Unit1OurlivingplanetExtendedreadingProject課件高中英語(yǔ)譯林版（2020）選修第一冊(cè)

Unit1OurlivingplanetP5ExtendedreadingInsidetheEarthWhatdoyouknowabouttheinsideoftheEarth?WhatistheinsideoftheEarthmadeupof?AndWhatarethefeaturesofeachpart?Crust(地殼)Mantle(地幔)Innercore(內(nèi)核）Outercore(外核)Core(地核)athinlayerofrockontheEarth'ssurfacehot,slow-movingrockbelowthecrustandsurroundingthecoreNowlet'sreadthearticleandcomicstripfromasciencemagazineabouttheinsideoftheEarthtolearnmoredetails.ReadforstructureInsidetheEarthPara.1:Introductiontothetopicofstudyingthe________________oftheEarthPara.2:The__________ofstudyingtheinsideoftheEarthPara.3:Theother________ofstudyingtheinsideoftheEarthPara.4:The______________________ofstudyingtheinsideoftheEarthchallengesbenefitsimportance/significanceinternalstructureWriteasummaryofthesciencemagazinearticle.Usethefollowingideastohelpyou.?TheEarth'sinternalstructure?WaystolearnabouttheinsideoftheEarth?ChallengesofstudyingtheinsideoftheEarth?BenefitsofthestudyP12AStep3Reading

AnswerthequestionsbelowaccordingtothearticleonP11.(1)WhatarethewaystolearnabouttheinsideoftheEarth?Analyzingearthquake

waves

anddrillingverydeepholesintotheEarth.

(2)WhatarethechallengesofstudyingtheinsideoftheEarth?TheEarth’sintensepressureandheat,aswellasthedifficultyinchoosingtherightplacetodrill.(3)WhatarethebenefitsofstudyingtheinsideoftheEarth?ItnotonlyenablesustogainabetterunderstandingofthegeologyoftheEarth,butalsoopensupmanypossibilitiesforlifeaboveground.Possibleanswer:4metresThedeepestknowntreerootsThedeepestundergroundlaboratoryAttheplacewherediamondswereformedInthelowermantleAtthecentreoftheEarth123430,000metres750,000metres2.9millionmetres6millionmetresPressure◆Itislike131elephantsformingatowerontheirheadandtheygeta

headache.◆Itseems3,280elephantsstandingontheirhead.◆Itseemsthereareabout17,000elephantsbalancedontheirhead.◆Itseemsover47,000elephantsontheirhead.Step3ReadingStep3ReadingStep3ReadingStep3ReadingHomework1.Dictatethenewwordsandexpressions.2.FinishExxonQP.PartConPage58:1.Hardlydoesheplaygamesinhisleisure/spare/freetime.2.Undernocircumstancesshouldyougiveawaythissecrettoothers.3.Analysingyourstrengthsandweaknesses

accountfor

betterunderstandingofyourself.4.Thelastcenturywitnessedgreatprogressinthefieldofmedicine.5.

Doyouknowwhoseexperimentcast

/throwlightontheconnectionbetweenlightningandelectricity?6.

Thecitygovernmentsparednoeffort/makeeveryendeavour

to

increase/arousepublicawarenessofenvironmental

protection.7.Uponhearingthenews,shewashappyandworriedinequalmeasure.8.Ithasbeenuniversallyacknowledged

that

materialwealthcannotguaranteehappiness.Unit1OurLivingPlanetProjectUnusualNaturalPhenomenaLead-inStep1Enjoyasmallvideoofunusualnaturalphenomenaandtellushowyoufeelaboutthem.polarlightsHowdoyoufeelwhenyouseethesepictures?akindofnaturalphenomenonDoyourresearchandfindoutrelevantinformation.UsetheexampletohelpyoutomakeyourPPTslides.Atanygivenmoment,thesunisejectingchargedparticlesfromitscorona,orupperatmosphere,creatingwhat'scalledthesolarwind.WhenthatwindslamsintoEarth'supperatmosphere,theaurora

/???r??r?/

極光isborn.PolarLightsMoonbowMoonbowsorlunarrainbowsarerarenaturalatmosphericphenomenathatoccurwhentheMoon’slightisreflectedandrefractedoffwaterdropletsintheair.VolcanicLightningVolcaniclightningisanelectricaldischargecausedbyvolcaniceruptions.Volcaniceruptionsor"dirtythunderstorms"becauseoficeformationandmoistconventionoftendrivestheeruption-plume/columndynamic,whichultimatelytriggersvolcaniclightning.SailingStonesThesailingstones,orslidingstones,atDeathValley,havebeenobservedandstudiedsincetheearly1900s.Itwaslongthoughtthatstrongwindspushedthestones.Morefancifultheoriesinvolvedmagneticfields.BlueVolcanoExposedtotheoxygenpresentinairandsparkedbylava,thesulfur

硫磺burnsreadily,anditsflamesarebrightblue.GreenSandBeachAspecial,raretypeofvolcaniceruption

bringsthegreenolivinecrystalsuptothesurface.Wheninteractingwiththecoldoceanwater,theyshattersintotinypieceswecallsand,thusformingthisextraordinarygreensandbeach.Whatarethetypicalcharacteristicsaboutnaturalphenomena?naturalphenomenonobservablemysteriouscausepowerfulrareWhatnaturalphenomenadoyouknow?naturalphenomenonmoonbowKarstlandformvolcaniclightinggreensandbeachredcrabmigrationsolareclipseredcrabmigration…PreparingandresearchingStep2Ifyouaregoingtointroduceonenaturalphenomenontoyourclassmates,whatnaturalphenomenonwillyouchoose?Why?PreparingandresearchingStep2Whataspectscanyouresearchthechosennaturalphenomenon?naturalphenomenonWhatitisWhenitoccursWhereitoccursWhatthepossiblecausesareSearchforinformationfromdifferentresources.Wherecanwegetspecificinformationweneed?InternetLibraryMagazinesNewspaperWeChat

subscriptionsBooks…Tips：checkthedateoftheinformationyoufind,whetherprintedoronline;checkthesourceoftheinformationyoufind.Generallyspeaking,informationfromofficialsourcescanbetrusted,suchasauthoritivewebsite.Let'stakemirageforexample.PreparingandresearchingStep2Preparingandresearching1

Step2Pleasereadthe

example

inthetextbookandfindoutthebasicfeaturesofthePPTslides.?Thelanguageisclearandconcise,andstressesthekeypointslogically.?Thepicturesareclearandmatchthecontentsproperly.?Thelayoutisneatandbeautiful,andtheoverallstyleisconsistent.*Arrangethecontentslogically.*

Usekeyphrasestodescribesomeaspects.*Userelatedpicturesor