiving．A．that B．whenC．where D．which15．TheplanforXionganNewArea______officiallyonApril1,2017.A．a(chǎn)nnouncedB．wasannouncedC．a(chǎn)nnouncesD．isannounced16．IthinkTomwillmakeagoodmonitor,________I’dliketovoteforhim.A．butB．forC．orD．so17．________amazedusgreatlywasthatLindacouldspeakfivelanguages.A．That B．What C．Which D．Why18．—Howdoyoufindyournewclassmate?—Oh,sheisreally________ofamusician,whocannotonlysingverybeautifully,butalsocomposeskillfully.A．something B．somebodyC．everything D．everybody19．Duetothereformandopening-up,ourlivingconditions,undoubtedly,haveimproved________overthepastdecades.A．considerately B．a(chǎn)pproximately C．a(chǎn)ppropriately D．considerably20．Duringtheeconomiccrisis,weshouldhelpthosefor______lifeisfarfromeasy．A．whom B．whose C．who D．whoever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(gè)選項(xiàng)中，選出最佳選項(xiàng)。21．（6分）TheCardboardBoxOfficeisaprojectcreatedbyLillyandLeonMackie,whorecentlymovedfromNewZealandtoSydney,Australia.Thetransferleftthemwithamountainofcardboardboxes,andthearrivaloftheirbabysonOrson10monthsagomeanttheirsocialliveswere“completelyaltered(改變.”Sothecoupledecidedtotrytomakesomefunofthesituation.“Westartedaftercreatingaone-offphotowherewewantedtoportraythegeneralmessandsleep-deprivation(睡眠)thatcomeswithbeingnewparents,”LillyMackiesaidinanemail.“Peopleseemedtoreallyloveitandaskedformore.Wehadalotofweekendsathomeandastockpileofcardboardsowethought‘Whynot?’Itwentfromthere.”TheMackiestookthefirstphotosinSeptemberandhaveportrayed14moviessofar,includingtheirversionsof“CastAway”(or“Castababy”)and“JurassicPark”(or“Goo-gooGaa-gaa-rassicPark”).Even“StarWars”getstheMackietreatment,withOrsonholdingacardboardtubeinplaceofasaber(軍刀)andmomsportingimpressivePrincessLeia-likehairbuns(HImadeoutofbrownpaperinthephototitled“WahWars.”Thefamilyusuallycreatesthesetson'SaturdaysandpoststhewhimsicalpicturesontheirblogandFacebookpage,whichhavealmost3,000fans.Besidescardboardboxes,thephotosfeaturecostumes,props(道具),andsetscreatedoutofeverydayhouseholditems,toys,“andthreeindividualsslowlylosingtheirsense,”theyjokedontheirblog.Leon,achildren’sbookdesigneratalargepublishingcompany,andLilly,astay-at-homemom,arebothfilmbuffsandphotographyfans.Thebabyisalsobecomingaconnoisseur(鑒賞家)ofmoviesandcardboardboxes.“Orsonseemstofindthephotoshootsquitefascinatingandenjoysexploringthesets-andtearingthingsapart.There’sneveradullmomentforhimonSaturdaynights,”Lillysaid.“Whenhegetsalittleolder,we’11bringinalotmoreofhisinput,askingforhisideasonfilmsandsets.Makeitarealfamilything.Ithinkhemaycomeupwithsomequitefunnythings.”1、TheoriginalreasonwhytheMackiescreatefamilymoviesisthat______.A．theywanttoearnagreatdealofmoneyB．bothofthemarechildren’sbookdesignersC．theyhavenofriendsintheirnewcommunityD．theywanttomaketheirfamilylifeinteresting2、WhatdoweknowabouttheMackies’familymovies?A．TheyareusuallymadeonSundays.B．TheyarenotpopularontheInternet.C．Someofthemaremadebasedonfamousfilms.D．Theyaremainlyaboutearlychildhoodeducation.3、Whichwordisclosestinmeaningtotheunderlinedword“whimsical”inParagraph4?A．Unusual.B．Valuable.C．Famous.D．Disgusting.4、What'sthefinalpurposeoftheMackies'makingfamilymovies?A．Toteachaudienceshowtomakefilms.B．Toprovetheirbabyisverybright.C．TodevelopOrson'sskillsinart.D．