Unit2BuildingthefutureExtendedReading课件-高中英语牛津译林版（2020）选修第二册

新牛津译林版高中英语选修二Unit2BuildingtheFuture

ExtendedReadingLead-inOceanWeatherFoodHealthGlobalwarminghasconsequencesinthefollowingaspects:LearningObjectivesBytheendofthissection,studentswillbeableto:1.identifythecrisistheislandersfaceandtheeffortstheislandersmaketofightit;2.appreciatethewritingtechniquesusedinthearticle;3.discussthemeasurestofightglobalwarmingfromateenager’sperspectiveandwriteanessay;4.cultivateasenseofresponsibilityinfightingglobalwarming.IntroductionPara.1:IntroducingthetopicofglobalwarmingMainbodyParas.2–3:Thedisastrous(1)

______________

broughtbyglobalwarmingParas.4–5:The(2)_________

takenbyislanderstosurviveConclusionPara.6:___________peopletofixtheproblemof(3)

climatechangetogetherCallingon/AppealingconsequencesmeasuresActivity1ReadforstrcutureLearning&understandingActivity2ReadfordetailsPara1Sadly,thefactisthattheislandsinthePacific,especiallylow-lyingcoralones,aresufferingtheseriouseffectsofglobalwarming.Q:Whatisthesadfactdescribedinthisparagraph?Learning&understanding____________________

icesheetsandglaciers______________________sealevels________________________waterflowintohousesandoverroadsinterferewithislands’________________________theislands’freshwatersuppliestemperaturesincreasePara2Readfordetailsmeltrisecontaminatenatural

reshapingprogressfreshwaterLearning&understandingPara3

temperaturesincreaseextremetemperaturesextremerainfallpatternscrop_______/reducedfreshwaterreservesthelossof_______strongerandmorefrequent_______________

moreseverefloodingandlandslidesReadfordetailscoralreefdyingfishmovingawayislanders_________failuresoilandhomestropicalcycloneshavinglesstoeatLearning&understanding

ActionsPurposesBuildseawallsfromold

bitsofcoralreefs(1)_______________________________________________________(2)______________________ToholdontosoilPlantmangrovetrees(3)___________________________(4)____________________________________________________________TokeepthedamagingsaltawayfromtheircropsToprotecttheirhomesfromfloodingandstormsurges

CutdownfewertreesGrowcropsincontainersandfindcropsthatdonotmindsaltywaterToprotectthecoastalareasReadfordetailsPara4Learning&understandingWheredotheislandershavetomove?Para5ReadfordetailsSomeofthemmoveupintohills,whileothersarelookingforhomesonnewislands,oreveninnewcountries.Learning&understandingReadfordetailsPara6Whatmessagedoestheauthorwanttoconvey?Learning&understandinghasrisenfromthatincludingbetrappedSummarydisastrousbygreaterwhichSummaryDoyouthinkthephrase“inhotwater”useapun(双关语)here?Whatdoesitmean?Globalwarming:islandsinhotwater*Italsosuggeststhattheislandersaresufferingalot.*Here"inhotwater"createstheimagethattheislandsarebeingfloodedbywarmerandrisingseawatercausedbytheclimbingtemperaturesoftheEarth.Notonlydoesitmakethelanguagevivid,butalsoarousesreaders'concernfortheproblem.AppreciationReadforappreciationDiscussthewritingtechniquesinparahraphs2and3andfillinthetablebelow.

Paragraphs

Techniques

SentencesPara.2(1)_________________

Scientistsexpectsealevelsworldwidemayriseby0.6to1.3metersormoreby2100iftheplanetcontinuestowarm.

...fiveoftheSolomonIslandshavealreadyvanishedbeneaththewavessince1947!Para.3Givingexamples(2)______________________

Providingfigures

Forexample,onthehillyCookIslands,stormshavegivenrisetothelandslidesthatcarryislanders’homesdownthehillsides

Discussion

Whatcouldwedotohelpreducetheeffectsofglobalwarming?Transferring&innovating

Whatcouldwedotohelpreducetheeffectsofglobalwarming?words/phrasesforreference:low-carbonlife；publictransportation；single-use/disposable(一次性的)

；

theemissionofcarbondioxideplasticproductsTransferring&innovatingDiscussionWriting

Writeashortpassagein80wordstoexpressyouropinionsonquestion:Whatcouldwedotohelpreducetheeffectsofglobalwarming?

Para1:ConsequencesPara2:MeasuresPara3:Conclusion/Appeal

Applying&practisingStructure1.Discussingroups(8studentsagroup),polishthesentencesandformapassage.OnestudentisinchargeofwritingOnestudentisinchargeofpresentingTheotherstudentsoffersuggestions.2.Presentation：Representativeswillbeinvitedtoshareyourworkswithus.Applying&practisingPresentationGlobalwarminghasalreadybroughtabouttheriseofthesealevel,thespreadofdiseasesandtheextinctionofspecies.It’sourresponsibilitytolivealow-carbonlifetosavetheearthbeforeitistoolate.Everyoneisexpectedtocultivatetheawarenessofsavingenergyandresources.First,travellingbypublictransportationisaneffectivewaytosaveenergyandreducetheemissionofcarbondioxide.Second,makefulluseofeverydropofwater.Forexample,flushthetoiletwiththeusedwater.Also,trytoavoidusingsingle-useproductslikeplasticbags.Ifyoudousethem,usethemmorethanonce.Allinall,individualscanmakeadifferenceandeverylittlethingcounts!Onepossibleversion处于水深火热中 _________________________三分之一 _________________________注意到某人正在…… _________________________刚要，即将；正要做某事 _________________________遭受全球变暖的严重影响 _________________________海平面 _________________________占据 _________________________增长了……到…… _________________________涨潮时 _________________________水渗入地下 _________________________inhotwateronethirdnoticesb.doingsth.beabouttodosuffertheseriouseffectsofglobalwarming

