2023學年高考英語模擬測試卷考生請注意：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．FormanydaysIhavebeentryingto________whatitisthatmakesJacksoannoyed.A．carryout B．figureoutC．watchout D．standout2．Youneverreallyunderstandaperson________youconsiderthingsfromhispointofview.A．if B．onceC．a(chǎn)s D．until3．Asa(n)________andeffectivemethod,expresswaynoisebarrierisaprimarymeasureusedtoreducetrafficnoise.A．correctional B．flexible C．economical D．investigative4．Janeestablishedaprogram,____youngpeopletotakepartinactivities____promotegreaterconcernfortheenvironment．A．toencourage;where B．havingencouraged;whereC．encouraging;that D．encouraged;which5．Hotthenightairwas,wesleptdeeplybecauseweweresotiredafterthelongjourney.A．a(chǎn)lthoughB．whileC．a(chǎn)sD．however6．Iappreciate______theopportunitytoworkinyourcompanytwoyearsago.A．giving B．togive C．beinggiven D．tobegiven7．Ann,ourdepartmentmaybenamedtheDepartmentoftheYearbecauseoftheoutstandingperformance._______.A．GoodtoknowB．I’llsayC．IhearyouonthatoneD．Can’targuewiththat8．Itisnotsurprisingthatshewaselected______monitor;sheis______verysmartgirlwhohastheabilitytoorganizetheclasswell.A．/;the B．/;aC．a(chǎn);a D．the;/9．I’veheardalotaboutyou.Yougotpromoted,right?______Manythanks.A．GoodforyouB．YouaskedforitC．ThereyouareD．You’vegonetoofar10．It_____havebeenTomthatparkedthecarhere,asheistheonlyonewithacar.A．may B．can C．must D．should11．Variousefforts________inthepastdecadestoprotecttheenvironment.A．hadmadeB．havemadeC．weremadeD．havebeenmade12．IamatalosswhyMikeisalways________everytimeImeethim.Believeitornot,weusedtobebestfriends.A．givingmethecoldshoulderB．makingmydayC．followingsuitD．beatingaroundthebush13．TheSmallGoosePagodainXi’an,oneofthe22SilkRoadrelicslocatedinChina,_______backin707duringtheTangDynasty.A．dated B．wasdatedC．dates D．isdating14．InApril,2009,PresidentHuinspectedthewarshipsinQingdao,____the60thanniversaryofthefoundingofthePLANavy.A．marking B．markedC．havingmarked D．beingmarked15．Frankly,Istillfeelconfusedabout_________hecouldmanagewithoutaccesstotheInternetforsuchalongtime.A．what B．why C．that D．how16．Lindarealizedshewasinthewrongandpromisedto________anewleaf.A．takeoverB．turnoverC．getoverD．goover17．Ithoughtithardtocompletetheprojectatfirst,butI______mymind.A．change B．havechangedC．hadchanged D．wouldchange18．Ithinkyou’vegottothepointachangeisneeded,otherwiseyou’llfail.A．when B．which C．where D．there19．Hawkingbelievestheearthisunlikelytobetheonlyplanet_____lifehasdevelopedgradually.A．that B．whyC．where D．whose20．WhatdoesPM2.5mean？It'saprofessional_____________indicatingtheconditionofairpollution.A．number B．markC．term D．item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）Parentsoftenbelievethattheyhaveagoodrelationshipwiththeirteenagers.Butlastsummer,JoannaandHenrynoticedachangeintheirolderson:suddenlyheseemedtobetalkingfarmoretohisfriendsthantohisparents.“Thedoortohisroomisalwaysshut,”Joannsnoted.TinaandMarknoticedsimilarchangesintheir14-year-olddaughter.“Sheusedtocuddleup(蜷伏)withmeonthesofaandtalk,”saidMark.