2023-2024上学期承德市重点高中联谊校高二年级12月份联考数学.考卷答案

2023-2024上学期承德市重点高中联谊校高二年级12月份联考数学.考卷答案试卷答案,我们目前收集并整理关于2023-2024上学期承德市重点高中联谊校高二年级12月份联考数学.考卷答案得系列试题及其答案,更多试题答案请关注微信公众号:考不凡/直接访问www.kaobufan.com(考不凡)

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2023-2024上学期承德市重点高中联谊校高二年级12月份联考数学.考卷答案试卷答案

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Amazonbasin.Whatthegroupfoundwasstarting:whilemostoftherainforeststillretainsabilitytoabsorblargequantitiesofpeciallyinwetteryearsoneprtionoftheforest,whichisespeciallyheavilydeforested,appearstohavelostthatcapacity.Gatti'sresearchsuggeststhissouth-easternpartoftheforest,about20%ofthetotalarea,dhasbecomeacarbonsource."Eachyearisworse,shetoldNewsnight.Weobservedthatthisareainthesouth-eastisanimportantsoureofcarbon.Anditdoesn'tmatterwhetheritisawetyearoradryyear.2017wasawetyear,butitdidn'tmakeanydifference."Aforestcanbecomeasoureeofearbonratherthana"store",or"sink",whentreesdieandcmitcarbonintotheatmosphere.AreasofdeforestationalsoconributetotheAmazon'sinabilitytoabsorbcarbon.CarlosNobre,whoco-authoredProfGatti'sstudy,calledtheobservation"veryworrying"because"itcouldbeshowingthebeginningsofamajortippingpoint".Hebelievesthenewfindingssuggestthatinthenext30years,morethanhalfoitheAmazoncouldtransformfromrainforestintosavanna(稀树草原).32.WhatcanbeconcludedfromParagraph2?A.Loggingandfiresshouldbeheldresponsibleforalldeadtrees.B.AmazonrainforestcannolongerabsorbasmuchCO2asbefore.C.GrowingtreesareabletoabsorbandreleaseCO2atthesametime.D.Morethan20%oftheAmazonrainforesthasbecomeanetsourceofCO.33.WhichofthefollowingmightProfessorLucianaGattiagreewith?A.MostoftheAmazonrainforestabsorbsmoreCO2inwetteryears.B.TheAmazonrainforestisonitswaytobecomingthebiggestsourceofcarbon.C.Deforestedareastendtoperformbetterintermsofabsorbingcarbonindryyears.D.TheAmazonrainforesthascompletelylostitsabilitytoslowthepaceofglobalwarming34.Whatdoestheunderlinedwordprobablymean?A.ConfusingB.Convincing.C.StrikingD.Disgusting.35.Whatwouldbethebesttitleofthispassage?omd1o918211n1021n9A.Deforestationorreforestation?ronBbasnollsisqooomso).lwgnone,allalsonB.Acarbonabsorberoracarbonmaker?C.CheeringnewsabouttheAmazonrainforestD.ThrillingfactsabouttheAmazonrainforest英语试题第8页(共12页)

分析由偶函数的定义和运用导数判断函数在[0,+∞)上的单调性,可将f(x)<0转化为f(|x|)<f(log23),化简为|x|<log23,即可得到x的取值范围.

解答解:∵函数f(x)是定义在R上的偶函数,
∴f(-x)=f(x),
∵当x∈[0,+∞)时,f(x)=2x-3,
∴f′(x)=2xln2>0,
∴f(x)在[0,+∞)上单调递增,
又f(log23)=0
∴f(x)<0转化为f(|x|)<f(log23)
∵f(x)在[0,+∞)上单调递增,
∴|x|<log23
∴-log23<x<log23.
故答案为:-log23<x<log23.

点评本题考查函数的性质及运用,考查函数的奇偶性、单调性及运用,注意函数的定义域,注意运用导数判断单调性,属于中档题.