L30 Keep the Candle Burning.PPT.

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1、Today’sInspiringEnglish◆Icandoit!Youcandoit!Wecandoit!◆Don’tbeshy–Justtry!!KeeptheCandleBurning!By:GuanWeihaiLesson301.Whatdoweneedtodotheexperiment?acandleacandleholderabigglassjarashallowdishwithwateramatchmatches2.Howdowedotheexperiment?Putthecandleinthecandleholder.Putthecandleholderinthedi

2、sh.Fillthedishhalffullofwater.Lightthecandle.Nowthecandleisburning.Letthecandleburnfortwoorthreeminutes.Carefullyputthejaroverthecandleuntilthetopofthejarrestsonthedish.Carefullyputthejaroverthecandleuntilthetopofthejarrestsonthedish.Thewaterrisesandfillsaboutone-fifthofthejar.Retellingthesteps

3、oftheexperiment1)Putthecandleinthecandleholder.2)Putthecandleholderinthedish.3)Fillthedishhalffullofwater.4)Lightthecandle.5)Letthecandleburnfortwoorthreeminutes.6)Carefullyputthejaroverthecandleuntilthetopofthejarrestsonthedish.3.Whatishappening?1).Whydidtheairrise?Whenthecandlestopsburning,it

4、hasusedupalltheoxygenintheair.thewaterinsidethejarthenrises.2).Howfardidthewaterrise?About______(五分之一)片段.shsFillintheblanks.Let'sdoanexperiment.Firstfinda_______andthenputitinthe________,andthenputtheminthe_______._____thedish_____fullofwater.Afterthat,wecan________thecandle.Letthecandle_______

5、_fortwoorthreeminutes.Atlastputthejar______thecandle.Whatcanwesee?Asthecandleburns,it______upoxygenintheair.Whenthecandlestops________,ithasusedupalltheoxygen.Thewaterinsidethejarrisesabout________.candlecandleholderdishFillhalflightburnoverusesburningone-fifthToday’sJournalTopicIfIwanttobeasci

6、entist,whatshouldIdonow?﹢behardworking﹢nevergiveup﹢keeptrying﹢haveahabitoflifelonglearning﹢......SummaryandHomework1.Readthetextaloudandrecitethepartof“Whatishappening?”2.Dotheexperimentafterclassbyyourselves.3.PreviewLesson31.BlackboardDesign1.Whatdoweneedtodotheexperiment?2.Howdowedotheexperi

7、ment?3.Whatishappening?ClassisoverThankyou!