冀教九年级上16Lesson 26 Keep the Candle Burning.ppt

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1、Lesson26Unit5LookintoScience5UnitLesson26KeeptheCandleBurning学习目标objectivesMasterthenewwordsandphrases:holder,shallow,lighter,match,examine,oxygen；useupLearntodotheexperimentwithcandle.Knowmoreaboutscience.holdern.支托物candleholdern.蜡烛座shallowadj.浅的lightv.点燃lightern.打火机；点火器matchn.火柴b

2、urnv.燃烧examinev.检查oxygenn.氧气useup用完WordsLeadinmatchburncandleholdern.ThinkaboutitDoyouthinkscienceisinteresting①?Whyorwhynot?NameoneortwofamousChinesescientist.Whatdoyouknowaboutthem?Scienceissointeresting!I’msureyou’lllikethisexperiment!Whatdoyouneed?AcandleAcandleholderAbigglassj

3、arAshallowdishwithwater②matchesWhile-readingWhatdoyoudo?1.Putthecandleinthecandleholder.2.Putthecandleholderinhedish.3.Fillthedishhalffullofwater.4.Lightthecandle③.5.Letthecandleburnfortwoorthreeminutes.6.Carefullyputthejaroverthecandleuntilthetopofthejarrestsonthedish④.7.Lookatthe

4、waterinthejar.Whatobservationcanyoumake?Whatishappening?Asthecandleburns⑤,itusesupoxygenintheair.Whenthecandlestopsburning,ithasusedupalltheoxygeninthejar.Thewaterinsidethejarthenrises⑥.Howfardidthewaterrise?Thereisaboutone-fifthoxygenintheair,sothewaterrisesandfillsaboutone-fiftho

5、fthejar⑦.LanguagepointsKeepthecandleburning!让蜡烛燃烧！keepsth.(sb.)doing,使某物（某人）保持做某一动作。e.g.Don’tkeepthewaterfalling.不要再让水继续流了。Shekeptmeholdingthefarwithmyhand.她让我一直用手握住瓶子。1.Doyouthinkscienceisinteresting?你认为自然有趣吗？science科学；scientist自然科学，科学家e.g.WangPenglovesscienceverymuch.Hewantstobea

6、scientist.王鹏非常喜欢科学。他想成为一名科学家。2.ashallowdishwithwater一个装水的浅盘shallowadj.浅的反义词：deep深的e.g.Pleasepassmeashallowdish(plate).请递给我一个浅盘子。Theideaofthepassageisveryshallow.Icanunderstandit.这篇短文的意思很浅显，我能读懂它。①lightv.点燃，照亮It’stimetolightup.该点灯了。It’scoldintheroom.Let’slightafire.房间里太冷了。咱们把火生起来吧。3

7、.lightthecandle点亮蜡烛=makethecandleburn使蜡烛燃烧②lightn.光，光线（不可数）；电灯（可数）Themoonlightcomesintotheroomthroughthewindow.月光透过窗子照进了房间。Don’tforgettoturnoffthelightswhenyouleave.当你离开的时候不要忘了关灯。③lightadj.颜色浅的（反义词dark）；（分量）轻的（反义词heavy）Roselikesthelightgreenskirt.罗斯喜欢那件淡绿色的裙子。Thebagisverylight.Mary

8、cancarryiteasily.那个包很轻。玛丽能