Unit6Survival1.supplement/?s?pl?ment/v.補充，增補，增加n.增補(物);補充(物);添加物;(報紙的)增刊2.eliminate/??l?m?ne?t/v.消除，根除eliminationn.消除，根除3firefighter/?fa??fa?t?(r)/n.消防隊員fire+fighter“與火戰斗的人”firefightingequipment消防設備firefightingteam消防隊4.bring…undercontrol使……處于控制之下outofcontrol失去控制beyondcontrol無法控制underthecontrolof…在….的控制下,在….的掌管下5.blaze/ble?z/n.烈火，大火，火災6.fierce/f??s/adj.惡劣的，極端的；

猛烈的，激烈的；兇猛的7.react/ri??kt/v.（作出）反應reaction/ri??k?n/n.反應reactagainstsb/sth反對；反抗reactto對……作出反應reactwith與……發生反應Pre-readingLookatthepictureandguesswhatitis.Whatisthisplanet?Earth?No,itisMars.WhereisMars?HowmuchdoyouknowaboutMars?MarsisslightlymorethanhalfthesizeofEarth,withcorrespondinglowergravity.It’sadry,rockyplanet,withwhitepolar“ice”capsthatconsistmostlyoffrozencarbondioxide.TheaveragetemperatureonMarsisminus63degreesCelsius.AdayonMarsisaboutaslongasadayonEarth,plusabout39minutes.SeasonsandyearsaretwiceaslongastheyareonEarth.Sincethe1960s,Marshasbeenthesubjectofseveralunmannedexplorationmissions.However,manysuchearlymissionsfailed.AboutMars

Itmaybedifficult

toimaginewhenpeoplewillliveontheplanetMars.1)Marsisthe_____smallestplanetinthesolarsystem.a.secondb.thirdc.fourth2)ThesurfaceofMarsiscoveredin_____.a.rocksb.waterc.grassaa3)TheaveragerecordedtemperatureonMarsis______.a.40℃b.2℃c.-63℃4)OnedayonMarsisabout______long.a.18hoursb.24hoursc.37hourscbPredictthemainideaaccordingtothetitleandthepictures.ReadthepassageandfindoutwhyhumansmightliveonMars.BecauseMarsisrelativelyclosetoEarthandhasanenvironmentlesshostilethanthatofotherplanets.WhydowehavePlanBforEarth?Oneoption—Mars.Why?DifficultiesofexploringMarsHumans’explorationrelatedtoMarsRightnow,Earthistheonlyhomewehave!Paragraph1Paragraph2Paragraph3Paragraph4Paragraph5Workoutthemainideaofeachparagraph.WhydowehavePlanBforEarth?Paragraph1FearSolutionPlanBnuclearmissilesTodayenvironmentalproblemsScientistsarethinkingofwaystolowerthisrisk,suchasreplacingcoalandoilwithformsofrenewableenergy.Buttheyarealsopreparingfortheworst:whatcanwedoiftheterrifyingscenesinfilmssuchasTheDayAfterTomorrowhappeninreallife?CluesfromthepassageHaveyouseenthefilm“TheDayAfterTomorrow”?TheDayAfterTomorrowisa2004Americanscience-fictiondisasterfilm.Thefilmdepictsthecatastrophiceffectsofclimatechange,withextremeweathereventsleadingtoglobalcoolingandanewiceage.WhywehavetochooseMars?Paragraph2CluesfromthepassageWhy？Mars?MarsisrelativelyclosetoEarthMarshasanenvironmentlesshostilethanthatofotherplanets.theMarsDesertResearchStation(火星沙漠研究站）intheUtahdesertoftheUSMarsVillage（火星村）inNorth-westChina'sQinghaiProvinceWhateffortshavewemadetoexploreMars?Paragraph3CluesfromthepassageForonething,wehavebeensendingunmannedspacecrafttoMars,withprobes

sendingbackvaluabledataaswellasstunningimagesandrobotsttestingthesoilandsearchingforresources,waterandsignsoflife.DoyouknowwhateffortsChinahasmade?China'snationalspaceagencylaunchedthespacecraft,calledTianwen-1(天問一號）WhatLaunch:2020.7.23LandonMars:2021.2WhenByonemission,orbiting,landingandroving環視arealltobeacheived.MissionThisisChina'sfirstindependentmissiontoMars.MeaningunmannedmissionsMannedmissionsForanother,spaceagenciesofvariouscountriesareplanningmannedmissionstoMars.China'snationalspaceagencyisexpectedtolaunchthemannedspacecrafttoMarsin2033.WhatdoweneedtosendpeopletoMars?WhatdifficultiesdowehavesendingpeopletoMars?Paragraph4theBiosphere2experiment生物圈2號Wasitpossible?Example?Arizonadesertpeopleanimalsplantsoxygenfoodwater

abetterunderstandingownFornow,Whatcanwedo?Paragraph5So,weneedtotakemuchbettercareofourownplanet—Earth.Cluesfromthepassage1.Clearplatecampaign2.Noplastic(plasticbags,plasticstraws)3.Savewater4.Nolittering5.Saveelectricity6.Recycle1)Whatwasthegreatestfearinthe1960sand1970s?A.Nuclearmissiles. B.Environmentalproblems.C.Exploringspace. D.Pollution.2)WhatdoesPlanBmeaninthepassage?A.ReplacingcoalandoilwithformsofrenewableenergyonEarth.B.Exploringotherplanets,suchasMars,toliveon.C.Educatingthepublictolearntheknowledgeofspace.D.Usingrobotstosearchfornewresources.Readthepassageandchoosethebestanswer.3)WhyMarsisthemostlikelychoicetoliveonforhumans?A.Becausethereisnopollution.B.Becausethereismuchrenewableenergy.C.BecauseitisrelativelyclosetoEarth.D.Becausethereisnorisktolivethere.4)Accordingtothepassage,whichofthefollowingisright?A.ItonlytakesthreedaystoreachMars.B.HumansettlementofMarsispossible.C.ThefirstsettlershavereturnedfromMarssafely.D.TheBiosphere2experimentwasnotasuccess.1)WhydopeoplemakePlanB?EnvironmentalproblemshavetakenoverasthegreatestrisktolifeonEarth.Answerthequestionsaccordingtothepassage.2)IsiteasyforustoliveonMars?ItisnoteasybecauseitwouldtakemonthstoreachMars,travellingthroughdangeroussolarradiation.Eveni