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Crafts第二课时WarmingDoyouknowwhoinventedthesaw?LuBan.PresentationWhat’sthis?It’sasaw.PresentationWhatarethey?Theyarecraftsmen.PresentationWhat’rethey?Theyaretools.PresentationAlongtimeago,therewasacraftsman.HisnamewasLuBan.PresentationOneday,aleafcuthisfinger.Hethought,“Howcouldsuchasmallleafhurtmyfinger?”PresentationHelookedattheleafcarefully.Thereweremanyteethontheleafandtheteethweresharp.PresentationSoonLuBanmadeasaw.Itwasthefirstsawintheworld.Peoplearestillusingthistooltoday.DiscussionCompletethesummaryofthisstory.LuBan______acraftsman.Oneday,aleaf_____hisfinger.Hesaw_____________ontheleaf.LuBanthenmade___________.wascutmanyteethasawWorkinpairsWhomadethefirstsawintheworld?LuBan.Accordingthepassage,askandanswerinpairs.WorkinpairsHowdidhefindthesaw?Oneday….….Practiceingroups.Doyouknowthem?Talkaboutthemingroups.Summary本课重点句型：Oneday,aleafcuthisfinger.Thereweremanyteethontheleafandtheteethweresharp.SoonLuBanmadeasaw.Itwasthefirstsawintheworld.Homework.Makeandsay.