陜西西西安地區(qū)西工大附中2024屆高三3月份模擬考試英語試題含解析

陜西西西安地區(qū)西工大附中2024屆高三3月份模擬考試英語試題請考生注意：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(rèn)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．Ithoughtithardtocompletetheprojectatfirst,butI______mymind.A．change B．havechangedC．hadchanged D．wouldchange2．Heswitchedoffthelightandwasabouttoleavetheclassroomandonlythen____torainheavily.A．itbeganB．itbeginsC．doesitbeginD．diditbegin3．—Hello,Paul,doyouliketojoinusinplayingfootball?Weneedonemorepersonto____ateam.—Yes,I’dliketo.A．pickup B．pickout C．makeup D．makeout4．．Althoughitinthedesertmostoftheyear,peoplestilllivethere．A．doesn’train B．didn’train C．hasn’trained D．hadn’trained5．Agathadidn’ttellme______shewouldpickuphersonfromschool.A．whichB．whenC．whereD．what6．Recently,aprogrammercriticizedthe“996”workschedule______employeesworkfrom9amto9pm,6daysaweek,withtheprospectofendingupinanintensivecareunit.A．where B．when C．which D．whose7．Aftercollege,hewasemployedinamiddleschoolandthereeversince.A．wouldworkedB．hadworkedC．workedD．hasworked8．Uptillnow,therehasbeennoscientificevidenceabout________causedthedeathofdinosaurs.A．whatisitthat B．whatitwasthat C．itwaswhat D．whatisit9．Beijing’snewinternationalairportintooperationin2019willserve72millionpassengersannually.A．beingputB．tobeputC．putD．toput10．Mikewasusuallysocareful,thistimehemadeasmallmistake.A．yet B．still C．even D．thus11．—Whydoyoulookveryupset?—Theelectricitywascutoffsuddenlyandmyessay________unfinishedsince.A．wasleft B．hasleftC．hadbeenleft D．hasbeenleft12．It’snaturalthatIdidn’trecognizeherimmediatelyIsawher._______,it’salmost5yearssincewemetlast.A．Afterall B．InadditionC．What’smoreD．Inparticular13．—Ken,________,butthemusicyouareenjoyingistooloud.—Oh,I’mterriblysorry.I’llturnitdownonthespot.A．IamreallytiredofthisB．IneedyourhelpC．I’dliketotalkwithyouD．Ihatetosaythis14．WhentheadmissionletterfromHarvardUniversityarrived,Ben'sparentswereandthrewabigparty.A．intheredB．tickledpinkC．a(chǎn)swhiteasasheetD．inabluemood15．---Canyoutellusyour________forhappinessandalonglife？---Livingeverydaytothefullest，definitely.A．recipe B．effortC．content D．demand16．Theworldisnotalways______wewishittobe.A．that B．whichC．what D．where17．—Goodmorning.MayIhelpyou?—No,thankyou.I’mjustlookingaround.—________A．It’suptoyou. B．Howareyoufeelingtoday?C．Thanksforcomingtoseeme. D．Takeyourtimethen.18．Sometimes,thekindoffoodweserveapersonsuggests________weshowourgratitude.A．when B．whatC．why D．how19．---DoyouthinkIshouldjointhesinginggroup,Mary?---______IfIwereinyourshoes,Icertainlywould.A．Noneofyourbusiness．B．Itdepends.C．Whynot?D．Idon’tthinkso.20．WaterKnowsAnswersbyaJapaneseauthor,________into16languages,hasbecomeabest-sellerallovertheworld.A．havingtranslated B．tobetranslatedC．beingtranslated D．