人教版 （2023）选择性必修 第三册 Unit 3 Environmental Protection Reading and Thinking课件(共38张PPT)

第第页人教版（2023）选择性必修第三册Unit3EnvironmentalProtectionReadingandThinking课件(共38张PPT)(共38张PPT)

人教版（2023）选择性必修三

Unit3EnvironmentalProtection

ReadingandThinking

Discussclimatechange

Learningobjectives

Bytheendofthissection,youwillbeableto:

1.readaboutclimatechangeanddiscussit;

2.practisereadingfordetailedinformation;

3.drawadiagramonhowthegreenhouseeffectworks;

4.learnsomekeywordsandphraseslikeecology,sustainandcarbon.

本单元的引言出自印度国父甘地（MohandasK.Gandhi）。地球是人类生活的家园，人类的生存和发展必须依赖自然环境和自然资源。因为贪婪，人类过度开采自然资源，造成环境破坏、生态失衡、资源枯竭，最终受害的还是人类自己。人类只有坚持科学发展观，适度利用资源，我们生存的环境才会逐渐好起来。

Earthprovidesenoughtosatisfyeveryman’sneeds,butnoteveryman’sgreed.

—MohandasK.Gandhi

地球所提供的物质财富足以满足每个人的需求，却不足以满足每个人的贪欲。

——莫罕达斯·卡拉姆昌德·甘地

Lead-in

Whatphenomenacanyouidentifyfromtheseimages

storm

sealevelrise

drought

heatwave

flood

fire

WhatisthegraphaboutWhatinformationcanyougetfromit

HaveyoueverseenthephotobeforeWhatmightbethestorybehindit

Beforeyouread,lookatthegraphandthepicturebelowanddiscussthesequestionsingroups.

Pre-reading

ThegraphshowsthechangeintheGlobalSurfaceTemperaturebetween1920and2023.Itshowshowmuchthetemperaturehasrisenabovewhatitwouldusuallybeatabaselevel.

.

Ihaven’tseenthisphoto,butIhaveseenphotoslikeit.Thestoryisthatthepolarbearstarvedtodeathbecauseitcouldnotfindenoughtoeat.

Readthetextandmatchthemainideawitheachparagraph.

While-reading

1

2

3

4

5

Readthetextandmatchthemainideawitheachparagraph.

While-reading

Para.1A.Weneedtodosomethingtoreducegreenhousegas

emissions.

Para.2B.Theriseintemperaturehascausednaturaldisasters.

Para.3C.Earthisgettingwarmerandwarmer.

Para.4D.Adeadpolarbearwasfound,whichalarmedsome

experts.

Para.5E.WhyisEarthgettingwarmerandwarmer

Lookatparagraph1andfindoutitsmainidea.

CLIMATECHANGEREQUIRESTHEWORLD’SATTENTION

Wehaveknownaboutclimatechangefordecades.ThereislittledoubtthatEarthisgettingwarmerandwarmer(seethegraph).Awarmingoceanandatmospherealongwithmeltingiceandrisingsealevelsprovideevidenceofadramaticchangeintheglobalclimate.

Evidenceofclimatechange

Lookatparagraph2andfindoutitsmainidea.

In2023,alotofpeoplewereshockedbyanewsphotoofadeadpolarbearthatwasfoundonNorway’sArcticislandofSvalbard.Accordingtothescientistswhofounditsdeadbody,allthatremainedofthepolarbearwas“skinandbones”.Anexpertwhohasstudiedpolarbearsformanyyearssaidthatfromthepositionofitsdeadbody,thebearappearedtohavestarvedanddied.Expertsclaimedthatlowsea-icelevelscausedbyclimatechangemeantthebearcouldnothuntsealsasbefore,soithadtotravelgreaterdistancesinordertofindfood.ThisalarmingcaseshowedhowtheincreaseintemperaturehadanimpactonEarth’secology.

Oneofthevictimsofclimatechange

Lookatparagraph3andfindoutitsmainidea.

