Unit6Developingideas课件-2021-2022学年高中英语外研版选择性必修第三册

Unit6NatureinwordsSilentSpringUnderstandthetextandtheauthor'sevaluationofRachelCarson.ConsiderthemessageofSilentSpringanditsimplicationsforsociety.Understandthethemeofthetext,deepentheunderstandingoftheunittheme,thinkabouttheimpactofhumanactivitiesonthenaturalenvironment,andimprovetheawarenessofprotectingnature.Do

you

know

infographic?

Why

we

use

infographic?Aninfographicisacollectionofimagery,charts,andminimaltextthatgivesaneasy-to-understandoverviewofatopic.ProvideaquickoverviewofatopicExplainacomplexprocessDisplayresearchfindingsorsurveydataSummarizealongblogpostorreportCompareandcontrastmultipleoptionsRaiseawarenessaboutanissueorcauseInfographicsaregreatformakingcomplexinformationeasytodigest.Theycanbehelpfulanytimeyouwantto:Whyareinfographicsused?Lookattheinfographicbelowandanswerthequestions.FactsaboutDDT:DDTwasfirstproducedin1874andwaslaterusedaspesticide.Itstaysintheenvironment.Itishighlypoisonoustolivingorganism,includinghumans.Nowbannedinmanycountries,itisstillusedinsomeformalariacontrol.DDT：achemicalcompoundthatwasoriginallydevelopedasaninsecticide.Ithasnocolour,tasteorodour(气味).ItsagriculturalusewasbannedintheUSin1972becauseofitsdamagingeffectsontheenvironment.1HowdoesDDTreachthehumanbodyinthefoodchain?WhenDDTissprayedontoplantsinordertokillinsects,itisabsorbedbyplantsandsubsequentlyconsumedbyanimals;humansinturneatthoseanimals.DDTalsoleaksthroughthesoilandintoriversandlakes,whereitcontaminatesfishconsumedbyhumans.2WhatharmdoesDDTcause?DDTishighlypoisonoustolivingorganism,includinghumans.HowmuchdoyouknowaboutthebookSilentSpring?SilentSpring

beganwitha“fablefortomorrow”–atruestoryusingacompositeofexamplesdrawnfrommanyrealcommunitieswheretheuseofDDThadcauseddamagetowildlife,birds,bees,agriculturalanimals,domesticpets,andevenhumans.SilentSpring

inspiredthemodernenvironmentalmovement,whichbeganinearnestadecadelater.Itisrecognizedastheenvironmentaltextthat“changedtheworld.”RachelCarsonwasaprophetic(有先见之明的)voiceandher“witnessfornature”isevenmorerelevantandneededifourplanetistosurviveintoa22ndcentury.LearnsomethingabouttheauthorRachelCarson.RachelCarson,writer,scientist,andecologist,

grewupsimplyintheruralrivertownofSpringdale,Pennsylvania.

RachelCarsonwroteonlyfourbooks,buteachoftheminsomemeasurechangedthewaywethoughtaboutourselvesandourworld.1941:UndertheSea-Wind

1951:TheSeaAroundUs1955:TheEdgeoftheSea

1962:SilentSpringReadthebookreviewonSilentSpring,abookthatledtothebanningofDDT.Predictwhatwillbementionedinthepassage.①Basicinformationaboutthebook,includingtheauthor,yearofpublication,themeandmainidea;②Thereasonwhythisbookispublished;③Featuresofthewriting;④Commentsonthisbook;⑤Influenceofthisbook.Nowreadthepassageandcheckyourprediction.1.WhichworkwasregardedasamilestoneinthelaunchofthegreenmovementintheWesternworld?A.The

Edge

of

the

Sea.

B.Under

the

Sea

Wind.C.Silent

Spring.D.First

Snow.C

Choosethebestanswers.2.WhywasSilentSpringsosuccessful?A.Becauseitcausedagreatincreaseinenvironmentalawareness.B.Becausethewriterisveryfamous.C.Becauseitreflectstherealism.D.Becausethebirddescribedisverynice.A

3.What’sthetopicofSilentSpring?A.Love,hope,human.B.Nature,love,life.C.Environment,life,human.D.Environment,love,human.C

4.WhodidCarsonmainlygetcriticismfrom?A.Mostscientists.

B.Chemists.C.Marinebiologists.

D.Pesticideindustrypeople.D

5.WhydoestheauthorlikeSilentSpring?A.Itsstrongarguments.

B.Interestingtopic.C.Thebeautyandeleganceofwriting.

D.Thequalityofargument.C

OrganizeinformationfromthepassageandcompletethenotesaboutSilentSpring.AuthorRachelCarsonYearofpublication:______Purposes:Carsonaimedtoalertpeopleto__________________________

onnaturalecosystems.Shewishedtoseepesticidesusedina____________________________________________way.the

damaging

of

human

activity1962moreresponsible,limitedand

carefullymonitored_____________________saidthatCarson’sresearchisnotprecise.Carsonappearedinpublicandontelevisionto____________________.Featuresofthebook:Carsonwrotealotof______________________________________________inthebook.Theargumentsarestrong,andthelanguageis_______________________.scientificinformation,

examples

andresearchbeautifulandelegantOpposingvoices:ThepesticideindustrydefendherclaimsInfluenceofthebook:__________________wasbannedandtheEPAwasestablishedintheUS.Carsonearnedaposthumous____________________________.Thebookchangedtheworldbyincreasingpeople’s___________________________.TheuseofDDTPresidentialMedalofFreedomenvironmentalawarenessNowworkinpairs.Talkaboutwhichaspectsofthebookreviewmakeyouwanttoreadthebook.Theinfluenceofthebookarousemyinterestinreadingthebook.BecauseThebook‘SilentSpring’triggeredanenvironmentalmovementandassuchwehaveknownthetoxiceffectsofchemicalagriculture,basicallyfromtheverybeginning.Wehavesufferedbothmassiveenvironmentaldamage,diseaseandpestresistance,andhumanhealthissues.1Whywassilentspringsosuccessful?SilentSpringwassosuccessfulbecauseitalertedthegeneralpublictothedangersofDDT.Itplantedimportantnewideasinthepublicmind,suchasthatsprayingchemicalstocontrolinsectpopulationshasanimpactonotherwildlife,andthatthechemicalsgotintothefoodchain.2Whatisthemorallessonbehind“AFableforTomorrow”?Themorallessonisthatfinancialprofitshouldnotcomeattheexpenseoftheenvironmentandthecreatureslivinginit.3WhydidsomepeoplechallengeCarson’sfinding?SomepeoplechallengedCarson’sfindingsbecausetheywereconcernedaboutthenegativeimpact,theywouldhaveonbusinessinthepesticideindustry.4InwhatdifferentwaysdoFirstSnowandSilentSpringraisepeople’sawarenessofnature?FirstSnowshowsthebeautyofnature–andinparticularthesnow–throughitswordsandimagery,whileSilentSpringdescribesanunnaturalspringwithoutthebeautyofbirdsong.Theyeachraisepeople’sawarenessofnaturebyhighlightingtheinterplaybetweennatureandhumanbehavior.Workingroups.WriteanawardspeechforRachelCarson.1ReadthepassageagainandmakenotesaboutRachelCarson’scontributionstoenvironmentalprotection.Considerthefollowing:hermostinfluentialworkwhatpointsshetriedtomakedifficultiesshemetwithherpersonalqualities2RachelCarsonreceivedherPresidential