Unit+6+Survival+Developing+ideas+Reading+课件 【知识精讲精研】高二英语外研版（2019）选择性必修第二册

PlanBLifeonMars?BrandyYangUnit6DevelopingideasWatchandspeakStep1Lead-inWatchavideo,thentelluswhatyoucanlearnfromthevideo.Activity1WatchandspeakStep1Lead-inMarsWhatcanyoulearnfromthevideo?Activity1Activity2HowmuchdoyouknowaboutMars?Step2PresentationPair-workHowmuch

doyouknow

aboutMARS?1Marsisthe______smallestplanetinthesolarsystem.a.second

b.third

c.fourth2

ThesurfaceofMarsiscoveredin______a.rocks

b.water

c.grass3TheaveragerecordedtemperatureonMarsis______a.40°C

b.2°C

c.-63°C4

OnedayonMarsisabout______long.a.18hours

b.24hoursc.37hoursWorkinpairs.CompletethequizandfindouthowmuchyouknowaboutMars?aacbQuizReadthepassagequicklyandmatchthegeneralideaswitheachparagraph.Para.1Para.

2Para.

3Para.

4Para.

5A.WhateffortshavewemadetoexploreMars?B.WhatdifficultiesdowehavesendingpeopletoMars?C.WhydoscientistsputforwardPlanB?D.Whatcouldwedonow?E.WhatisourPlanBforEarth?Ativity3Step3PracticeFast-reading1.Accordingtopara.1,whydoscientistsputforwardPlanB?2.WhatisourPlanBforEarth?3.WhateffortshavewemadetoexploreMars?Activity4

Readthetextagainandanswerthequestionsbelow:Careful-reading

1.Accordingtopara.1,whydoscientistsputforwardPlanB?

Activity4Alladvancedlifeformscouldbewipedoutbynuclearmissiles.Environmentalproblemsarethegreatestrisk.Thinkaboutit.PeoplehavethegreatestfearforsurvivalPlanAPlanB2.WhatisourPlanBforEarth?Exploringotherplanets,suchasMars,toliveon.(para.2)3.WhateffortshavewemadetoexploreMars?

We

havebeensendingunmannedspacecrafttoMars,withprobes

sendingbackvaluabledataaswellasstunningimagesandrobotstestingthesoilandsearchingforresources,waterandsignsoflife.(para.3)

SpaceagenciesofvariouscountriesareplanningmannedmissionstoMars.（para.3)Activity5Discusswithyourpartners:WasitpossibletoliveonMars?Arethereanyexamples?para.4Step4PrductionDiscussion

ThereisnodoubtthathumankindisdrawntowardsMars,withdreamsofmakingitoursecondhome.However,sendingpeopletherewillrequirealltheskill,courageandintelligenceofthehumanrace.WhiletheMooncanbereachedwithindays,itwouldtakemonthstoreachMars,travellingthroughdangeroussolarradiation.AndevenifthefirstsettlersdoreachMarssafely,theymaynotbeabletoreturntoEarth-ever.Stayingalivewillbeadailychallenge,butasprovedbytheBiosphere2experiment,notimpossible.

Asearlyasthe1980s,scientistswerebuildingBiosphere2intheArizona

desert.Itconsistedofaclosedspaceinwhichpeople,animalsandplantscouldlivetogether.

The“closed"conceptmeantthatthespacewasdesignedtofunctionwithitsownoxygen,foodandwater,needingnothingfromtheoutsideworld.Althoughthetwo-yearexperimentwasnotasuccess,itdidprovideuswithabetterunderstandingofhowhumansmightbeabletoliveonanotherplanet.Morerecently,scientistshavesucceededingrowingavarietyofplantsinanenvironmentsimilartothatornMars.Thatdefinitelyisabigstepforward.Activity5theBiosphere2experimentplace----intheArizonadesertconsistedofclosedspace----people,animals,plantscoudlivetogetherwasdesignedtofunction----withoxygen,food,waterabetterunderstandingofhowhumansmightbeabletoliveonanotherplanetpara.4DiscussionWhichoneisbetter?LiveonEarthLiveonMarsorPlanAPlanBActivity6SolveEarth'sproblemsExploreMarsorotherplanetsWhy?Step5ConsolidatoinandevaluationInmyopinion,planAisbetter,whatabouyours?Activity7Workinpairs.ConductaninterviewaboutlivingonMars.1.Decideyourroles.2.SomesamplequestionsaboutlivingonMarareasfollows,whichmaybeofhelptoyou.Andyoucanaddanymoreyoucanthinkof.1）Whatcanyouseefromthewindowofthespacecraft?2）Canyougooutside?3）HowdoyougetfoodonMars?4）WhatdoyoumissaboutEarth?Step5ConsolidatoinandevaluationRole-playshowtimePlanAActivity8Fornow,Whatcanwedo?Weneedtotakemuchbettercareofourownplanet.Step5ConsolidatoinandevaluationPlantmoretreesGarbageclassificationSavewaterSaveelectricityNolitteringNoplasticgroupworkHow?...Step6Assignment

1.Collectmoreinformationfrombooks,magazinesandothersources.2.Makeupaposter:ImaginethelivingactivitiesonMars.Activity9CollectingandwritingThanks

PlanBExploreMarsWhydopeoplemakeplanB?Whatchallengesmightweface?ReasonSolutionsthinkofwaystolowertheriskpreparefortheworstWhatshouldwedo?TakebettercareofourEarthPlanALiveonEarthWhyisMars?Whatachievementshavewemade?fearforthefutureNoplasticNolitteringSavewaterSaveelectricityPlantmoretreesGarbageclassificationPlanB:LifeonMars板书设计BlackboarddesignPlanB:LifeonMars?PlanBExploreonMarsWhydoscientistsputforwardplanB?Whateffortshavewemade?WhyisMars?AFailureWhatshouldwedo?PlanALiveonEarthNoplasticNolitteringSavewaterSaveelectricityPlantmoretreesGarbageclassificationMind-map

TakebettercareofourEarth基础性作业：实践性作业：作业设计Collectmoreinformationfrombooks,magazinesandothersources.Makeupaposter:ImaginethelivingactivitiesonMars.2.Why