小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com练习49语法填空＋阅读理解Ⅰ.语法填空2023·重庆市质研说明文198词★★★☆☆Mininghasseenupsanddownsbuttraditionalcondiments(调味料)continuetoappeal.AnymentionofZigong,SichuanProvince,remindspeople1.________itssaltproductionandthisis2.________importantsourceofrevenue(财政收入).Thecity,about200kilometersfromChengdu,hasahistoryofminingsalt3.________(stretch)back2，000years.ThesaltwassoldalloverSichuanandotherprovinces,andwasconsumedbyonetenthofChina'spopulation.Thesaltisfromwells.Oneofthem,theShenhaiwell,wasopenedin1835,andisstillin4.________(operate).Withadepthof1，001.42meters,itisamongtheworld'sdeepestofitskindand5.________(current)producesaround2，000kilogramsofsaltperday.Visitorstothewellcanbuypacksofiodinefreesalt6.________(mine)justthreedaysearlier.But,duringSpringFestival,7.________endswiththeLanternFestivalonthe15thdayofthefirstlunarmonth—fallingonSundaythisyear—morepeoplefromaroundthecountryflocktoZigong8.________(view)itsworldfamouslanterns.ViewinglanternsbecameaSpringFestivalcustominZigongduringtheTangDynasty.Sincethen,the9.________(city)lanternshowhasbeenheldinmorethan70countriesandregionsaroundtheworld,becomingacallingcardofbothZigongandChina.Thepopularshow10.________(start)fromtheeconomicdilemmainthe1980s,whenZigong'seconomyoverrelyingonasingleproductbecameaproblem.Ⅱ.阅读理解A2023·云南高三质检说明文327词★★★★☆Inabout23years,itmayfinallybetimetolookup.Arecentlydiscoveredasteroid(小行星)hasachanceofhittingtheearthonValentine'sDayin2046.ItwasdiscoveredonFeb.26atanobservatoryinSanPedrodeAtacama,Chile.Whilethethoughtofanasteroidhittingtheearthmaysoundconcerning,NationalAeronauticsandSpaceAdministration(NASA)sayspeopleshouldn'tbeworried.Theasteroidhasanestimateddiameterofaround160feet,whichisaboutthesamesizeasanOlympicswimmingpoolorthewidthofafootballfield.“We'vebeentrackinganewasteroidnamed2023DWthathasaverysmallchanceofimpactingtheearth.Oftenwhennewobjectsarediscovered,ittakesseveralweeks'datatoreducetheuncertaintiesandadequatelypredicttheirorbitsyearsintothefuture，”NASA'sPlanetaryDefenseCoordinationOffice(PDCO)said.TheasteroidisrankedontheTorinoScaleasLevel1threat.Thescaleisatooltocategorizepotentialearthimpacts,withzerobeingnothreatand10beingsomethingthatcancauseaglobaldisaster.OneontheTorinoScalemeans2023DWisinthenormalorgreenzone.小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com“Currentcalculationsshowthechanceofcollision(碰撞)isextremelyunlikelywithnoneedforpublicconcern，”NASAsaysofthegreenzone.“NewtelescopicobservationswillverylikelyleadtoreassignmenttoLevel0.”Although2023DWdoesn'tposeagreatrisktotheearth,NASAhasbeencontinuingtoworktodefendourplanetfromanyasteroidthatcouldcausedisasters.InSeptember,2022,NASAcrasheditsDoubleAsteroidRedirectionTestspacecraft,orDART,intoanasteroidtoseeifitcouldchangethetrajectoryofthespacerock.NASAlaterconfirmedthemissionwasasuccess,andiscontinuingtoresearchhoweffectivethemethodis,shouldamassiveasteroidbeheadedourway.1．WhatdoesNASA'sPDCOsayabout2023DW?A．Itistooclosetotheearth.B．Itmustbedestroyedinspace.C．Itsorbitisstilluncertainnow.D．Itsorbitshouldbechanged.2．Howis2023DWranked...