Tomakethemselves.famous.22．（8分）Lifehasn’talwaysbeeneasyforSareanaKimia,16.Herparentssplitupwhenshewasyoung,andshehasn’tseenherdadsinceshewasl0.InJune2014,sheandhermom,ShefaliGupta,foundoutthattheywouldsoonbeevicted(逐出)fromtheirhome.Sareanaknewthathermomhadmoneyproblems.Evenbeforetheeviction,Guptahadbecomeverysad.Becauseshedidn’thavehealthinsurance,Guptacouldn’tgetadoctor’shelpforheremotionalproblems.Sareanatookchargeofthingsathome.Forexample,sheoftencookedherfamily’smeals.Whensheandhermomwereabouttolosetheirhome,itwasSareanawhoarrangedaplaceforthemtostay.Foryears,Sareanahadbeenanactivevolunteerwithseveralorganizations.Sheevenstartedherowngroup,YouthforNationalChange.Itworkstosupporttherightsofyoungpeople.Sareanacalledafewadultsshehadworkedwith.Afterfindingoutabouthersituation,onecoupleopenedtheirdoorsrightaway.ButbyAugust2014,thecouplenolongerhadroomforSareanaandhermom.Thetwoendeduplivingintheircar.Theydidn’twanttogotoahomelessshelteroutoffearthattheycouldbesplitup.Throughitall,Sareanakeptworkingonprojectsandstudying.“AtnopointdidIletwhatwasgoingonchangemydailyroutine,”shesays.Sareanaishomeschooledonlineandgoestoclassesatanearbycollege.Lastfall,schoolbillsbeganpilingup.Shehadnowaytopaythem.Afriendsuggestedthatshetryraisingfundsonline.AfteranewspaperrananarticleaboutSareana,donationspouredin-nearly$30,000!Shepaidforschoolandhadenoughmoneylefttorentasmallapartment.SheandhermommovedintoitinJanuary2015.1、WhathappenedtoSareanain2014?A．Shelostherfather.B．Shebecamehomeless.C．Hermomabandonedher.D．Herhousewasdestroyed.2、Sareanastartedanorganizationto.A．teachpeopletocookB．supportpoorpeopleC．earnmoneyD．helpyouth3、Sareanafinallyfoundherownapartment.A．byraisingmoneyB．bydoingpart—timejobsC．withthehelpofherfriendsD．withthehelpofhercolleg23．（8分）TheNazcaLinesareaseriesoflargeancientgeoglyphs(地畫)intheNazcaDesert,insouthernPeru.Itisrangingfromgeometricpatternstodrawingsofdifferentanimalsandstylizedhuman-likeforms.Theancientlinescanonlybetrulytakeninfromhighintheair,leavinggenerationspuzzledastohowthesepreciseworkscouldhavebeencompletedlongbeforethedocumentedinventionofhumanflight.TheLineswerefirstspottedwhencommercialairlinesbeganflyingacrossthePeruviandesertinthe1920,s.Whobuiltthemandwhatwastheirpurpose?Aretheyroads,starpointers,maybeevenagiganticmap?Ifthepeoplewholivedhere2,000yearsagohadonlyasimpletechnology,howdidtheymanagetoconstructsuchprecisefigures?Didtheyhaveaplan?Thesemarkingsarelikeavastpuzzle.TheNazcaLinesarethemostoutstandinggroupofgeoglyphsintheworld.TherearealsohugegeoglyphsinEgypt,Malta,UnitedStates(MississippiandCalifornia),Chile,Boliviaandinothercountries.ButtheNazcageoglyphs,becauseoftheirnumbers,characteristics,dimensionsandculturalcontinuityastheyweremadeandremadethroughoutacertainhistoryperiod,formthemostimpressivearcheological(考古學(xué)的)group.TheNazcaplainisuniqueforitsabilitytopreservethemarkingsuponit,duetothecombinationoftheclimate(oneofthedriestonEarth,withonlytwentyminutesofrainfallperyear)andtheflat,stonygroundwhichminimizestheeffectofthewindatgroundlevel.Withnodustorsandtocovertheplainandlittlerainorwindtoerode(腐蝕)it,linesdrawnheretendtostaydrawn.Thesefactors,combinedwiththeexistenceoflighter-coloredsubsoilbeneaththedesertsurface,provideavastwritingpadthatissuitedtotheartistwhowantstoleavehismarketernal.1、283．