人教新目标九年级英语课件unit9.ppt

《人教新目标九年级英语课件unit9.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit5ItmustbelongtoCarla.SectionA嘉祥疃里三中张卫霞Unit9Whenwasitinvented?SectionASectionA嘉祥疃里三中张卫霞Unit9Whenwasitinvented?嘉祥疃里三中张卫霞嘉祥疃里三中张卫霞SectionAWhatisinvention?Aninventionisanewthingthatsomeonehasmade.Edisonwasagreatinventor,heinventedmorethan1,000inventionsinhislife.Let’sdiscussWhatwou

2、lditbeifthereweren’telectricityintheworld?Chineseinventions19761971187619271885Whenwasitinvented?Listenandmatchtheinventionswiththedates.abceWhenwasthetelephoneinvented?Ithinkitwasinventedin1876.18761885192719711976Whenwasthecarinvented?Itwasinventedin1885.英语中的动词有两种语态：主动语态(TheActiv

3、eVoice)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)Thepassivevoice.被动语态被动语态的构成:be动词+(及物动词的)过去分词一般现在时一般过去时am(is,are)+donewas(were)+done{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.Herstudentsarelove

4、dbyourteacher.被动语态(ThePassiveVoice)动词填空：TheTV__________(invent)around1927.Thiskite_________(make)byUncleWang.Tea___________(discover)alongtimeago.Ourclassroom_________________(shouldclean)everyday.wasinventedwasmadewasdiscoveredshouldbecleanedGuessing:Whatisit?Guessing:Whatisit?Mic

5、rowaveovenItisusedforcookingandheatingfood(加热)Whatfoodcanbeheatedinit?Whatisitusedfor?Itisusedforcounting.calculatorWhataretheyusedfor?Theyareusedforgivinglight.lightbulbsWhatis/are…usedfor?It’s/They’re…usedfor…part2alarmclockIt’sanannoyinginvention.BecauseitwakesmeupwhenI’msleepin

6、g.Ithinkcomputeristhemosthelpfulinvention.BecauseithelpsmesearchtheinformationthatIneed.part3Asurvey:Whatdoyouthinkisthemosthelpful/annoyinginventions?NameHelpfulinventionsWhyAnnoyinginventionswhyUsefulexpressions:A:Whatdoyouthinkisthemosthelpful/annoyinginvention?B:Ithinkthemosthe

7、lpfulinventionis…A:Whyisthat?B:Well,itgives/helpspeople…Ithinkthemosthelpfulinventionis…I’dliketohavea…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

8、）When____peopleoften______