高中英语选择性必修1优质课公开课Unit 5 Understanding ideas.pdf

新标准《英语》高中选择性必修第一册

Unit5Revealingnature

Understandingideas

Activity1

Lookattheevolutionarytreeand

answerthequestions.

1Whatspeciesdoyourecogniseinthepicture?

Paramecium,earthworm,snail,crab,fish,tortoise,

bird,horse,human,frog...;alga,moss,fern,plant...

2Whatfactorscancausetheprocessofevolution?

Theever-changingenvironmentofnature;environmental

changes;populationimmigration;geneticmutation;

culturalpreferences...

Activity2

Readthepassageandtalkaboutyour

understandingofthetitle.

Activity2

Mostcommonly,peoplebelievethatajourneymeansatripfromone

placetoanother,especiallyoveralongdistanceandliterarilya

journeyreferstotheprocessbywhichsomethinggraduallychanges

anddevelops.ThetitlemayindicatethatDarwin’sresearchwork

leadingtohisdiscoveryofevolutionandtheoriginofspecies

tookquitealongtimeand

greatefforts,determination

andcouragetoachieve.

Activity3

Choosethemainideaofthepassageandgiveyourreasons.

1.Darwin’sinterestinvariouslivingthingsmadehimagreatnaturalist.

2.Darwin’sjourneyontheBeagleinspiredhisTheoryofEvolution.

3.Darwinwentonajourneytoconfirmhistheorythathumanshad

evolvedovertime.

Thetitleofthepassageis“ajourneyofdiscovery”.Sothepassageis

mainlyabouthowDarwin’sTheoryofEvolutiongeneratedand

developedonhisjourneyontheBeagle.

Activity4Numberthepuzzlepiecesinorder.

Organiseinformationfromthepassageandcompletethem.

1OnhisjourneyontheBealge:

1•variousli