《lesson26keepthecandleburning课件》初中英语冀教2011课标版九年级全一册课件

Lesson26KeeptheCandleBurning 甘肃省通渭县陇川初级中学 王雪梅 英语九年级上冀教版 Learningaims 1 Learnthenewwords match light burn useup shallow candleholder oxygen one fifth 2 Learntheimportantsentences Lightthecandle Asthecandleburns itusesupoxygenintheair Thereisaboutonefifthoxygenintheair sothewaterrisesandfillsaboutonefifthofthejar Talkabout 1 Doyoulikedoingexperiment whyorwhynot 2 Whydoyouthinkscienceisimportant 3 Whatthingswouldn tbepossiblewithoutscience acandle Whatdoweneedto dotheexperiment acandleholder lighter light lit lighted lit lighted 点燃 使燃烧burn burned burnt burned burnt 燃烧 amatch matches abigglassjar ashallowdishwithwater Howtodotheexperiment 1 Putthecandleinthecandleholder 2 Putthecandleholderonthedish 3 Fillthedishhalffullofwater 4 Lightthecandle 5 Letthecandleburnfortwoorthreeminutes 6 Carefullyputthejaroverthecandleuntilthetopofthejarrestsonthedish 7 Lookatthewaterinthejar Thinkaboutit Whatmakesthecandleburn Oxygen氧气make letsth sb do使某物 某人做 eg Letthecandleburnfortwoorthreeminutes Imakethestudentgoout Whydidthecandlestopburning useupeatupdrinkupeg Ihaveusedupthewaterinthebottle Hehaseatenupthebread Shehasdrunkupthewater onefifth Howfardidthewaterrise 分子基 分母序 分子 1 分母加S threefourths fivesixths onethird a one halfonesecond Let sdosomemathexercises twothirds threefourths twofifths thirteenfifteenths candle candleholder dish fill half light burn uses burning up Homework Doanexperiment Cananegg swim inthewater First putsomesaltintotheglass Then addsomewater N