Unit 4 Topic 2 Section C 课件 2

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1、Unit4AmazingScienceTopic2I’mexcitedaboutthethingsthatwillbediscoveredinthefuture.SectionC课件2MarsDoyouknowanythingaboutMars?ItisnamedafterMars,theRomangodofwar.以...命名罗马战神solarsystem太阳系Marsisthefourthplanetfromthesuninoursolarsystem.Itismuchsmallerthantheear

2、th.Itsdiameteris53%oftheearth’s.直径earthLookatthepicturesandpredictwhichstatementsaretrueaboutMars._____1.Marslookslikearedball._____2.ThetemperatureonMarsisveryhigh._____3.Marsismuchlargerthantheearth._____4.Marsistoofarawayforustoreach.TFFFRead1aandanswe

3、rthequestions.(1)WhatdoesMarslooklike?(2)HowfarisMarsfromthesun?(3)What’sthetemperatureonMars?It’sabout228millionkilometersawayfromthesun.Itisbetween-138℃and28℃.Itlookslikearedandorangeball.1bRead1aagainandwritedowntheinformationaboutMars.Diameter(直径)Color

4、Shape（形状）Climate（气候）Gravity（重力）Distance（距离）fromthesun53%aswideasthatoftheearthredandorangeaballduringspringandsummer:strongstormstemperature:between-138℃and28℃abouttwo-fifthsasstrongasitisonearthabout228millionkilometers1.Itsdiameteris____aswideasthatofthe

5、earth.它的直径是地球直径的____。2.ThegravityonthesurfaceofMarsisabout_________asstrongasitisonearth.火星表面的引力大约是地球引力的_________。倍数(分数)+as+adj.+as……的几倍3.Marsgoesaroundthesunatadistanceofabout228millionkilometers.火星在距太阳约2亿2千8百万千米处环绕着太阳转。atadistanceof…有……距离53%53%two-fifths

6、五分之二Readandunderstand.Mars,the_______planetofthesolarsystem,goesaroundthesunata_________ofabout228millionkilometers.Its_______is53%aswideasthatoftheearth.Itlookslikea_____and_______ball.It’sverybeautiful.Butduring______and_______,strong__________cancoverth

7、ewhole__________ofMars.Thegravityonthesurfaceofitisabout________as________asitisonearth.fourthdistanceredorangespringsummerstormssurfacetwo-fifthsstrongdiameterRead2andanswerthequestions.(1)Whoisthise-mailfromandto?ItisfromUncleStephentoKangkang.(2)Howlong

8、didittakethemtogetthere?Morethantwoyears.(3)Dideverythinggowellduringthejourney?No,itdidn’t.HiKangkang,Ithasbeentwodays_________(since,from)welandedonMars.It_________(cost,took)usmorethantwoyearsto_________(r