SectionC (2)

,Unit4AmazingScience,Topic2Imexcitedaboutthethingsthatwillbediscoveredinthefuture.,SectionC,武夷山市三中徐家华,LetsexploreMars!,solarsystem太阳系,CaoChongweighedtheelephant.,weighwe(vt.)重，有重,Howmuchdidtheelephantweigh?,loseweight,putonweight,weight(n)重量,Doyouknowwhytheballfallstotheground?,gravityravti(n.)引力，重力,Newtondiscoveredthegravityoftheearth.,Newton牛顿,diameterdaimit(n.)直径,diameter,15cm,Whatisthediameterofthiscircle?,Whatisthediameteroftheearth?,地球直径大约是12756千米,Lookatthepicture，predictwhichstatementsaretrueaboutMars.,_1.Marslookslikearedball._2.ThetemperatureonMarsisveryhigh._3.Marsismuchlargerthantheearth._4.Marsistoofarawayforustoreach.,T,F,F,F,Mars,4th,2/5,53%,228,-138-28,0.13%,90,36,MarsisthefourthplanetfromthesuninoursolarsystemandisnamedafterMars,theRomangodofwar.,以命名benamedafter,4th,罗马战神,4th,Marsgoesaroundthesunatadistanceofabout228millionkilometers.,distnsn.距离，相隔,228,倍数/分数/百分数as+adj./adv.+as,Itsdiameteris53%aswideasthatoftheearth.,直径,这个图书馆的书是那个图书馆的70%。,Thebooksinthislibraryare70%asmanyasthoseinthatlibrary.,这条河是那条河的1/3深。,Thisriverisonethirdasdeepasthatone.,53%,Duringspringandsummer,thesurfaceofMarsiscoveredbystrongstorms.ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.,引力，重力,风暴暴（风）雨,2/5,CanyougetmoredetailedinformationaboutMars?,Readthepassagecarefully,thenfinish1b.,1b.writedowntheinformationaboutMars.,53%aswideasthatoftheearth,redandorange,aball,duringspringandsummer:strongstormstemperature:between-138and28,abouttwo-fifthsasstrongasitisonearth,about228millionkilometers,Mars,the_planetofthesolarsystem,goesaroundthesunata_ofabout228millionkilometers.Its_is53%aswideasthatoftheearth.Itlookslikea_and_ball.Itsverybeautiful.Butduring_and_,strong_cancoverthewhole_ofMars.Thegravityonthesurfaceofitisabout_as_asitisonearth.,Exercise,fourth,distance,red,orange,spring,summer,storms,surface,two-fifths,strong,diameter,太阳系,以命名,罗马战神,相隔,重力,重，有重（v),互相最靠近,直径,beclosesttoeachother,TheRomangodofwar,weigh,atadistanceof,gravity,diameter,namedafter,solarsystem,Translate:,1cDiscussthecrazyquestionswithyourpartnerandstateyourreasons.,1.DoesMarshaveagoodclimateforplants?2.IsMarsausefulplacetodryfruit?3.IsMarsagoodplaceforhumanbeingstolive?4.IsMarsacomfortableplaceforheavypeople?,Morechallenges:,1.Howmanyplanetsarethereinthesolarsystem?,2.WhenisthesurfaceofMarscoveredbystrongstorms?,3.Ifyouweigh50kilosonearth,howmuchwillyouweighonMars?,4.HowfarisitfromthesuntoMars?,5.Whatisthefifthplanetinthesolarsystem?,6.这条铁路是以詹天佑命名的。,7.这条河流是那条河流的2倍长。,8.WhatsthetemperatureonMars?,Summary,Welearn:1.Somewords:storm,weigh，diameter,gravity2.Somephrases:namedafter,asas,atadistanceof3.Somesentences:(1)Itsdiameteris53%aswideasthatoftheearth.(2)ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.Wecan:TalkaboutsomethingmoreaboutMars.,Homework:,1.Reviewthelessonandsumup