unit 4 topic 2 section c

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1、Unit4AmazingScienceTopic2I’mexcitedaboutthethingsthatwillbediscoveredinthefuture.SectionCWhatareyougoingtobewhenyougrowup？Why?barberliftertrafficpoliceDoyouknowanythingaboutMars?solarsystemMarsisthefourthplanetfromthesuninoursolarsystemandisnamedafterMars,theRomangodofwar.MarstheRoma

2、ngodofwar被命名太阳系罗马战神1aReadandunderstand.LookatthepicturesandpredictwhichstatementsaretrueaboutMars.Thenreadthepassagequicklyandchecktheanswers._____1.Marslookslikearedball._____2.ThetemperatureonMarsisveryhigh._____3.Marsismuchlargerthantheearth._____4.Marsistoofarawayforustoreach.TFFF

3、Listento1aandanswerthequestions.(1)WhatdoesMarslooklike?(2)HowfarisMarsfromthesun?(3)What’sthetemperatureonMars?ItlookslikearedandorangeballIt’sabout228millionkilometersawayfromthesun.Itisbetween-138℃and28℃.1bRead1aagainandwritedowntheinformationaboutMars.DiameterColorShapeClimateGravi

4、tyDistancefromthesun53%aswideasthatoftheearthredandorangeaballduringspringandsummer:strongstormstemperature:between-138℃and28℃abouttwo-fifthsasstrongasitisonearthabout228millionkilometers1.Itsdiameteris53%aswideasthatoftheearth.它的直径是地球直径的53%。2.ThegravityonthesurfaceofMarsisabouttwo-fif

5、thsasstrongasitisonearth.火星表面的引力大约是地球引力的五分之二。倍数(分数)+as+adj.+as……的几倍3.Marsgoesaroundthesunatadistanceofabout228millionkilometers.火星在距太阳约228000000千米处环绕着太阳转。atadistanceof…有……距离LanguagePoints4.ScientistsarestillsearchingformoreinformationaboutMars.科学家们正在对火星进行更多的探索。searchfor:表示没有“被搜索的对象”只有“

6、寻找的目标”。如：Allnighttheysearchedforthelostboy.search…for…表示搜查某一对象的目的是要找到什么,强调有具体的目标。如：ShesearchedmanyshopsforJim’sgift.search意为“在……搜查”或“搜身”,是个及物动词，后面直接跟“被搜查的对象”。如：Mr.Smithsearchedeveryroominthehouse.LanguagePointsMars,the_______planetofthesolarsystem,goesaroundthesunata_________ofabout228

7、millionkilometers.Its_______is53%aswideasthatoftheearth.Itlookslikea_____and_______ball.It’sverybeautiful.Butduring______and_______,strong__________cancoverthewhole__________ofMars.Thegravityonthesurfaceofitisabout________as________asitisonearth.fourthdistanceredorangespringsummersto