Unit 6 Developing ideas示范公开课教学课件【高中英语外研版选修3】

Unit6NatureinwordsDevelopingideasActivity1FactsaboutDDT:•DDTwasfirstproducedin1874andwaslaterusedaspesticide.•Itstaysintheenvironment.•Itishighlypoisonoustolivingorganism,includinghumans.•Nowbannedinmanycountries,itisstillusedinsomeformalariacontrol.Lookattheinfographicbelowandanswerthequestions.Activity11HowdoesDDTreachthehumanbodyinthefoodchain?WhenDDTissprayedontoplantsinordertokillinsects,itisabsorbedbytheplantsandsubsequentlyconsumedbyanimals;humansinturneatthoseanimals.DDTalsoleaksthroughthesoilandintoriversandlakes,whereitcontaminatesfishconsumedbyhumans.2WhatharmdoesDDTcause?DDTishighlypoisonoustolivingorganism,includinghumans.Activity2ReadthebookreviewonSilentSpring,abookthatledtothebanningofDDT.Predictwhatwillbementionedinthepassage.Activity2ItisabookreviewonSilentSpring,sothefollowingpartsmaybementionedthisthispassage:1)basicinformationaboutthebook,includingtheauthor,yearofpublication,themeandmainidea;2)thereasonwhythisbookispublished;3)featuresofthewriting;4)commentsonthisbook;5)influenceofthisbook.Nowreadthepassageandcheckyourprediction.Activity3OrganiseinformationfromthepassageandcompletethenotesaboutSilentSpring.1962thedamagingeffectsofhumanactivitymoreresponsible,limitedandcarefullymonitoredscientificinformation,examplesandresearchbeautifulandelegantThepesticideindustrydefendherclaimsTheuseofDDTPresidentialMedalofFreedomenvironmentalawarenessActivity3Nowworkinpairs.Talkaboutwhichaspectsofthebookreviewmakeyouwanttoreadthebook.Think&Share1WhywasSilentSpringsosuccessful?SilentSpringwassosuccessfulbecauseitalertedthegeneralpublictothedangersofDDT.Itplantedimportantnewideasinthepublicmind,suchasthatsprayingchemicalstocontrolinsectpopulationshasanimpactonotherwildlife,andthatthechemicalsgotintothefoodchain.2Whatisthemorallessonbehind“AFableforTomorrow”?Themorallessonisthatfinancialprofitshouldnotcomeattheexpenseoftheenvironmentandthecreatureslivinginit.Think&Share3WhydidsomepeoplechallengeCarson’sfindings?SomepeoplechallengedCarson’sfindingsbecausetheywereconcernedaboutthenegativeimpacttheywouldhaveonbusinessinthepesticideindustry.Think&Share4InwhatdifferentwaysdoFirstSnowandSilentSpringraisepeople’sawarenessofnature?FirstSnowshowsthebeautyofnature—andinparticularthesnow—throughitswordsandimagery,whileSilentSpringdescribesanunnaturalspringwithoutthebeautyofbirdsong.Theyeachraisepeople’sawarenessofnaturebyhighlightingtheinterplaybetweennatureandhumanbehaviour.Activity41ReadthepassageagainandmakenotesaboutRachelCarson’scontributionstoenvironmentalprotection.Considerthefollowing:•hermostinfluentialwork•whatpointsshetriedtomake•difficultiesshemetwith•herpersonalqualitiesWorkingroups.WriteanawardspeechforRachelCarson.Activity42RachelCarsonreceivedherPresidentialMedalofFreedomposthumouslyin1980.ReadtheexcerptfromPresidentCarter’sawardspeechandnotethelanguagefeatures.Neversilentherselfinthefaceofdestructivetrends,RachelCarsonfedaspringofawarenessacrossAmericaandbeyond.Alwaysconcerned,alwayseloquent,shecreatedatideofenvironmentalconsciousnessthathasnotebbed.Activity43Writeyourownawardspeechofabout100wordsandshareitwiththeclass.Nowthinkaboutyourperformanceingroupdiscussion.WereyouabletomakeanobjectivejudgementaboutRachelCarson?Activity5Whichpoem…abc…usesitsshapetohelpconveymessage?…hasrhymingwordsattheendoflines?…usesmetaphor?…usessimile?…usespersonification?√√√√√√√Readthepoemsandtickthecorrectbox(es)foreachquestion.Activity6Thinkaboutwordsandexpressionsrelatedtonatureandaddthemtothemindmap.Activity7•whatyourpoemwillbeabout•whatkindofpoemyouaregoingtowrite•whatfiguresofspeechyouwilluse•whatwordsyoucanuseforthatrhyme(ifusingrhyme)Workinpairs.Planapoem.Considerthefollowing:Activity7Thereoncewasaboywhothought,Hecouldeatallthesweetshehadbought.Hegobbledthemdown,Thenstartedtofrown,’Causehe’deatenmorethanheought.Nowwriteyourpoem.Activity8Workinpairs.Makeimprovementstoeachother’spoemsandsharethemwiththeclass.NowdiscussthesimilaritiesanddifferencesbetweenChineseandEnglishpoems.Thankyou!敬请各位老师提出宝贵意见！Goodbye！