translated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）Theyearwas1932.AmeliaEarhartwasflyingalonefromNorthAmericatoEnglandinasmallsingle—enginedaeroplane.Atmidnight,severalhoursaftershehadleftNewfoundland,sheranintobadweather.Tomakethingsworse,heraltimeter(高度表)failedandshedidn’tknowhowhighshewasflying.Atnight,andinastorm,apilotisingreatdifficultywithoutanaltimeter.Attimes,herplanenearlyplunged(沖)intothesea.Justbeforedawn,therewasfurthertrouble.Amelianoticedflames(火焰)comingfromtheengine.Wouldshebeabletoreachland?Therewasnothingtodoexcepttokeepgoingandtohope.Intheend,AmeliaEarhartdidreachIreland,andforthecourageshehadshown,shewaswarmlywelcomedinEnglandandEurope.WhenshereturnedtotheUnitedStates,shewashonoredbyPresidentHooverataspecialdinnerintheWhiteHouse.Fromthattimeon,AmeliaEarhartwasfamous.Whatwassoimportantaboutherflight?AmeliaEarhartwasthefirstwomantoflytheAtlanticOceanalone,andshehadsetarecordoffourteenhoursandfifty—sixminutes.Intheyearsthatfollowed,AmeliaEarhartmadeseveralflightsacrosstheUnitedStates,andoneachoccasion(時刻)shesetanewrecordforflyingtime.AmeliaEarhartmadetheseflightstoshowthatwomenhadaplaceinaviation(航空)andthatairtravelwasuseful.1、WhichofthefollowingstatementsisNOTthedifficultywhichAmeliaEarhartmetinherflightfromnorthAmericatoEngland?A．Shewascaughtinastorm. B．Thealtimeterwentoutoforder.C．Herenginewentwrong. D．Shelostherdirection.2、WhenAmeliaEarhartsawflamescomingfromtheengine,whatdidshedo?A．Shedidnothingbutprayforherself.B．ShechangedherdirectionandlandedinIreland.C．Shecontinuedflying.D．Shelosthopeofreachingland.3、WhichofthefollowingstatementswasNOTmentioned?A．ShewasthefirstwomanwhosucceededinflyingacrosstheAtlanticOceanalone.B．Sheshowedgreatcourageinovercomingthedifficultiesduringtheflight.C．ShewaswarmlywelcomedinEngland,EuropeandtheUnitedStates.D．Shemadeplanstoflyaroundtheworld.4、Whichofthefollowingwouldbethebesttitleforthepassage?A．AmeliaEarhart—FirstAcrosstheAtlantic.B．AmeliaEarhart—PioneerinWomen’sAviation.C．ANewRecordforFlyingTime.D．ADangerousFlightfromNorthAmericatoEngland.22．（8分）OnthemorningofSeptember7th,19-year-oldRyanHarrisand40-year-oldStonieHuffman,twoSitka,Alaskaresidents,tookoffontheir28-footboatinsearchoffish.Twomilesintotheocean,theirboatbegantohavesomeproblems.Theymanagedtofixtheproblems,butdecidedtoheadbacktoshoreanyway.However,beforetheycouldcallforhelporgrabalifejacket,aneight-footwaveslammedhardagainsttheirboatandoverturnedit,throwingbothmenintothecoldAlaskanwaters.Stranded,theybegantolookaroundtoseewhattheycouldgrabontoandsawacoupleoftheemptyfishingboxesfromtheboat,floatingaround.Ryanmanagedtoclimbinsideone.Stonie,however,wasnotasluckyandmanagedtoonlygrabontothelidofthebox.Soon,theybothstarteddriftingapart.WhileRyancontinuedtobobupanddowninthebox,thewavesstartedcarryingStonieaway.Butasluckwouldhaveit,hecaughtsightofoneofthelifesuitsfromtheirboatfloatingintheoceanandmanagedtograbit.Thoughputtingitonandhangingontothelidatthesametimewasnotaneasytask,Stoniemanageditandthenbeganhislongswimbacktoshore.Heendeduponadesertedpatchoflandabout25milesnorthwestofSitka,wherehehadtowaituntilSaturdaymorningalmost24hoursafterthefishingtripbegan,forrescuerstofindhim.Meanwhile,19-year-oldRyancontinuedtodriftaroundtheoceantryingtostayaliveandhopingsomeonewouldfindhim.Thebraveteenagerrepeatedhimselfoverandoveragain,“I’mRyanHunterHarrisandI’mnotgoingtodiehere.”Hewassurehewouldberescued.TwohoursafterhisfriendwasrescuedandabletoguidetheCoastGuardand,26hoursaftertheadventurebegan,Ryanwasfinallyfoundandbroughtbacktoshore.Whatwasamazingwasthatbesidesafewscratches,theyoungsterwasinperfecthealth.Willheeverventureoutonafishingtripagain?Onlytimewilltell!1、WelearnthatonRyanandStonie’swaybacktoshore,.A．