lesson25教案.doc

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, the water rise and fills about one fifth of the jar.二次备课_课后反思：_Lesson27.Planet Danny【Teaching aims】1.掌握本课的单词和短语。2.熟练掌握be worthing doing的用法。【Teaching important points】 Unless 与even if 的用法【Teaching difficult points】Let Ss understand some important sentences1. I dont think you can find one unless you have a bigger telescope.2. Well, its worth a try,even if I dont find a planet.Teaching Procedures:Step1.OrganizationReview the last lessons important points.Step2.listeningListen to the tape and answer the following questions.1. why cant Danny use the telescope well? (Because he looks throught the wrong end.)2. Why cant he still find the star？ (Because it is in the day)Step3.ReadingRead the text and check the answers.【合作探究】探究一 I dont think you can find one unless you have a bigger telescope.(1)本句话的意思是_(2)unless 作连词，意思是“除非”，相当于ifnot,在句中引导条件状语从句。它被用来表示只有在某个特定的情形下，某事才可能发生或者是正确的。【举例】You will miss the train unless you hurry up.【运用】你认为他会把钱花光吗？(根据所给的汉语完成句子) We cant be successful_(除非)we keep working hard.探究二 Well, its worth a try,even if I dont find a planet.(1)本句话的意思是_(2) worth 为adj.意思是“值得”，常用于be worth+n.或者be worth+v.ing结构中。【举例】The clock is worth ten dollars.【运用】根据所给的汉语完成句子.郎平喜欢排球，她认为值得为此奉献一生。Lang Ping loves volleyball so much that she thinks it _.(3) even if 即使，纵然 引导让步状语从句，从句多表示假设性。【举例】Even if he had the money,he wouldnt buy it.【达标测评】一、英汉互译。1. solar system_ 2.look through_3.at night _4.纵然，即使_5.属于_二、用括号内所给单词的适当形式填空。1.Sometimes he tells us some_(fun)stories.2.A good teacher is like a _(shine) star to students.3.The animals are _(amaze)because some are so cute and some are so ugly.4.The stamp is not worth _(collect).Step7.Homework1.Reviewthenextlesson. 2.Finishofftheactivitybook.Blackboard DesignNew wordsSome important sentences:1. I dont think you can find one unless you have a bigger telescope.2. Well, its worth a try,even if I dont find a planet.二次备课_课后反思：_Lesson 28.The Study of Living Things【Teaching aims】1.掌握本课的单词和短语。2.熟练掌握数量的表达。【Teaching important points】asas 的用法。【Teaching difficult points】Let Ss understand some important sentences1. In Mexico,the butterflies always return to the same small piece of forest, which is only 20 lilometres wide.2. Here, as many as 230 million butterflies spend the winter.Step1.OrganizationReview the last lessons important points.Step2.listeningListen to the tape and answer the following questions. 1.This kind of butterfly travels south every year.( T )2.They begin to fly north in the fall.( F)3.The US has encouraged farmers to use fewer chemicals.( T )Step3.ReadingRead the text and check the answers.【合作探究】探究一 In Mexico,the butterflies always return to the same small piece of forest, which is only 20 lilometres wide.(1)本句话的意思是_(2) 20 lilometres wide.20公里宽。数量的表达方法：表示长、宽、高等用“基数词+单位词”(metre,foot, inch,kilogram等)+adj.(long, wide, high等)，或者用“基数词+单位词+in+名词(length,width, height,weight等).【举例】The city is 12 metres wide and 12 metres high.【运用】根据所给的汉语完成句子这条河很长，且大约20米宽。The river is very long and it is about _(20metres wide)探究二 Here, as many as 230 million butterflies spend the winter.(1)本句话的意思是_(2)as many as 意思是多达.,和一样多。as.as中间加adj./adv.的原级。【举例】There are as many as ten thousand birds in the forest.【运用】根据所给的汉语完成句子Liu Ying is good at singing ,she sings _the famous singer, CoCo.(和.一样好)【达标测评】一、英汉互译。1.in fall _ 2.draw ones attention_3.cut down_ 4.as many as _5.lay eggs _ 6.leave for _二、用括号内所给单词的适当形式填空。1.Mr.Smith has been _(live) in London since 1978.2.The car is _(complete)out of hand because the engine has broken down.3.We would like to draw _(you)attention to this matter.Step7.Homework1.Reviewthenextlesson. 2.Finishofftheactivitybook.Blackboard DesignNew wordsSome important sentences:1. In Mexico,the butterflies always return to the same small piece of forest, which is only 20 lilometres wide.2. Here, as many as 230 million butterflies spend the winter.二次备课_课后反思：_Lesson 29.DNA-The Story of You【Teaching aims】1.掌握本课的单词和短语。2.熟练the same as 的用法。【Teaching important points】Except for, except, besides的用法辨析。【Teaching difficult points】Let Ss understand some important sentences1. In Mexico,the butterflies always return to the same small piece of forest, which is only 20 lilometres wide.2. Here, as many as 230 million butterflies spend the winter.Step1.OrganizationReview the last lessons important points.Step2.listeningListen to the tape and answer the following questions. 1.This kind of butterfly travels south every year.( T )2.They begin to fly north in the fall.( F)3.The US has encouraged farmers to use fewer chemicals.( T )Step3.ReadingRead the text and check the answers.【合作探究】探究一 In Mexico,the butterflies always return to the same small piece of forest, which is only 20 lilometres wide.(1)本句话的意思是_(2) 20 lilometres wide.20公里宽。数量的表达方法：表示长、宽、高等用“基数词+单位词”(metre,foot, inch,kilogram等)+adj.(long, wide, high等)，或者用“基数词+单位词+in+名词(length,width, height,weight等).【举例】The city is 12 metres wide and 12