Unit 5 Into the wild Understanding ideas （ppt课件）-2024新外研版（2019）《高中英语》必修第一册.pptx

1、Unit 5 Into the wild-Understanding ideas migrate/magret/Pre-readingWatch and think:1.Skim and match the main ideas with each part.b)ThedefinitionandbackgroundofthemonarchsmigrationParagraph1-2Paragraph3-4Paragraph5a)Themysteryofmonarchsmigration&influencesofhumanactivitiesc)Thesolutiontomonarchssurv

2、ivalContent4 mins1.Title,beginning&ending2.images,charts,tables3.First and last sentences of paragraphsSkimming tips:Skimming:Main ideasHow to skim?如何略读？如何略读？1.TitleBeginning&Ending2.images,charts,tables3.First and last sentences of paragraphsSkimming:Main ideas&Structure1.Skim and match the main id

3、eas with each part.b)ThedefinitionandbackgroundofthemonarchsmigrationParagraph1-2Paragraph3-4Paragraph5a)Themysteryofmonarchsmigration&influencesofhumanactivitiesc)ThesolutiontomonarchssurvivalContent4 mins1.Title,beginning&ending2.images,charts,tables3.First and last sentences of paragraphsSkimming

4、 tips:文体：Expository Writing 科普类说明文Skimming:Main ideasManyanimalsmovefromoneplacetoanotheratcertaintimesoftheyear.Thisannual movementiscalledmigration.Theymigratetofindfood,seekapartner,orin search of warmerweather.OneofthemostwonderfulmigrationsinnatureisthatoftheNorthAmericanmonarchbutterfly.Para.1

5、1 1Definition&BackgroundPara.1-2Mystery&InfluencePara.3-4Solution Para.5ScanPara.1andanswerthefollowingquestions:How to scan?Findthekey words inthequestion,andlocatetheminthearticle.Definition&BackgroundPara.1-2Mystery&InfluencePara.3-4Solution Para.5About the journey:When do the monarchs start to m

6、igrate?Where do the monarchs migrate?ScanPara.2andanswerthefollowingquestions:1.5 minsHow to scan?Findthekey words inthequestion,andlocatetheminthearticle.When?-AutumnWhere?-CaliforniaorMexicoCheck your answersHow domonarchsmigrate?Whatistheproblemthatmonarchsarefacing?Whydoestheproblemoccur?Definit

7、ion&BackgroundPara.1-2Mystery&Influence Para.3-4Solution Para.53 minsPara.3 Complete the cause-effect(因果因果)flow charts.Scanning:How do monarchs migrate?因果关系因果关系流程图流程图the time of day the way to gothe position of the sun the places where it will spend the winteracbcauseeffectScanning:Why does the mona

8、rch population decrease?cut downnatural environment of many placeskill the plantshas crashedegfcauseeffectPara.4 Complete the cause-effect(因果因果)flow charts.Definition&BackgroundPara.1-2Solution Para.5Mystery&InfluencePara.3-4What measures do people take to help protect the monarch butterfly?Scanning:Detailsu What other factors that destroy the monarchs habitat.uWhat can people do to help protect the monarch butterfly?deforestationexhaust emissionurbanizationforest fireoverpopulationfood shortagefactorsWhat can people do to help protect the monarch butterfly?16