高中英语 Unit4 Astronomy the science of the stars Using Language（1）学案 新人教版必修3.doc

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1、Unit4AstronomythescienceofthestarsUsingLanguage（1）学案【要达成的目标】1.Thestudentswillbeabletodeveloptheirlisteningskills.2.Thestudentswillbeabletodeveloptheirreadingskills.【“教”与“学”过程】本堂课使用的电教手段Task1IndividualWorkBeforeClass(30minutes)SeehomeworkinLearningGuide5Task2IndividualWorkInClass(20minutes)Activ

2、ity(1)Question:Whatdoyouknowaboutthemandtheirideasongravity?IsaacNewtonAlbertEinsteinStephenHawkinginformationActivity(2)Listenforthegist.Seepage30Ex2.Activity(3)Listenforthedetails.IsaacNewtonAlbertEinsteinStephenHawkingideaLargebodieshavea_______whichpullsthingstowardsthemInspace,largeobjects

3、make___________bend.The_______theobject,the_____________space-timebends.Blackholeshaveavery______massand_______thingstowardsthem.Develop-mentThe_______theobject,the_______thegravity.Timegoes_______Inverystronggravity.Ifyougoovertheedge,youcan’t_________.Butifyoudon’t,youmaybeableto_______.Task3

4、IndividualWorkInClass(10minutes)Activity(1)SkimthepassageAVisitToTheMoonandanswer①Howmanytimesdoesgravitychangeduringthejourney?②Howdoesitchangeduringthejourney?whenleavingtheearthtoofarfromtheearthonthemoongravityweightActivity(2)Answer.Whatisyourunderstandingofgravitynow?Activity(3)Listentoth

5、etapeandpracticereading.HomeworkActivity(1)Practicereadingthepassage.Activity(2)Finishthetaskbeforeclassinthenextlearningguide.【课后反思】（教师写成败得失和改进措施，学生写学习体会和存在的问题）【课后反思】（教师写成败得失和改进措施，学生写学习体会和存在的问题）