[今日更新]鼎鑫书业2024年普通高等学校招生全国统一考试押题密卷(二)2.物理试卷答案

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26.Whathelpedtheauthorknowmoreabouthisgrandfather'sexperiencesonthebattlefields?A.TheillustrationbyMuirheadBone.B.Thearmyrecordsofhisgrandfather.C.HisvisittotheImperialWarMuseum.D.ThelegendoftheBattleoftheSomme.27.Whydoestheauthorwritethetext?A.Totellaboutpeople'slifeinthe1910s.B.TohelpusknowabouttheFirstWorldWar.C.Toencourageustoknowaboutourgrandfathers.D.Totellabouthisgrandfather'sexperiencesatwar.CParentsdonotowetheirchildrenacollegeeducation.Iftheycanaffordit,theycancertainlysendthemtoagooduniversity.Buttheyneedn'tfeelguiltyiftheycan't.Whenchildrengrowupandwanttogetmarried,theirparentsdonotowethemanapartment.Theydonothavethedutytolookaftertheirgrandchildren,either.Iftheywanttodoit,itmustbeconsideredafavor,notanobligation.Doparentsowetheirchildrenanything?Yes,theyowethemagreatdeal.Oneoftheirobligationsistogivetheirchildrenapersonalworth.Childrenwhoarealwaysmadetofeelstupidandunworthy,constantlycomparedwithbrighterbrothers,sisters,orcousinswillbecomesounsure,soafraidoffailingthattheywon'ttryatall.Ofcoursetheyshouldbeproperlycorrectedwhentheydowrong,butit'softenbettertoletchildrenlearntheirmistakesbythemselvesintime.Alltheirparentsshoulddoistotrustthem,respectthem,understandthemandgivethemchancestotryandfail.Theymustlearntostandfailure.Whencriticisms()arereallyneeded,theyshouldbebalancedwithasmileandakiss.Thatisthewaychildrenlearn.Parentsowetheirchildrenasetofsolidvaluesaroundwhichtobuildtheirlives.Thismeansteachingthemtorespecttherightsandopinionsofothers;itmeansbeingrespectfultoelders,toteachers,andtothelaw.Thebestwaytoteachsuchvaluesisbydeeds.Achildwhoisliedtowilllie.AchildwhoseesnolaughterandnoloveinthehomewillhavedifficultylaughingandlovingNochildaskstobeborn.Ifyoubringalifeintotheworld,youowethechildsomething.28.TheauthorthinksparentsA.shouldsendtheirchildrentocollegeB.shouldsupporttheirchildrenaftertheygetmarriedC.needtobuyanapartmentfortheirchildrenD.needn'tfeelguiltyiftheycan'tsendtheirchildrentouniversities29.Whatdotheunderlinedwords"anobligation"inParagraph1mean?A.Aright.B.ApromiseC.Aduty.D.Anexcuse.英语试题（长那版）第5页（共10页）

(3)主要实验步骤如下:①开关S断开,调节电阻箱的阻值至最大,然后闭合开关,调节电阻箱阻值至合适值,记录电流表、电压表示数;②改变电阻箱的阻值,获得多组数据,电压表的示数为U,电流表的示数为I,,电阻箱阻值为R0

(13分14.(13分)如图所示,小球B静止在水平面上,绕过固定在O点定滑轮的细线两端分别连接在小球A、B上,O点在小球B正上方,将小球A拉至与O点等高的位置,将小球A由静止释平方放,小球A绕O点在竖直面内做半径为R的圆周运动,小球A运动到最低点时,沿水平方接碰,碰撞前一瞬间,小球B对地面的压力恰好为零,A与B碰撞后压力恰好为零,A与B碰撞后力的球的细线均断开,碰撞后两小球沿水平面运动过程中受到的阻力均为其重力的110,小与球与固定在地面上的挡板碰撞前后速度大小相等方向相反,不计定滑轮所受的不不计小球受的空气阻力,不计小球、定滑轮的大小,不计小球与挡板碰撞过程所用时间,小球A的质量为nn,开始时,小球B与两挡板间的距离均为R,重力加速度为g.(1)求小球B的质量;(2)通过计算说明两球能否再次相碰?若能,两球再次相碰的位置?AB

运动的一部分,ON为匀变速曲线运动.不计一切摩擦,重力加速度为g,关于弹珠的运动,A.从M到N,弹珠的速度时刻在变化,故该过程弹珠的机械能不守守恒B.在ON过程中,弹珠动量的变化量与运动时间成正比,方向不变C.弹珠在ON过程的加速度为gcosαD.弹珠从M到O,受到挡板边沿的支持力先增大后逐渐减小至0