《Unit-3-The-Internet-Discovering-Useful-Structure》教案(附导学案)

《Unit3TheInternetDiscoveringUsefulStructure》教案【教学目标】1.GuidestudentstoreviewthebasicusagesofthePresentPerfectPassiveVoice.2.LeadstudentstolearntousesomespecialcasesconcerningthePresentPerfectPassiveVoiceflexibly.2.Enablestudentstousethebasicphrasesstructuresflexibly.3.Strengthenstudents’greatinterestingrammarlearning.【教学重难点】1.HelpstudentstoappreciatethefunctionofthePresentPerfectPassiveVoiceinasentence.2.InstructstudentstowriteessaysusingtheproperthePresentPerfectPassiveVoice.【教学过程】Step1:Reviewing引导学生观察下列句子特点，总结共同点。1．(教材P28)MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb．2．(教材P28)ButtheInternethasdonemuchmoreforpeoplethansimplymakelifemoreconvenient．3．(教材P28)Manypeoplehavebeenhelpedbytheclub．4．(教材P28)Shenolongerfeelslonely,andhercompanyhasbecomequitesuccessful．5．(教材P32)TodayIthoughtI’dblogaboutaquestionthathasbeenaskedmanytimes—howdoyoustaysafeonlineandavoidbadexperiencesontheInternet?Step2:Presentation一、常与现在完成时连用的时间状语有：already 已经 yet已经recently/lately最近 sincethen从那时起eversince自那以来 ever 曾经sofar 迄今为止 bynow 到现在为止foralongtime很长一段时间inrecentyears在最近几年里in/during/overthepast/lastyears 在过去的几年里二、现在完成时态的意义。1．现在完成时的被动语态强调一个发生在过去的被动性的动作，动作已完成并强调对现在造成的影响或结果，主语和谓语之间为被动关系。Thedoorhasalreadybeenlocked.门早已经被锁上了。Ihavebeenemployedatthejobsince2015.自从2015年，我就做这份工作。2．基本构成现在完成时的被动语态的结构为has/havebeendone。Alotofmoneyhasbeenspenttoprotecttheoldtemplebynow.到目前为止已投入了大笔钱来保护这座古庙。Thesetreeshavebeenwateredlately.那些树最近已浇水。2)带有双宾语的动词，如give,send,bring,take,teach,show,tell,make,sing,write,read,sell,buy,pay,lend,pass,promise等，变为被动语态时，一般将间接宾语变为被动语态的主语，若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。Wehavegivenhimthebook.→Hehasbeengiventhebook.→Thebookhasbeengiventohim.现在完成时的被动语态的用法1．现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，通常与already,yet,just,never,recently等副词连用。◆Themachinehasalreadybeenrepaired．机器已经修好了。2．表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“Howlong…？”句型中。◆Financialproblemsofthecompanyhavebeendiscussedfornearlytwohours．公司的财务问题已被讨论了近两个小时了。3．用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。◆Youshouldn’tleaveschoolbeforeyourhomeworkhasbeenfinished．在你的作业没完成之前你不应该离开学校。使用现在完成时的被动语态要注意的问题1．现在完成时的被动语态、现在进行时的被动语态及一般过去时的被动语态的区别Themachinehasbeenrepaired.(说明动作发生在过去，对现在有影响，“现在修好了”)Themachineisbeingrepairednow.(说明动作正在进行)Themachinewasrepairedyesterday.(只说明动作发生在过去)2．非延续性动词，如borrow,finish,begin,start,buy,marry,open,join等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，则要改换动词或时态，例如：工程已开始三个月了。Theprojecthasbeenstartedforthreemonths.(F)Theprojecthasbeenonforthreemonths.(T)3.带有复合宾语的动词变为被动语态时，若宾语补足语为省略to的不定式充当时，在被动语态中需将省掉的to加上。Thebosshasmadehiscompanyoffermorechancesforpeopletowork.→Hiscompanyhasbeenmadetooffermorechancesforpeopletowork.(4)动词短语是一个不可分割的整体，在被动语态中要保持其完整性，其中的介词或副词不可省略。It'ssaidthattheproblemhasbeenlookedinto.据说已经调查了这个问题。总结：现在完成时的被动语态的结构肯定式主语＋have/hasbeendone…否定式主语＋have/hasnotbeendone…一般疑问式Have/Has＋主语＋beendone…？特殊疑问式疑问词＋have/has＋主语＋beendone…？