Unit6 SectionA(1a-2d)课件-人教版九年级英语全册

Unit6Whenwasitinvented?SectionA(1a-2d)

FourgreatinventionsinChinapaper-makingprintinggunpowdercompassChineseinventedthefourgreatinventions.Thefourgreatinventions________________Chinese.wereinventedbypaper-makingCaiLuneasternHanprintingBiShengSonggunpowderChineseTangcompassChineseWarringStatesPeriodWhenwas...invented?Whowas...inventedby?Whatis...usedfor...?Itwasinventedin....Itwasinventedby....Itisusedfor....Whataretheseinventions?Whowasthe...inventedby?GuessingGameKarlBenzBellJ.L.BairdJohnAtanasoff

telephonecar

television

computerItwasinventedby....Whenweretheyinvented?Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4].1aA:Ithinkthe...wasinventedbefore/afterthe....B:Well,Iagreewith....Besides,Ithinkthe...wasinventedbefore/afterthe....C:Well,Idon'tthinkso.Ithink...wasinventedbefore/afterthe....Listenandmatchtheinventionswiththeyears.______1876______1885______1927______1971dacb1a1b1ba.needtotakeahistoryclassb.Myfamilyhadacar.c.havemoderninventionsd.wereinventede.couldn’taffordone.Alice:Wasyourlifeverydifficultwhenyouwereakid?Grandma:Oh,notreally.Why?Alice:Well,youdidn’t___________likeatelephone,right?Grandma:Ofcoursewedid!HowolddoyouthinkIam?Thetelephonewasinventedin1876.You_________,Alice!Alice:Ha,ha!Howaboutcars?Theyweren’tinventedyet,werethey?Grandma:Yes,theywere.Carswereinventedin1885.__________.Alice:Well,didyouhaveaTV?Grandma:No,we_________.Theywereexpensiveinthosedays.TheTVwasinventedaround1927,Ithink.Alice:Well,Iknowthatyoudidn’thaveacomputerbecausewelearnedinschoolthatpersonalcomputers_________in1971.Grandma:You’reright.ButIhaveonenow!cabedPairworkA:Whenwasthe…invented?B:Itwasinventedin…A:Whowasitinventedby?B:Itwasinventedby…?A:Doyouknowwhatitisusedfor?B:Itisusedfor...KarlBenz

in1885

in1971JohnAtanasoffin1876BellJ.L.Bairdin1927in1839LuiswashinghairskatingrunningmagicinventionsWhataretheyusedfor?shoeswithlightsshoeswithspecialheelsraisingorlowering

movingupanddownice-creamscoopservingsomethingcoldseeinginthedarkmagicinventionsWhataretheyusedfor?Listenandnumbertheinventions[1-3]intheorderyouhearthem.1321b2aInventionWhatisit/aretheyusedfor?shoeswithspecialheels________thestyleoftheshoesshoeswithlightsseeing___________hotice-creamscoop________reallycoldice-creamListenagainandcompletethechart.changingservinginthedarkn.样式;款式2bThefirstinventionisshoeswith________.Peoplealwayshittheirtoesagainst__________onthewaytothebathroomatnight.Sopeoplecanusethemfor________inthe______.Listenagainandfillintheblanks.somethingseeingdarklightsThesecondinventionisaspecialice-cream______.Itrunson_________andbecomeshot.It’s_____forservingreally_____ice-cream.Thelastinventionisshoeswithspecial_____.Peoplecanmovetheheels_____and______.Youcan_____theheelsifyouaregoingtoapartyor______themifyouarejustgoingoutforshopping.scoopelectricityusedcoldheelsupdownraiselowerHaveyoueverthoughtofinventinganythingbyyourselftomakeyourlifeeasier?CreativedesignerWhatdoyouthinkisveryinterestingtoinvent?Whydoyouwanttoinventit?Canyoudrawitandtelluswhatitlookslike?Whatcanitbeusedfor？Report:Iwanttoinventthiskindofmachine.BecauseIamlazy.Idon'twanttogetupearlyeverymorning.Ifthealarmo'clockgoesoff,wecanbewokenupbyitsmechanical(机械的）arm.Soitcanbeusedforwakingmeup.Therearenoproblems---onlyopportunitiestobecreative.Smallinventionscanreallychangetheworld!Whatsmallinventionscanyouthinkof?2dRead2dandanswerth