“Nowwejokethatshedoesthisonlywhenshewantssomething.Sometimesshewantstobetreatedlikealittlegirlandsometimeslikeayounglady.Theproblemisfiguringoutwhichtimeiswhich.”Beforeage11,childrenliketotelltheirparentswhat’sontheirminds.“Infact,parentsarefirstonthelist.”saidMichaelRiera,authorofUncommonSenseforParentswithTeenagers.“Thiscompletelychangesduringtheteenyears.”Rieraexplained.“Theytalktotheirfriendsfirst,thenmaybetheirteachers,andtheirparentslast.”Parentswhoknowwhat’sgoingonintheirteenagers’livesareinthebestpositiontohelpthem.Tobreakdownthewallofsilence,parentsshouldcreatechancestounderstandwhattheirchildrenwanttosay,andtrytofindwaystotalkandwritetothem.Andtheymustgivetheirchildrenamentalbreak,forchildrenalsoneedfreedom,thoughyoung.Anotherthingparentsshouldrememberisthattobeafriend,notamanager,withtheirchildrenisabetterwaytoknowthem.1、“Thedoortohisroomisalwaysshut”suggeststhattheson

_______.A．keepshimselfawayfromhisparentsB．doesn’twanttobedisturbedC．isalwaysbusywithhisstudiesD．beginstodislikehisparents2、WhattroublesTinaandMarkmostisthat

________.A．theirdaughterisn’taslovelyasbeforeB．theydon’tknowwhattosaytotheirdaughterC．theycan’treadtheirdaughter’smindexactlyD．theirdaughtertalkswiththemonlywhensheneedshelp3、Whichofthefollowingbestexplains“thewallofsilence”inthelastparagraph?A．Teenagerstalkalotwiththeirfriends.B．Teenagersdonotwanttounderstandtheirparents.C．Teenagerstalklittleabouttheirownlives.D．Teenagersdonottalkmuchwiththeirparents.4、Whatcanbelearnedfromthepassage?A．Parentsareunhappywiththeirgrowingchildren.B．Parentsshouldtrytounderstandtheirteenagers.C．Parentsshouldbepatientwiththeirsilentteenagers.D．Parentshavesuitablewaystotalkwiththeirteenagers.22．（8分）InAmerica,parentstendtoencouragetheirchildrentodeveloptheirpotential(潛能)tothefullestextent.Fathersandmothersfrequentlyteachtheirchildrenbothambitionandtheconfidencenecessarytoworktowardtheirgoals.Americanparentsarealwaysactiveinconcentratingonwhattheirkidscando,notwhattheycan’t.Asaresult,millionsofAmericanboysandgirlsgrowuphopingtobecomeactorsandathletes,diplomatsanddoctors.Manyofthemevenwanttobecomepresident.Americanparentsoftenencouragetheirchildrentobecomeinvolvedinextraactivitiesofalltypesatschool,suchasstudentgovernment,sportsandmusic.Theybelievethatonlythroughtakingpartintheseactivitiescantheirchildrenbecomematureyoungadults.Asweallknow,schoolworkisimportant.Butparentsshouldrealizethatthesocialskillstheirchildrenlearnfromnaturalconversationswitheachotherareasimportantasschoolworkandtheskillstheywillneedinthefuturework.What’smoreimportantintheirworkisthattheirchildrenshouldhaveasoundknowledgeofphysicsortheabilitytocommunicateeffectively.Asarule,Chineseparentsdon’teducatetheirchildrenaboutthesamekindofambitionandconfidenceasAmericansdo,nordotheyencouragethesamelevelofparticipationinextraactivities.Childrenaretypicallyadvisedtostudyhardandpassexams.Theyhavetospendalotoftimeindoingmuchschoolworkeveryday.Itisagreatwasteoftimetodoso.NowmoreandmoreChineseparentshaverecognizedthattheyshouldpayattentiontodevelopingthepotentialoftheirchildren.IhopethatleadersinChineseeducationalcirclesshouldtakesomemeasurestodevelopthepotentialoftheirchildren.Iamveryconfidentaboutit.1、Fromthepassage,weknowtheAmericanparentspaymuchmoreattentionto.A．