第第頁(yè)人教版（2023）選擇性必修第三冊(cè)Unit3EnvironmentalProtectionReadingandThinking課件(共31張PPT+視頻)(共31張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:

本文是一篇說(shuō)明文。說(shuō)明文是客觀說(shuō)明事物的一種文體，以解說(shuō)或介紹事物的形狀、性質(zhì)、成因、構(gòu)造、功用、類(lèi)別等為主要內(nèi)容。說(shuō)明文主要通過(guò)對(duì)客觀事物或事理的介紹說(shuō)明，達(dá)到以知識(shí)教人的目的，因此說(shuō)明文以客觀、準(zhǔn)確為基本要求，強(qiáng)調(diào)科學(xué)性和客觀性。

Readthetextquickly,andfigureoutitsstructure.

PartPara.Mainidea

1

2

3

4

1-2

TheevidenceofdramaticclimatechangethathadanimpactonEarth’secology

3

Thecauseoftheincreaseintheglobalaveragesurfacetemperature

4

Theconsequencesoftheriseintemperature

5

Thesolutionstoreducinggreenhousegasemissions

本文按照“現(xiàn)象—原因—危害—措施”的邏輯順序展開(kāi)，環(huán)環(huán)相扣，步步深入。標(biāo)題ClimateChangeRequirestheWorld’sAttention點(diǎn)明了的訴求：氣候變化對(duì)地球生態(tài)系統(tǒng)的影響是巨大的，需要全人類(lèi)共同關(guān)注和面對(duì)。文本以現(xiàn)在時(shí)態(tài)和將來(lái)時(shí)態(tài)為主，強(qiáng)調(diào)文章的現(xiàn)實(shí)意義及對(duì)將來(lái)不利后果的預(yù)測(cè)。

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