新课标必修3 UNIT4 a visit to the moon 阅读

UNIT4Avisittothemoon,1,学习交流PPT,Doyouwanttogotothemoon?Imaginewhatyouwillfeelwhenyouareinspace?,2,学习交流PPT,Thepulloftheearthsgravitywilldisappearwhenyouareinspace.Youwillbeweightless.,Thegravityofthemoonisverylight.Youwillweighlessthanontheearth.,3,学习交流PPT,Thegravityonthemoonis1/6asstrongasitisonearth.Thismeansthatsomeonewhoweighs150lbs(磅)onEarthwouldweighonly25lbsonthemoon!Youmightthinkthatthiswouldmakewalkingmucheasier,butitisactuallyquitedifficultLaterintheApollo(阿波罗)(Moonlanding)mission,astronautsdiscoveredthatitwaseasiertohop(跳)thanitwastowalk.,4,学习交流PPT,Spacewalk,5,学习交流PPT,2.Ittakesthemoononedaytomovearoundtheearth.,3.Theearthistheonlyplanetmovingaroundthesun.,TrueorFalse,Theearthmovesaroundthesun.,T,F,F,F,4.Thereisatmosphereonthemoon.,6,学习交流PPT,1._wasthefirstpersonlandingonthemoon?A.ArmstrongB.YangliweiC.TomCruiseD.IssacNewton,2.Whendidhelandonthemoon?A.1921B.1969C.1954D.1949,3.WhendidYangLiweigotothespace?A.Oct,2003B.Jan,2003C.Oct,2004D.Jan,2002,A,B,A,7,学习交流PPT,thefirstmaninspace,YuriGagarin,Thefirstmanonthemoon,NeilArmstrong,Russia1961,U.S.A.1969,8,学习交流PPT,Doyouknowwhotheyare?,9,学习交流PPT,10,学习交流PPT,11,学习交流PPT,ReadingAvisittothemoon,Chinaisplanningtolandonthemooninthenearfuture.,12,学习交流PPT,Fastreading:TrueorFalse,Theforceofofgravitywouldchangefourtimesontheirjourney.()2.Whentheywereonthemoon,theywouldnotfeelthegravitybecausetherewasnogravityonthemoon.()3.Sincethegravityhaschanged,theirwalkdidntneedalotofpractice.(),F,F,F,13,学习交流PPT,Detailedreading:ReadPara2carefullyandunderline3sentencesthatshowthechangesofthegravity.asheleftinspaceonthemoon),14,学习交流PPT,Itbecameverylight.,Thegravitybecameverystrong.,Thegravitydisappeared.,15,学习交流PPT,ThethreewaysinwhichgravitychangedforLiYanpingandhowhisweightchanged.,1.Thepullofgravitybecameverystrongshelefttheearthsatmosphere.Hisweightisnormal.,2.Itdisappearedwhenhewasinspace.Heisweightless.,3.Itwasverylightwhenhewasonthemoon.Heweighslessthanonearth.,16,学习交流PPT,Wastheirreturningpainful?Whathappenedtothespaceship?,Yes.Firebrokeoutontheoutsideofthespaceship.,Qtwiceasmuch),26,学习交流PPT,Translation:1.既然你忙,就让我给你做吧。Nowthatyouarebusy,letmedoitforyou.2.既然人都齐了,咱们开始干吧。Nowthateveryoneishereletsstartwork,27,学习交流PPT,4.nowthat既然；现在/当时,nowthat同since相似，语气较弱，强调人们已知的事实。,Translation:1.既然你忙,就让我给你做吧。Nowthatyouarebusy,letmedoitforyou.2.既然人都齐了,咱们开始干吧。Nowthateveryoneishereletsstartwork,28,学习交流PPT,1).A+be+倍数+as+形容词原级+as+BThistreeisthreetimesastallasthatone.这棵树是那棵树的三倍高(比高两倍)。Hisfatheristwiceasoldashe.他父亲是他年龄的两倍(大一倍)。,4.ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.,29,学习交流PPT,2).A+be+倍数+形容词比较级+than+BTheYangtzeRiverisalmosttwicelongerthanthePearlRiver.