theyhadexpectedtheywouldencounterdangerB．theywerestruckbyabigwaveallofasuddenC．theytriedtofixtheproblemsoftheirboatD．theywerefrightenedbymanybigwaves2、Whatdoestheunderlinedword“Stranded”inParagraph2mean?A．Trapped. B．Injured.C．Encouraged. D．Puzzled.3、Paragraph4showswhenRyanwasdriftingaroundtheocean,he.A．wasfrightened B．a(chǎn)musedhimselfC．becamehopeless D．stayedpositive4、Thewriterfindsitsurprisingthat.A．Ryanwasfinallyfound B．ittooksolongtofinallyfindRyanC．Ryanwasonlyslightlyinjured D．Ryandecidedtogoonafishingtripagain23．（8分）Whatcanbebetterthanasweettreatwithhealthbenefits?Asithappens,ourfavouriteFebruaryfood,chocolate,hasafewshinningcharacteristics.ItcomesfromtheTheobromacacaotree(foodfortheGods),fromabeanthatgrowsonthattropicaltree.ChocolateoriginatedinMexicoandCentralandSouthAmerica,butWestAfricanowproducesmostoftheworld’scocoa.LookforfairtradechocolatethatmeetsenvironmentalandlabourstandardsatnaturalfoodsmarketsinKitsilanoandtheWestEnd,atKarmavoreinNewWestminsterandatNature’sFareMarketsthroughouttheprovince.Darkorsemisweetchocolateistypicallyavegan(素食)product.Becausechocolatecontainsantioxidants（抗氧化劑）thatpreventtheoxidation（氧化）ofLDL(bad)cholesterol（膽固醇）,ithasgainedareputationofbeingbeneficialforourhearthealth.Eateninanappropriateamount,chocolatemaylowerbloodpressure.Chocolateisalsoasourceofiron–a“preciousmetal”whenitcomestohumanhealth.Aspartofredbloodcells,ironplaysacentralroleintransportingoxygentothebodyandcarryingawaythewasteproductcarbondioxide.Eachday,welosetinyamountsofironincellsthataremissingfromskinandtheinnerliningoftheintestine(腸壁).Ifourintakeisnotenoughtoreplaceourlosses,atiredfeelingandsensitivitytocoldmaydevelop.Withfurtherconsuming,peoplefeelexhausted,chillyandevenheadaches;theskinmayappearpale.Sinceironabsenceissuchanobviousconditionandeasilydiagnosed,ifyouhaveanydoubtsaboutyourironlevel,havealabtestdone.Wearegoodatrecyclingiron,however,lossesmustbereplaced.TwooftheChocolateButterBallsintherecipe(食譜)belowwillprovideonequarteroftherecommendedintakeofeightmgironfortheday.1、Whichregionproducesmostoftheworld’scocoanow?A．MexicoB．CentralAmericaC．SouthAmericaD．WestAfrica2、Whyischocolatebeneficialforourhearthealth?A．ItcontainsantioxidantsB．Itcomesfromthecacaotree.C．ItoriginatesinMexico.D．Itisasweettreat.3、Whatdoes“chilly”inthethirdparagraphmean?A．easytobeangryB．havingafeverC．sensitivetocoldD．feelingtired4、Fromwhichisthetextprobablytaken?A．Abiologytextbook.B．Ahealthmagazine.C．Aresearchpaper.D．Atravelbrochure.24．