Unit6Whenwasitinvented第三课时SectionA(GrammarFocus～4c)【学习目标】1．掌握下列词汇：bell，musical，instrument，biscuit，fridge，low2．进一步复习巩固学习SectionA部分所学的生词和短语。3．进一步学习运用一般过去时态的被动语态。【学习重点】复习巩固SectionA部分所学的生词和短语，达到熟练运用的目标。【学习难点】掌握主动语态变被动语态的方法，并通过不同方式的练习，来熟练运用。☞学习提示Review：Lastlesson3atoldusaboutaccidentaldiscoveryoftea.Whatdidyoulearnfromthestory？Whocanretellhowteawasdiscoveredanditsdevelopment？(showingsomekeywordsandphrasescanhelpthem)Task1☞学习提示StudentspreviewthewordsonP44，readthembyphoneticsymbolsandmarktheminthetext.Task2☞学习提示1．StudentsreadandtranslatethesentencesinGrammarFocus，underline“wasinvented，wasbrought，isusedfor”，andsayoutwhatgrammaritstandsfor.2．Teacherguidesstudentsfinishingtheexercisesin4a，4b，4candchecktheanswerswithstudents.3．Studentsdesignthescene，talkaboutlearningmethodsandmakedialogueswiththepassivevoiceofthepast.情景导入生成问题关键单词及短语：①byaccident；②Itwassaid…；③ShenNong；④fallinto；⑤LuYu…自学互研生成能力Task1Let'sreadnewwordsandthephrases.1．Icanread.(我会读)预习下列单词，争取自己能正确拼读。拼读成功后再在课文中把单词标记出来。low，bell，instrument，musical，biscuit，cookie2．Icanwrite.(我会写)翻译下列词语：(1)以一个很低的价格at__a__low__price(2)建议某人不要做某事advise__sb.not__to__do__sth.(3)workon从事，进行Task2Let'smakeconversationsandinterview.1．Icanpractice.(我会练)(1)根据汉语意思完成英语句子，每空一词。①它是由谁发明的？Whowasitinventedby?②不同的作家把这本书翻译成不同的语言。Differentwriterstranslatedthebookintodifferentlanguages.③有人从旅馆偷了我的相机。Somebodystolemycamerafrommyhotelroom.(2)完成教材P44中4a和4b的练习。2．Icanmakeconversations.(我会编对话)用被动语态编写对话。A：When__was__the__car__invented?B：It__was__invented__in__1885.A：When__were__electric__slippers__invented?B：They__were__invented__last__year.A：Who__were__they__invented__by?B：They__were__invented__by__Julie__Thompson.A：What__were__they__used__for?B：They__were__used__for__seeing__in__the__dark.3．Icansummarize.(我会总结)(1)特殊疑问句的被动语态【备注】和主动句一样，仍将疑问词置于句首。若主动句的疑问词是who，变被动句时要改为bywhom置于句首，也可仍用who，而将by置于句末；若主动句的疑问词是whom，则改为who，其余疑问句不变。Whoboughtthebook？→Whowasthebookboughtby？或Bywhomwasthebookbought？谁买了这本书？(2)主动语态变被动语态应注意的问题：有些短语动词相当于及物动词，变为被动句时介词或副词不能去掉；含有双宾语的主动句变为被动句时，通常把指“人”的间接宾语变为主语，指“物”的直接宾语保留不变；如果把指“物”的直接宾语变为主语，则在间接宾语前加to或for；主动句中感官动词see/hear/watch/feel等和使役动词make/let/have等后跟省略to的动词不定式，变为被动语态时应加上不定式符号to。(24分钟)Showingroups.(Time：sixminutes)Firstthestudentsreadthewordsandphrasesingroups，thenreadtogetherandsumuptheusageofthewordsingroups，thenmarkthedifficultwordsinpronunciationandunderstanding(theycanasktheteacherforhelp)．Atlastwritethemontheblackboard.FirstthestudentsdiscussandchecktheanswersinTask2，thendiscussandsetscenestoperformdialogues.Atlastwriteshowcontentsontheblackboard.Classshow.(Time：sixteenminutes)1．Icanread.①Readtogether，payattentiontothepronunciationofnewwords；②Consolidatethewordlearningbywordgame.2．Icanwrite.①Studentstranslateth...
