Unit6SectionA(Grammarfocus4c)课件人教版九年级英语全册

Unit6Whenwasitinvented

(SectionAGrammarFocus)主讲人：XXX

invention“发明”OldinventionspapermakingtechnologyprintinggunpowdercompassThefourgreatinventionsofancientChinaNewinventionsThenewfourgreatinventionsofChinaonlineshoppinghigh-speedrailwayssharedbikesmobilepaymentAsmallinventionpotatochipsWhatdoyouknowaboutpotatochips?Potato

chips

areloved

bymanypeople.It’ssaid

thatpotatochipsaremorethan150yearsold.Eventodaypotatochipsarestillenjoyedbymostpeople.Theywereinventedbyaccidentin1853.TheinventorwascalledGeorgeCrum.Thehistoryofpotatochips梦の家ThehistoryofpotatochipsPotato

chips

areloved

bymanypeople.It’ssaid

thatpotatochipsaremorethan150yearsold.Eventodaypotatochipsare

stillenjoyed

bymostpeople.Theywereinvented

byaccidentin1853.Theinventorwascalled

GeorgeCrum.梦の家Oneday,hewasaskedtoservefriedpotatoesbyacustomer.Whenthepotatoescame,thecustomerthoughttheywerecuttoothick.Thepotatoeswerecookedforalongtimeuntiltheywerecrispy.Potatochipswereconsideredtobethemostpopularsnacks.Thehistoryofpotatochipsadj.酥脆的Oneday,hewasasked

toservefriedpotatoesbyacustomer.Whenthepotatoescame,thecustomerthoughtthey

werecuttoothick.Thepotatoeswerecookedforalongtimeuntiltheywerecrispy.Potatochipswereconsideredtobethemostpopularsnacks.Summary：主语+was/were+动词的过去分词（+by…）Thehistoryofpotatochipsadj.酥脆的Passivevoiceinthesimplepasttense一般过去时中的被动语态Sructure：谓语构成was/weredone1.Thetelephone(invent)in1876.2.Yesterdaytherooms(clean)byTom.wasinventedwerecleanedeatlocklikeringinvitebreaktellbringYou_____________tothepartylastnight,weren’tyou?Whydidn’tyougo?2.Theearthquakehappenedallofasudden,butluckilythevillagers_____________toasafeplace.3.Thedoor___________whenwearrived,sowe______thebell.4.Thestudents________nottoeatordrinkinclass.ButRuby_______therulewhenshestartedeatingabiscuitinscienceclass.5.Thecookies_________bythehungrykidsinlessthan20minutes,andtheyreally_____them.wereinvitedwerebroughtwaslockedrangweretoldbrokewereeatenliked4aCompletethesentenceswiththecorrectformsoftheverbsinthebox.突然；意想不到地Howtochangeactivevoiceintopassivevoive.如何将主动语态改成被动语态ActivevoiceTomcleanedtheroomsyesterdayPassivevoiceTheroomswascleanedbyTomyesterday4aRewritethesentencesusingthepassivevoice.1.Theysoldthefridgeatalowprice.2.Somebodystolemycamerafrommyhotelroom.3.Wheredidyoutakethesephotos?4.Ourparentsadvisedusnottogooutalone.5.Differentwriterstranslatedthebookintodifferentlanguages.Thefridgewassoldatalowprice.Wherewerethesephotostaken?Mycamerawasstolenfrommyhotelroom.Wewereadvisednottogooutalonebyourparents.Thebookwastranslatedintodifferentlanguagesbydifferentwriters.atalowprice:以低价4cDecidewhetheractiveorpassiveformsshouldbeusedinthesesentences.Writethecorrectformsintheblanks.Thetelephone_____________(invent)byAlexanderGrahamBell.He__________(born)in1847.Mr.Bell________(work)ontheinventionofthetelephonewithThomasWatson.In1875,Mr.Bell_______(learn)howtosendmusicalnotesthroughaninstrumentsimilartoatelephone.Finally,thetelephone____________(invent)in1876.Thefirstsentencethat________(say)onthetelephonebyMr.Bellwas“Mr.Watson,comehere;Iwanttoseeyou.”Todaythetelephone________(use)aroundtheworld.isusedwassaidworkedlearnedwasinventedwasinventedwasbornCreatourowninventionsHello,everyone!Letmetellyousomethingaboutourinvention.......(moreinformation)Student1:Drawapictureoftheinvention.Introducethenameoftheinvention.Student2,3,4:Writedownasmanysentencesaspossiblebyusingpassivevoice.Hello,everyone!Letmetellyousomethingaboutmyinvention.

Itwascalledmemorybread.

ItwasinventedbyMaggie.

Itisusedtohelppeoplememorizinganythingtheywant.

ItcanhelpalotwhenyouareaskedtomemorizesomeEnglishwords.

Whenyouuseit,youaresupposedtocoverthewordswiththebread,andeatit.

Thenthewordscanberememberedveryeasily.Doyoulikemyinvention?memorybreadWhatinventionisyourfavorite?Why？why？who？Inventionscanmakeourlife.

（teacher/students/seniorcitizen...