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ID:38701701
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时间:2019-06-17
《《电子技术专业英语》单元设计02》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、广州城建职业学院课程单元设计(首页)课题(项目)ElectricalComponents授课时间年月日星期第节课类/课序理论/第2次课授课地点班级/小组10移动通信单元学时2能力(技能)目标:能用英语表达常用的电子元器件知识目标:Letstudentsknow:1)Whatisaresistor?2)WhatisOhmlaw?3)Whatisacapacitorandwhatisainductor?4)variouslowvoltageapparatus能力训练任务及案例:英语朗读以及回答问题。案例:电阻说明书教学重
2、点、难点与解决办法:重点:学习电子技术中一些元件的表达难点:学生的阅读能力解决方法:图示法教学过程设计思路:1、介绍本次课的知识目标与能力目标2、提出要求学生回答的问题3、听力训练回答问题4、讲解重点内容,学生朗读5、完成课后作业6、总结优化程序参考资料与设备、工具和材料的配置:Multimediateaching课程单元设计(续页)教学内容(训练项目)设计教学方法与手段设计学生活动(训练任务)设计时间分配(分钟)ReviewKnowledgegoalandAbilitygoalCurriculumcontentLi
3、steningandanswerquestion1Resistors2CapacitorsMultimediateach+demonstrate+discussionAnswerquestionListeningListeningandAnswerquestionListeningandAnswerquestionReadingAresistorisanelectricalcomponentthatresiststheflowofelectricalcurrent.Theamountofcurrent(I)flowi
4、nginacircuitisdirectlyproportionaltothevoltageacrossitandinverselyproportionaltotheresistanceofthecircuit.ThisisOhmlawandcanbeexpressedasaformula:.Theresistorisgenerallyalineardeviceanditscharacteristicsformastraightlinewhenplottedonagraph.ListeningandAnswerque
5、stion531520203Inductors4summaryAcapacitorisanelectricaldevicethatcantemporarilystoreelectricalenergy.Basically,acapacitorconsistsoftwoconductors(metalplates)separatedbyadielectricinsulatingmaterial(Fig2.3(a)),whichincreasestheabilitytostoreacharge.Thedielectric
6、canbepaper,plasticfilm,mica,ceramic,airoravacuum.Theplatescanbealuminumdiscs,aluminumfoilorathinfilmofmetalappliedtooppositesidesofasoliddielectric.ListeningandAnswerquestionAninductorisanelectricaldevice,whichcantemporarilystoreelectromagneticenergyinthefielda
7、boutitaslongascurrentisflowingthroughit.Theinductorisacoilofwirethatmayhaveanaircoreoranironcoretoincreaseitsinductance.Listening、discussionandAnswerquestion125课后作业布置:Translation:Aresistorisanelectricalcomponentthatresiststheflowofelectricalcurrent.Theamountofc
8、urrent(I)flowinginacircuitisdirectlyproportionaltothevoltageacrossitandinverselyproportionaltotheresistanceofthecircuit.Resistorsareusedtolimitcurrentflowingtoadevice,thereb
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