长江几乎比珠江长两倍。Thenumberofthestudentsinourschoolisthreetimeslargerthanthatintheirs.我们学校的学生数量比他们学校的多三倍。,30,学习交流PPT,3).A+be+倍数+the+名词(size,length,amount)+of+BThenewlybroadenedsquareisfourtimesthesizeofthepreviousone.新扩建的广场是未扩建时的四倍大。,31,学习交流PPT,Doyouregret_(pay)100dollarsforthepainting?No,Iwouldgladlyhavepaid_(两倍那么多了)forit.(paying;twiceasmuch),32,学习交流PPT,Howdoestheforceofgravitychangeifyouvisitthemoon?,gravity:forcethatattractsobjectsinspacetowardseachother.万有引力，重力，地心引力,Whatistheearthsnaturalsatellite?,Themoon.,（自然卫星）,33,学习交流PPT,thenaturalforcethatcausesanobjecttomovetowardthecentreoftheearth.,Gravity,34,学习交流PPT,Part1:TrueorFalse,Theearthmovesaroundthesun.,T,F,F,F,T,2.Ittakesthemoononedaytomovearoundtheearth.,3.Earthistheonlyplanetmovingaroundthesun.,4.Thereisatmosphereonthemoon.,5.Plutoisthesmallestplanetinsolarsystem?,35,学习交流PPT,Part2:Multiplechoice:,1._isthenearestplanetfromthesun?A.VenusBMarsC.MercuryD.Uranus,C,2._isthebiggestplanetinthesolarsystem?A.MarsB.PlutoC.EarthD.Jupiter,D,36,学习交流PPT,3._wasthefirstpersonlandingonthemoon?A.ArmstrongB.YangliweiC.TomCruiseD.IssacNewton,4.Whendidhelandonthemoon?A.1921B.1969C.1954D.1949,5.WhendidYangLiweigotothespace?Oct,2003B.Jan,2003C.Oct,2004D.Jan,2002,A,B,A,37,学习交流PPT,IsaacNewton,AlbertEinstein,StephenHawking,Doyouknownanyfamousastronomersandtheirtheoryongravity?,38,学习交流PPT,P30Fastreading:Readthepassagequickly,finishthetrueorfalsequestions:,Theforceofofgravitywouldchangefourtimesontheirjourney.()2.Whentheywereonthemoon,theywouldnotfeelthegravitybecausetherewasnogravityonthemoon.()3.Sincethegravityhaschanged,theirwalkdidntneedalotofpractice.(),F,F,F,39,学习交流PPT,verystrong,disappeared,verylight,Detailreading:ReadPara2carefullyandunderline3sentencesthatareaboutthechangesoftheforceofthegravity.(asheleft,inspace,onthemoon),Step3,40,学习交流PPT,Onthemoon,Thechangeofgravity,Inspace,Verystrong,Veryheavy,Disappeared,Floatedweightlessly,Verylight,Leavetheearth,Scanning,41,学习交流PPT,Listening:Listentothetapeandanswerthefollowingquestions:1.Howmanytimeswouldtheforceofgravitychange?2.Wasthatleavingthemoonsgravityaspainfulasleavingtheearths?,42,学习交流PPT,Summary:,LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_.graduallytheweightl_.whenIwasinspace,itd_.wef_weightlesslyinthecabinandIc_.wheniwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpracticen_gravitychanged.Thereturningoftheearthwasveryf_.wewereamazedtowatchfireb_ontheoutsideoftheship.,gravity,heavy,lessened,disappeared,floated,cheeredup,nowthat,frightening,breakout,Step5,43,学习交流PPT,Summary:,LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_.graduallytheweightl_.whenIwasinspace,itd_.wef_weightle