Step3Drill时态填空。1.He_______________________(select)totakepartinthesportsmeeting．2.Theink___________________________________(remove)fromhisovercoat．3.Hasthedateforthenextmeeting____________________________(decide)?4.Howlonghasthebattery________________________________(change)?句型转换：Thechildrenhavealreadybeentoldthegoodnews．1.上面的句子变为否定句。________________________________________________________2.将上面的句子变为一般疑问句。________________________________________________________3.对上面句子中的Thechildren进行提问。_______________________________________________________Step4Homework:完成课后练习。Unit3TheInternetDiscoveringUsefulStructure导学案【学习目标】1.ToreviewthebasicusagesofthePresentPerfectPassiveVoice.2.TolearntousesomespecialcasesconcerningthePresentPerfectPassiveVoice.【学习重难点】1.ToappreciatethefunctionofthePresentPerfectPassiveVoiceinasentence.2.TowriteessaysusingtheproperthePresentPerfectPassiveVoice.【学习过程】Step1:课前诊断一、观察下列句子特点，总结共同点。1．(教材P28)MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.2．(教材P28)ButtheInternethasdonemuchmoreforpeoplethansimplymakelifemoreconvenient.3．(教材P28)Manypeoplehavebeenhelpedbytheclub.4．(教材P28)Shenolongerfeelslonely,andhercompanyhasbecomequitesuccessful.5．(教材P32)TodayIthoughtI’dblogaboutaquestionthathasbeenaskedmanytimes—howdoyoustaysafeonlineandavoidbadexperiencesontheInternet?共同点：_________________________________________________________二、知识梳理1.常与现在完成时连用的时间状语有哪些？2.现在完成时态的意义是什么？（1）现在完成时的被动语态强调一个发生在过去的__________，动作已_________并强调对现在造成的_________，主语和谓语之间为_________关系。Thedoorhasalready______________________(lock).门早已经被锁上了。Ihave_________________(employ)atthejobsince2015.自从2015年，我就做这份工作。（2）基本构成①现在完成时的被动语态的结构为_________________________________Alotofmoney______________________(spend)toprotecttheoldtemplebynow.Thesetrees______________________________(water)lately.②带有双宾语的动词，如give,send,bring,take,teach,show,tell,make,sing,write,read,sell,buy,pay,lend,pass,promise等，变为被动语态时，一般将间接宾语变为被动语态的主语，若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。Wehavegivenhimthebook.→____________________________________________________________Step3小试牛刀时态填空。1.He____________________(select)totakepartinthesportsmeeting．2.Theink________________________________(remove)fromhisovercoat．3.Hasthedateforthenextmeeting_______________________(decide)?4.Howlonghasthebattery______________________________(change)?句型转换：Thechildrenhavealreadybeentoldthegoodnews．1.上面的句子变为否定句。________________________________________________________2.将上面的句子变为一般疑问句。________________________________________________________3.对上面句子中的Thechildren进行提问。_______________________________________________________Step4课后巩固1.They_______________________(sell)tenapartmentsinthepastonehour.2.He______________________(buy)apresentwhenshevisitedXinjiang.3.He______________________already______________________(ask)tohelpyou.4.Thecompany_________________(make)itsworkerswork5.Anotice_________________already_________________(putup)onthewall.6.Sincewerealizedthatweshouldstudyhard,ourtime__________