人教版（2023） 选择性必修 第三册 Unit 3 Environmental Protection Reading and Thinking 课件(共31张PPT+视频)

第第页人教版（2023）选择性必修第三册Unit3EnvironmentalProtectionReadingandThinking课件(共31张PPT+视频)(共31张PPT)

Unit3

UNIT3

ENVIRONMENTALPROTECTION

WhatcanyouseeinthephotoWhat’shappeningWhereisit

Whatdoyouknowabout

glaciersmeltingonearth

Whatwillhappenifglaciers

aremeltingfasterthanbefore

Howdoyoufeelwhenyou

lookatthepicture

Earthprovidesenoughtosatisfyeveryman’sneeds,butnoteveryman’sgreed.

—MohandasK.Gandhi

Whatisthedifferencebetween“needs”and“greed”

Canyoubrainstormsomeexamplesof“needs”and“greed”

HowdoyouunderstandthequoteHowisitrelatedtothethemeoftheunit

Todiscussclimatechange

Tolearntoidentifythestyleofthistextandinferthewriter’spurpose

Tolearntodrawadiagram

Tothinkabouthowwecandotodealwithclimatechange

Climatechangeisaheattopicforthescientistsaroundtheworld.Theyalltrytofindoutthetruthaboutthesequestions:

Whatcausesclimatechange

Whatarethesolutionstostopclimatechange

Viewthevideo.

Whatotherconsequencesmayglobalwarmingbringabout

1.WhatisthegraphaboutWhatinformationcanyougetfromit

ThegraphshowsthechangeintheGlobalSurfaceTemperaturebetween1920and2023.Itshowsthetemperatureanomaly,whichshowshowmuchthetemperaturehasrisenabovewhatitwouldusuallybeatabaselevel.

Beforeyouread,lookatthegraphandthepictureonPage26anddiscussthesequestionsingroups.

2.HaveyoueverseenthephotobeforeWhatmightbethestorybehindit

Ihaven’tseenthisphoto,butIhaveseenphotoslikeit.Thestoryisthatthepolarbearstarvedtodeathbecauseitcouldnotfindenoughtoeat.

Whattypeofwritingisthispassage

ArgumentativewritingB.Narrativewriting

C.ExpositorywritingD.Advertisingwriting

C

2.Inwhichpartofanewspaperormagazinemaywefindthispassage

EntertainmentB.Economy

C.EducationD.Environment

D

Readthepassagequickly,andchoose:

本文是一篇说明文。说明文是客观说明事物的一种文体，以解说或介绍事物的形状、性质、成因、构造、功用、类别等为主要内容。说明文主要通过对客观事物或事理的介绍说明，达到以知识教人的目的，因此说明文以客观、准确为基本要求，强调科学性和客观性。

Readthetextquickly,andfigureoutitsstructure.

PartPara.Mainidea

1

2

3

4

1-2

TheevidenceofdramaticclimatechangethathadanimpactonEarth’secology

3

Thecauseoftheincreaseintheglobalaveragesurfacetemperature

4

Theconsequencesoftheriseintemperature

5

Thesolutionstoreducinggreenhousegasemissions

本文按照“现象—原因—危害—措施”的逻辑顺序展开，环环相扣，步步深入。标题ClimateChangeRequirestheWorld’sAttention点明了的诉求：气候变化对地球生态系统的影响是巨大的，需要全人类共同关注和面对。文本以现在时态和将来时态为主，强调文章的现实意义及对将来不利后果的预测。

Readthetextcarefully,andanswerthequestions.

WhathappenedtothepolarbearinthephotoWhydidthewriterwriteaboutit

Thepolarbearinthephotodiedofstarvation.Thewriterwroteaboutitbecauseitshowedoneoftheeffectsofrisingtemperaturesduetoclimate

change.

Canyouuseyourwordstodescribehowclimatechange

haveinfluencedthepolarbear’slife

itsdeadbodyfound

【拓展】

Climatechange

lowsea-icelevels

bearscouldnothunt

hadtotravelgreaterdistancestofindfood

starvedtodeath

2.Whyisthe“natural”greenhouseeffectimportantandnecessary

BecauseitkeepsEarth’sclimatewarmandhabitable.

