2026年广东省深圳市第一中学八年级英语第5单元科技单元测试卷及答案

2026年广东省深圳市第一中学八年级英语第5单元科技单元测试卷及答案第1页共1页2026年广东省深圳市第一中学八年级英语第5单元科技单元测试卷及答案一、单项选择题（共10小题，每题2分）1.Whichofthefollowingisacommonapplicationofartificialintelligenceindailylife?A.Self-drivingcarsB.PlayingchessC.WritingpoemsD.Singingpopsongs参考答案：A2.Whatdoes"GPS"standforinthecontextoftechnology?A.GlobalPositioningSystemB.GlobalPowerSupplyC.GlobalProtectionServiceD.GlobalPersonalSystem参考答案：A3.Whichofthesedevicesisprimarilyusedforcommunicationoverlongdistancesusingradiowaves?A.TelevisionB.RadioC.ComputerD.Smartphone参考答案：B4.Theprocessofconvertinganalogsignalsintodigitalsignalsisknownas:A.AmplificationB.ModulationC.DigitizationD.Amplification参考答案：C5.Whatisthemainpurposeofafirewallincomputernetworks?A.ToincreaseinternetspeedB.ToprotectagainstunauthorizedaccessC.ToimproveemaildeliveryD.Toreducepowerconsumption参考答案：B6.Whichofthefollowingisanexampleofarenewableenergysource?A.CoalB.NaturalgasC.SolarenergyD.Nuclearenergy参考答案：C7.Inthefieldofcomputerprogramming,whatdoes"API"standfor?A.ApplicationProgrammingInterfaceB.AdvancedProgrammingIntegrationC.AutomaticProgramInteractionD.ApplicationProcessIntegration参考答案：A8.Theterm"Moore'sLaw"refersto:A.ThenumberoftransistorsonamicrochipdoublingeverytwoyearsB.ThemaximumspeedofacomputerprocessorC.TheminimumdistancebetweentransistorsonachipD.Thecostofmanufacturingamicrochip参考答案：A9.Whichofthesetechnologiesisusedtotransmitdataovertheinternetusingradiowaves?A.EthernetB.FiberopticsC.Wi-FiD.Bluetooth参考答案：C10.Whatistheprimaryfunctionofasearchengine?A.TocreatewebsitesB.TohostwebsitesC.ToindexandretrieveinformationfromtheinternetD.Todesignwebsites参考答案：C二、填空题（共10小题，每题2分）1.Thenewsmartphonecan______upto1000photos.参考答案：take2.MyfatheroftenwatchesthenewsonTVtostay______ofcurrentevents.参考答案：informed3.Scientistsareworkingona______tocurecancer.参考答案：cure4.Iusea______tohelpmeremembermyEnglishwords.参考答案：app5.Therobotcan______tasksthataredangerousforhumans.参考答案：do6.Pleaseturnoffthelightswhenyouleavetheroomtosave______.参考答案：energy7.Sheisreadingabookaboutthehistoryofthe______.参考答案：internet8.Weshouldprotecttheenvironmentandreduce______.参考答案：pollution9.Thecompanyisdevelopinganew______forvirtualreality.参考答案：gadget10.Heisveryinterestedin______andoftenvisitssciencemuseums.参考答案：science三、判断题（共10小题，每题2分）1.Artificialintelligencecancompletelyreplacehumanjobsinthefuture.参考答案：×2.ThefirstcomputerwasinventedbyCharlesBabbageinthe19thcentury.参考答案：√3.5Gtechnologyprovidesfasterinternetspeedthan4G.参考答案：√4.Virtualreality(VR)iswidelyusedinmedicaltraining.参考答案：√5.TheMarsRoverhassuccessfullyexploredthesurfaceofMars.参考答案：√6.Quantumcomputersaremorepowerfulthantraditionalcomputers.参考答案：√7.TheWorldWideWebwasinventedbyTimBerners-Leein1989.参考答案：√8.3Dprintingtechnologycanonlycreateplasticobjects.参考答案：×9.Renewableenergysourcesarealwaysmoreexpensivethanfossilfuels.参考答案：×10.ThefirstsmartphonewasintroducedbyApplein2007.参考答案：×四、简答题（共8小题，每题2分）1.Whatarethemainadvantagesofusingrenewableenergysources?