thesocialskillsthanChineseparentsB．theirchildren’sstudyinghardandwellC．whattheirchildrenwantbuttheycan’tD．extraactivitiesthanschoolwork2、Accordingtothepassage,Chineseparents.A．knowmorethanAmericanparentstoeducatetheirchildrenB．owningambitionandconfidenceisnecessaryandimportantC．paymuchmoreattentiontotheirchildren’sfinefutureD．don’tencouragetheirchildrentoparticipateinextraactivities3、Fromthepassage,wecaninfer.A．AmericanchildrenarebraveandadventurousB．AmericanchildrenaremoreactiveintheirstudiesC．ChinesechildrenhavetheabilitytocommunicateeffectivelyD．somethingshouldbedonetodevelopthepotentialofthechildreninChina4、What’sthewriter’sattitudetowardsChineseeducationreform?A．Neutral. B．Indifferent.C．Positive. D．Negative.23．（8分）MyneighborOrlandoisaparamedic(急救醫(yī)士).HeandhiswifearesomeofthenicestpeopleIhaveevermet.Afewyearsbackwestartedthissortof“favorwar”,whereoneofuswoulddosomethingfortheother,suchasshoveling(鏟)theirdrivewayorhelpingthembuildashed,andnexttimetheotherwouldtrytotopitwithanotherfavor.Yesterdaymorningtherewasmaybe2or3feetofsnowonthegroundandIrememberedheshoveledmydrivewayformelastsnowfall.SoItookoutmyshovelandtookcareofbothoursidewalksanddrivewaysbecauseitwasmyturntodoafavorback.IttookawhilebutIfinishedandgotintomycarforwork.WhatIdidn’trealizewasthatOrlandohadtoworkthatdaytoo.FastforwardtothismorningIgotaknockonmydoor.Itwashim.HeimmediatelyshookmyhandandinformedmethatbecauseIshoveledhisdrivewayandsidewalkforhim,hewasabletogettoworkearlier.Assoonashestartedhisshift,acallcamethroughthatayoungboywasinamedicalemergency.Luckilyheandhispartnerwereonlyabout2minutesaway,butthenextclosestambulancewasin10minutes.Thiskiddidnothave10minutes.Hebarelyhad2minutes.Becausemyneighborgottoworksooner,theyoungboygottolivehislife.Thisisn’tahumblebrag(吹牛).Thisistoinformothersthateventhesmallestfavorscanhavethebiggestimpacts.Itwasn’ttoomuchoftroubletoshovelhisdrivewayforhim,butbecauseIdid,theyoungkidgottoseehisfamilyagain,gobacktoschoolagain,talktohisfriendsagainandlivehislife.1、WhatcanweknowaboutthewriterandOrlando?A．Theyoncehadaconflict.B．Theysignedafavorableagreement.C．Theyfavorshovelingsnowtogether.D．Theyarealwaysreadytohelpeachother.2、Whosavedtheboybeforeitwastoolate?A．Thewriter. B．Theboy’sparents.C．Orlandoandhiswife. D．Orlandoandhispartner.3、Whatdoesthewriterintendtotellus?A．Neveraskfortrouble. B．Nofavoristoosmall.C．Onecannotalwaysbelucky. D．Don’tloseheartinanemergency.24．（8分）OpeningweekspecialsatMunchiesFoodHallAtthecornerofGreenandBrownStreetsinthecityMonday,7thofJanuaryuntilSunday,13thofJanuary2008Feastuntilyou’refull!ComedowntoMunchiesthisweektoenjoythespecialdishesonofferatallofourfoodoutlets.Orderfromthefollowing:?Succulentchickenrice?Spicysataybeef?Deliciousnoodledishes?Plumpporkchops?Seafoodspecialties?Crunchyvegetables?Sweettropicalfruit10%discountonallordersabove$20.00HalalfoodisavailableatthestallMalayFoodHeaven.WinPrizesandGifts!?Spend$20.00ormoreandwininstantprizesfromourluckydrawbox.?Collectafreepartyballoonandwhistleforeachyoungdiner.?Enjoyafreemealifyouarethefirstcustomerofthedayatanyofourstalls.?WinaholidaytoWestemAustralia.Afreeraffleticketisgivenwitheveryreceipt.Justfillinyourinformationandplaceyourentryintheboxprovided.WinnertobeannouncedinTheStraitsTimesonthe15thofJanuary.JoinintheFun!Between7:00pmand8:00pmeacheveninguntilthe10thofJanuary,yourfavoriteChannel3televisionactorsandsingerswillentertainyou:?MayLee?JackieChen?KimYap?KamalAutographsessionswillfolloweachperformance!Andwhowillbeourextraspecialmysterystar?ComedownonSaturdayatnoontofindout.1、MunchiesFoodHalldoesNOTsell________.A．porkB．beefC．lambD．chicken2、ThepricesatMunchiesare________.A．lowerthanusualB．lowerifyouspendS21.00C．lowerfortwopeopleD．bargainpricesfortheopening3、EveryonewhoeatsatMunchieswillreceivea________.A．freemealB．luckydrawcouponC．balloonandwhistleD．freeraffleticket25．（10分）TinyDeviceAllowsYouToTrackYourCarUsingYourSmartphoneHaveyoueverlostyourcaronaparkinglot?Ithappens.Youparkandgoshopping.Whenyougetback,youdon’thaveacluewhereyourcaris.Thenyoustartroamingaroundclickingonthepanicbuttononyourcarkeyssothealarmgoesoff.Itcanbefrustrating,especiallyonahot,sunnyday.Now,youdon’tneedtoturntoaGPSsystemortrackingservice.Nobodywantstopayexpensivemonthlysubscriptionfees.ACalifornia-basedstartupcompanyhascreatedatinydevice,TrackR,whichworkswithyoursmartphone.Itcouldtrackyourvehiclewithoutcostingyouafortune.It’seasy!InstallthefreeTrackRapponyoursmartphone,connecttheapptoyourdeviceandyou’rereadytogo!SimplyattachTrackRtowhateveryouwanttokeeptabson.Theentireprocessofsettingituponlytakes5minutesorless.ThenusetheTrackRapptolocateyourmissingiteminseconds.You’reprobablythinkingthatthisdeviceisveryexpensive…False!TrackRonlycosts$29!Youcanbuyitdirectlyfromthecompany’swebsite.Theyshipworldwideandyou’llreceiveyourTrackRwithinaweek.Aswesaidbefore,TrackRhasunlimitedpossibilities.Thedeviceissmallandunobtrusive(不引人注目的)enoughthatyoucanattachittoyourpet,yourkeys,yourbriefcaseandanythingelseyoudon’twanttolose.TrackRevencomeswithadouble-sidedadhesive(膠)soyoucanstickittoyourlaptoporunderyourbikeseat.Trackdownandpunishthethieveswhostealyourexpensivethings!1、Whydoestheauthormentionthelostcarinthefirstparagraph?A．Tostresstheimportanceofprotectingyourcar.B．TointroduceTrackR.C．Totellyounottobeworriedaboutit.D．Towarnyounottoparkyourcarcasually2、WhatdoweknowaboutTrackR?A．TrackRisfreeofcharge.B．TrackRappcostsyouonly$29.C．TrackRhelpsyoufindanythingyoulosewithinaweek.D．TrackRissoldtopeoplethroughouttheworld.3、Whatdoestheauthormeanby“keeptabson”inparagraph3?A．losesightofB．comeacrossC．keeptrackofD．takechargeof4、Thetextprobablycomesfrom.A．a(chǎn)bookreviewB．a(chǎn)popularsciencemagazineC．a(chǎn)sciencefictionD．