2023-2024学年安徽省八年级教学质量检测(三)数学考试卷

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2023-2024学年安徽省八年级教学质量检测(三)数学考试卷试卷答案

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第二节(满分25分)阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文

Socialmediaandagooddoseofhopehavereunitedalittlegirlwithalostteddybearshe'dhadsincebeingadoptedfromanorphanage(孤儿院)inEthiopia,NaomiPascalisagirlfromEthiopia.Shebecameanorphanin2015andwasadoptedfromanEthiopianorphanagein2016.TeddywasthefirstgiftthatBenandAddiePascal,herfos-terparents,senttoNaomibeforeshewasadopted.NaomiPascalthoughtherteddybearwasgoneforeverwhenshelostitalongatrailinGlacierNationalPark,Montana,backin2020.Butthankstoasocialmediarequest,afamilyfriend,andasoft-heartedparkranger员),thebearisnowbackwithNaomiinJackson,Wyoming.:'·SinceTeddywasthefirstgiftshereceivedfromherfosterparents,shelovesitsomuchthatshetookiteverywhereshewent.ShetookTeddywithheronfamilytripstoEthiopia,Rwanda,CroatiaandGreece,andwhenherdadBen'tookhertoMontanainOctober2020,thebearonceagaincamealong.FamilyfriendTerriHaydenthenwatchedthechildrenduringahikein'theNationalPark,andnoonerealizedTeddyhadbeenleftbehinduntiltheygot-backthehousethatnight.Itthensnowed,meaningthehigheraltitudeoftheparkwereclosedandTerriwaspreventedfromreturningtosearchfortheteddybear.Shemadeareporttoparkofficials,buthadnoimmediateluck.Sometimelater,rangerTomMazzarisispottedthebearsoakingwetandsittinginmeltedsnowneartheHiddenLakeTrail,whileheand'twoothersweredoingend-of-seasonwork.Mazzarisididn'tknowthatthestuffedanimalhadbeenreportedlost,butcouldn'tbringhim-selftothrowitintothedustbin."Typically,itemsthataren'tworthmuchmoneywillbethrownout,"hesaid.SothebearsleptinhiscottageinSt.Mary,andwhenhereturnedtoworkinApril,heimmediatelyputitintohistruckasa“littlemascot(吉祥物)”,注意:1.续写词数应为150左右;2.请按如下格式在答题卡的相应位置作答

,0Meanwhile,TerrifeltbadforlittleNaomi.说时滑小’小.,fwgn,1(:.1:,ii:1n01t1-.)0:r:.l:)Terriquicklyapproachedtheranger.【高三英语.第10页(共10页)】904C·SHX·圈

分析写出命题否定命题,然后判断真假即可.

解答解:命题p:?a∈R,直线ax+y-2a-1=0与圆x2+y2=6相交.则?p:?a∈R,直线ax+y-2a-1=0与圆x2+y2=6不相交,
直线系恒过定点(2,1),因为在圆x2+y2=6的内部,所以直线系恒与圆相交.
所以否定命题是假命题.
故选:D.

点评本题考查命题的否定以及命题的真假的判断,直线与圆的位置关系的应用,考查计算能力.