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河南省漯河市2023-2024学年度七年级上期期末教学质量检测物理试卷答案试卷答案

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第二节（共5小题；每小题2.5分，满分12.5分）根据短文内容，从短文后的选项巾选出能填入空白处的最佳选项

选项巾有两项为多余选项

I'maslowreader.16Thisisfineformebecausemytargetistofocusonquality.Inthepast,Iusedtospendthetimenecessarytogetthemostoutofthebookwithoutgettinglostindetails.ButnowIattachmoreimportancetoqualitythanquantity.Howcanwedothat?Howcanwechooseagoodbooktoread?Herearethreesimplestepsonhowtochooseagoodbooktoread.17Ibelievethathavingtherightattitudeisthestartingpoint.Whatistherightattitudetohave?Whenitcomestoself-education,therightattitudeiscuriosity.Becauseunlikeformaleducationwhereexternal()factorspushyoutolearn,withself-educationyouneedtomotivateyourself.Curiosityislikefuelinyourself-educationjourney.Findpotentialbooks.Tofindagoodbooktoread,youshouldcollectpotentialbookstoread.Inmycase,IusuallyputthemonmyAmazonwishlist.Howdoyoufindthesepotentialbooks?18Ialsofollowsomewebsitesthatoftenrecommendgoodbooks.Icanthendecidewhetherornotthebookisagoodoneforme.19Choosethebestbookforyourcurrentsituation.Withalistofpotentialbookstoread,howdoyouchoosewhichonetoread?20Whichbookwouldmakethemostdifferenceinmycurrentsituation?Thisquestionmightseemsimple,butifyouuseit,itcanmakeabigdifferenceinyourpersonalgrowth.A.Becurious.B.Becautious.C.Inmycase,Iaskmyselfaquestion.D.Well,myfirstsourceisbestsellerlists.E.Icanknowmoreabouttheauthorofabook.F.Ingeneral,Icanonlyfinishtwobooksinamonth.G.Ifitis,thenI'lladdittomylistofpotentialbookstoread.第二部分语言运用（共两节，满分45分）第一节（共15小题；每小题2分，满分30分)阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项

IthappenedinKnoxville(acityinTennesseeintheUS).Amothersaidshewasfeeling21asshetriedtocomfortherautistic()son.Butastranger'sactofkindnessturnedbothoftheirdaysaround.AshleyFoxwas22atWalmartwithhersonNorris,three.Norrispickedoutatoydogatthestore.23,itcostmorethanFoxhad24,sosheputitback.“That'swhenNorrisjusthadameltdown(情绪突然失控).IrushedoutofWalmartasfastasIcould.Hewasscreamingand25,"saidFox.ShewasstrugglingtogetNorrisintohiscarseatwhenawomanapproachedherwiththe26hersonhadwantedinthestore."Theladycameupbehindmeandshepulledthistoyout,andshesaid,'Isthiswhathewaswanting?'andIsaid,'(hmygod,yesitis.'Igaveittohimandhejust27.Itwasgreat.Iexpressedmy28toherandofferedtopayforthistoy.She29toletmedoit,30sayingthatsheunderstoodthatbecauseshehas31,too.Ijustreallywantedhertoknowthatitmadehisnightandmadehis32HelovesitandIjustthinkitwasareally33thingthatshedid,"saidFox.23017A

河南省漯河市2023-2024学年度七年级上期期末教学质量检测物理试卷答案第一部分

12.如图所示,固定的倾斜金属导轨倾角为=30^,顶端接入的电源电动势为E=20V,不计。整个装置处于方向垂直于导轨平面向下、磁感应强度大小为B=2T的匀强磁场中。导体棒ab的质量m1=4kg,,长度L1=1m,,电阻R1=2,与导轨间的动摩摈因数=32,导体棒d质量m2=1kg,长度L2=0.5m,电阻R2=1,两导体棒长度分别与上、下部分导轨间距相同,下部分导轨光滑。开始时断开开关.闭合开关S1,由静止释放导体棒ab,一段时间后导体棒ab稳定,此时断开开关S1.闭合开关S2,由静止释放导体棒cd,经一段时间t后导体棒cd稳定,此时导体棒ab恰好静止,此过程通过导体棒cd的电荷量为q,,导轨上、下区域足够长,导体棒ab全程在较宽区域运动,导体棒全程在较窄区域运动,取g=10m/s^2,则A.释放导体棒ab的瞬间,其加速度大小为2m/s^2B.导体棒ab稳定时的速度大小为5m/sC.导体棒cd稳定时的速度大小为12m/sD.从闭合开关S2到导体棒cd稳定经历的时间为q5+3(s)

河南省漯河市2023-2024学年度七年级上期期末教学质量检测物理试卷答案第二部分（待更新）

(2)电容器充电后,开关S改接2使电容器进行放电,此过程得到的I-t图像如图乙所示,如果不改变电路其他参数,只减小电阻R的阻值,则此过程的I-t曲线与坐标轴所围成的面积将(填“减小"“不变”或“增大”)。