a(chǎn)nofficialdocument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）Itwasthelastdayofthefinalexaminationinalargeeasternuniversity.Onthestepsofonebuilding,agroupofengineeringseniorsgathered,discussingtheexamduetobegininafew1Ontheirfaceswasconfidence.Thiswastheirlastexambeforetheywentonto2andjobs.Sometalkedofjobstheyalreadyhad;otherstalkedofjobsthey3get.Withallthisassuranceoffouryearsofcollege,theyfeltreadyandabletotake4oftheworld.Theapproachingexam,theyknew,wouldbea(n)5task,becausetheprofessorhadsaidtheycouldbring6booksornotestheywanted,requestingonlythattheydidnot7eachotherduringthetest.Aftertheyenteredtheclassroom8，theprofessorpassedoutthepapers.Andsmiles9onthestudents’facesastheynotedtherewereonlyfiveessay-typequestions.Threehourshadpassed10theprofessorbegantocollectthepapers.Thestudentsnolongerlookedconfident.Ontheirfaceswasafrightenedexpression.Papersinhand,noonespokeastheprofessorfacedtheclass.Helookedatthe11facesbeforehim,andthenasked,“Howmanycompletedallfivequestions?”12ahandwasraised.“Howmanyansweredfour?”Stillnohands.“Three?Two?”Thestudentsmovedrestlesslyintheirseats.“One,then?Certainlysomebodyfinished13.”Buttheclassremainedsilent.Theprofessorputdownthepapers.“ThatisexactlywhatI14,”hesaid.“Ijustwanttoimpressuponyouthat,15youhavecompletedfouryearsofengineering,therearestillmanythingsaboutthe16youdon’tknow.Thesequestionsyoucouldn’tanswerarerelatively17ineverydaypractice.”Thensmiling,headded,“Youwillall18thiscourse,butremember—evenifyouarenowcollegegraduates,youreducationhasjust19.”Theyearshave20thenameofthisprofessor,butnotthelessonhetaught.1、A．seconds B．hours C．minutes D．days2、A．graduation B．discussion C．education D．interview3、A．must B．would C．haveto D．usedto4、A．hold B．charge C．control D．place5、A．interesting B．hard C．unusual D．easy6、A．no B．either C．a(chǎn)ll D．a(chǎn)ny7、A．talkto B．lookat C．referto D．listento8、A．nervously B．quickly C．joyfully D．curiously9、A．changed B．a(chǎn)ppeared C．froze D．stopped10、A．then B．a(chǎn)s C．a(chǎn)fter D．before11、A．pleased B．surprised C．worried D．moved12、A．Once B．Not C．Only D．Even13、A．a(chǎn)ll B．none C．it D．one14、A．expected B．enjoyed C．hated D．wondered15、A．eventhough B．a(chǎn)sthough C．nowthat D．rightnow16、A．exam B．question C．subject D．college17、A．valuable B．difficult C．strange D．common18、A．fail B．pass C．take D．start19、A．completed B．begun C．failed D．succeeded20、A．weakened B．remembered C．strengthened D．forgot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?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）Duringthepasttenyears,traditionalChinesemedicine(TCM)hasbeengaining1．(popular)acrosstheworld.Thisstyleofhealthcarehasspreadto183countries.Uptonow,approximately100internationalagreements2．(sign)withChinesegovernmentonTCMcooperation.Oneofthereasonsforsuchagrowingtrendisprobablyduetotheincreaseof3．(science)researchintoTCM.SinceTuYouyou,aChinesescientistwasawardedNobelPrizeforherdiscoveryofthedrugqinghaosu,TCMhasbecomeevenmore4．(globe)famous.Whilequiteafew5．(explain)havebeengiventosupportTCMtheories,itisstillfacedwiththechallengein6．(prove)tothepublicthatithascertaineffectswhenusedinmedicaltreatment.That’stosay,itissignificantin7．longrunforTCMtoteamupwithWesternmedicine.Scientistsholdthebelief8．usingthecollectiveknowledge,ratherthanregardingthetwoapproaches9．beingincompetitioniswherethepotentialforitsenormouseffects10．