When was it invented.ppt

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1、Unit9Whenwasitinvented?ThefirstperiodTalkaboutthehistoryofinventions.Thepassivevoice.LanguageGoals:GrammarFocus:GROUPWORKWhowasitinventedby?Itwasinventedby____.Whatisit?Microwaveovenshoeswithadjustableheelsbattery-operatedslippersheatedicecreamscooplightbulbsThink:Whatisit/aretheyusedfor?1b

2、Listenandmatchtheinventionswiththedates.abedc18761885192719711976dabec2aListenandnumbertheinventionsintheorderthatyouhear.2bListenagain.Matchtheinventionswiththeirinventorsanduses.Inventionshoeswithadjustableheelsbattery-operatedslippersheatedicecreamscoopWhowasit/weretheyinventedby?Chelsea

3、LanmonJayceCoziarandJamieEllsworthJulieThompsonWhatisit/aretheyusedfor?scoopingreallycoldicecreamseeinginthedarkchangingthestyleoftheshoesGrammarFocusam/are/is+动词的过去分词,体现一般现在时的被动语态was/were+动词的过去分词,体现一般过去时的被动语态ThePassiveVoice英语根据其谓语动词与主语的关系分为两种语态TheActiveVoiceandthePassiveVoice.主动语态表示主语是动作执行

4、者,被动语态表示主语是动作的承受者。被动语态谓语结构；be+动词的过去分词Be体现时态，Be的不同形式就体现不同的时态.Forexample,1.Weboughtsomebooksyesterday.2.Wewillfinishtheworkintwodays.3.Theyaresingingasongnow.将下列句子由主动句变为被动句或由被动句变为主动句：1)ThebikewasfixedupbyJimmy.(变主动句)2)Peopleusesunglassestoprotecttheireyes.3)Dotheyusetheboxasatable?4)Whendidyo

5、urfathertookyoutothepark?5)Bytheendoflastyear,wehadlearnedmorethan2,000Englishwords.6)Wehavelearned500wordssincelastyear.7)Tomwasdoinghomeworkat9:00yesterdayevening.SummarymusiccandleactivityglassestemperaturecupTrytobeaninventor!GoodBye!