广东省珠海九中九年级英语全册《Unit9Whenwasitinvented》课件人教新目标版.ppt

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1、Whenwasitinvented?Unit9Whatisinvention?Aninventionisanewthingthatsomeonehasmade.Whenwasitinvented?189619391709英语中的动词有两种语态：主动语态(TheActiveVoice)和被动语态(ThePassiveVoice)。主动语态中，主语是谓语动作的执行者，被动语态中，主语是谓语动作的承受者。被动语态的构成：be+及物动词的过去分词被动语态(ThePassiveVoice)一般现在时态的被动语态：am/is/ar

2、e+p.p一般过去时态的被动语态：was/were+p.p一般将来时态的被动语态：willbe+p.p现在完成时态的被动语态：have/hasbeen+p.p现在进行时态的被动语态：am/is/arebeing+p.p过去完成时态的被动语态：hadbeen+p.p含有情态动词的被动语态：can/may/must…be+p.p被动语态(ThePassiveVoice)主动句变被动句的方式：主动句：主语+及物动词谓语+宾语被动句：主语+be+过去分词+by宾语Ourteacherlovesherstudents.Herst

3、udentsarelovedbyourteacher.被动语态(ThePassiveVoice)请把下列主动句变为被动句。Theyproducedthatkindofcar.Theworkersbuiltabridgeovertheriver.Mothertellsmeastoryeveryday.Thatkindofcarwasproducedbythem.Abridgewasbuiltbytheworkersovertheriver.IamtoldastorybyMothereveryday.Whatorderdo

4、youthinktheywereinvented?Numberthem[1—5]12345Listenandmatchtheinventionswiththedates.abceWhenwasthetelephone?Ithinkitwasinventedin1876.Listenandnumbertheinventionsintheorderyouhearthem.123ListenagainandmatchtheitemsincolumnsA,BandC.beusedfor被动语态,“被用来做……”。介词for表目

5、的用途,可接名词或动名词形式。e.g.Thewoolensweaterisusedforkeepingwarm.毛衣是用来保暖的。Explanation:car/1885/HenryFord/travelfastfridge/1862/Harrison/keepfoodfreshwashingmachine/1858/Smith/washclothesExplanation:1.annoyingadj.讨厌的,恼人的(往往指事物)e.g.Howannoyingitis!真讨厌。annoyedadj.生气的,恼怒的(往往

6、指人)e.g.Myfatherisannoyedwithme.爸爸在生我气。Explanation:2.helpfuladj.有帮助的,有益的e.g.Mr.Whiteisaveryhelpfulman.构词法：n+ful→adj再如:use+ful→usefulthank+ful→thankfulbeauty+ful→beautifulcare+ful→carefulmicrowaveovenalarmclocklightbulbDiscuss:Ithinkthemosthelpfulinventionis…I’dl

7、iketohavea…becauseIcould…It’susedfor…Ialsowanta…becauseit…Exercises:句型转换1.Shewasseentocomeoutofthelibrarybyhim.（变为主动语态）He________________outofthelibrary.2.Whenaretreesoftenplanted.（变为主动语态）When____peopleoften___________?3.TheLeaguewasfoundedinGuangzhouin1922.（就

8、画线部分提问）_______________________theLeague_______?sawhercomeplanttreedoWhenandwherewasfoundedExercises:句型转换4.Didthestudentsweartheschoolclothesalot?（变为被动语态）______thescho