WhatcanweknowabouttheNazcaLinesfromthefirsttwoparagraphs?A．Theywerebuiltasabigmap.B．Theywereformedbynature.C．Theyareancientlinesincaves.D．Theyarehugemarkingsinadesert.2、285．HowmanyfactorsmaketheNazcaLinesthemostimpressive?A．One.B．Two.C．Three.D．Four.3、287．WhyaretheNazcaLineswellpreserved?A．Becauseofthewindatgroundlevel.B．Becauseoftheexistenceofsoftsoil.C．Becauseoftheclimateandgeography.D．Becauseofthethicksandonthetop.4、289．Whatdoestheunderlinedword“eternal”probablymean?A．Non-stop.B．Ever-lasting.C．Real-life.D．High-end.24．（8分）Ifyoufeelyourselfturningintoanoldgrouch(脾氣壞的人),don’tworry—happinessisjustaroundthebend.Asurveyhasfoundthatalthoughhappinessdipsinthoseintheir30sand40s,peoplestarttofeelmorecontentwithlifeaftertheageof50.Howeveraneconomistfoundthatolderpeoplewillneveragainregaintheexcitementofyouth.Ratheritisthoughtthatwithage,individualsbecomemorepragmaticabouttheupsanddownsthatlifebringsandaccepttheirfortune.HequestionedthoseinBritain,SwitzerlandandGermanyandappliedthefindingstopeople’slifecycle.Mr.VanLandeghem,29,said:“Ahappinesscurvedoesnotnecessarilyimplythata65-year-oldprefershisownlifetothelifeofa25-year-old.”“Boththe25-year-oldand65-year-oldmightagreethatitisnicertobe25thantobe65.Butte65-year-oldmightneverthelessbemoresatisfied,ashehaslearnedtobesatisfiedwithwhathehas.”Itwassuggestedthemid-lifehappinessdipisbecausethisiswhenpeoplehavethemostresponsibilities—takingcareofafamily,payingamortgage(抵押貸款)andhavingademandingcareer.Themiddle-ageddipinhappinesswasalsocomparedtothatoflosingacloserelativeorsuddenlybecomingunemployed.Thestudyisjustoneofmanyputforwardasanindicatorofwhatmakesforahappylife.Psychologistsconcludedthathavingmoneymakesyouhappier,butonlyifyouhavealotmorethanyourfriendsandneighbors.Atthesametime,you’dbetterhaveenoughtietoenjoyyourselfinsteadofspendingallyourtimeonmakingmoney.Separateresearchfoundthatowningthehouseofyourdreams,thecaryoualwayslongedforandhavingmillionsinthebankdoesn’tstopthatdesiretokeepupwiththeJoneses(攀比).AndiftheJoneseshavemorethanyoudo,you’llbemiserable.Itseemsenvyatbeinglowerinthesocialpeckingorder(權(quán)勢等級)reducesthesatisfactionofbeingwelloff.Ifyoujustdowhatyouloveandyouaregoodat,whichsocietyalsovaluesmuch,youmayhaveahigherprobabilitytobehappy.Butifyourjobpaysless,howcanyousticktoitindisregardofresponsibilities?Happinessmeansdifferentthingsfromdifferentpointsofview,andpointofviewgrowsfromone’sexperienceandknowledge.Perhapsitcomeswithyouwhenyoudon’tneedtothinkaboutadultproblemsorwhenyouarewiseenoughtounderstandwhatsatisfactionis.1、Theunderlinedword“pragmatic”inparagraph2maymean________.A．realisticB．concernedC．nervousD．careful2、Accordingtothepassage,peopleintheir30sand40s________.A．mayfeelitmoredifficulttoexperiencehappinessB．maysensehappinessdeclinesowingtoothercomplicatedfactorsC．starttorealizeresponsibilityandriskmeanhappinessD．mayassociatehappinesswithmoneyandstatusandriskpursuinghappiness3、Itisimpliedinthepassagethat________.A．happinesscomeswhenyoucomplainlessB．lifeisfullofupsanddownsinfactC．a(chǎn)senseofresponsibilitybringsyouhappinessD．competingwithothersoftenmakesyoublue4、Whatmakesforahappylife?A．One’sfamily.B．One’smoney.C．One’swisdom.D．