参考答案：Renewableenergysourceshaveseveraladvantages,suchasbeingsustainableandenvironmentallyfriendly,reducingpollution,andprovidingenergysecurity.2.HowdoestheInternetchangepeople'sdailylives?参考答案：TheInternethaschangedpeople'sdailylivesinmanyways,suchasprovidingeasyaccesstoinformation,enablingonlinecommunication,andofferingconvenientshoppingoptions.3.Describethebasicfunctionofasmartphone.参考答案：Asmartphoneisahandhelddevicethatcombinesthefunctionsofamobilephone,computer,camera,andotherelectronicdevices.Itsbasicfunctionsincludemakingcalls,sendingmessages,browsingtheInternet,takingphotos,andrunningvariousapplications.4.Whyisitimportanttoprotecttheenvironment?参考答案：Protectingtheenvironmentisimportantbecauseithelpsmaintainecologicalbalance,ensurestheavailabilityofnaturalresourcesforfuturegenerations,andimproveshumanhealth.5.Whatarethemaindifferencesbetweencomputersandsmartphones?参考答案：Themaindifferencesbetweencomputersandsmartphonesaretheirsize,portability,andfunctionality.Computersarelarger,lessportable,andmorepowerful,whilesmartphonesaresmaller,moreportable,anddesignedforeverydaytasks.6.Howcantechnologyhelpstudentsintheirstudy?参考答案：Technologycanhelpstudentsintheirstudybyprovidingaccesstoonlineresources,enablinginteractivelearning,andofferingpersonalizedlearningtools.7.Whatshouldpeopledotoreducewaste?参考答案：Peoplecanreducewastebypracticingrecycling,usingreusableproducts,andminimizingconsumption.8.Explaintheconceptof"artificialintelligence".参考答案：Artificialintelligence(AI)isthesimulationofhumanintelligenceinmachinesthatareprogrammedtothinkandlearnlikehumans.Itinvolvestechnologiessuchasmachinelearning,naturallanguageprocessing,androbotics.五、应用题（共8小题，每题3分）1.随着科技的发展，智能手机已经成为人们生活中不可或缺的一部分。假设你最近购买了一部新的智能手机，它的屏幕尺寸为6.5英寸，分辨率为1080x2400像素。请计算这部手机的屏幕像素密度（PPI），并解释PPI的含义。参考答案：PPI为432像素/英寸2.某科技公司正在研发一种新型智能手表，该手表可以监测用户的心率、步数和睡眠质量。假设该手表的电池容量为400mAh，平均每天耗电量为10mAh。请计算该手表的电池可以支持正常使用多少天，并提出至少两种延长电池使用时间的建议。参考答案：电池可以支持正常使用40天。建议：①降低屏幕亮度；②关闭不必要的应用程序。3.人工智能（AI）技术在现代社会中得到了广泛应用。假设你是一名AI技术的研究者，请简述AI技术在未来可能对教育领域产生的影响，并举例说明。参考答案：AI技术对未来教育领域的影响包括个性化学习、智能辅导和自动化评估。例如，AI可以根据学生的学习进度和兴趣推荐合适的学习资源。4.3D打印技术是一种快速制造技术，可以用于制造各种物品。假设你是一名3D打印技术的应用工程师，请描述3D打印技术在医疗领域的应用场景，并分析其优势。参考答案：3D打印技术在医疗领域的应用场景包括定制假肢、器官打印和手术模拟。优势在于可以快速制造出符合患者需求的个性化医疗设备。5.虚拟现实（VR）技术可以提供沉浸式的体验。假设你是一名VR游戏开发者，请设计一个VR游戏场景，并描述该场景如何利用VR技术增强玩家的体验。参考答案：VR游戏场景设计：一个未来城市的探险游戏。利用VR技术增强玩家体验的方式包括：①提供沉浸式的环境；②实现身体动作的实时反馈。6.无人机技术已经广泛应用于农业、物流和救援等领域。假设你是一名无人机操作员，请描述无人机在农业领域的应用场景，并分析其优势。参考答案：无人机在农业领域的应用场景包括作物监测、精准施肥和病虫害防治。优势在于可以提高农业生产效率，减少人力成本。7.5G技术是一种高速无线通信技术，可以提供更快的网络速度和更低的延迟。假设你是一名5G技术的推广工程师，请解释5G技术对日常生活可能产生的影响，并举例说明。参考答案：5G技术对日常生活的影响包括更快的网络速度、更流畅的视频通话和更智能的设备连接。例如，5G技术可以实现远程医疗，提高医疗服务的可及性。8.智能家居技术可以自动控制家中的电器设备。假设你是一名智能家居系统的设计者，请设计一个智能家居场景，并描述该场景如何利用智能技术提高生活质量。参考答案：智能家居场景设计：一个智能家庭系统，包括智能照明、智能温控和智能安防。利用智能技术提高生活质量的方式包括：①自动调节室内温度；②实时监控家庭安全。标准答案与解析一、单项选择题1.