[今日更新]山西省2023-2024学年度第一学期八年级期末试题.物理试卷答案

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[今日更新]山西省2023-2024学年度第一学期八年级期末试题.物理试卷答案试卷答案

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andfiles,andchatwithyourteamwhileyou'reinameeting.Thewebplatformallowsuserstoschedulelteapoplomydiscouraetheire.Yetinheogthaintheirandsharemeetingswhilebeingabletostoredatawithease.ardoflivnghrkoandrinklneedreorTheWorkroomswillnotusetheworkconversationsorthematerialsusedduringmeetingstomakeAnypowerfultechnologycanbeusedforgoodl.ItisthechoicespeopemakeabouthhetheproftFacebookalmakesitclearthatthecompanyandeventhethird-partyAppsconectedhd.PehapthereofeisottehnoogyifbutououtheyWorkroomswillnotbegivenaccesstothedatausedinthemeetings.ctithothisdebae,comupgtheecdeutthepVirtualrealitypossessestheabilitytotransformthewaywework.Itsabilitytoallowforbetterforamoment.Tobealiveinthetech-obesedistbeamngtheluckiestpeophave.cooperationwhilebridgingthegapsbetweentheregularofficesetupsandtheremoteworkingculturecould32.Accordingtothepassage,whichofthefollowingisaproblemcausedbynewtechnoloie?revampthedigitalcooperationsetupsasweknowthemtoday.A.Endlesshacking.B.Networkviruses.28.Howdoestheauthordevelopthefirstparagraph?C.Convenientcommunication.D.Leakingprivacy.A.Bygivingadefinition.B.Bypresentingdate33.WhichwordcanbestdescribeRomantics'concemoverindustrialization?B.Uncertain.C.Bymakingcomparisons.D.BydescribingasceneA.Negative.C.Sympathetic.D.Enthusiastic.29.WhatismainlytalkedaboutinParagraph2?34.Whatmightbearesultofa"technologytrap"?A.HowtobenefitfromWorkrooms.A.Alackofgoodjobsinthejobmarket.B.HowtocreateaWorkroomsteam.B.AnincreaseinthenumberofLuddites.C.HowtogetstartedwithWorkrooms.C.Adecreaseinthenumberofskilledworkers.D.HowtosetupaWorkroomsaccountD.Aninterruptiontotheadvancementofanewtechnology.30.WhatcanweinferaboutWorkrooms?35.Whatcanweknowfromthepassage?A.IthasaccesstothedatausedinmeetingsA.Manisblessedtoliveinthe2020swithhightechadvancingfastdespitesomedrawbacksB.Itisbuiltwithsafetyandprivacyinmind.B.Allthepeopleobjecttotheprogresstechnologybringsbecauseitharmsourcivilization.C.ItofferstheheadsetstousersfreeofchargeC.The2020sistheAgeofTechnologyandmankindissufferingalotduetoitsinfluence.D.ItmakesprofitfromconnectingwithotherAppsD.Humanscompletelydependonourfuturecaretakers-robots.图31.Whatdoestheunderlinedword"revamp"probablymean?第二节（共5小题：每小题2分，满分10分）B.Putanendto.根据短文内容，从短文后的选项中选出能填入空白处的最佳选项