ThenwhatiscausingtheincreaseintheglobalaveragesurfacetemperatureClimatescientistsoftenmentionakeyclimateprocesscalledthe“greenhouseeffect”,whichhastwocommonmeanings:the“natural”greenhouseeffectandthe“man-made”greenhouseeffect.The“natural”greenhouseeffectreferstothefactthatheatfromthesunenterstheatmosphereandwarmsEarth’ssurfaceasshort-waveradiation.Theheatisreleasedbackintospaceatlongerwavelengths.Greenhousegasesintheatmosphere,suchasmethaneandcarbondioxide,trapsomeoftheheat,keepingEarth’sclimatewarmandhabitable.Withoutthisprocess,Earthcouldnotsustainlife.However,the“man-made”greenhouseeffecthasnowbecomeabigproblem.Whenpeopleproducehugeamountsofextragreenhousegasesbyburningfossilfuels,moreheatenergyistrappedintheatmosphereandcausesEarth’ssurfacetemperaturetorisequickly.

Causesofclimatechange

Lookatparagraph4andfindoutitsmainidea.

Thereisstrongandcomprehensiveevidencethattheriseintemperaturehasledtoanincreaseinextremeweatherandnaturaldisastersworldwide,notonlycausingseriousdamage,butalsocostinghumanlives.Climatescientistshavewarnedthatifwedonottakeappropriateactions,thiswarmingtrendwillprobablycontinueandtherewillbeahigherpricetopay.Infact,newsreportsarefrequentlybroadcastaboutextremerainstormsandheatwavescausingdeathsandeconomiclosses.

Effectsofclimatechange

Lookatparagraph5andfindoutitsmainidea.

Continuedgreenhousegasemissionswillresultinfurtherwarmingandlong-lastingchangestotheglobalclimate.Thisrequirestheattentionofpeopleallovertheworld.Governmentsneedtoconsidermakingpoliciesandtakingappropriateactionsandmeasurestoreducegreenhousegasemissions.Weasindividualscanalsoreduceour“carbonfootprint”byrestrictingtheamountofcarbondioxideourlifestylesproduce.Itisourresponsibilitytoseizeeveryopportunitytoeducateeveryoneaboutglobalwarming,alongwithitscausesandimpacts,becausethisisthemostseriousissueaffectingallofusonthisplanet.Sowhatwillyoudotohelp

Solutionsofclimatechange

problem

example

causes

effects

solutions

Expositorywriting

Lookatthestructureofthetextandfindoutthetypeofthetext.

PartParagraphMainidea

11-2TheofdramaticclimatechangethathadanimpactonEarth’secology

23The__________oftheincreaseintheglobalaveragesurfacetemperature

34Theoftheriseintemperature

45Thetoreducinggreenhousegasemissions

Lookatthefourpartsofthetextandfillintheblanks.

evidence

causes

effects

solutions

Readthetextagainandanswerthequestions.

1.WhathappenedtothepolarbearinthephotoWhydidthewriterwriteaboutit

2.Canyouuseyourwordstodescribehowclimatechangehaveinfluencedthepolarbear’slife

Thepolarbearinthephotodiedofstarvation.Thewriterwroteaboutitbecauseitshowedoneoftheeffectsofrisingtemperaturesduetoclimatechange.

Climatechange

lowsea-icelevels

bearscouldnothunt

hadtotravelgreaterdistancestofindfood

starvedtodeath

itsdeadbodyfound

Readthetextagainandanswerthequestions.

3.Whyisthe“natural”greenhouseeffectimportantandnecessary

4.Whataretheconsequencesofhighgreenhousegasemissions

5.Whydidtheauthormentiontheclimatescientists’warning

6.Whatistheauthor’spurposeofwritingthistext

The“natural”greenhouseeffectisimportantbecauseitwarmstheEarth’ssurfaceandkeepsithabitable.

Highgreenhousegasemissionsleadtomoreheatenergybeingtrappedintheatmosphereandrisingtemperatures.

Becauseitisessentialthatwetakeactionandsoitneedstobebroughttoeveryone’sattention.

Toinformthereaderandinspirethemtodowhatevertheycantodealwiththisproblem.

Readthetextagainandcreateadiagramdescribinghowthegreenhouseeffectworks.

Readthetextagainandcreateadiagramdescribinghowthegreenhouseeffectworks.

HeatfromthesunenterstheatmosphereandwarmsEarth’ssurfaceasshort-waveradiation.

man-made

Definition

Function

natural

GreenhouseEffect

keepingEarth’sclimatewarmandhabitable

Peopleproducehugeamountsofextragreenhousegasesbyburningfossilfuels.

Definition

Function

MoreheatenergyistrappedintheatmosphereandcausesEarth’ssurfacetemperaturetorisequickly.

Greenhouseeffect

“Natural”greenhouseeffect

“Man-made”greenhouseeffect

Readthetextagainandcreateadiagramdescribinghowthegreenhouseeffectworks.