One’sstatus.5、Thebesttitleforthepassagemaybe________.A．happinessisU-shapedB．happinessisanexperienceC．happinessmakesyousatisfiedD．happinesscanbewonbyyourself25．（10分）WhenIwasinfourthgrade,Iworkedpart-timeasapaperboy.Mrs.Stanleywasoneofmycustomers.She’dwatchmecomingdownherstreet,andbythetimeI’dbikeduptoherdoorstep,there’dbeacolddrinkwaiting.I’dsitanddrinkwhileshetalked.Mrs.Stanleytalkedmostlyaboutherdeadhusband,“Mr.StanleyandIwentshoppingthismorning.”she’dsay.Thefirsttimeshesaidthat,soda(汽水)wentupmynose.ItoldmyfatherhowMrs.StanleytalkedasifMr.Stanleywerestillalive.Dadsaidshewasprobablylonely,andthatIoughttositandlistenandnodmyheadandsmile,andmaybeshe’dworkitoutofhersystem.Sothat’swhatIdid,anditturnedoutDadwasright.Afterawhilesheseemedcontenttoleaveherhusbandoveratthecemetery(墓地).Ifinallyquitdeliveringnewspapersanddidn’tseeMrs.Stanleyforseveralyears.Thenwecrossedpathsatachurchfund-raiser(募捐活動).Shewasspooningmashedpotatoesandlookinghappy.Fouryearsbefore,she’dhadtoofferherpaperboyadrinktohavesomeonetotalkwith.Nowshehadfriends.Herhusbandwasgone,butlifewenton.Iliveinthecitynow,andmypaperboyisaladynamedEdnawiththreekids.SheasksmehowI’mdoing.WhenIdon’tsay“fine”,shesticksaroundtohearmyproblems.She’slivedinthecitymostofherlife,butsheknowsaboutcommunity.Communityisn’tsomuchaplaceasitisastateofmind.Youfinditwheneverpeopleaskhowyou’redoingbecausetheycare,andnotbecausethey’regettingpaidtodoso.Sometimesit’sgoodtojustsmile,nodyourheadandlisten.1、Whydidsodagouptheauthor’snoseonetime?A．Hewastalkingfast. B．Hewasshocked.C．Hewasinahurry. D．Hewasabsent-minded.2、WhydidtheauthorsitandlistentoMrs.StanleyaccordingtoParagraph3?A．Heenjoyedthedrink. B．Hewantedtobehelpful.C．Hetookthechancetorest. D．Hetriedtopleasehisdad.3、Whichofthefollowingcanreplacetheunderlinedphrase“workitoutofhersystem”?A．recoverfromhersadness B．moveoutoftheneighborhoodC．turntoheroldfriends D．speakoutaboutherpast4、Whatdoestheauthorthinkpeopleinacommunityshoulddo?A．Openuptoothers. B．Dependoneachother.C．Payforother’shelp D．Careaboutoneanother.第三部分語言知識運(yùn)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(gè)選項(xiàng)中，選出可以填入空白處的最佳選項(xiàng)．26．（30分）完形填空（共20小題；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四個(gè)選項(xiàng)（ABCD）中，選出可以填入空白的最佳答案，并在答題卡上將該選項(xiàng)涂黑。Preparingfortomorrow Sixth-gradeschoolteacherMs．Sheltonbelievedinreadiness．Studentsrememberedhowshewalkedinonthefirstdayofclassandbeganwritingwordsofeighth-gradeonthe36．Theyquicklyprotestedthatthewordswerenotontheir37andtheycouldn’tlearnthem． Theirteacherinsistedthatthestudentscouldandwouldlearnthese38．Shesaidthatshewouldteachthemsomethingthatshouldbegiven．Ms．Shelton39bysayingthatoneofthestudentsintheclassroomcouldgoonto40,maybeevenbepresidentsomeday,andshewantedtopreparethemforthatday． Ms．Sheltonspokethosewordsmanyyearsago．41didsheknowthatsomedayoneofherstudents—JesseJackson—wouldtakethem42．Shebelievedthatiftheywerewellprepared,theycould43highgoals． RalphWaldoEmersononcesaid,“Peopleonlyseewhattheyare44tosee．”Ifthat’strue,thenitisalso45thattheyonlybecomewhattheyarepreparedtobecome．Andmanythingsinlifearejustaboutgettingready． “Iwanttobedoingsomethingmore46withmylifethanwhatIamdoingnow,”ayoungmanoncesaidtome．He47whathewasdoingwasjustnotthatimportant．