InthepastUnit6Howwillpeoplecommunicatetomorrow?Whatkindofjobswillpeoplehavetomorrow?Howwillpeopledobusinesstomorrow?Whatkindofmoneywillpeopleusetomorrow?Whatwillhumanslooklikeinthefuture?Wherewillpeopleliveinthefuture?Whatwillschoolsbelikeinthefuture?1.Greetingfromthefuture.(来自未来的问候。)2.pollution（污染）3.population（人口）4.planet（行星）5.Mars（火星）6.keepintouchwith(保持联系)7.timemachine（时间机器）8.sendmessages9.timesystem（时间系统）10.devide…into11.stayhealthy=keepfit（保持健康）12.createthings（创造东西）13.preparefor（为…做怎备）ListeningListening(part1)1WhatyearisMekanikalivingin?()A3040B3044C58ALD48AL2Wheredoesshelive?()AMarsBMercuryCJupiterDEarth3Whydothepeopleontheearthhavetoleave?()AthegrowthofpopulationBtoomuchpollutionCtheabsenceoffoodDthedeadlydisease4Whyisshewritingyouthisletter?()AhersociologyteacheraskedhertosendalettertothepastBherscienceteacherhadhersendalettertothefutureChersciencehadhersendalettertothepastDhersociologyteacheraskedhertosendalettertothefuturehadtodosomethingtosavethepeopleontheplanet.Therearesomanypeopleontheearth,andtherewassomuchpollution,thattheonlywaytokeeptheplanetfromdyingwastosendpeopleintospace.Myfamilywasoneofthethoseones.Aboutonethirdoftheearth’spopulationwasleftbackhome,andtherestofuswentintospace.We’renowlivinginanewcityontheplanetMars.Lifehereisverynice,andwearehappyinournewhome.Westillkeepintouchwiththepeopleonearthandsomeofusgobackforshortvisits.Theearthisbetternow,andthepeoplebackhomearedoingtheirbesttocleanuptheplanet.IwasbornhereonMarsandI’veneverbeentoearth.Mygrandparentsandparentstellmeabouttheearthanditsoundslikeabeautifulplace.Whenmyscienceteachertoldmethatwecoulduseourschool’stimemachinetosendmessagestothepast,Iwanttosendonetoyouandtellyouaboutlifehere.Part2HowisMekanika’slifedifferentfromours?Part2Everymorning,Ihavetogetupattwoo’clock.Thatprobablysoundsverystrangetoyou,but,yousee,wehaveadifferenttimesystemhere.Wedividethedayintoeightparts.Twoo’clockinthemorninghereonMarsisalmostlikesixo’clockonearth.Ieatbreakfastwithmyfamily