新課標(biāo)必修3 UNIT4 a visit to the moon 閱讀課件

UNIT4AvisittothemoonDoyouwanttogotothemoon?Imaginewhatyouwillfeelwhenyouareinspace?Thepulloftheearth’sgravitywilldisappearwhenyouareinspace.Youwillbeweightless.Thegravityofthemoonisverylight.Youwillweighlessthanontheearth.

Thegravityonthemoonis1/6asstrongasitisonearth.Thismeansthatsomeonewhoweighs150lbs(磅)onEarthwouldweighonly25lbsonthemoon!Youmightthinkthatthiswouldmakewalkingmucheasier,butitisactuallyquitedifficultLaterintheApollo(阿波羅)(Moonlanding)mission,astronautsdiscoveredthatitwaseasiertohop(跳)thanitwastowalk.

Spacewalk2..Ittakesthemoononedaytomovearoundtheearth.3.Theearthistheonlyplanetmovingaroundthesun.TrueorFalseTheearthmovesaroundthesun.TFFF4.Thereisatmosphereonthemoon.1._____wasthefirstpersonlandingonthemoon?A.ArmstrongB.YangliweiC.TomCruiseD.IssacNewton2.Whendidhelandonthemoon?A.1921 B.1969C.1954D.1949

3.WhendidYangLiweigotothespace?A.Oct,2003B.Jan,2003C.Oct,2004D.Jan,2002

ABAthefirstmaninspaceYuriGagarinThefirstmanonthemoonNeil

Armstrong?Russia1961U.S.A.1969Doyouknowwhotheyare?ReadingAvisittothemoonChinaisplanningtolandonthemooninthenearfuture.Fastreading:TrueorFalseTheforceofofgravitywouldchangefourtimesontheirjourney.()2.Whentheywereonthemoon,theywouldnotfeelthegravitybecausetherewasnogravityonthemoon.()3.Sincethegravityhaschanged,theirwalkdidn’tneedalotofpractice.()FFFDetailedreading:ReadPara2carefullyandunderline3sentencesthatshowthechangesofthegravity.

asheleftinspaceonthemoon)thewaygravitychangedlefttheearthinspaceonthemoonItbecameverylight.

Thegravitybecameverystrong.

Thegravitydisappeared.ThethreewaysinwhichgravitychangedforLiYanping andhowhisweightchanged.1.Thepullofgravitybecameverystrongshelefttheearth’satmosphere.Hisweightisnormal.2.Itdisappearedwhenhewasinspace.Heisweightless.3.Itwasverylightwhenhewasonthemoon.Heweighslessthanonearth.Wastheirreturningpainful?Whathappenedtothespaceship?Yes.Firebrokeoutontheoutsideofthespaceship.Q&ALastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceof______wouldchangethreetimesonourjourney.Thenwetookoff.Graduallytheweight_______.WhenIwasinspace,it__________.We_______weightlesslyinthecabinandI_________.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpractice_________gravitychanged.Thereturningoftheearthwasvery__________.Wewereamazedtowatchfire________ontheoutsideoftheship.gravitylesseneddisappearedfloatedcheeredupnowthatfrighteningbreakoutSummaryIfyouvisitthemoonwhatproblemswillyoumeetwith?Tosolvetheseproblems,whatthingswillyoutake?Pleasetakedownsomenoteswhilediscussing,afterdiscussion,pleasereportit.Example:IfIvisitedthemoon,Imighthave?problems:Thefirstoneis····Because····Tosolvethisproblem,Iwouldtake····withme.Thesecondoneis········Discussion:HowtocoolyouYoumighthave4mainproblems:HowtobreatheproblemsWhattoeatWhattowearspacesuitoxygentanksspacefoodthingsneededonthemoonIfyoufollowthisadvice,Ithinkyouwillhaveagoodtimeonthemoon.waterHomeworkWriteapassageexplainingthreeproblemsyoumightmeetonthemoonandhowyouwillsolveit.2.watch…do/doing:觀看，注視我們看著太陽正在樹后面落下。We_____________________behindthetrees.每一天當(dāng)他們看到植物生長，他們的心里都充滿了希望。Everydayasthey______________________,theirheartsfilledwithhope.watchedthesunsettingwatchedtheplantgrow1).“A+be+倍數(shù)+as+形容詞原級(jí)+as+B〞.Thistreeisthreetimesastallasthatone.Hisfatheristwiceasoldashe.2).“A+be+倍數(shù)+形容詞比較級(jí)+than+B〞3.…twiceasfaras…TheYangtzeRiverisalmosttwicelongerthanthePearlRiver.

長江差不多比珠江長兩倍。Thenumberofstudentsinourschoolisthreetimeslargerthan

thatintheirs.

