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UnderstandingideasAJourneyofDiscoveryLearningObjectives1.tohaveacomprehensionofthepassage--general&detailedinformation;2.tohaveabasicknowledgeofthediscoveryofevolution;3.totalkaboutDarwin’spersonalitiesandlearnfromhim.IPre-readinghuman
snailfern蕨类植物moss藓类植物earthwormparamecium[ˌpɛrəˈmisiəm]草履虫algae[ˈældʒiː]藻类植物1.Whatspeciesdoyourecogniseinthepicture?evolutionary
tree
birdfrogP66Activity1
zebra
fishlowerformsoflife
higherformsoflife
evolve---evolutioncrab
tortoiseP66Activity1lowerformsoflife
higherformsoflife
evolve---evolution2.Whatfactorscancausetheprocessofevolution?reasonsTheever-changingenvironmentofnature(不断变化的自然环境);populationimmigration;geneticmutation(基因突变)...CharlesDarwinIfafriendofyouiscuriousaboutevolution,whichfamouspersondoyourecommendhimtoknowabout?CharlesDarwinandhisTheoryofEvolutionCharlesDarwin
(1809
–1882)wasanEnglishgeologistandnaturalist.InhisfamousbookOntheOriginofSpecies,Darwinproposedthetheorythatorganisms(individuallifeforms)evolveextremelyslowly.Hestatedthattheorganismsthatwerebettersuitedtotheirenvironmentwouldsurviveandpassontheirfavourablecharacteristicstothenextgeneration,whilethelesssuitableorganismswouldgraduallydieout.Hecalledthisprocess“naturalselection”.What’sthestorybehindDarwin’sdiscoveryofTheoryofEvolution?TurntoP66andsteponDarwin’sjourneyofdiscovery!IIFastreading1.Lookatthepictureandthepassage
title,how
doyouunderstandthetitle?Darwin’sresearchworkleadingtohisdiscoveryofevolutiongenerally:atripfromoneplaceto
anotherplaceliterarily:theprocessbywhichsomethinggraduallydevelops事物逐渐发展的过程HeleftEnglandontheship,theBeagle,in1831.2.Readthepassageandfindoutaboutthetypeofwriting.AnarrativeWhentheBeaglereachedtheGalapagosIslandsin1835,Darwinsawavarietyofnewspecies,…)…IIICarefulreadingLabels
on
a
young
manPara1Hewasnotthecaptain’sfirstchoice.
Hewasayoungmanwhohadleftmedicalschoolwithoutcompletinghisdegree.Hewasadisgracetohimselfandallhisfamily.inthecaptain’seyesin
his
father'seyesin
common
people’s
eyesintroduction:choosethecorrectanswer.1.Whatisthefunctionofpara.1?TopraiseCharlesDarwinToarousereaders’interestsTointroduceCharlesDarwin’sachievementsToinformreadersofCharlesDarwin’slifeWhichofthefollowingstatementsaboutCharlesDarwinisTrue?Darwinwantedtobenefitfromvisitinglittle-knowncountries.Darwinquittedmedicalschoolduetohislackofmoney.Darwin’sfatherwassatisfiedwithDarwin.Darwin’smadeasignificantscientificdiscoverythankstohisadventuresontheshipBeagle.BPara1DPara2askinghimselfaquestioncollectingsamplesCharlesDarwinwasageologistandnaturalist,fascinatedbyrocks,plantsandanimals.Howdiddifferentspeciescometoexist?
OnhisjourneywhowhatPara3howtoprovewhat
Generate
ideasold
ideasnewideasAllspecieshadappearedonEarthatthesametime,andhadnotchangedsince.Animalsevolvedastheyadaptedtotheirchangingenvironments.To
look
for
more
evidencePara4-5
Lookforevidence&Develop
the
ideashowanswerofthatquestionDarwinnoticedfinches’beakshadevolvedaccordingtowhatfoodwasavailableonthatparticularisland.Newspeciesofplantsandanimalsevolvedfromearlierancestors.Para6-7Proposeatheory&Concludewhatpeople'sreactionhowinfluenceAtheoryofevolutionDarwinexplainedthistheoryinhisbook,OntheOriginofSpecies.Manypeoplerefusedtobelieve.Theywereshocked.Later,moreandmorepeoplestartedtobelievehistheory.OntheOriginofSpeciesisregardedasoneofthemostimportantworkseverwritten.IthaschangedideasaboutlifeonEarthforever.summaryforstructurePara.1Para.2Para.3Para.4Para.5Para.6Para.7IntroductionOnhisjourneyGenerateideasLookformoreevidenceDevelopideasProposeatheoryConclusionP69Activity412345samplesoftheplantsandanimalsverysimilartoeachother.cometoexist?Maybeanimalsevolvedastheyadaptedtotheirchangingenvironmentstherewasadifferencebetweenthefinchesoneachoftheislands.hadevolvedaccordingtowhatfoodwasavailableonthatparticularislandhadevolvedfromacommonancestor.arrivedontheislandsalongtimebeforehadevolvedfromlowerformsoflifeP69Activity412-5Thetextisorganizedinorderof______.Para.___Para.___Para.6-7timeBeforethejourneyDuringthejourneySummarize&RetellingAfterthejourneyDarwin’sinterestinvariouslivingthingsmadehimagreatnaturalist.B.Darwin’sjourneyontheBeagleinspiredhis
TheoryofEvolution.C.Darwinwentonajourneytoconfirmhistheorythathumanshadevolvedovertime.pun双关3.Choosethemainideaofthepassageandgiveyourreasons.P68Activity3P69ThinkShare1.
Whyweremanypeople“shocked”byDarwin’s
theory?Atthattime,peoplebelievedthatallspecieshad
appearedonEarthatthesametimeandhadnot
changedsince,butDarwin’stheoryproposed
thatlivingthings,includinghu
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