新选择性必修二UNIT6SURVIVALPERIOD3DEVELOPINGIDEASANDPRESENTINGIDEAS课件

外研版英语选择性必修第二册

Unit6SurvivalPeriod3

DevelopingideasandPresentingideasHaveaquizaboutMars1.Marsisthe____smallestplanetinthesolarsystem.a.secondb.thirdc.fourth2.ThesurfaceofMarsiscoveredin________.a.rocksb.waterc.grass3.TheaveragerecordedtemperatureonMarsis____.a.40o

C

b.2o

C

c.-63o

C

4.OnedayonMarsisabout_________long.a.18hoursb.24hoursc.37hoursSuggestedanswers:

1._____;2._____;3._____;4._____

aa

cbDevelopingideas

WorkoutthemainideaofeachparagraphConsideringgreatriskstolifeonEarth,human'sPlanBforEarthisputforward.HumanschoosetoexploreMarstoseeifwecoudliveonit.HumanshavemadeeffortstolandonMarsforresearches.InordertomakeMarsasecondhome,humanshaveconductedexperimentsabouttheenvironmentssimilartothatonMars.BeforehumansettlementofMars,weshouldprotecttheearthbetter.Readingcomprehension1.Fromwhichofthefollowingmagazineswouldthepassagemostlikelybeexcerpted?Giveyourreasons.A.TheTravellarB.AllAboutSpaceC.EnvironmentalConcernsD.BiologyforFunSuggestedanswer:________.Yourreasons:

BInordertosurvive,humansbeganaseriesofexplorationstoMarsandmadesomeprogress.Sothisarticleshouldbetakenfromamagazineaboutspace.

Readingcomprehension

Choosethestatementsthatcanbeinferrdfromthepassage.A.HumanshaveyetnotvisitedMars.B.PeoplewanttogotoMarsonholiday.C.ThereareplantsgrowingonMars,D.ThegreatestrisktolifeonEarthusedtobenuclearmissiles.E.Oneday,humanswillhavetogoandliveonanotherplanet.F.OurPlanAincludesdevelopingrenewableenergyresources.G.TheBiosphere2experimentendedinfailure.Suggestedanswer:_______________

A,D,E,GInference&EvidenceA.➞Oneoptionistoexploreotherplanetstoseeifwecouldliveonthem.D.➞Inthe1960sand1970s,thegreatestfearwasthehumanrace,andpossiblyalladvancedlifeformsontheplanet,couldbewipedoutbynuclearmissiles.E.➞ThereisnodoubtthathumankindisdrawntowardsMars,withdreamsofmakingitoursecondhome.Fornow,humansettlementofMarsisstillaway.

G.➞Thetwo-yearexperimentwasnotasuccess,itdidprovideuswithabetterunderstandingofhowhumansbeabletoliveonanotherplanet.Postreading:

Thank&Share1.WouldyouliketobeoneofthefirstpeopletoliveonMars?Whyorwhynot?2.Whichisbetter,toliveonMarsortosolveEarth'sproblems?Why?No.ItishardtosayiftheconditionsonMarsaresafeandproperforhumanbeingstoliveonit.IthinkthatitisbettertotrytosolveEarth'sprblems.Ontheonehand,Earthistheplacewherelifebegan,wherelifehaslivedforbillionsofyears.Ontheotherhand,itiseasierandsaferforustoprotectandsaveourplanetthantomovetoanotherdistantplanet.

Thank&Share

3.Canyouthinkofa“PlanC”tosavepeoplefromtheproblemsonEarth?

AllcountriesgettogethertocreatetheCommunityofSharedFutureforMankind.Inpursuingitsowndevelopment,anycountrypromotesthecommondevelopmentofallcountries.Allshouldbeawarethatthereisonlyoneearthformankindandallcountriesliveinoneworld.