参考答案：A解析：Artificialintelligence(AI)iswidelyusedinself-drivingcarsforvariousfunctionssuchasnavigation,obstacledetection,anddecision-making.OptionB,playingchess,isalsoanapplicationofAI,butitismoreofaspecializedusecase.OptionC,writingpoems,isalesscommonapplication.OptionD,singingpopsongs,isnottypicallyassociatedwithAI.Therefore,Aisthemostcommonandpracticalapplicationindailylife.2.参考答案：A解析：GPSstandsforGlobalPositioningSystem,whichisasatellite-basednavigationsystemthatprovideslocationandtimeinformationinallweatherconditions,anywhereonorneartheEarth'ssurface.OptionB,GlobalPowerSupply,isunrelated.OptionC,GlobalProtectionService,isnotastandardtermintechnology.OptionD,GlobalPersonalSystem,isnotarecognizedacronym.Hence,Aisthecorrectanswer.3.参考答案：B解析：Radioisprimarilyusedforcommunicationoverlongdistancesusingradiowaves.Television(A)isusedforbroadcastingvisualcontent.Computers(C)aregeneral-purposedevicesforvarioustasks.Smartphones(D)aremultifunctionaldevicesbutnotprimarilyusedforlong-distancecommunicationviaradiowaves.Therefore,Bisthecorrectanswer.4.参考答案：C解析：Digitizationistheprocessofconvertinganalogsignalsintodigitalsignals.Amplification(A)involvesincreasingthepowerofasignal.Modulation(B)istheprocessofvaryingacarriersignal.Amplification(D)isarepetitionofoptionA.Hence,Cisthecorrectanswer.5.参考答案：B解析：Afirewallincomputernetworksisprimarilyusedtoprotectagainstunauthorizedaccessbyfilteringincomingandoutgoingnetworktrafficbasedonpredeterminedsecurityrules.Increasinginternetspeed(A)isnotitsmainfunction.Improvingemaildelivery(C)isnotitsprimarypurpose.Reducingpowerconsumption(D)isnotaprimaryfunctionofafirewall.Therefore,Bisthecorrectanswer.6.参考答案：C解析：Solarenergyisarenewableenergysourcethatharnessesenergyfromthesun.Coal(A)andnaturalgas(B)arefossilfuelsandarenotrenewable.Nuclearenergy(D)isnotrenewable.Thus,Cisthecorrectanswer.7.参考答案：A解析：APIstandsforApplicationProgrammingInterface,whichisasetofrules,protocols,andtoolsthatallowsdifferentsoftwareapplicationstocommunicatewitheachother.AdvancedProgrammingIntegration(B)isnotastandardterm.AutomaticProgramInteraction(C)isnotthecorrectdefinition.ApplicationProcessIntegration(D)isnotthestandardacronym.Therefore,Aisthecorrectanswer.8.参考答案：A解析：Moore'sLawreferstotheobservationmadebyGordonMoorein1965thatthenumberoftransistorsonamicrochipdoublesapproximatelyeverytwoyears.Themaximumspeedofacomputerprocessor(B)isnotwhatMoore'sLawdescribes.Theminimumdistancebetweentransistorsonachip(C)isrelatedtotechnologybutnotMoore'sLaw.Thecostofmanufacturingamicrochip(D)isnotthefocusofMoore'sLaw.Hence,Aisthecorrectanswer.9.参考答案：C解析：Wi-Fiisatechnologyusedtotransmitdataovertheinternetusingradiowaves.Ethernet(A)usescablesfordatatransmission.Fiberoptics(B)useslightpulsesthroughopticalfibers.Bluetooth(D)isusedforshort-rangewirelesscommunication.Therefore,Cisthecorrectanswer.10.参考答案：C解析：Theprimaryfunctionofasearchengineistoindexandretrieveinformationfromtheinternetbasedonuserqueries.Creatingwebsites(A)isnotitsmainfunction.Hostingwebsites(B)isnotitsprimaryrole.Designingwebsites(D)isnotitsmainpurpose.Hence,Cisthecorrectanswer.