李慧芳unit9.ppt

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1、城郊中学李会芳Unit9Whenwasitinvented?SectionALesson1Whoistheman?HeisThomasEdison(1847—1931)Morethan2000inventionswereinventedbyhim,suchasbulb(电灯）,gramophone（留声机）,moviewithvoice（有声电影）.Hewascalledgreatkingofinventions.Hewasaninventorandhehadmanyinventionsinhislife.

2、calculatorWhenwasitinvented?Whenwasitinvented?Whenwasitinvented?Whenwasitinvented?Whenwasitinvented?12345A:Ithinkthecalculatorwasinventedbeforethecomputer.B:Ithinkthecalculatorwasinventedafterthecomputer.Part1Praticeinpairsdaceb___1876___1885___1927___1971

3、___1976daecbauditionWhenwasitinvented?Whowasitinventedby?Whatisitusedfor?Itwasinventedin1903.ItwasinventedbytheWrightbrothers.It’susedfortravellingintheair.Whenwasitinvented?Whowasitinventedby?Whatisitusedfor?Itwasinventedin1876.ItwasinventedbyEdison.It’s

4、usedforkeepingvoice.gramophone(留声机)MicrowaveovenWhatisitusedfor?It’susedforheatingfood.Part2Mp3Whatisitusedfor?It’susedforlisteningtomusicWhatisitusedfor?It’susedforcallingupsomeoneMobilephoneIthinkcomputeristhemosthelpfulinvention.Becauseithelpsmesearchth

5、einformationthatIneed.part3Asurvey:Whatdoyouthinkisthemosthelpful/annoyinginventions?NameHelpfulinventionsWhyAnnoyinginventionswhyUsefulexpressions:A:Whatdoyouthinkisthemosthelpful/annoyinginvention?B:Ithinkthemosthelpfulinventionis…A:Whyisthat?B:Well,itgi

6、ves/helpspeople…part4Whowas(telephone)inventedby?ItwasinventedbyBell.HenryFordEdisonBellTs’aiLunWrightbrothersfisherinventorsinventionsPapermakingPlaneWashingmachineLightbulbCarTelephone1bListenandmatchtheinventionswiththedates.abedc18761885192719711976dab

7、ec18761885192719711976part5Whenwasthecarinvented?Itwasinventedin1885.1.被动语态定义被动语态表示主语是动作的承受者。如：ThetelephonewasinventedbyBellin1876.2.被动语态的构成被动语态由“助动词be+及物动词的过去分词“构成。助动词be有人称、数和时态的变化，其变化规则与be作为连系动词时完全一样。如：(1).Itwasinventedin1876.(2)Theyareusedforlisteningt

8、omusic.3.被动语态的用法当我们不知道谁是动作的执行者或者没有必要指出谁是动作的执行者，或者只须强调动作的承受者时，要用被动语态，如：EnglishisspokeninCanada.Grammar:Thepassivevoice(被动语态）HOMEWORK:Discusswithyourclassmatesafterclass:Whichinventionswouldyouhaveifyouwerealo