选项中有两项为多余选项

A.Makechangesto.8C.Makeroomfor.D.Drawattentionto.Imagineyou'reabouttosubmitanapplicationtoyourdreamschoolandsuddenly,yourheartstartspounding(s狂跳)：DidImakeawisedecisionchoosingthismajor?_36_？Toavoidthissittion,oosDthesesteps.斯Manypeoplecountonfaster,cheaperandbettertechnologytoofferavisionofabrighterfutureWhatsubjectsinterestyou?AnautomaticanswermaybethesubjectinwhichyougetthehighestNevertheless,asthe2020sdawn,optimismisinshortsupply.Thenewtechnologiesthatdominatedthescore.37.Ifyouhadtotakeoneclass,whatwoulditbe?Whenyouhavefreetime,whatkindsofpastdecadeseemtobemakingmattersworse.Socialmediaweresupposedtobringpeopletogether,butbookswouldyoupickupandread?Youranswersmayhintatwhatyou'rerulyinterestedin.theyarebetterknownforleakingprivacy.E-commerce,ride-hailingandthegigeconomy()may38.Forexample,artificialintelligence,biomedicalscienceandmechanicalengineeringaresomebeconvenient,buttheyarechargedwithunderpayingworkers,worseninginequalityandblockingtheofthemostpromisingcurrentmajors.Nowtakeacloserlookattheabovetwosteps.Forexample,maybeyoufindyourselfhookedwhenstreetswithvehicles.Today'spessimisticmoodiscenteredonsmartphonesandsocialmedia,whichtookoffadecadeago.you'relearingaboutcomputerscience,andartificialintelligenceappearstobeofgreatimportanceintheYetconcernsthatparticulartechnologiesmightbedoingmoreharmthangoodhavearisenbefore.Theworldaswell.39.Theremaybeafew,butdon'tworry,westillhaveonemorestep.1920switnessedacriticismagainstcars,whichhadearlierbeenseenasananswertotheproblemscausedCheckyourdreamschool'sadmissionrequirements.Forexample,I'vebeeninterestedinbothbyhorse-drawnvehicleswhichfilledthestreetswithnoiseandanimalwasteandcausedaccidents.Andpsychologyandeducation,butapparentlypsychologyhashigherrequirementforadmission.40industrializationwascriticizedinthe19thcenturybyRomanticswhoworriedaboutthereplacementofGrabapenandstartcreatingyourowndesirablemajor.A.No,thinkhardskilledworkers,therobbingofthecountrysideandthesufferingoffactoryhands.However,thatpessimismcanbeoverdone.ToooftenpeoplefocusonthedrawbacksofanewB.Markthembothtechnologywhiletakingitsbenefitsforgranted.WorriesaboutscreentimeshouldbeweighedagainsttheC.WhatifI'mwrongmuchmoresubstantialbenefitsofconvenientcommunicationandtheinstantaccesstoinformationandD.Whataboutseekingadvicefrommyparentsentertainmentthatsmartphonesmakepossible.AfurtherdangeristhatLuddite(反对技术进步者)effortsE.Ifyouhavemanyideasinmind,listthemalldowntoavoidtheshort-termcostsassociatedwithanewtechnologywillendupdenyingaccesstoitslong-termF.Comparativelyspeaking,educationwouldbeasmarterchoicebenefits-somethingCarlBenediktFrey,anOxfordacademic,callsa"technologytrap"FearsthatrobotsG.Writedownwhatyoubelievewillbemostindemandinthefuture英语3-3（全卷共4页）B

8.如图甲,两个带正电的小球A、B(均可视为点电荷)套在一根倾斜的光滑绝缘直杆上,其中A球固定,电荷量QA=2.010^-4C,B球的质量m=0.1kg。。以A为坐标原点,沿杆向上建立直线坐标系,B球的总势能(重力势能与电势能之和)随位置x的变化规律如图乙中曲线I所示,直线Ⅱ为曲线I的渐近线。图中M点离A4点距离为6m,,令A位置的重力势能为零,无穷远处电势为零,重力加速度取10m/s^2,,静电力恒量k=9.010^9Nm^2/C^2,,下列说法正确的是是

8.某电影中太空电梯让观众对未来旅行月球充满期待,若将来某一天建在赤道上并垂直于地表水平面的某电梯直达月表附近,则A.若电梯中的货物上升到不同高度固定时,其绕地心做圆周运动的周期不同:B.货物乘电梯到达月球附近时,其绕地心运行的速度小于月球的公转速度C.货物离开电梯时,需要向月球公转的方向喷气才可能安全着陆D.理论上可将太空电梯直接与月球焊接

6.如图所示,一轻弹簧竖直放置,下端固定在水平地面上,自然伸长时弹簧上端处于A点。t=0时将小球从A点正上方O点由静止释放,t1时刻到达A点,t2时刻弹簧被压缩到最低点B。以O为原点,以竖直向下为正方向建立:x坐标轴,以B点为零重力势能点,弹簧形变始终处于弹性限度内,弹簧的弹性势能的表达式为Ep=12k(x)^2(式(式中k为弹簧的劲度系数,△x为弹簧的形变量)。下列关于小球在运动过程中的动能Ek、、重力势能Ep1、机械能E0及弹簧的弹性势能Ep2的图像中可能正确的是