sealeveltakeupriseby…to…athightideseepthroughthegroundLanguagePoints干扰 _________________________给……造成问题 _________________________冲走 _________________________在其他方面；用别的方式 _________________________作物歉收和淡水储量减少 _________________________导致山体滑坡 _________________________而且 _________________________作为自然屏障 _________________________……的家园 _________________________丰富多样的海洋物种 _________________________interferewithcauseproblemsforsb.washawayinotherwayscropfailureandreducedfreshwaterreservesgiverisetolandslideswhatismoreactasnaturalbarriersbehometoarichdiversityofoceanspeciesLanguagePoints不战而降 _________________________关乎生存的大事 _________________________固定土壤 _________________________绝不 _________________________人类命运共同体 _________________________从大洋那汲取教训 _________________________牵一发而动全身 _________________________齐心协力 _________________________LanguagePointsThePacificOceancoversaroundonethirdoftheEarth’ssurface.Scatteredacrossthisoceanarethousandsofislands.Inrecentyears,thepeopleoftheseislandshavenoticedtidesgettinghigherandstormsgettingworse.Andtheywonder----istheirworldabouttochange?Sadly,thefactisthattheislandsinthePacific,especiallylow-lyingcoralones,aresufferingtheseriouseffectsofglobalwarming.

太平洋几乎覆盖了地球表面的三分之一。上千个岛屿散布在这片海洋上。近年来，这些岛屿上的人们注意到潮水越来越高，暴风雨越来越严重。他们想知道——他们的世界即将改变吗？不幸的是，事实上太平洋上的岛屿，特别是低洼的珊瑚岛，正在遭受全球变暖的严重影响。

LanguagePoints

随着全球气温升高，海平面也在上升。气温上升导致北极和南极的冰盖和冰川融化，向海洋注入更多的水。相比，温暖的海水，较冷的海水还会占据更多的空间，因此随着海洋变暖，海平面会进一步上升。科学家预计，如果地球继续变暖，到2100年，全球海平面可能会上升0.6米至1.3米或更高。在太平洋岛屿上，海平面上升最明显的迹象是，在涨潮时海水涌入更多内陆地区，流入房屋，漫过道路。事实上，海滩甚至整个岛屿正在消失：自1947年以来，所罗门群岛中已有五个岛屿消失在海浪之下！不断上升的海平面还污染了岛屿的淡水供应。当含盐的海水渗入地下、进入水井时，其中的水就无法用于饮用和灌溉。此外，不断上升的海平面还会干扰岛屿的自然重塑过程。通常，海浪逐渐将沙子从岛屿的一侧带走，并将新的沙子堆在另外一侧。但不幸的是，不断上升的海浪加速了这一过程，这无疑会给生活在沙子被冲走一侧的人们带来问题。

助力教与学

与此同时，不断上升的全球气温还有着了其他方面的毁灭性后果。极端气温会产生极端降雨模式。结果是，这些岛屿几个月都没有能让生命得以维持的降雨，导致农作物歉收，淡水储备减少。然后突然一下子来了太多的雨水，宝贵的土壤和家园被洪水冲走。例如，在多山的库克群岛，暴风雨导致山体滑坡，岛上居民的房屋被冲下山坡。此外，每年的热带气旋变得越来越强，发生频率也越来越高，导致更严重的洪水和山体滑坡。更重要的是，随着海洋变暖，许多珊瑚礁正在死亡，它们本来是天然的安全屏障，是各种各样的海洋生物栖息的家园。高温和大气中的二氧化碳会对构建珊瑚礁的珊瑚虫产生不利影响。没有健康的珊瑚礁，鱼类就会离开，岛民的食物就会减少。

尽管面临挑战，岛上居民并没有不战而降。对许多岛上的社区来说，应对气候变化不是一件可以选择做或不做的事情，而是一个关乎到生存的问题。他们正在与科学家合作，学习如何利用旧的珊瑚礁碎片建造海堤，以保护他们的家园免受洪水和风暴潮的侵袭。他们减少砍伐树木，因为树木能保持土壤。他们还种植红树林来保护沿海地区。为了让有害盐分远离他们的作物，他们在容器中种植作物。他们正在寻找可以适应含盐量较高的水的作物。希望他们能找到留在岛上的办法，哪怕只是多留一段时间。However,someislandershavemadealife-changingdecision--movingawayfromtheocean.Itisbynomeanseasyastheoceanhasbeenpartoftheirliv