Unit5 Lesson26 課件 冀教版九年級全冊英語

Lesson26

KeeptheCandleBurning!Unit5holdern.支托物；持有者shallowadj.淺的deep深的lighter/`lait?/打火機，點火器light(lit,lighted/lit,lighted)點燃，使燃燒match

amatch/m?t?/matchesexaminev.檢查oxygenn.氧氣Newwords:holdern.支托物；持有者shallowadj.淺的lightern.打火機；點火器matchn.火柴v.相稱；相配examinev.檢查oxygenn.氧氣Scienceissointeresting!I’msureyou’lllikethisexperiment!acandleWhatdoweneedtodotheexperiment?abigglassjarashallowdishacandleholderalighterormatchesHowtodotheexperiment?Howtodotheexperiment?1)thecandlethecandleholder.2)thecandleholderthedish.3)thedishwater.4)thecandle.PutinPutonFillhalffullwithLight5)thecandlefortwoorthreeminutes.6)Carefullythejarthecandleuntilthetopofthejarrests(剩余）onthedish.

7)thewaterinthejar.LetburnputoverExamine1、Putthecandleinthecandleholder.2.Putthecandleholderonthedish.3.Fillthedishhalffullwithwater.4..Lightthecandle.5.Letthecandleburnfortwoorthreeminutes.6.Carefullyputthejaroverthecandleuntilthetopofthejarrestsonthedish.7.Examinethewaterinthejar.1.Whatishappening?

2.Why?Thecandleusesupalltheoxygeninthejar.Thewaterinsidethejarrises.Thinkaboutit3.Howfardoesthewaterrise?Becauseaboutonefifthoftheairismadeupofoxygen,thewaterrisesandfillsaboutonefifthofthejar.Languagepoints

1.Aboutonefifthoftheairismadeupofoxygen.bemadeupof由...組成e.g.Theteamismadeupoffourgirls.2.Ithasusedupalltheoxygenintheair.useup用光e.g:Ihaveusedupthewaterinthebottle.拓展：eatupdrinkup121314343.Howfardidthewaterrise?分子基，分母序，分子>1,分母加SthreefourthsthreequartersonefourthaquarteronethirdahalfAboutonefifthofthejar.Dosomeexercises三分之二五分之三two-thirdsthree-fifths四分之一one-quarter九分之四four-ninthse.g.Twothirdsofthefoodeatenup.OnefifthofthestudentsinterestedinEnglish.isare

Let`sdotheexperiment!Task:Let’sspeakEnglishWorkingroups,describethestepsandtheconclusionoftheexperimentinEnglish.Circlethecorrectwordstocompletethesentences.1.Don`t(useup/pushup)alloftheink(墨水）.Leavesomeforme.2.Themedicalteam(ismadeof/ismadeupof)fiveexperienceddoctors.3.Pleasefillthehole(with/in)sandandwater.4.Mybrotherwasn`t(strongenough/enoughstrong)toliftthebox.Summary:Newwords:Newphrases:Grammar:分數(shù)表達法：

match\matches\lighter\candle\candleholder\burn\shallow\oxygen\examineKeep…burning\use