Otherpeoplehavesaidthingstomesuchas,“Ionly48Ihadameaningfulrelationship．”And,“I’dreallyliketogetabetterjob,butIjustdon’tsee49．” Youfillintheblanks．Whatisityouwouldliketo50thatisn’thappening?Perhapstheansweristhatyouarenotyet51．Maybeyouneedmoretimetopreparebeforeyouaretrulyreadyforthatwhichyou52． Thinkoftodayasanotherchanceto53yourselffortheexcitingfutureyouarelookingfor．Todayisnotwasted．Ifyoudesiremorefrom54,thenyoucanusetodayastraining．Foryouwillexperienceonlywhatyouarepreparedto55．Somethingwonderfulcanhappen．Andyoucanusetodaytogetreadyfortomorrow．1、A．desk B．wall C．chalkboard D．door2、A．duty B．desk C．mind D．level3、A．words B．grammars C．pronunciations D．sentences4、A．started B．ended C．warned D．reminded5、A．greatness B．wealth C．honor D．failure6、A．Seldom B．Little C．Hardly D．Totally7、A．nervously B．eagerly C．seriously D．simply8、A．keep B．have C．set D．a(chǎn)chieve9、A．prepared B．forced C．a(chǎn)ttracted D．tempted10、A．proper B．exact C．legal D．true11、A．difficult B．significant C．pleasant D．interesting12、A．boasted B．behaved C．felt D.looked13、A．wish B．expect C．hope D．imagine14、A．what B．when C．why D．how15、A．survive B．happen C．gain D．win16、A．a(chǎn)dventurous B．a(chǎn)ctive C．ready D．intelligent17、A．concern B．a(chǎn)rrange C．a(chǎn)dore D．desire18、A．prepare B．enjoy C．imagine D．conduct19、A．history B．nature C．life D．marriage20、A．suffer B．experience C．struggle D．work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(gè)適當(dāng)?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）NowadaysChineseareusingthesolarcalendar.Butatthesametime,Chinesearealsousingtheirownlunarcalendar.Eachlunaryear1．(give)thenameofoneoftheseanimals:therat,theox,thetiger,thehare,thedragon,thesnake,thehorse,thesheep,themonkey,thecock,thedogandthepig.Thislistrepeats2．(it)everytwelveyears,3．isamainfeatureoftheChineselunarcalendar.EachChinesemonthstartsonthedayofthenewmoon,andthefullmoonalwayscomesonthe4．(fifteen)dayofthemonth.TheNewYear,5．(actual)wellknownastheSpringFestival,alwaysfalls6．January21standFebruary20th.Onthelastdayofeachlunaryear,theChinesewillhold7．bigfamilyreuniondinner.Allthemembersofafamily,withthe8．(except)ofmarrieddaughters,willtrytobepresentonthisfestivaloccasion,eveniftheyhavetotravelmanymiles9．(return)tothehomeoftheirparents.Afterthedinner,evenchildrenwillstay10．(wake)untilthemidnighttowelcomethenewyear.第四部分寫作（共兩節(jié)）第一節(jié)短文改錯(cuò)（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(cuò)誤，每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。增加：在缺詞處加一個(gè)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(cuò)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(cuò)誤及其修改均僅限一詞；2、只允許修改10處，多者（從第11處起）不計(jì)分。Susan’sfamilywasterriblepoor、OneChristmasEve,Susan’sfathersawthatSusanhadusedpieceofgoldwrappingpapertodecorateashoe-box,whereissoprecioustotheirfamily,andsheputitundertheChristmastree、Thenextmorning,Susantakestheboxtoherdadandsaid,“Thisisforyou,dad!”Butifheopenedit,hefounditwasempty、“Whydoyougivemeanemptyboxes?Don’tyouknowthegoldwrappingpaperissuchexpensivetous?”Herdadsaidangrily、Susancried,said,“Dad,itisn’tempty、Iblewkissesintoituntilitwasallfoil、”Hearingofthis,thedadfeltregretful,heheldSusaninhisarmsbutsaid“Sorry,mydear,Iloveyou!”、第二節(jié)書面表達(dá)（滿分25分）29．（25分）假定你是李華，10月14至16日成都將在城市廣場舉辦第五屆國際中國美食