3.Whataretheconsequencesofhighgreenhousegasemissions

Moreheatenergyistrappedin

theatmosphereandcausesEarth’s

surfacetemperaturetorisequickly.

KeepingEarth’swarmandhabitable

ReadParagraph3,andfigureoutthereasonwhyearth’stemperaturerising.

Greenhouseeffect

“Natural”greenhouseeffect

“man-made”greenhouseeffect

CausingEarth’ssurfacetemperaturetorisequicklyiftoomuchheatenergyistrapped

【拓展】

ReadParagraph4.WhataretheconsequencesofglobaltemperatureriseFinishthemindmapbelow.

【拓展】

Theriseintemperature

ledto

example

results

extremerainstorms,heatwaves

seriousdamage,costinghumanlives,economiclosses

extremeweather/naturaldisasters

4.Whydidtheauthormentiontheclimatescientists’warning

Toappealtopeopletotakeappropriateactionsandmeasures.

5.Whatistheauthor’spurposeofwritingthistext

Todrawreaders’attentiontoclimatechangeandinspirethemtodowhatevertheycantodealwiththisproblem.

InParagraph5,theauthorhopeseveryonecantakeactionstoreduceour“carbonfootprint”.Asindividuals,whatcanwedoinourdailylifetohelptominimizeclimatechange

Userenewableenergies

Saveenergy

Stopusingplasticbags

Livealow-carbonlife

Usetheminimumpaper

Takegreentransportation

Takeashowerinsteadofabath

Turnoffthelights,computersetc.themomentyoudon’tneedthem

…

ReadParagraph5.

Whatpoliciescanthegovernmentmaketoreducegreenhousegasemissions

Whyisaquestionleftattheend

【拓展】

Inthispassage,whatwritingtechniquesdoestheauthoruseinordertoachievehis/herpurpose

Readthetextagainandcreateadiagramdescribinghowthegreenhouseeffectworks.

Drawadiagram

Diagramsareveryusefultoolsthatcanbeusedtobrainstormideas,mapoutprocesses,showcauseandeffectrelationships,explainanewideaorconcept,andsoon.Whenyoureadanessayaboutscientificissues,youcantrydrawingadiagram,whichwillnotonlyallowyouvisualisetheproblemsmoreclearlybutalsocanhelpdemonstrateyourcreativethinkingandproblem-solving.

Choosetherightitemfromtheboxtomakethesummarycomplete.Changetheformwhennecessary.

starve,natural,ecology,naturaldisaster,carbonfootprint,fossilfuel

Warmingoceans,meltingiceandrisingsealevelsproveclimatechangeishappening.ItsshockingimpactonEarth's1.______________couldbeseenina2023photoofapolarbearontheNorway'sArcticislandofSvalbardthathad2.______________todeath.Unabletohuntsealsasbefore,scientistsconcludedlowsea-icelevelsduetoclimatechangehadforcedittotravellongdistancestofindfood.

ecology

starved

starve,natural,ecology,naturaldisaster,carbonfootprint,fossilfuel

Whenexplainingclimatechange'scauses,scientistsoftentalkabouttwotypesof“greenhouseeffect”—“3.______________”and“man-made.”AsthesunwarmsEarth,greenhousegasesintheatmospheresuchasmethaneandcarbondioxidetrapsomeheatin,makingEarthwarmenoughtoliveon.Extraman-madegreenhousegasesfromburning4._______________howevertrapevenmoreheatintheatmosphere,leadingtoextremeweatherand5._________________.

natural

fossilfuels

naturaldisasters

starve,natural,ecology,naturaldisaster,carbonfootprint,fossilfuel

Scientistswarnofmoredisasterstocomeifthisman-madeglobalwarmingisnotstopped.Bothgovernmentandindividualactionsarerequiredtoreducethecarbondioxideor“6._______________”ourlifestylesproduce.Sowhatwillyoudotohelpwiththemostseriousissue

carbonfootprint

Discussthequestionsingroups.

WhatexamplesofextremeweatheranddisastersdoyouknowCanyoumakealist

TherearesadlymanyexamplesofextremeweatheranddisastersIknowof,suchastheextremerainfallinFranceandthedroughtinEastAfricain2023