Countriesshouldrespecteachotherandtreateachotherasequals,pursuewin-wincooperationforcommondevelopment,ensurethesecurityofcommoncomprehensivecooperationandsustainabledevelopment,andpromoteinclusiveexchangesandmutuallearningamongdifferentcivilizations

Thank&Share

4.Whatthemedothetworeadingpassageinthisunithaveincommon?Onwhataspectsdoeseachpasagefocus?Theyarebothabouttheproblemofsurvival.Thefirstpassagefocusesonthesurvivalcrisisofanimalswhilethesecondpassageconcentratesuponthesurvivalofhumanbeingsandtheeffortspeoplehavemade.HowtoliveonMarsConductaninteriewSanddunesandstonesarewidespread,butduststormsstopsmefromseeingnothing.Itisextrememlyhardtogooutofthecraft.manyunknownrisksoutsidemayoccur.Wedependuponinstandfoodforaliving.Theready-to-usefoodwerecarriedwithusbycraft.

ComparedtoMars,Earthisreallyaparadise--aperfectplacetoliveforallthelivings.ReturningtoEarthBeforewritingIt'saweeksincetheotherastronautsleftMarsandwentbacktoEarth1.Whereisthepersoninthestory?

HeisonMars.◎

Iwascaughtinaduststormandlostcontactwiththem.◎

Thecapsuleispoweredbyasmallnuclearplant.Itmighthavejustenoughelectricityfor8months,ifnothinggoeswrong...◎NowIamworriedaboutfood.Thereisonlyenoughforonepersonfor4months...2.Whatdifficultiesishefacing?

HewasleftaloneonMars;losingcontactwithothers;electricityfor8months;foodforonepersonfor4months◎

Afterresumingcommunicationwiththebasefivedayslater,Iwasinformecthatitwillbe8monthsbeforearescuemissionarrivesfromEarth◎

Waterandoxygenweremybiggestworriesatfirst,butI’vediscoveranundergroundicedepositnearby.3.Whathashealreadydonetostayalive?Hehasresumedcommunicationwiththebase.What'smore,he'sdiscoveredanundergroundicedepositnearby.4.Whatwillhedonext?HemustworkouthowtofarmonMars.Writing:

Howtosurviveadangerousplace

Shareyoursurvivalstorywiththeclass

Forme.itisnotadreambutalonelyislandIamlivingon.Facedwithatropicalheat,Imustfinddrinkingwaterwithinhours,orhewillbecomeapieceoffrywoodbeforeleavingheresafely.Withoutwater,anyonemaysurviveforonlythreedays.Withoutfood,heorshecanonlysurviveforthreeweeks.Surroundedbybeautifulcoralreefs,Ihavetomakenetsorfishhookstocatchfish,butIalsohastoavoidthedeadlysharksthatinhabittheisland.Inaddition,Ihastomakeafiretobuildpropershelterstohidefromdangerslikepoisonoussnakes.

Ican'tonlywaittobesavedItiscrucialformetolearnhowtomakefireandgetsomethingtodrinkandeatassoonaspossible.Luckily,Imanagetohavethefirsttastymealontheisland.Lookingattheshiningstars,Iamconfidentthattomorrowisastrugglingbutmeaningfulday.

Thegreenlizards'survival1.Whathappenedtothegreenlizards?Theywereintroublebecauseatougherspecies,thebrownlizards,wereintroducedfromCuba.Thelizardsdidn'thaveenoughfood.Underthepressurefromthenewarrivals,theymovedhighterupthetrees.2.Whatisthemainmessageofthetext?

Animalschangethemselvestoadapttothechangesintheirenvironment.WorkingroupsTalkabouthowtoadapttothechangesintheenvironmentandofferevidence.1.Thegiraffe'sneckgetslongerandlongerinordertoeatthehighleaves.2.Theseedsofdandeliousaregettinglighterandlighter,andtheflowersareblowinginthewindtobewplacestogivebirthtonewlife.Workingroups1.Toseefurther,humansbegantowalkupright.2.KingWenwasimprisonedinYouli,sohededuced“thebookofChanges”.3.WhenConfuciouswasintroubleinthestagesofChenandCai,hewroteChunqiu.4.QuYuanwasexiledbyKingHuai,sohewroteLiSao,ZuoQiumingwasblind,thisjusthadGuoyu;SunBinsufferedfrombintorture,sohestudiedtheartofwar.

Languageappreciation

1.Oneoptionistoexploreotherplanetstoseeifwecouldliveonthem.•[句式分析]

“t