仁爱九年级英语上Unit4Topic3SectionC.ppt

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1、Unit4Topic3Idon’tthinkalienscanbefoundinspace.SectionCBesidestheearth,doyouknowotherplanets?SolarsystemMarsTheRedPlanetWhatdoyouknowaboutMars?Whatdoesitlooklike?=Whatisitlike?(事物)CompareMarswiththeearth:size,color,gravity,temperature,theoxygenWhatdoyouknowaboutMars?Whatdoesitlooklike?Marsisthefou

2、rthplanetfromthesuninoursolarsystemandisnamedafterMars,theRomangodofwar.Itsdiameteris53%aswideasthatoftheearth.Marsgoesaroundthesunatadistanceofabout228millionkilometers.YoucantellwhichplanetisMarsbecauseitisbrightredinthenightsky.Itlookslikearedandorangeball.It’sverybeautiful.Butduringspringands

3、ummer,strongstormscancoverthewholesurfaceofMars.ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.Soaperson(whoweighs90kilosonearth)weighsonly36kilosonMars.ThetemperatureonMarsisbetween-138°Cand28°C.Theairhasonly0.13%oxygen.IttakesaspaceshipabouteightmonthstoreachMarsfromtheearth

4、whenthetwoplanetsareclosettoeachother.ScientistsarestillsearchingformoreinformationaboutMars.1aReadandanswerthequestions:1.WhatisMarsnamedafter?It’snamedaftertheRomangodofwar.2.HowfarisMarsfromthesun?Atadistanceofabout228millionkilometers.3.Howmuchdoesapersonweighifheweighs150kilosonearth?60kilos

5、.4.CanhumanbeingsliveonMars?No,because…1bworkaloneRead1aagainandwritedowntheinformationaboutMars.Diameter:___________________________________Color:______________________________________Shape:_____________________________________Climate:_____________________________________________________________

6、_____________________________________________________________Gravity:____________________________________Distancefromthesun:________________________53%aswideasthatoftheearthbrightredinthenightskyaredandorangeballabouttwo-fifthsasstrongasitisonearthabout228millionkilometersDuringspringandsummer,st

7、rongstormscancoverthewholesurfaceofMars.ThetemperatureonMarsisbetween–138and28.1.atadistanceof+数字:“相隔…远”at+价格：Theysellthericeat5yuanperkilo.at+速度Hedroveataspeedof90kilometersperhour.at+时刻：Iusuallygetupat6o’clock.另：inth