Unit 5 Revealing Nature Understanding ideas （A Journey of Discovery ）ppt课件-（2019）新外研版高中英语选择性必修第一册.pptx

1、Learning aims:Learning aims:AfterAfter class, you will beclass, you will be able to :able to :comb, summarize and describe thejourney of discovery according to themind map drawn by yourself.experience Darwins scientific spiritand his excellent personalities byanalysing the information in thepassage

2、.Human beings are _. But, many experts arequestioning the process of _.More information can bedisplayed by the _tree.Evolutionary treeEvolutionary treeangiospermangiospermgymnospermgymnospermtortoisetortoisealgaealgaecrabcrabsnailsnailfernfernmossmossroundround wormwormearthwormearthwormcoelenterate

3、coelenterateparameciumparameciumalgaealgaemonamonad dRead for the main ideaRead for the main ideaa trip from one place to another placethe process of discovering his Theory of Evolution双关Read for detailsRead for detailsDarwin at young age:Darwin at young age:Not completing his degree.“A disgrace to

4、yourself and all your family”.？The captain of the ship, the Beagle, wanted someonewho would “profit by the opportunity of visiting distantcountries yet little known.”A.money people can make B. advantage people will getThe author didnt mention the young mans name in order to _ON HIS JOURNEYDarwin stu

5、died_He noticed that some species of aNumber&nimals were_.completetheput forwardPROPOSE A THEORYThe theory of Evolution : living things, including humans _DEVELOP IDEASDarwin suspected that the finches_and ithad_puzzle_Reading tips:Guesss themeanig ofproduce /haveGENERATE IDEAS LOOK FOR MORE EVIDENC

6、EDarwin asked :On the Galapagos Islands:new wordsHow did different sp He noticed_.ecies _.It seemed the beaks _ .ON HIS JOURNEYDarwin studiedvarious living things. his room was was crowdedcrowded with samples with samples .He noticed that some species of animalswerevery similar to .Number&produce /h

7、aveLOOK FOR MORE EVIDENCEGENERATE IDEASIt was the birds that interested him.？completetheHe noticed .a differenceDarwin asked :between the finches .How did differentIt seemed the beaks hadspecies come to exist?puzzleevolved .food . available.animals evolved.put forwardPROPOSE A THEORYDEVELOP IDEASDar

8、win suspected that the finches had evolvedfrom.and it had slowlyevolved into new. living things. had evolved fromlower forms of life.It wasnt published until 1859 andimmediately causedcaused a a stormstorm.species.ThinkThink & & ShareShare1) Why Darwin didnt publish his Theory of Evolution until 185

9、9?2)Why were so many shocked by Darwins Theory of Evolution?3) Can you imagine what challenges he met during the journey?CultureCulture backgroundbackgroundChallengesChallenges hehe met during the journeymet during the journeypressure from societySocial factorSocial factor : :Natural factor:Natural

10、factor:Personal factor:Personal factor:some natural disasters such astsunami and earthquakesuffer kinds of diseases&serious seasicknessIf his father were still alive, what would he say to Darwin?Think further :Think further : What contributed to his success ?All of us are on the journey of life.We a

11、re born with the good qualities Darwin has .We just need to waken them and keep them awake!Keep exploring! Keep questioning! Keep thinking!Wish all of you a good journey of life.AssignmentAssignment必做： Write a summary of the passage about 60 words.选做： Do a research:How will the human species evolve in the future?