高中英语新教材译林牛津版（2020）选修三课件Unit2OutofthisworldProject

Unit2OutofthisworldProject1.Thesun

2.Mercury/ˈmɜːkjurɪ/3.Venus/'viːnəs/4.Earth5.Mars6.Jupiter/ˈdʒuːpɪtə/7.Saturn/ˈsætən/8.Uranus/'jʊərənəs/9.Neptune/ˈneptjuːn/Marsisaratherharshenvironment

nooxygeninitsatmosphereverycoldradiationtheatmosphericpressureinaprotectedenvironmentinaheatedcapsulewithsourceofoxygenProblemsSolutionsBreathableairWaterPowerFoodHarvestoxygeninthesoil

Collecttheburiediceatthesouthpoleofthemoon.

CreatewaterwithoxygenandhydrogenshippedfromtheEarth.

Manufacturesolarcells

Generateelectricityfromthereactionofhydrogenandoxygen

UsenuclearpowerGrowfoodusingchemicalslikecarbon,nitrogenoxygen,hydrogen,etc.Whatifwelivedonthemoon?Wouldn'titbecooltobeabletolive,vacationandworkonthemoon?Let'ssaywedowanttocolonizethemoon.Buttherearesomebasicneedsthatthemooncolonistswouldhavetotakecareof:breathableair,water,powerandfood.Obtainingbreathableair,intheformofoxygen,isfairlyeasyonthemoon.Thesoilonthemooncontainsoxygen,whichcanbeharvestedusingheatandelectricity.Whatifwelivedonthemoon?Wateristrickier.There’snowsomeevidencethattheremaybewater,intheformofburiedicethathascollectedatthesouthpoleofthemoon.Ifso,waterminingmightbepossible.Ifwaterisn'tavailableonthemoon,itmustbeimportedfromEarth.Onewaytodothatwouldbetoshipliquidhydrogenfromtheearthtothemoon,andthenreactitwithoxygenfromthemoon'ssoiltocreatewater.Asaside-benefit,thehydrogencanreactwithoxygeninafuelcelltocreateelectricityasitcreateswater.Whatifwelivedonthemoon?Poweronthemoonisaninterestingchallenge.Itwouldprobablybepossibletomanufacturesolarcellsonthemoon,butsunlightisavailableonlypartofthetime.Asmentionedpreviously,hydrogenandoxygencanreactinafuelcelltocreateelectricity.Nuclearpowerisanotherpossibility,usinguraniumminedonthemoon.Whatifwelivedonthemoon?Foodisalsoaproblem.ThefirstthoughtthatanyoneonEarthwouldhaveis,“Growthefoodonthemoon”usingchemicalslikecarbon,nitrogenoxygen,hydrogen,potassium,phosphorous,andsoon.Togrowatonofwheat,you'llhavetoimportallthechemicalsnotreadilyavailableonthemoon.Oncethefirstcropisin,andaslongasthecolony'spopulationisstable,thenthechemicalscanbereusedinanaturalcycle.Theplantgrows,apersoneatsit,andthepersonexcretesitassolidwaste,liquidwasteandcarbondioxideinthebreath.Thesewasteproductsthennourishthenextbatchofplants.Definitions1.n.finedrypowderconsistingofparticlesofearth,dirt,etc.2.v.removedustfrom(sth.)bywipingVocabularyweb

1.dust

dusty

adj.

dustbinn.

dustern.;

dustn.Definitions1)n.conditionofbeingprotected,keptsafe,etc.2)

n.structurebuilttogiveprotection3)

n.buildingprovidingrefuge,esp.forhomelesspeople4)

v.protectsb./sth.,givesheltertosb./sth.Vocabularyweb

2.shelter

shelteredadj.

shelterv.Definitions1)adj.goingonallthetime;happeningagainandagain2)adj.unchanging;fixed3)adj.firm;faithfulVocabularyweb

1.constant

constancyn.

constantlyadv.

constantadj.

Definitions1)adj.goingonallthetime;happeningagainandagain2)adj.unchanging;fixed3)adj.firm;faithfulVocabularyweb

3.constant

constancyn.constantadj.constantlyadv.Definitionsn.theuseofmoneytogetaprofitortomakeabusinessactivitysuccessful,orthemoneythatisusedVocabularyweb

4.investment

investv.

inventv.;

investment;n.

invitev.

1.Investment1.________inhospitalsisneedednowtomatchthefutureneedsofthecountry.2.Thecrisisstruckthecoreoftheglobalsystem,leavingnocountry________fromitsconsequences.2.sheltereddust,constant,invent,shelter,invest3.dusty4.Shethought________aboutherfamily;shemightneverknowwhathadbecomeofthem.3.Historyismuchmorethanthestudyof________oldobjectsandeventslongpast．5.Beforebricks________,peoplebuilttheirhousesofwood.4.cons