（8分）AndthentherewerenineThepasttwodecadeshaveseenastronomers’catalogueofplanetsexpandovertwohundredtimes,asnewtechniquesandbettertelescopeshavefoundmorethan2,000ofthemorbitingstarsotherthanthesun.Butinthesolarsystemitself,thelistofplanetshasactuallyshrunk,Pluto（冥王星）havingbeendowngradedfromthatstatusin2006.Thenumberofthesun’splanetarycompanionshasthusfallenfromninetoeight.Now,apairofastronomersfromtheCaliforniaInstituteofTechnologythinktheyhaveevidencethatwillrestorethesun’srecordtoitspreviousvalue.TheiranalysisofobjectsorbitingintheKuiperBelt（柯伊伯帶）,aringoffrozenasteroids（小行星）thatcirclebeyondtheorbitofNeptune(andofwhichPlutoisnowregardedasthelargestmember),suggeststothemthatsomethingabouttentimesasmassiveasEarthhaschangedthoseorbits.Ifyouknewwheretolook,thisplanet-sizedobjectwouldbevisiblethroughasuitabletelescope.AndKonstaninBatyginandMichaelBrownbelievetheydoknow.AstheywriteintheAstronomicaljournal,theyhaveanalyzedtheorbitsofKuiperBeltobjectsandfoundsixthatbehaveinapeculiarway.Asthediagramshows,thepointsofclosestapproachoftheseobjectstothesun,knownastheirperihelia（近日點）,almostcoincide.Moreover,theseperiheliaalllieneartheecliptic（黃道）---theplaneofEarth’sorbitandalso,approximately,thatoftheotherplanets---whiletheobjects’orbitsareallangledat30°belowtheecliptic.Thechanceofallthisbeingacoincidence,thetworesearchersestimate,isaboutsevenin100,000.Ifitisnotacoincidence,itsuggeststhesixobjectshavebeenguidedintotheirorbitsbythegravitationalinterventionofsomethingmuchlarger.AcomputeranalysisDrBatyginandDrBrownperformedsuggeststhissomethingisaplanetweighing5-15timesasmuchasEarth,whoseperihelionisontheoppositesideofthesunfromthecluster,andwhichthusorbitsmainlyontheothersideofthesolarsystemfromtheobjectsitsorbithasaffected.Thisplanet’sperihelionwouldbe200timesfartherfromthesunthanEarth’s,andthefarendofitsorbitmightbeasmuchassixtimesthatdistanceaway.Thisgivesasearchzone,andDrBatyginandDrBrownareusingSubaru,aJapanesetelescope,toperformthatsearch.GivenotherdemandsonSubaru’stime,itmighttakefiveyearsforthissearchtofind(ornotfind)thehypotheticalplanet.Butlookingatsomeexistingdatafrom.TheWidefieldInfraredSurveyExplore,asatellite,mightalsoshowit,ifitistheretobeseen.Ironically,itwasDrBrownasmuchasanyonewhowasresponsibleforPluto’sdowngrading,forhediscoveredEris,anobjectalmostasbigasPluto,in2005.ThatdiscoverydidmuchtodamagePluto'splanetaryproof.Byhisownadmission,hewasskepticalthattheanomaliesheandDrBatyginhaveinvestigatedactuallywouldpointtotheexistenceofareplacementninthplanet.Heisaskepticnolonger.Whetherheisactuallyrightmaysoonbecomeapparent.1、AccordingtoDrBatyginandDrBrown’sresearch,itisquitepossiblethat________.A．PlutowillrestoreitsstatusasaplanetofthesolarsystemB．thesixobjectsintheKuiperBeltsharingsomesimilaritiesisamerecoincidenceC．therearenineplanetsinthesolarsystemD．Erisisareplacementninthplanetofthesolarsystem2、WhichofthefollowingisNOTtrueaboutthehypotheticalplanet?A．ItmayhavechangedtheorbitsofsixobjectsintheKuiperBelt.B．Youcanseeitthroughadomestictelescopeifyouknowwheretolook.C．Comparedtoearth,thedistancefromitsperiheliontothesunisabout200timeslarger.D．Asatellitemaybeabletoprovidesomeevidenceofitsexistence.3、Whatdoestheunderlinedwordanomaliesstandfor?A．Sixobjectsbehavinginapeculiarway.B．Pluto’sdowngrading.C．ThediscoveryofEris.D．Someexistingdata.4、Thepurposeofthethirdparagraphisto________.A．explainwhythescientistsbelievethereisanunfoundplanetB．showhowthescientistsanalyzetheorbitsofKuiperBeltobjectsC．