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时间:2021-04-19
《最新新课标必修3-UNIT4-a-visit-to-the-moon-阅读课件教学讲义PPT课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、新课标必修3-UNIT4-a-visit-to-the-moon-阅读课件Doyouwanttogotothemoon?Imaginewhatyouwillfeelwhenyouareinspace?Thepulloftheearth’sgravitywilldisappearwhenyouareinspace.Youwillbeweightless.Thegravityofthemoonisverylight.Youwillweighlessthanontheearth.1._____wasthefirstperso
2、nlandingonthemoon?A.ArmstrongB.YangliweiC.TomCruiseD.IssacNewton2.Whendidhelandonthemoon?A.1921B.1969C.1954D.19493.WhendidYangLiweigotothespace?A.Oct,2003B.Jan,2003C.Oct,2004D.Jan,2002ABAthefirstmaninspaceYuriGagarinThefirstmanonthemoonNeilArmstrongRussia1961U.S
3、.A.1969Doyouknowwhotheyare?ReadingAvisittothemoonChinaisplanningtolandonthemooninthenearfuture.Fastreading:TrueorFalseTheforceofofgravitywouldchangefourtimesontheirjourney.()2.Whentheywereonthemoon,theywouldnotfeelthegravitybecausetherewasnogravityonthemoon.()3.
4、Sincethegravityhaschanged,theirwalkdidn’tneedalotofpractice.()FFFDetailedreading:ReadPara2carefullyandunderline3sentencesthatshowthechangesofthegravity.asheleftinspaceonthemoon)thewaygravitychangedlefttheearthinspaceonthemoonItbecameverylight.Thegravitybecamever
5、ystrong.Thegravitydisappeared.ThethreewaysinwhichgravitychangedforLiYanpingandhowhisweightchanged.1.Thepullofgravitybecameverystrongshelefttheearth’satmosphere.Hisweightisnormal.2.Itdisappearedwhenhewasinspace.Heisweightless.3.Itwasverylightwhenhewasonthemoon.He
6、weighslessthanonearth.Wastheirreturningpainful?Whathappenedtothespaceship?Yes.Firebrokeoutontheoutsideofthespaceship.Q&ALastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceof______wouldchangethreetimesonourjourney.Thenwetookoff.Graduallytheweight__
7、_____.WhenIwasinspace,it__________.We_______weightlesslyinthecabinandI_________.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpractice_________gravitychanged.Thereturningoftheearthwasvery__________.Wewereamazedtowatchfire________ontheoutsideofthe
8、ship.gravitylesseneddisappearedfloatedcheeredupnowthatfrighteningbreakoutSummaryIfyouvisitthemoonwhatproblemswillyoumeetwith?Tosolvetheseproblems,whatthingswillyoutak
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