[今日更新]2024届皖豫名校联盟安徽卓越县中联盟高三五月联考.物理试卷答案

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ofthisthatthebookseedganthebookisritteforchildre.Differentihavetheirownwaystounderstandthebookandwillconsideritinteresting.28.Whatisthebookmainlyabou?dd好学义3i会士半J者A.Aboy'sgreatloveforatree.:克培的销的转B.Aboy'sdependenceonaforest.容内特奥指，C.Aboy'srelationshipwithatree张意生D.Aboy'sinterestinglifeinaforest.:去00以婆厨29.Whyisthebooksuitableforyoungreadersintheauthor'sopinion?A.Itsstoryistouching器火天1H20551在B.Itsexpressionsaresimple.1019AC.ItswritingstyleishumorousD.Itstopicsarevaried.30.WhatmakesTheGivingTreepopular?A.Thecommentskidsgave.B.Thewritingstyle.C.Thepicturesinit.D.Thetruthitmirrors.31.Whatistheauthor'spurposeinwritingthetext?A.TocommentonabookB.Tointroduceawriter.C.Torecommendastory.D.Togivereadersalesson.DUptoonefifthoftheAmazonrainforestisemittingmorecarbondioxide(CO2),thanitabsorbs,newresearchsuggests.Resultsfromadecade-longstudyofgreenhousegasesovertheAmazonrainforestappeartoshowaround20%ofthetotalareahasbecomeanetsourceofCO2intheatmosphere.Oneofthemaincausesisdeforestation.Whiletreesaregrowing,theyabsorbCOfromtheatmosphere;deadtreesreleaseitagain.However,thefactisthatmillionsoftreeshavebeenlosttologgingandfiresinrecentyears.Theresultsofthestudy,whichhavenotyetbeenpublished,haveimplicationsfortheefforttocombatclimatechange.TheysuggestthattheAmazonrainforest,avitalcarbon"store",or"sink",thatslowsthepaceofglobalwarmingmaybeturningintoacarbonsourcefasterthanpreviouslythought.Everytwoweeksforthepast10years,ateamofscientistsledbyProfessorLucianaGatti,aresearcheratBrazil'sNationalInstituteforSpaceResearch(INPE),hasbeenmeasuringgreenhousegasesbyflyingaireraftfittedwithsensorsoverdifferentpartsofthe英语试题第7页（共12页）

5.如图所示,在无限长直边界CD的右侧存在垂直纸面向里的匀强磁场,磁感应强度大小为B,无限大挡板EF平行于CD放置,与CD相距为d,带电粒子达到挡板时能够被挡板吸收,在A处有一粒子源能够在纸面内持续发射速度大小相等的电子。当电子在纸面内沿AO方向垂直匀强磁场边界射入时,恰好未被EF吸收。已知电子的质量为m,电荷量为e,不计电子重力及电子间的相互作用。若磁感应强度大小变为原来的一半,电子速度方向缓慢从AO沿顺时针旋转到AD时,在挡板上能够吸收到电子的长度为A.(3-1)dB.2(3-1)dC.3dD.23d

5.某同学设计了一种测量物块与斜面间动摩擦因数的方法,如图所示,调整斜面的倾角为,让物块θ,从斜面底端以一定的初速度冲上斜面,物块到达最高点后又滑回原处。测出物块下滑的时间是上滑时间的k倍,则物块与斜面间的动摩擦因数为A.k^2-1k^2+1B.k^2-1k^2+1an0C.k-1k+1siinθD.k-1k+1

7.我国北斗中圆地球轨道卫星,轨道离地高度21500km,美国GPS导航卫星在轨的运行周期约为12小时.已知地球同步卫星离地高度约36000km,地球的半径为6400km,若北斗中圆地球轨道卫星在轨运行时的速度大小为v1,,美国GPS导航卫星在轨运行时的速度大小为v2,(已知[3]41.6),则v1v2约为A.0.81B.0.97C.1.11D.2.03