八年级英语上册 Module 3 Unit 2 We haven’t found life on other planets yet教案 外研版VIP免费

Module3JourneytospaceUnit2Wehaven’tfoundlifeonotherplanetsyet.TeachingAimsandDemands:1.Languageknowledge:Newwords:planet,solar,also,none,environment,air,grow,grown,part,galaxy,billion,universe,light,beyond,alone,entrance,cost,prefer,solarsystemKeystructures:Presentperfecttensewithjust,alreadyandyet.(重点)2.Tounderstandpassagesaboutspacetravelinvolvingpresentperfecttense.(难点)3.Attitudes:Weshouldlovescienceandourcountry.Learningstrategies:Communicativeapproach.TeachingAids:Multi-Media(Taperecorder,video,OHP,handout)TeachingProcedures:PartI:Revision1.HelpstudentstorevisewhatislearntinPeriodoneofthismodule.Showthemsomepicturesaboutthenewwordsinlastperiod.HavetheSs.spellthemchorallyandindividually.2.Revisethep.p.formsofsomeirregularverbsbewas/werebeenhavehadhadgivegavegivensellsoldsoldwritewrotewrittengowentgonegetgotgotcomecamecomeflyflewflownseesawseendodiddonetaketooktakensendsentsenteatateeatenfindfoundfoundbreakbrokebrokenPartII:PreparationTask1:Learnthenewwords.Directions:Labelthepictureswiththewords.(1).Readthroughthewordsonthescreen.HavetheSs.Repeatthemafteryou.(2).Readthewordsseparatelyandhavethemrememberthem.(3).Makesomesentenceswiththewords.(4)Callbacktheanswersfromthewholeclass.Task2:Thinkaboutthingsyouknowaboutlifeonotherplanets.Directions:(1).LettheSslookatthepictureandthetitleoftheunit.Readthesentencegiven.ElicitsomemorefromtheSs,andnotethemontheboard.Acceptanythingtheygive.(2).PairtheSstotalkaboutlifeonotherplanets.PartIII:ScanningandSkimming1.Task:Readthepassageandchoosethebesttitle.Directions:Stepone:TheteacherasktheSstoreadthetitles.Steptwo:Ssreadthepassageandchoosethebesttitleindividually.Stepthree:Callbacktheanswersfromthewholeclass,askingforreasonsfortheirchoice.2.Task:Readthepassageandputthewordsandexpressionsinorderinactivity3.Directions:Stepone:FirstmakesuretheSsunderstandwhattheyshoulddo.Ssreadthepassageanddoactivity3onpage21individuallyandcheckwithapartner.Steptwo:Callbacktheanswersfromthewholeclass,havingindividualsreadouttheanswers.3.Task:Checkthetruesentencesinactivity4.Directions:Stepone:ReadthroughthesentencesandmakesuretheSsunderstandwhattheymean.Ssdoactivity4onpage21individuallyandcheckwithapartner.Steptwo:Callbacktheanswersfromthewholeclass,havingindividualscorrectthewrongsentences.PartIV:Dealingwithexpressions:1.However,wehaven’tfoundlifeonotherplanetsyet.然而，我们在其他行星上还没有发现生命。however是副词，一般在两句之间，其后用逗号，表示转折。Wehavenotwon;however,weshalltryagain.我们还没有取胜,不过我们还要再试一下。2.TheearthisaplanetanditgoesaroundtheSun.EightotherplanetsalsogoaroundtheSun.地球是行星，它围绕着太阳转。还有8颗行星也围绕着太阳转。(1)过去一直认为太阳系有九大行星：水星（Mercury），金星(Venus)，地球(Earth)，火星(Mars)，木星(Jupiter)，天王星(Uranus)，海王星(Neptune)，冥王星(Pluto)。2006年，科学家一致认定太阳系有八大行星：水星，金星，地球，火星，木星，天王星，海王星。即去掉原来的冥王星。(2)注意：数词＋other＋名词的复数，而another＋数词＋名词的复数。例如：Ihaveeaten2apples,Iwouldlike3otherapples.我已经吃了2个苹果了，我想再吃3个。Ihaveeaten2apples,Iwouldlikeanother3apples.我已经吃了2个苹果了，我想再吃3个。文章中还有一句：Butscientisthavediscoveredmanyothergalaxiesintheuniverse.但是科学家在宇宙中已经发了很多其他的星系。3.Thestarsweseeatnightarethesunsinothersolarsystems.我们在晚上看见的星星是其他太阳系中的恒星。（1）wesee是定语，修饰Thestars。(2)sun小写作为普通名词使用，表示“恒星”。如果大写，表示我们太阳系中的太阳。例如：TheSunisshining.4.Withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?宇宙中有这么多的恒星，我们是孤独的吗？太空中还有其他生命吗？Withsomanystarsintheuniverse是介词短语，在句子中作状语，表示伴随情况。例如：Theboyranin,withaballinhishand.小男孩手里拿着球，跑了进来。PartV:Languageuse1.Activity5onpage21intheWB.Direction:Ssdoitbythemselves.Let’sseewhocanfinishitassoonaspossible.Thendiscussinpairsandfinallysharetheiranswerswiththeclass.2.Givethestudentssometimetorecallwhatthey’velearnedinthisclass.PartVI:Homework:Retellthetext.PartVII:Atest:Exercise11onpage146intheWB.