我們學(xué)校學(xué)生數(shù)量是他們學(xué)校的三倍。3).“A+be+倍數(shù)+the+名詞(size,length,amount)+of+B〞Thenewlybroadenedsquareisfourtimesthesizeofthepreviousone.

新擴(kuò)建的廣場是未擴(kuò)建時(shí)的四倍大?！狣oyouregret_______(pay)100dollarsforthepainting?—No,Iwouldgladlyhavepaid__________(兩倍那么多了)forit.

(paying;twiceasmuch)

Translation:1.既然你忙,就讓我給你做吧。Nowthatyouarebusy,letmedoitforyou.2.既然人都齊了,咱們開始干吧。Nowthateveryoneisherelet’sstartwork．

4.nowthat既然；現(xiàn)在/當(dāng)時(shí)nowthat同since相似，語氣較弱，強(qiáng)調(diào)人們的事實(shí)。Translation:1.既然你忙,就讓我給你做吧。Nowthatyouarebusy,letmedoitforyou.2.既然人都齊了,咱們開始干吧。Nowthateveryoneisherelet’sstartwork．1).A+be+倍數(shù)+as+形容詞原級(jí)+as+BThistreeisthreetimesastallasthatone.

這棵樹是那棵樹的三倍高(比…高兩倍)。Hisfatheristwiceasoldashe.

他父親是他年齡的兩倍(大一倍)。4.ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.

2).A+be+倍數(shù)+形容詞比較級(jí)+than+BTheYangtzeRiverisalmosttwice longerthanthePearlRiver.長江幾乎比珠江長兩倍。Thenumberofthestudentsinour schoolisthreetimeslargerthanthatin theirs.

我們學(xué)校的學(xué)生數(shù)量比他們學(xué)校的多三倍。3).A+be+倍數(shù)+the+名詞(size, length,amount)+of+BThenewlybroadenedsquareisfourtimesthesizeofthepreviousone.

新擴(kuò)建的廣場是未擴(kuò)建時(shí)的四倍大?！狣oyouregret_______(pay)100dollarsforthepainting?—No,Iwouldgladlyhavepaid__________(兩倍那么多了)forit.

(paying;twiceasmuch)Howdoestheforceofgravitychangeifyouvisitthemoon?gravity:forcethatattractsobjectsinspacetowardseachother.萬有引力，重力，地心引力Whatistheearth’snaturalsatellite?Themoon.〔自然衛(wèi)星〕thenaturalforcethatcausesanobjecttomovetowardthecentreoftheearth.GravityPart1:TrueorFalseTheearthmovesaroundthesun.TFFFT2.Ittakesthemoononedaytomovearoundtheearth.3.Earthistheonlyplanetmovingaroundthesun.4.Thereisatmosphereonthemoon.5.Plutoisthesmallestplanetinsolarsystem?Part2:Multiplechoice:

1._____isthenearestplanetfromthesun?A.VenusBMarsC.MercuryD.UranusC2._____isthebiggestplanetinthesolarsystem?A.MarsB.Pluto

C.EarthD.Jupiter

D3._____wasthefirstpersonlandingonthemoon?A.ArmstrongB.YangliweiC.TomCruiseD.IssacNewton4.Whendidhelandonthemoon?A.1921 B.1969C.1954D.1949

5.WhendidYangLiweigotothespace?Oct,2003B.Jan,2003C.Oct,2004D.Jan,2002

ABAIsaacNewtonAlbertEinsteinStephenHawkingDoyouknownanyfamousastronomersandtheirtheoryongravity?P30Fastreading:Readthepassagequickly,finishthetrueorfalsequestions:Theforceofofgravitywouldchangefourtimesontheirjourney.()2.Whentheywereonthemoon,theywouldnotfeelthegravitybecausetherewasnogravityonthemoon.()3.Sincethegravityhaschanged,theirwalkdidn’tneedalotofpractice.()FFF3timesTheforceofgravitychange1change______________asheleft2change___________whenhewasinspace3change___________whenhewasonthemoonverystrongdisappearedverylightDetailreading:ReadPara2carefullyandunderline3sentencesthatareaboutthechangesoftheforceofthegravity.(asheleft,inspace,onthemoon)Step3OnthemoonThechangeofgravityInspaceVerystrongVeryheavyDisappeared

FloatedweightlesslyVerylightLeavetheearthScanningListening:Listentothetapeandanswerthefollowingquestions:1.Howmanytimeswouldtheforceofgravitychange?2.Wasthatleavingthemoon’sgravityaspainfulasleavingtheearth’s?Summary:LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_____wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_______.graduallytheweightl_______.whenIwasinspace,itd__________.wef_______weightlesslyinthecabinandIc________.wheniwas