tellusthattheperiheliaofthesixobjectsalmostcoincideD．introducethetwoscientists’articleintheAstronomicalJournal25．（10分）ItiswidelyknownthatanyEnglishconversationbeginswithTheWeather.SuchafixationwiththeweatherfindsexpressioninDr.Johnson’sfamouscommentthat“WhentwoEnglishmeet,theirfirsttalkisofweather.”ThoughJohnson’sobservationisasaccuratenowasitwasovertwohundredyearsago,mostcommentators(評論員)failtocomeupwithaconvincingexplanationforthisEnglishweather-speak.BillBryson,forexample,concludesthat,astheEnglishweatherisnotatallexciting,theobsessionwithitcanhardlybeunderstood.Hearguesthat”Toanoutsider,themoststrikingthingabouttheEnglishweatheristhatthereisnotverymuchofit.”Simply,thereasonisthattheunusualandunpredictableweatherisalmostunknownintheBritishIsles.JeremyPaxman,however,disagreeswithBryson,arguingthattheEnglishweatherisbynatureattractive.Brysoniswrong,hesays,“becausetheEnglishpreferencefortheweatherhasnothingtodowiththenaturalphenomena(現(xiàn)象).”Theinterestislessinthephenomenathemselves,butinuncertainty.”Accordingtohim,theweatherinEnglandisverychangeableanduncertainanditattractstheEnglishaswellastheoutsider.BrysonandPaxmanstandforcommonmisconceptionsabouttheweather-speakamongtheEnglish.Bothcommentators,somehow,aremissingthepoint.TheEnglishweatherconversationisnotreallyabouttheweatheratall.Englishweather-speakisasystemofsigns,whichisdevelopedtohelpthespeakersovercomethenaturalreserveandactuallytalktoeachother.Everyoneknowsconversationsstartingwithweather-speakarenotrequestsforweatherdata.Rather,theyareroutinegreetings,conversationstartersortheblank“fillers”,Inotherwords,Englishweather-speakisameansofsocialbonding.1、TheauthormentionsDr.Johnson’scommenttoshowthat________.A．mostcommentatorsagreewithDr.JohnsonB．Dr.JohnsonisfamousforhisweatherobservationC．thecommentwasaccuratetwohundredyearsagoD．Englishconversationsusuallystartwiththeweather2、Whatdoestheunderlinedword“obsession”mostprobablyreferto?A．Asocialtrend. B．Anemotionalstate.C．Ahistoricalconcept. D．Anunknownphenomenon.3、Accordingtothepassage,JeremyPaxmanbelievesthat________.A．BillBrysonhaslittleknowledgeoftheweatherB．thereisnothingspecialabouttheEnglishweatherC．theEnglishweatherattractspeopletotheBritishIslesD．Englishpeopletalkabouttheweatherforitsuncertainty4、Whatistheauthor’smainpurposeofwritingthepassage?A．ToexplainwhatEnglishweather-speakisabout.B．ToanalyzemisconceptionsabouttheEnglishweather.C．TofindfaultwithbothBillBrysonandJeremyPaxman.D．ToconvincepeoplethattheEnglishweatherischangeable.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）完形填空（共20小題；每小題1.5分，滿分30分）閱讀下面短文，從短文后所給各題的四個選項（A、B、C和D）中選出能填入空白處的最佳選項，并在答題卡上將該項涂黑。MyhusbandandIsatoutside.Asmallchildaboutthreecameupthestreet,accompaniedbyhermother.Asshesawanothergirlafewfeetaway,shegaveheradmiringcomment,“Mommy,Ilikeherdress.”Hermom1,“Well,whydon’tyougoandtellher?”Thelittlegirlwalked2towardthegirlwearingtheprettydress.Theotherone,3thesameage,wasstandingwithher4turned,alongsideherparents.Theyhadnotheardthecompliment(贊美).Receivingnoanswer,thislittleone5Myhusbandsaidtotheothergirl,“6wantstotellyousomething.”Assheturnedaround,7wasmade