浙江省泰顺县罗阳二中九年级英语《Unit 9 when was it inented？》课件 人教新目标版.ppt

whenwasitinvented unit9 isayinvent yousayinvented invent invent invent invent invented invented isayuse yousayused use use use use used used isaybuy yousaybought buy buy buy buy bought bought make make make made made made do do do do did done throw throw throw throw threw thrown 过去分词 看谁反应快 主动语态 被动语态 inventedusedformadeofcookedtastegivesaywillbuywilldiscover was wereinvented was wereusedfor was weremadeof was werecooked is aretasted is aregiven is aresaid willbebought willbediscovered be 动词的过去分词 a whenwasthe invented b ithinkitwasinventedin 1976 1876 1971 1927 1885 pairwork a what sthis b it sa a whenwasitinvented b itwasinventedin a whowasitinventedby b itwasinventedby a whatisitusedfor b itisusedfor whichdoyouthinkisthemostuseful why talkabouttheusefulinvention diacussandreport report ithinkthemostusefulinventionis because finishthesentenceswiththepassivevoice 1 thomasedisoninventedthelightbulb thelightbulb bythomasedison 2 peoplewritemostinternationalbusinesslettersinenglish mostinternationalbusinessletters inenglish 3 weshouldcleanthefridgeonceamonth thefridge onceamonth 4 iboughttwonewmobilephonesformyparentslastweek twonewmobilephones formyparentslastweek wasinvented werebought arewritten shouldbecleaned thebikeisoneofthesimplestyetmostusefulinventionsintheworld whatismostsurprisingisthatitwasnotinventedearlier althoughthegreatinventorleonardohaddrawnpicturesforbikesandalsoforflyingmachinesandsomeotherthings thosethingswerenotproduceduntillongafterhedied apersonridingabikeusesmuchenergytomakethebikemove andthereisnopollutionatallwhenyouareriding evenso indevelopedcountries mostpeopledon tgotoworkbybike itisnotbecausethebikesareexpensiveorpeoplefeeltirediftheyridetowork itisbecausethenumberofcarsontheroadsbecomeslarger itcertainlybecomesmoredangeroustorideabike asaresult morepeopleputtheirbikesawayandgotoworkbycars andinthisway thesituationismademoreserious perhapsthebestwaytomakeridingsaferandmorepopularistocreatepathsonlyforbikes andtomakeitsodifficultandexpensivefordriverstomaketheircarsintocitythattheywillgobacktousetheirbikes 1 whenwasthebikeinvented a veryearlyb beforeleonardodrawnpictureofbikesc afterleonardodiedd untilleonardodied 2 wasusedtomovethebike a gasb coalc energyd nothing 3 indevelopedcountries peopledon tgotoworkbybikebecause a thebikeisexpensiveb it stootiredtorideabikec therearetoomanycarsonthewayd theyarerich 4 a bikesaresimpleanduseful b bikesinventedbeforetheirshapesaredrawn c bikesproducenopollutiond bikearen toftenridetoworkindecelopedcounties thebikeisoneofthesimplestyetmostusefulinventionsintheworld whatismostsurprisingisthatitwasnotinventedearlier althoughthegreatinventorleonardohaddrawnpicturesforbikesandalsoforflyingmachinesandsomeotherthings thosethingswerenotproduceduntillongafterhedied apersonridingabikeusesmuchenergytomakethebikemove andthereisnopollutionatallwhenyouareriding evenso indevelopedcountries mostpeopledon tgotoworkbybike itisnotbecausethebikesareexpensiveorpeoplefeeltirediftheyridetowork itisbecausethenumberofcarsontheroadsbecomeslarger itcertainlybecomesmoredangeroustorideabike asaresult morepeopleputtheirbikesawayandgotoworkbycars andinthisway thesituationismademoreserious perhapsthebestwaytomakeridingsaferandmorepopularistocreatepathsonlyforbikes andtomakeitsodifficultandexpensivefordriverstomaketheircarsintocitythattheywillgobacktousetheirbikes 5 iftheywantpeopletoridebikestowork theyshould a makethedriverspaymoreb createpathsonlyforbikesc makeitmoresafeforridingd alltheabove whycouldtheybecomegreatinventors theywereclevererthanothers theyhadmoney theyhadgoodimagination 想象力 theyweredetermined 坚定 todosomethingwell theywerenotafraidfailure theyweregoodatlearningfromfailure theylikedtosolvingproblemsinmanyways therewasan 古老的 legendaboutpotatochips in2 世纪 ago therewasachef 叫做 george oneday hewasinabadmood sohecookedthepotatochipsforalongtime 直到 theywerecrispy itgaveouta 讨人喜欢的 smell thechefsprinkledalotofsalt sothey 品尝 verysalty accordingtothislegend weknowgeorgeistheinventorofthepotatochipsandpotatochipswere 发明 bymistake fillintheblank centuries ancient called tasted invented pleasant until doyouknowthehistoryofinventingsandwich doyouknowthehistoryofinventingsandwich thehistoryofsandwichesdoyouknowthatsandwicheswereinventedbyausualman today writing doyouknowwhat clone means infact clone isnotaword hereisastoryaboutit itissaidthatascottishscientisthasclonedayoungsheepseveralyearsagoandnameditdolly thiswasthefirsttimethescientisthasmadeayoungsheepfromafully grownsheep sotheword clone meanstomakethesameanimalformafully grownone ifeveryoneknowshowtodocloning peoplewillnothavetokeepsomanysheeporcows nowtherearesomeotherpeoplewhoevenwanttocloneman ofcourse weshouldn t cloningmansoundsinterestingbutnotposible first wecan tadeadperson becausethec