[今日更新]［陕西大联考］陕西省2023-2024学年度第二学期高二年级4月联考.物理试卷答案

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stigma(attachedtowastepicking,andoneofthecontributorstothestigmawasthename'informalwastepickers'.”Witharound20millionpeoplepickingwasteforalivingaroundtheworld,itisimportantthattheyaretreatedwithrespectandrecognizedforthehighlyvaluableworkthattheydo.32.Whatcouldbesaidabouttheworkofpickingwaste?A.It'sfruitless.B.It'snotdeservingC.It'sdangerous.D.It'smeaningless.33.HowhasTikitoro'sworkaffectedher?A.ShehasbeenlookeddownonB.Shehaslearnednewlifeskills.C.Shehasgainedasenseofachievement.D.Shehasdevelopedastrongpersonality34.Whatdoestheunderlinedword"gear"inparagraph4mean?A.Experiment.B.Equipment.C.Color.D.Effect.35.WhatmayAmiteshDeosayaboutthename"informalwastepickers"?A.IttakesyearstoformB.Itshouldbeformallynamed.C.Itispopularnationwide.D.Itneedstobeforgotten.第二节（共5小题；每小题2.5分，满分12.5分)阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项

选项中有两项为多余选项

WhatAreSomeGoodStudySkillsGoodhabitsaredevelopedovertimeandtrainedthroughpractice.Itisn'tpossibletolearneverysinglestudyskillinasinglestudy.Itis,however,helpfultoknowwhatspecificskillsthatgoodstudentsuse.36StudyingUsefullyItmaysoundobvious,butstudyingusefullyisamongthemostimportantofallstudyskills.37.Thoughthereareplentyofexamplesofsuchonesonline,asimplememoryskillistocreateanabbreviation(Toremembertheorderofthenorth,east,south,andwestdirections,forexample,kidsaresometimesencouragedtorememberthelaughableabbreviation"nevereatsoggywaffles".ReadingActivelyThoughmoststudentsunderstandhowtoread,readingtogetinformationcanbemuchharder.Onewaytomakethebrainrememberbetteristomarkatleastonekeyphraseperparagraphofreadingmaterial.38Anditshouldn'tsimplybegivenupassomethinguseless.Toaddextrapowertoreading,manycarefulstudentswritenotesbesidethesentencesaboutanyquestionsormisunderstandingstheymayhaveaboutthematerial().OtherssimplywriteoutconnectionsorideasthatcomeaboutUsingTest-TakingSkills39.Multiple-choicetestsareaneffectiveway.Crossingoffunlikelyanswers,forexample,canimprovestudents'chancesofguessingcorrectlywithoutanymoreresearch.Anotherskillistogiveuptheunclear6/9

7.如图所示,一定质量的理想气体经历,a→b-c→xil→a过程回到初状态a,各状态参量已标注在图像中,已知a状态热力学温度为Tn,,理想气体内能表达式为U=αT(其中为常数,T为热力学温度),则A.d状态分子平均速率大于b状态分子平均速率B.一个循环过程中内能最大值为4T0C.一个循环过程中系统放出热量为p0V0D.b→c过程吸收的热量等于过程放出的热量

7.如图所示,一质量为0.5kg的物块静止在倾角为37^的固定斜面上,物块与斜面间的动摩擦因数为为78。,取重力加速度大小g=10m/s^2,37^=0.6,37^=0.8,以沿斜面向上为正方向,认为最大静摩擦力与滑动摩擦力大小相等。若对物块施加一个沿斜面向上的拉力,则在下列四幅图中,能正确反映斜面对物块的摩擦力f随拉力F变化规律的是

10.(3分)医用光纤内窥镜是光纤在医学上的成功应用。如图,光纤由折射率为n1的内芯和折射率为n2的包层构成。入射光以某一角度从光纤的端面入射,当n1n2(选填“>”、“<”或“=”)时,光才能在光纤内不断发生全反射,实现在内芯中传播;如果n1=1.46,光从空气进入内芯的入射角i=30^,则折射角的正弦值为(结果保留两位小数)