.Onceagain,thelittleone8“Ilikeyourdress,”anduponhearingthosewords,theotheronegaveherabigsmileandexcitedly9“Look,it’saspinning(旋轉(zhuǎn))dress!”,atwhichmomentshebegantospin.Bothofthemsmiledwidely.Now,theonestoppedspinningandsaid,“It’smyfavoritedressandIhave(a)10thatmatch!”She11runningtowardastroller(嬰兒車)parkednearby.Themomanddaughterstartedto12downthestreet,13theencounter(邂逅)hadended.Momentslater,the“spinningdressgirl”reappeared,shoesinhand,14hernewfriendwhohadseeminglydisappeared.Now,anelderlycouple,seatedonabench,hadobviouslybeen15ofallthis.Theman16thechild,saying,“There’ssomeonecomingbehindyou.”Thenwesawoneshowedandtheother17thebeautifulshoes.Ifyoucanmakea18better,doit.Ihavenoideahowmanyothersthateveningmighthave19thisact,hopingtohelpgoodthingstohappen.Butsuchbriefmoments,20together,makeupwhatmightverywellbetheimportanttimesinourlives.1、A．replied B．scolded C．laughed D．required2、A．secretly B．shyly C．heavily D．suddenly3、A．usually B．hopefully C．likely D．luckily4、A．back B．head C．nose D．hand5、A．shouted B．left C．cried D．hesitated6、A．Anyone B．Someone C．Everyone D．Noone7、A．difference B．a(chǎn)dvance C．connection D．impression8、A．suggested B．a(chǎn)pologized C．explained D．a(chǎn)nnounced9、A．turned B．shared C．jumped D．a(chǎn)greed10、A．shoes B．socks C．shirt D．hat11、A．tookoff B．turneddown C．puton D．madeup12、A．lead B．look C．head D．get13、A．remembering B．hoping C．saying D．thinking14、A．comingacross B．lookingfor C．shoutingat D．callingon15、A．watchful B．careful C．proud D．fond16、A．calmed B．comforted C．stopped D．seated17、A．wore B．a(chǎn)dmired C．compared D．bought18、A．moment B．life C．girl D．dress19、A．learned B．performed C．praised D．observed20、A．seized B．spent C．threaded D．lost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(dāng)?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）語法填空Eachyear1．(thousand)oftouristsvisitthepolarregionsoftheArcticandAntarctica.ButtheincreasingnumberofpeopletravelingtotheendsoftheEarthcanhave2．negativeeffectonfragileecosystems.Shouldtourists3．(allow)tovisitpolarregions?About40,000touristsvisitAntarcticaeachyear.MorethanfivemilliontraveltotheArcticandsub-Arctic.Transportingtouriststotheregions4．(increase)shipandairplanetraffic,addingtotheriskofpollution,oilspills,andother5．(environment)damage.Becausetheplaceswherewildlifeisaccessible6．(be)fewinnumber,touristtrafficcanbecomeconcentratedinspecificareas,7．

(put)Arcticvegetation(植被)atrisk.Otherssaythataccess8．theseveryspecialpartsoftheworldshouldnotberestrictedtoonlyresearchersandscientists.Polartourismallowspeopletodevelopdeep9．（person）connectionswithpolarregions.“Those10．traveltotheArcticorAntarcticaoftenbecomecheerleadersforsupportingthoseplaces.”JimSano,vicepresidentfortravelandconservationatWorldWildlifeFund,toldTFK.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。每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僅限一詞；2、只允許修改10處，多者（從第11處起）不計分。DearEditor,I’mamiddleschoolstudent、Iamwritingtotellyousomethingaroundus、Nowadays,asthedevelopmentofChina’surbanization,thousandsofpeoplemoveintocities,leavetheirchildrenathome、However,manyoftheseleft-behindchil