九年级英语上册 Unit 4 Amazing Science Topic 1 When was it invented Section B课件 （新版）仁爱版.ppt

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1、Unit4AmazingscienceTopic1Whenwasitinvented?SectionBTeachingAimsLearnthephrases:“beinventedbysb”and“beinventedin+year”TalkaboutsomeinventionsGuessinggame!Guesstheinventions!Youcanjuststandupandsayoutyouranswer!Ifyouareright,youcanget1point.What’sthis?Itismadeofplastic.Itisverysmallandyoucanputi

2、tinyourpocket.ItwasmadeinAmericain1973first.Itisusedforcommunicating.Youcanalsouseittocallyourfriends,listentomusic,playgamesandsoon.cellphoneWhat’sthis?Itismadeofmetalandplastic.ItwasfirstmadeinAmericaaround1975.Whenwetravel,weusuallytakeitwithus.Itisusedtotakephotos.digitalcameraWhat’sthis?I

3、tisverythinandlight.ItwasfirstmadeinChinainHanDynasty（汉朝）.Itismadefromwood.Itisusedforwritingon.paperWhat’sthis?Itismadeofmetalandglass.ItwasmadebyThomasEdisonfirst.Whentheroomisdark,wecanuseittomaketheroombright.lightbulb/bᴧlb/Doyouknowmoreaboutlightbulb?I.Listento1aandchoosethecorrectanswer.

4、()1.Whichobjectisnotmentionedintheconversation?A.Lightbulb.B.AirplaneC.Television.D.Radio.()2.HowmanythingsdidThomasEdisoninventduringhislife?A.Morethan2000B.Lessthan2000C.Morethan200D.Lessthan200()3.WhereareMichaelandJane?A.Inthesciencemuseum.B.Attheschoollibrary.C.Inthezoo.D.Inthepark.CAA1cR

5、ead1aagainandcompletethetable.InventionInventorYearlightbulbGuglielmoMarconi1903radioairplaneThomasEdisonWilburandOrvilleWright18791895Readthedialogtogether!Canyougettheinformationaboutlightbulbnow?Thelightbulb_____________________bypeopleeverywheretoday.It_____invented____1879.Itwasinvented__

6、______ThomasEdison._________________________heinventedmorethantwothousandthingsduringhislife.iswidelyusedwasinbyItissaidthatII.Listentothethreepassagesof3andmatchthepictureswiththeinformation.InventionInventorYearA.KarlBenza.1926B.JohnBairdb.1876C.AlexanderGrahamBellc.1885Makesentenceslikethes

7、e:ThephonewasinventedbyAlexanderGrahamBell.Itwasinventedin1876.beinventedby+sb被某人所发明beinventedin+year在某年被发明某物品是在过去某个时间被发明的，所以通常会用：was/wereinventedSummaryDoyouknowanythingaboutjeans?JeansInventionshavechangedourlivesalot.Let’sgotoseeanot