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OurlivingplanetExtendedreadingLearningObjectivesBytheendofthissection,studentswillbeableto:1.summarizethemainideaofthesciencemagazinearticle;2.graspthewritingtechniqueofusingspatialordertodescribethings;3.identifytheeffectofpresentingthedepthsoftheEarthintheformofacomicstrip;4.criticallyanalysethemeasureofdrillingahoolethroughtheEarth’scrustandintothemantle;5.appreciatethescientificspiritofscientists.WhatdoyouknowabouttheinsideoftheEarth?WhatistheinsideoftheEarthmadeupof?AndWhatarethefeaturesofeachpart?TheEarthiscomposedofthreelayers:thecrust,mantleandcore.Crust(地壳)Mantle(地幔)Innercore(内核)Outercore(外核)Core(地核)athinlayerofrockontheEarth'ssurfacehot,slow-movingrockbelowthecrustandsurroundingthecoreextremelyhot,liquidironmixedwithothercomponents,coveringasolidcentre,whichistheinnermostpartoftheEarthPreviewLookthroughthearticlequicklyandcompletethefollowingtableaboutitsoutline.ReadforstructureInsidetheEarth
Para.1:IntroductiontothetopicofstudyingtheinsideoftheEarthPara.2:The__________ofstudyingtheinsideoftheEarthPara.3:Theother__________ofstudyingtheinsideoftheEarthPara.4:The_______________________ofstudyingtheinsideoftheEarthchallengesbenefitsimportance/significanceInquiryReadandfinishthetasksasquicklyaspossible.ReadParas.1&2andanswerthefollowingquestion.Readfordetails1.HowdoscientistsknowsomuchabouttheEarth'smake-up?2.WhatchallengesmayscientistsfacewhenexploringtheinsideoftheEarth?Possibleanswer:ScientistsknowsomuchabouttheEarth'smake-upbyanalysingearthquakewavesanddrillingverydeepholes.1.HowdoscientistsknowsomuchabouttheEarth'smake-up?2.WhatchallengesmayscientistsfacewhenexploringtheinsideoftheEarth?ReadPara.3andfillinthetablebelow.excitingpossibilitiesforlifeabovegroundhelpsolvethestorageproblemofhydrogencastlightontheoriginofliferelyingonenergyfromcertainrocksPossibleanswer:Readthecomicstriponpage12andfillinthefollowingtables.Possibleanswer:4metresThedeepestknowntreerootsThedeepestundergroundlaboratoryAttheplacewherediamondswereformedInthelowermantleAtthecentreoftheEarth§Howisthecomicstriporganized?Itisorganizedinspatialorder,fromthesurfacetothecentre.1.Whatisthefunctionofthepicturesusedinthecomicstrip?Picturesgrabthereader'sattention,explaindifficultconceptsandhelpthem
understandthetextbetter.2.Whatarethe
effectsofthespeechbubblesinthecomicstrip?Speechbubblesareavisualmeansofconveyingwordsspokenbycharactersinacomicstrip.Thesebubblesareclearlyidentifiableasdrawnshapescontaining
wordsarelocatednexttothespeakingcharacter.Inordertocommunicatethepropermeaningandnottoconfusethereader,theillustratormustcarefullychooseandplacethem.Speechbubblesareusedtohelpconveythetoneofthedialoguetothereaderandbringthecomicstriptolife.2.Analyzethestructureofthecomicstrip.1.WhatqualitiescanwelearnfromthescientistswhoaretryingtodrillaholethroughtheEarth’scrustandintothemantle?
2.DoyouthinkitiswiseforscientiststodrillaholethroughtheEarth'scrustandintothemantle?Whyorwhynot?P12B-CPossibleanswer:1.Despiteallthesechallenges,scientistshavenevergiveup.Theyshowgreatdiligenceintheirwork.Theirdeterminationanddevotiontothecauseofscienceenablethemtocontinuewiththeirwork.2.Yes,Ithinkitisagoodideabecauseunderstandingwhatliesbeneathourfeetcouldhelpussolvemanyissuesaboveground.Forexample,earthquakesandvolcanoesoftenspellenormousdisastersforus.IfscientistsareabletolearnmoreaboutwhattheinsideoftheEarthislikeandbetterunderstandhowthesenaturaleventsoccur,thei
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