初中英语人教版八年级上册moving to Mars.docx.docx

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1、MovingtoMarsAtthemoment,itmaybedifficulttoimagine,butmanypeoplebelievethat,bytheyear2100,wewillliveontheplanetMars.Ourownplanet,Earth,isbecomingmoreandmorecrowdedandpolluted.Hopefully,wecanstartagainandbuildabetterworldonMars.Hereiswhatlifecouldbelike.Firstofall,transportshouldbemuchbetter.Atpres

2、ent,ourspacecraftsaretooslowtocarrylargenumbersofpeopletoMars—ittakesmonths.However,by2100,thetripmighttakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight!Humansneedfood,waterandairtosurvive.ScientistsshouldbeabletodevelopplantsthatcangrowonMars.Theseplantswillproducethefoodandox

3、ygenthatweneed.However,itisnotsureiftheseplantscouldproducewater.Gravity(重力)willbeaproblemfortheearlysettlersonMars.ThegravityonMarsisonlyaboutthree-eighthsofthegravityonEarth.Thiswillbedangerousbecausewecouldeasilyjumptoohighandfloatawayintospace.Topreventthis,humansonMarshavetowearspecialbootst

4、omakethemselvesheavier.Thesebootswillprobablybecomeveryfashionableandtherewillbemanydifferentdesignsforsettlerstochoosefrom.LifeonMarswillbebetterthanlifeonEarthinmanyways.Peoplewillhavemorespace.Livinginahousewith10bedroomsishighlypossible.Manypeoplebelievethatrobotswilldomostofourwork,sowewillh

5、avemoretimeforourhobbies.TherewillprobablybenoschoolsonMars.Everystudentwillhaveacomputerathomeconnectingtoaninter-planetcomputernetwork.Theycanstudy,dotheirhomeworkandtakeexamsinonlineschools.Eachstudentwillalsohavetheirownonlineteachercalled'e-teacher'.However,insomeways,lifeonMarsmaynotbebette

6、rthanlifeonEarthtoday.Foodwillnotbethesame.Mealswillprobablybeintheformofpillsandwillnotbeastastyastheyaretoday.Also,spacetravelwillmakemanypeoplefeelill.ThespaceshuttlestravelfastbutthetriptoMarswillprobablybeveryuncomfortable.