二、填空题1.参考答案：take解析：考查动词辨析。takeup意为“占据（时间、空间等）”，takephotos意为“拍照”，根据句意“新的智能手机可以______多达1000张照片”，应填take。其他选项如useup意为“用完”，catchup意为“赶上”，不符合句意。2.参考答案：informed解析：考查形容词辨析。stayinformed意为“保持了解”，根据句意“我的父亲经常在电视上看新闻以保持______时事”，应填informed。其他选项如interested意为“感兴趣的”，connected意为“连接的”，不符合句意。3.参考答案：cure解析：考查名词辨析。acure意为“治愈”，根据句意“科学家们正在研究一种______来治愈癌症”，应填cure。其他选项如treatment意为“治疗”，solution意为“解决方案”，不符合句意。4.参考答案：app解析：考查名词辨析。anapp意为“应用程序”，根据句意“我使用一个______来帮助我记忆英语单词”，应填app。其他选项如program意为“程序”，tool意为“工具”，不符合句意。5.参考答案：do解析：考查动词辨析。dotasks意为“做任务”，根据句意“机器人可以______对人类来说危险的任务”，应填do。其他选项如perform意为“执行”，handle意为“处理”，不符合句意。6.参考答案：energy解析：考查名词辨析。saveenergy意为“节约能源”，根据句意“离开房间时请关掉灯以节约______”，应填energy。其他选项如water意为“水”，time意为“时间”，不符合句意。7.参考答案：internet解析：考查名词辨析。thehistoryoftheinternet意为“互联网的历史”，根据句意“她正在读一本关于______历史的书”，应填internet。其他选项如computer意为“计算机”，technology意为“技术”，不符合句意。8.参考答案：pollution解析：考查名词辨析。reducepollution意为“减少污染”，根据句意“我们应该保护环境并减少______”，应填pollution。其他选项如waste意为“废物”，noise意为“噪音”，不符合句意。9.参考答案：gadget解析：考查名词辨析。anewgadget意为“新装置”，根据句意“公司正在开发一种新的______用于虚拟现实”，应填gadget。其他选项如device意为“设备”，tool意为“工具”，不符合句意。10.参考答案：science解析：考查名词辨析。interestedinscience意为“对科学感兴趣”，根据句意“他对______非常感兴趣，经常参观科学博物馆”，应填science。其他选项如technology意为“技术”，nature意为“自然”，不符合句意。三、判断题1.参考答案：×解析：Artificialintelligence(AI)isarapidlyadvancingtechnologythatcanautomatemanytasksandpotentiallyreplacesomehumanjobs,butitisunlikelytocompletelyreplaceallhumanjobsinthefuture.AIlacksthecreativity,emotionalintelligence,andcomplexdecision-makingcapabilitiesthathumanspossess.Therefore,thestatementthatAIcancompletelyreplacehumanjobsinthefutureisincorrect.2.参考答案：√解析：CharlesBabbageisoftenreferredtoasthe"fatherofcomputers"becausehedesignedthefirstmechanicalcomputer,theAnalyticalEngine,inthe19thcentury.AlthoughtheAnalyticalEnginewasneverbuiltduringhislifetime,hisworklaidthefoundationformoderncomputing.Thestatementiscorrect.3.参考答案：√解析：5Gtechnologyofferssignificantlyfasterinternetspeedscomparedto4G.5Gnetworkscanprovidedownloadspeedsofupto1Gbps,whichismuchfasterthanthetypicalspeedsofferedby4Gnetworks.Thismakes5Gmoresuitableforbandwidth-intensiveapplicationssuchasstreaminghigh-definitionvideo,virtualreality,andaugmentedreality.Thestatementiscorrect.4.参考答案：√解析：Virtualreality(VR)technologyisindeedwidelyusedinmedicaltraining.VRallowsmedicalstudentsandprofessionalstopracticesurgicalprocedures,diagnosediseases,andtreatpatientsinasimulatedenvironment.Thistechnologyprovidesasafeandcost-effectivewaytogainpracticalexperiencewithoutriskingpatientsafety.Thestatementiscorrect.5.参考答案：√解析：TheMarsRover,suchasNASA'sCuriosityandPerseverance,hassuccessfullyexploredthesurfaceofMars.Theserovershavecollectedsoilsamples,takenphotographs,andconductedscientificexperiments,providingvaluabledataabouttheMartianenvironment.Thestatementiscorrect.6.参考答案：√解析：Quantumcomputersusequantumbits(qubits)thatcanexistinmultiplestatessimultaneously,allowingthemtoperformcalculationsmuchfasterthantraditionalcomputers.Quantumcomputershavethepotentialtosolvecomplexproblemsthatarecurrentlyimpossiblefortraditionalcomputerstosolveinareasonableamountoftime.Thestatementiscorrect.7.