人教版高中英语必修2《ONTENTSUnit1CulturalreliceLearningaboutLanguage》公开课教案26

1、Unit3ComputersGrammarAimsofthelesson1，Toinquireintothepresentperfectpassivevoice.2，Tomasterthestructure,anduseitinthedefinedcontext.3，Tolisten,read,writefollowingsentencesrightly:Ihavebeenusedinofficesandhomessincethe1970s.IneverforgetanythingIhavebeentold!Sincethe1970smanynewapplicationshavebeenfou

2、ndforme.Ihavealsobeenputintorobotsandusedtomakemobilephonesaswellashelpwithmedicaloperations.IhaveevenbeenputintospacerocketsandsenttoexploretheMoonandMars.Teachingmethods:Task-basedteachingandsuggestopediaTeachingaids:Multi-mediacomputer,PPT,chalkTeachingprocedures:Step1:Warmingup(1min)Freetalk.Tea

3、chersayhellotoeveryone.T:Goodmorning,boysandgirls.Tellajoke，thenask：“Haveyouheardofit,anddoyouthingitfunny？S：YesT：Youhaveenjoyedmyjok.soyoumayhaveenergytolistentomecarefully.Step2:Leadingin(3min)Showalittlepieceofpoem,givethestudentsageneralimpressionaboutthesentencesonthebasis.Theteacherreadthefirs

4、tpart,andthenletthestudentsreadtherestspartofthepoem.Thecontextofpoemisasfollowing:LookatthewayyourfacehasbeenwashedLookatthewayyourhairhasbeencombedLookatthewayyourshoeshasbeencleanedYoudbetterdothemagain.Step3:Structure(5min)1,Theteacherpresentthestructureanddefinitionofthepresentperfectpassivevoi

5、ce.此刻达成时的主动语态：havehasdone此刻达成时的被动语态：havehasbeendone2,Characteristica:主语是行为动作的承受着b,说话时已经达成的动作或出现的结果c,动作或状态始于过去，连续到此刻，并可能连续下去d,用在时间和条件状语从句中，表示未来某时已达成的动作Step4:Usage(4min)Basedontheformerprocedure,studentshadalreadyhandledthefundamentalmethods.Inthispart,studentsshouldpayattentiontotheextrapoint.1,副词的地点

6、：often,usually,always,never,hardly,seldom等副词置于havehas和been中间.2,其实不是全部的动词都有被动语态1）happen,takeplace,breakout,belongto,cost,last等不及物动词或词组无被动语态.2）open,break,drop等不重申换作发出者经常用主动语态.3,短语动词不行切割或省略此中的介词或副词.Step5:Consolidationandexercises(6min)(1)Giveoneexamplefromthetext.Letthestudentsfindothersentenceswhichha

7、vethesamestructure.Example:FirstasaPC(personalcomputer)andthenasalaptop,Ihavebeenusedinofficesandhomessincethe1970s.(2)Theteachershowsomepicturestostudents.Letthemdosomeexercisesandconsolidationthisgrammar.TheteachergivethestudentsthreeCollegeentranceexaminationquestions,thenworkoutthemtogether.Step6:Homew