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Unit4Astronomythescienceofthestars.doc

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Unit4AstronomythescienceofthestarsPeriod1TeachingGoals:ToarouseSs’interestintheknowledgeofastronomyandscience.TodevelopSs’abilityinlisteningandspeaking.TeachingProcedures:Step1.Leading-inGiveSsafewminutestosaysth.aboutsciencebyaskingthefollowingquestions.Whoisthefirstmaninspace,doyouknow?WhichspaceshipdidYangLiweitaketospace?Doyouwanttogotospaceifyouaregivenachance?Step2.WarmingUpAsksomeSsthequestionsfirstandthengetSstodiscusswitheachother.Iftimepermits,haveoneortwogroupspresenttheiranswerstothewholeclass.Howmanysciencesubjectsarewestudyingnow?Doyouhavesomescientificmethodstolearnthemwell?Asyouknow,alargenumberofstudentswanttobecomescientistsinthefuture.Butwhatkindofqualitiesandskillsdoweneedtoberealscientists?Step3.TalkingDivideSsintosixgroups,andaskthemtotalkabouttherequestofTalkingonp62andanswerthefollowingquestions.Differentstudentswillgivedifferentanswers.Makenotesofsomevaluableinformationandmakeaconclusionatlast.Whatnecessaryinstructionsshouldbemadeupfornewspacetravelers?Canyoumakealistofthem?ShowSssomebeautifulpicturesoftheuniverseandsay,“Nowlookatthepictures.Howbeautifultheuniverseis!Itisalsofullofmysteries.HaveyoueverdreamedofflyingtothespacelikeYangLiweitounlockthemysteriesoftheuniverse?Ifyoucould,whatthingsshouldyoupayattentionto?EncourageSstogiveasmuchinformationaspossible.Afterthediscussion,writedownsomekeywordsandimportantexpressionsontheblackboardtohelpSstohavethesenseoftravelinginspace.Step4ListeningGetSstolookthroughtheexercisesbeforegivingthemthelisteningmaterial.Atthesametimeremindthemofthenewandkeywords:astronaut,experience,instruments,pilotairforce,rocket.Playthetapetwice.Forthefirsttime,justaskSstolistenforthegist.Forthesecondtime,askSstopreparetodotheexercises.Iftimepermits,playagaininordertogiveclassachancetocheckorcompletetheirexercises.Period2TeachingGoals:ToenableSstobetterunderstandthetheoryabouttheoriginofuniverseandlifeontheearth:the“BigBang”theory.ToenableSstoconcernthemselvesaboutthefutureoflifeontheearth.TeachingProcedures:Step1.Pre-