_(lie)in.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，請你修改你同桌寫的以下作文。文中10處語言錯誤，每句最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除和修改。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：在錯的詞下面一橫線，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。AftervisitedtheBeijingNormalSchool,MadamePengtookSashaandMalia,mymother,andmetheForbiddenCity,whichislocatedrightintheheartofBeijing、Asanamesuggests,theForbiddenCityislargerenoughtobeacityofitsown–itincludesnearly1,000buildingandnearly10,000rooms、In1925,theForbiddenCitywasturningintoamuseumsomuchthatvisitorslikeusfromallovertheworldcanstrollthroughmanyofthebeautifulroomsandoutdoorspace、TheForbiddenCityisfarverylargetofullyexperienceinasinglevisit、WhileweloveourvisittotheForbiddenCity,weonlywishwehavemoretimetoseeeverything、Andagain,I’mnotsurewhethertherecouldeverbeenoughtimetofullyappreciatealloftheartandhistorywithinthisextraordinaryplace、第二節(jié)書面表達（滿分25分）29．（25分）假如你正在參加學校舉辦的一個英語演講比賽，就如何應(yīng)對全球變暖這一話題發(fā)表自己的見解，號召同學們過低碳生活，為減少二氧化碳(CO2)排放做貢獻。請就這一話題寫一篇演講稿，陳述你自己的觀點。演講稿應(yīng)包括以下內(nèi)容：1．節(jié)能減排，低碳生活，人人可為。2．改變以往的家庭生活習慣。(用電，用水)3．出行使用公共交通或騎自行車。4．……要求：1.詞數(shù)：100左右。2．可適當增加細節(jié)內(nèi)容，以使行文連貫。3．開頭和結(jié)尾已經(jīng)給出，不計入總詞數(shù)。4．提示：低碳生活lowcarbonlife；碳排放carbonemission；燃燒fuelGoodmorning,everyone，Mytopictodayishowtolivealowcarbonlife.Asweallknow,theearthisbecomingwarmerandwarmerduetotheglobalclimatechange._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

2023學年模擬測試卷參考答案（含詳細解析）第一部分（共20小題，每小題1.5分，滿分30分）1、B2、D3、C4、C5、C6、C7、A8、B9、A10、C11、D12、A13、C14、A15、D16、B17、B18、C19、C20、C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、In1917OrvilleWrightpredictedthat“theaeroplanewillhelppeaceinmanyways--–inparticularIthinkitwillhaveatendencytomakewarimpossible.”Earlierin1904,AmericanjournalistJohnWalkerdeclared,“Asapeacemachine,thevalueoftheaeroplanetotheworldwillbebeyondcomputation.”Thiswasn’tthefirstgrandpromiseoftechnology.InthatsameyearJulesVerneannounced,“Thesubmarine(潛艇)maybethecauseofbringingbattletoastoppage.”AlfredNobel,sincerelybelievehisdynamite(火藥)wouldbeawarobstacle:“Mydynamitewillsoonerleadtopeacethanathousandworldconventions(公約).”Similarly,whenHiranMaxim,inventorofthemachinegun,wasaskedin1893,“Willthisgunnotmakewarmoreterrible?”heanswered,“No,itwillmakewarimpossible.”GugliemoMareconi,inventoroftheradio,toldtheworldin1912.“Thecomingofthewirelesstimewillmakewarimpossible,becauseitwillmakewarridiculous.”GeneralJamesHarbord,chairmanoftheboardofRCAin1925,believed,“RadiowillservetomaketheconceptofPeaceonEarth,GoodWillTowardMenareality.”DavidNye,ahistorianoftechnology,addstothelistofinventionsimaginedasabolishingwarforeverandleadingtouniversalpeacethehot-airballoon,poisongas,landminesandlaserguns.Itisnotthatalltheseinventionsarewithoutbenefits—evenbenefitstowarddemocracy（民主）.Rather,it’sthecasethateachnewtechnologycreatesmoreproblemsthanitsolves.“Problemsaretheanswerstosolutions,”saysBrianArthur.Mostofthenewproblemsintheworldareproblemscreatedbyprevioustechnology.Theseproblemsarenearlyinvisibletous.Everyyear1.2millionpeopledie