年级：九 科目：英语 主备人：张雄儒 备课组：刘丽娜 姚晓霞 使用时间：2014 年 月 日 目标导学案（教师版） 教研组长（签字） Lesson25:LetsDoanExperimentTeachingContent:Masterywordsandexpressions:science,experiment,fill,proveOralwordsandexpressions:theory,jar,upside,observe,right,sideup,upsidedownTeachingAims:1.UsetheSimplePresentTense.2.ExpresscertaintyanduncertaintyTeachingImportantPoints:1.Learntoexpresssequence;2.Howtoexpressanexperiment.TeachingDifficultPoints:ExpresscertaintyanduncertaintyTeachingPreparation:jar,cardboard,waterTeachingAids:audiotape,flashcards,jar,cardboard,waterTypeoflesson:newlessonTeachingProcedure:Step1.Teacherbringsthejar,cardboardandwatertotheclass.Showthemtothestudentsandaskwhatexperimentswecandowiththem.Letthestudentsshowthemandexplainthereasonstothestudents.Letthestudentsworkingroupsanddiscusstheexperiments.Whenonegroupisdoingtheexperiments,theotherscanaskthequestions.Theteachercanaskquestions,too.Step2.Nowletthestudentsopentheirbooksandguesswhattheexperimentis.AskthestudentstosayitinEnglish.Step3.Readthetextsilentlyandanswersthefollowingquestions.1.Whatsatheory?2.Whatsanexperimentfor?3.DidDannyreadabouttheexperiment?Whatisitabout?4.Doyouthinkthecardboardcanholdthewaterinthejar?Why?Step4.Readthetextcarefullyandchecktheanswers.Explainsomewordsandexpressionstotheclass.Step5.Listentothetapeandrepeatafteritlinebyline.Canthestudentslisteninggoodenoughtohearclearly?Step6.Cometo“LetsDoIt.”Dividetheclassintotwogroups.Onegroupthinksthefloorwillgetwet.Theothersthinkitwont.Letthemdiscussinclass.Payattentiontotellingthereasons.Step7.Homework1.Reviewthenextlesson.2.Finishofftheactivitybook.Summary:Theexperimentisthemainpartofthetext.Ifwehavetime,doitintheclass.Thenaskthemtodescribewhattheysee.Giveareporttotheclass.Ifthetimeinclassisntenough,letthestudentsdotheexperimentafterclass.Thenreporttheresulttotheclass.Theteachercandotheexperimentforthestudents,too.探究：1. be filled with 和be full of 的区别。2. cover sth. With sth.=put sth.over sth.被动式为：sth be covered withBlackboard DesignNew words Some important sentences:二次备课_课后反思：_Lesson 26.Keep the Candle Burning【Teaching aims】1. 掌握本课的单词和短语。2. 了解动副短语use up的用法。3. 熟练运用math【Teaching important points】分数的表达法【Teaching difficult points】Let Ss understand some important sentences1. when the candle stops buring,it has uesed up all the oxygen in the air.2. Because about one fifth of thr air is made up of oxygen, the water rise and fills about one fifth of the jar.Teaching Procedures:Step1.OrganizationReview the last lessons important points.Step2.listeningListen to the tape and answer the following questions.1. Why did the candle stop buring?(Because there was no oxygen in the jar.)2. How far did the water rise?(It rose about on fifth of the jar.)Step3.ReadingRead the text and check the answers.【合作探究】探究一 when the candle stops buring,it has uesed up all the oxygen in the air.(1)本句话的意思是_(2)use(sth)up 用光，用完，为v.+adv.结构，当宾语是介词时，位于动词和副词之间，当宾语是名词时，位于副词前后均可。其同义词短语是 run out of【举例】My brother used up the hot water just now.【运用】你认为他会把钱花光吗？(根据所给的汉语完成句子) Do you think that he will _ _all the money?探究二 Because about one fifth of thr air is made up of oxygen, the water rise and fills about one fifth of the jar.(1)本句话的意思是_(2) one fifth 为分数的表达法，意思是五分之一，分数的表达法为：分子用基数词，分母用序数词，当分子大于1时，分母需用复数。记忆口诀为：分子基，分母序，分子1，分母加s【举例】He spent three fifths of the money buying books.【运用】四分之三的信息是真的吗？ (根据所给的汉语完成句子) _ _ of the information is true.【达标测评】一 根据汉语意思完成英语句子。1. 让蜡烛保持燃烧。_the candle _!2. 科学如此有趣。Science is _二、英汉互译1.two or three minutes_ 2.one fifth_3.在盘子上_ 4.用完_ 由组成 _Step7.Homework1.Reviewthenextlesson. 2.Finishofftheactivitybook.Blackboard DesignNew wordsSome important sentences: when the candle stops buring,it has uesed up all the oxygen in the air. Because about one fifth of thr air is made up of oxygen, t