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保密★启用前2020年高三模拟考试英语试题注意事项：1.答题前，考生务必将自己的姓名、座号、考号填写在答题卡和试卷指定位置上。2.回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。3.考试结束后,将本试卷和答题卡一并交回。第一部分阅读（共两节，满分50分）第一节（共15小题;每小题2.5分，满分37.5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。AIfyouwanttolearnwhyeverythingisusuallycheaper,andwhatitemsarethebestdealsatyourlocalorchaindollarordiscountstore,storeemployeeshavealotofusefulinformation.Theytendtoknowwhatshopperswant—evenbeforeshoppersknowthemselves.EveryonebuysunnecessarythingsWhetheryoushopatachaindollarstoresuchasDollarTree,FamilyDollaroryourlocal99centsstore,noteverythingthat'sonsaleisnecessarilyworthpurchasing.BryanWaring,aformerDollarTreeemployee,saysthatyou'renotaloneinbuyingmorethannecessaryfromthesestores.Itseemsbasic,buteveryonefallsforthistrap,hesays.Yougointoastorewhereeverythingischeap,andyouwalkoutwiththingsyoudon'tneed.”Hesuggestsgoingintoastore—yes,eventhedollarstore—withachecklistofthingsyoutrulyneed.EverythingischeaperaftertheholidayseasonPatricia,aseasonalworkerataDollarTree,saysthatthepost-Christmasseasonmeansevenmoredealsoneverythingfromdecorationstosweets.AfterChristmas,allthegiftwrappaperwentto50cents,andallChristmasitemswerehalfprice,”shesays.Evencandybarsare89centsversus$1.ProductsarelessexpensivebecauseoftheirsizeInorderfordollarstorestokeeptheirpriceslow,productsizesareusuallysmallerthannormal,accordingtoCheapism.Dollarstoresareattheonlyonesguiltyofthistrick.CheapismalsoreportsWalmartisguiltyofdoingthesamethingtoattractcustomers.1.WhatisBryan'sadviceagainstbuyingunnecessarythings?A.Makingapurchasealone.B.Writingato-buylistahead.C.Shoppingatyourlocalstore.D.Buyingbasicthingsseparately.2.WhichofthefollowingisabettertimeforshoppingaccordingtoPatricia?A.IntheChristmassales.B.Ataparticulardiscount.C.AftertheChristmasseason.D.Duringsomeholidayseasons.3.Howdostoresmaketheirproductscheaper?A.Byreducingproductsizes.B.Byloweringproductcosts.C.Byadoptingdiscountstrategies.D.Byattractingmorecustomers.BItwasjustanormaldayforRuthMiller,a63-year-oldwomanuntileverythingwenthorriblywrong.Shewaswalkingtohercaraftershoppingwhentheunthinkablehappened.Rightasshewasunlockinghercar,amanquicklycameupbehindherandtriedtowrestleherpurseaway.Shewasinshock.LuckilysherememberedshehadherSafePersonalAlarm（SPA）onherpurse,andsinceshewastooscaredtoscreamforhelp,shequicklyreachedforthealarmandpulledthepin（保险栓）.ImmediatelyherSPAstartedjustscreaming.Themandidn'tknowwhattodo!Hefrozeforasecond,andthenranawaylikeabatoutofhell!SPAisasafetydevicecapableofcreatinga125dbsoundthatattractsattentionandscaresawaypotentialattackers.Tocompare,it'sthesamevolumeasamilitaryjetduringtakeoff.PaulDavidson,theinventorofSPA,knowsalltoowellthetypeofsituationthatRuthfoundherselfin.Butthat'snottheonlytypeofsituationthatSPAhelpsprotectagainst.Parentscangiveittotheirkidsasanextrameansofprotection.TeenagerscanuseitsotheycanfeelsafewalkinghomeWomencanknowit'stherewhentheyhavetousetheparkinglotatnight.“Mymother,whois76yearsold,carriesitaroundincaseshefallsandneedstoaskpeopleforhelp.1onlywishI'dhavethoughtofitearlier,saidPaul.ThepolicehavebeenrecommendingSPAsinceitfirsthitthemarket.Infact,sinceitslaunch,SPAhasbeeninastate,shiftingbetweeninstocktosoldoutnearlyeveryotherweek,andit'salsogottonsofloyalfollowersworldwide.4.Whatdoestheunderlinedpart“theunthinkableinParaph1referto?A.Anattemptedrobbery.B.Awrestlingmatch.C.Anangryargument.D.Acaraccident.5.HowdidRuthreacttotheunexpectedsituation?A.Shefoughtviolently.B.Shefrozeingreatfear.C.Shecrieddesperatelyforhelp.D.Shesoundedhersafetydevice.6.WhydoesPaulmentionhismother?A.Toimplytheelderlyneedmorecare.B.Tosuggesthecaresabouthismother.C.ToshowSPAcanbewidelyused.D.TomakeanadvertisementforSPA.7.Whatcanbelearnedfromthetext?A.SPAiswellreceivedinthemarket.B.Peoplehesitatetopayforsecurity.C.SPAwassoldoutinthefirsttwoweeks.CLikeclockwork,nearlyeveryfourthFebruaryincludesoneextraday.February29th,otherwiseknownasLeapDay,isn'texactlyaholiday.Instead,it'stheretokeepyourcalendarconsistentwiththeearth'srotation（旋转）aroundthesun.AccordingtoHistory,com,RomanemperorJuliusCaesaristhe“father”ofLeapYear.Untilhecamealong,peopleuseda355-daycalendar,whichwas10.25daysshorterthanthesolaryear.Romanofficialsweresupposedaddanextramontheverynowandthentokeeptheseasonsexactlywheretheyshouldbe.Butthatdidn'tworkoutallthatwell.Whenspecialoccasionsstartedshiftingintodifferentseasonsaround45BCE,Caesarconsultedwithastronomersanddecreed（下令)thattheempireshouldusea12-month,365-daycalendar,whichhenamedafterhimself,Caesar'sJuliancalendarincludedaLeapDayeveryfouryears.ThoughLeapDaykeepsyourcalendarinlinewiththeearth'srotationaroundthesun,itcausesadifferentkindofproblemforleapsters.WhenshouldtheseFebruary29thbabiescelebratetheirbirthdaysduringtheotherthree-quartersoftheirlives?SomepartyonFebruary28th,whileotherspreferatwo-daycelebrationthatspansthelastdayofFebruaryandthefirstdayofMarch.LeapDaycanbeanuisanceinthelegalsystem.In2006,acourtinMassachusettswasdecidingwhethercriminalJohnMelocouldbereleasedadayearlysincehis10-yearsentenceinclu