help yourself by helping others教案3

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1、Unit9教学目标知识目标1.Graspthewords.2.RevisethePassivevoice能力目标ImprovetheSs’abilityofsummary.情感、态度、价值观LettheSsknowthathelpingothersishelpingthemselves.教学重点1.Thenewwords.2.TheusageofthePassivevoice教学难点1.Grammar2.LettheSsgraspthestructurecorrectly.教学设计思路Reviewing---Practicing----Grasping教法Task-based

2、Method学法Cooperation课前准备PPT教学过程教学环节教师活动学生活动设计意图二次备课课题引入Step1.Review1.Reviewsomeusefulwordsandphrases.2.Haveadictation.ReadwordsandphrasesReviewandconsolidateloudly教学过程教学环节教师活动学生活动设计意图二次备课课程实施Step2.Presentation1.Givesomesentences,letthestudentsfindouttheuseandformofthePassivevoice2.Summary被动语

3、态的用法：1.定义：即不知道动作的执行者或强调动作的承受者的一种语态。2.谓语动词的构成：be+done(过去分词)(+by+动作执行者)3.主动语态：S.+v.+O.被动语态：O.+be+v.-ed+byS.4.被动语态的用法：A.不知道动作的执行者是谁。e.g.ThiswatchismadeinChina.B.没有必要指出动作的执行者是谁。e.g.Dosomeexercises.Knowsomethingimportant.LeadinthePassivevoiceMoretreesmustbeplanted.A.需要强调或突出动作的承受者。e.g.Chineseissp

4、okenbymoreandmorepeopleintheworld.B.句子的主语是动作的承受者。e.g.Manyhouseswerewashedawayintheflood.5.被动语态的各种时态变化：即be的变化e.g.Hewritesabook.一般现在时：am/is/aredonee.g.Abookiswrittenbyhim.一般过去时：was/weredonee.g.Abookwaswrittenbyhimlastmonth.一般将来时：willbedonee.g.Abookwillbewrittenbyhimnextweek.过去将来时：wouldbedonee

5、.g.Hesaidabookwouldbewrittenbyhim.现在进行时：am/is/arebeingdonee.g.Abookisbeingwrittenbyhimnow.过去进行时：was/werebeingdoneSumupbythestudentsDosomeexercisesPreparefortheirskills.Letthestudentsknowtheusageofthestructuree.g.Hesaidabookwasbeingwrittenbyhim.现在完成时：have/hasbeendonee.g.Abookhasbeenwrittenby

6、him.过去完成时：hadbeendonee.g.Abookhadbeenwrittenbyhimbytheendoflastmonth.6.含有情态动词的被动语态：Can/may/mustbedonee.g.Abookmustbewrittenbyhimnow.7.带双宾语的谓语动词变被动语态：可以将间接宾语转化为主语，则保留直接宾语；若将直接宾语转化为主语则保留间接宾语，且在被保留的间接宾语前加上介词to或for.E.g.Shegavemeabook.Iwasgivenabook.Abookwasgiventome.8.主动语态中省略的to变被动语态时要加上。主动语态中在

7、感官动词see,hear,watch,feel,notice等和使役动词let,make,have等后省略的to,变被动语态时要加上。e.g.Hemakesthegirlstayathome.——Thegirlismadetostayathome.Weheardhimsinginthenextroom.——Hewasheardtosonginthenextroom.7.不及物动词happen,takeplace等没有被动语态形式。e.g.Thecontestwilltakeplacenextweek.8