参考答案：√解析：TimBerners-LeeinventedtheWorldWideWeb(WWW)in1989whileworkingatCERN.Hedevelopedthefirstwebbrowserandthebasicprotocolsthatallowcomputerstocommunicateandshareinformationovertheinternet.Thestatementiscorrect.8.参考答案：×解析：3Dprintingtechnologyisnotlimitedtocreatingplasticobjects.Itcanuseavarietyofmaterials,includingmetals,ceramics,andevenbiologicaltissues.3Dprintingallowsforthecreationofcomplexandcustomizedobjectsacrossmanyindustries,suchasaerospace,healthcare,andmanufacturing.Thestatementisincorrect.9.参考答案：×解析：Renewableenergysourcesarenotalwaysmoreexpensivethanfossilfuels.Whiletheinitialinvestmentforrenewableenergytechnologieslikesolarpanelsandwindturbinescanbehigh,theoperationalcostsareoftenlower,andthelong-termbenefitsincludereducedenvironmentalimpactandenergyindependence.Inmanycases,renewableenergycanbecost-competitivewithfossilfuels.Thestatementisincorrect.10.参考答案：×解析：ThefirstsmartphonewasintroducedbyApplein2007,butitwasnotthefirstmobilephonewithinternetcapabilities.ThefirstmobilephonewithinternetcapabilitieswastheIBMSimonPersonalCommunicator,releasedin1994.TheiPhone,however,revolutionizedthesmartphoneindustrywithitsuser-friendlyinterfaceandinnovativefeatures.Thestatementisincorrect.四、简答题1.参考答案：Renewableenergysourceshaveseveraladvantages,suchasbeingsustainableandenvironmentallyfriendly,reducingpollution,andprovidingenergysecurity.解析：本题考查对可再生能源优势的理解。可再生能源如太阳能、风能等取之不尽、用之不竭，且在使用过程中产生的污染少，有助于保护环境。此外，发展可再生能源可以减少对化石燃料的依赖，提高能源安全。这些优势是可再生能源被广泛推广的重要原因。2.参考答案：TheInternethaschangedpeople'sdailylivesinmanyways,suchasprovidingeasyaccesstoinformation,enablingonlinecommunication,andofferingconvenientshoppingoptions.解析：本题考查互联网对日常生活的影响。互联网使人们可以快速获取信息，通过社交媒体、电子邮件等方式进行交流，还可以在线购物、观看视频等。这些变化极大地提高了生活的便利性和效率，但也带来了一些问题，如信息过载和网络成瘾。3.参考答案：Asmartphoneisahandhelddevicethatcombinesthefunctionsofamobilephone,computer,camera,andotherelectronicdevices.Itsbasicfunctionsincludemakingcalls,sendingmessages,browsingtheInternet,takingphotos,andrunningvariousapplications.解析：本题考查智能手机的基本功能。智能手机集成了多种功能，如通话、短信、上网、拍照等，是现代生活中不可或缺的工具。其多功能性使其在各个领域都有广泛应用。4.参考答案：Protectingtheenvironmentisimportantbecauseithelpsmaintainecologicalbalance,ensurestheavailabilityofnaturalresourcesforfuturegenerations,andimproveshumanhealth.解析：本题考查环境保护的重要性。环境保护有助于维持生态平衡，确保自然资源可持续利用，并减少环境污染对人类健康的影响。此外，环境保护也是应对气候变化、减少自然灾害的重要措施。5.参考答案：Themaindifferencesbetweencomputersandsmartphonesaretheirsize,portability,andfunctionality.Computersarelarger,lessportable,andmorepowerful,whilesmartphonesaresmaller,moreportable,anddesignedforeverydaytasks.解析：本题考查计算机和智能手机的区别。计算机体积较大，便携性较差，但功能强大，适合处理复杂任务；智能手机则小巧便携，适合日常使用，但在处理复杂任务时不如计算机高效。6.参考答案：Technologycanhelpstudentsintheirstudybyprovidingaccesstoonlineresources,enablinginteractivelearning,andofferingpersonalizedlearningtools.解析：本题考查科技对学生学习的影响。科技为学生提供了丰富的在线学习资源，如电子书、