冀教版英语八下《unit 4 look into science》word教案4

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1、英语八年级下翼教版Unit4LookintoScience教案4Lesson30KeepthecandleBurning!Teacher:YuZhaoxinTextbook:English(StudentBook4)[Content:Unit4Lesson30KeepTheCandleBurningStudents:JuniortwostudentsDate:2008-04-08Learningaims:1.Learnthenewwords:match,light,burn,useup,shallow,candleholder,oxygen,one-fifth2.Lear

2、ntheimportantsentences①Lightthecandle.②Asthecandleburns,itusesupoxygenintheair③Thereisaboutone-fifthoxygenintheair,sothewaterrisesandfillsaboutone-fifthofthejar.Learningimportantanddifficultpoints:分数的表达法：口诀：分子基，分母序，分子>1，分母加s[e.g.one-fifth;two-thirdsLearningmethod:Listen,say,readandwrite.L

3、earningsteps:Setp1.Classopening1.Revision:Whichexperimentdidyoulearninthisunit?2.PresentationStep2.ReadingReadthenewwordsandwriteStep3.ExperimentWatchtheexperiment.Sumupstepsofexperiment]Step4.Listening[Listentothetapeandfindouttheusefulexpressionsandthedifficultpoints,andthinkabout“whatw

4、illhappen?Step5.Explainandwriting1.light①作动词：意思是点燃②作名词：意思是光，光线，灯；e.g.Thelightistoopoortoread.Therearetwolightsinourclassroom.③做形容词：意思是轻的，不重的；e.g.Thiscoatislightbutverywarm2.useup意思是耗尽，耗费；e.g.Wehaveuseduptheink.3.分数的表达法：口诀：分子基，分母序，分子>1，分母加se.g.one-fifth;two-thirdsStep6.DoexercisesLet`sdoan

5、experiment.Fistfinda_______andthenputitinthe________.Wheredoweputthecandleholder?Outitinthe_______._________thedish________fullofwater.Afterthat,wecan________thecandle.Letthecandle________fortwoorthreeminutes.Atlastputthejar________thecandle.Whatcanwesee?Asthecandleburns,it________upoxyge

6、nintheair.Whenthecandlestop________,ithasusedupalltheoxygen.Thewaterinsidethejargoes________.Step7.Sumup1.Masterthewordsandexpressions.2.Mastertheexperiment.Step8.Homework1.Understandthemeaningofthetextanddoitinsamllgroups.2.Rememberthemasterywords.3.Finishtheactivitybookinlesson30.4.Then

7、extreading.