Discussthesequestionsingroups.

Post-reading

1.WhatexamplesofextremeweatheranddisastersdoyouknowCanyoumakealist

2.DoyouthinkclimatechangeistheresultofhumanactivityGiveyourreasons.

3.WhodoyouthinkshouldtakeresponsibilityfordealingwithclimatechangeWhatcanwedo

Tornado,hail,typhoon,strongcoldwave,sandstorm,etc.

Yes,Ithinkso.Itistheburningoffossilfuelsbyhumanbeingsthathasaddedmoreheattotheatmosphere.

Everyoneofusshouldtakeresponsibilityforit.Wecanbuythingsthatareeconomicalwithenergyandrecyclepaperbags,cansandbottles.

WordsandExpressions

Anexpertwhohasstudiedpolarbearsformanyyearssaidthatfromthepositionof

itsdeadbody,thebearappearedtohavestarvedanddied.(P26)

一位长期研究北极熊的专家说，从尸体的姿势看，这只北极熊像是饿死的。

starve/stɑv/vi.&vt.（使)挨饿；饿死

搭配

starvesbintosth/intodoingsth断绝食物（或资金）来源以迫使某人做某事

starvetodeath饿死starvefor渴望；急需

拓展

starvationn.饥饿；挨饿；饿死

例句

Thenewjobdoesn’tpayasmuchbutwewon’tstarve!

新工作的工资没有过去多，不过我们不至于挨饿！

1

Thisalarmingcaseshowedhowtheincreaseintemperaturehadanimpacton

Earth’secology.(P26)

这一令人惊恐的案例反映了气温上升对地球生态造成的影响。

ecology/ikldi/n.生态；生态学

搭配

socialecology社会生态学

ecosystemecology生态系统生态学

拓展

ecologicaladj.生态的；生态学的

ecologistn.生态学家

例句

Oilpollutioncoulddamagethefragileecologyofthecoralreefs.

石油污染可能破坏珊瑚礁脆弱的生态环境。

2

Theheatisreleasedbackintospaceatlongerwavelengths.(P27)

这一热量以更大的波长被释放回大气层。

release/rlis/vt.&n.排放；释放；发布

搭配

releasefrom解除；豁免

releasepressure释放压力

releasedate发布日期；发行日期；出厂日期

例句

Firefighterstooktwohourstoreleasethedriverfromthewreckage.

消防队员花了两个小时将司机从汽车残骸中救出来。

Themoviegoesongeneralreleasenextweek.

这部电影将于下周公开上映。

3

Greenhousegasesintheatmosphere,suchasmethaneandcarbondioxide,trapsome

oftheheat,keepingEarth’sclimatewarmandhabitable.(P27)

大气层中甲烷、二氧化碳等温室气体困住了部分热量，从而使地球保持气候温

暖、适宜居住。

carbon/kɑbn/n.碳

搭配

carbondioxide二氧化碳

carbonemissions碳排放

carbontaxes碳税

例句

Howdowemovetoalowcarboneconomy

我们如何转向低碳经济？

4

Withoutthisprocess,Earthcouldnotsustainlife.(P27)

如果没有这一过程，地球就无法维系生命。

sustain/ssten/vt.维持；遭受；承受住

拓展

sustainableadj.不破坏生态平衡的，合理利用的；可持续的

例句

Theloveandsupportofhisfamilysustainedhimduringhistimeinprison.

家人的关爱和支持帮助他度过了狱中的岁月。

Thecompanysustainedlossesofmillionsofdollars.

公司遭受了数百万美元计的巨大损失。

Theseawallsustainstheshockofthewaves.

海堤能抵挡海浪的冲击。

5

Whenpeopleproducehugeamountsofextragreenhousegasesbyburningfossil

fuels,...(P27)

当人类由于燃烧化石燃料产生了大量额外的温室气体，……

fuel/fjul/n.燃料；刺激性言行

搭配

solidfuel固体燃料

nuclearfuels核燃料

addfueltothefire/flames火上浇油

例句

Thereisasevereshortageoffuel.

燃料严重短缺。

Mynewcariseconomicaloffuel.

我的新汽车节省燃料[不费油]。

6

Thereisstrongandcomprehensiveevidencethat...(P27)

确凿、全面的证据表明……

comprehensive/kmprhensv/adj.全部的；所有的；详尽的

搭配

comprehensivequality综合素质

comprehensiveuniversity综合性大学

comprehensivenationalpower综合国力

拓展

comprehendvi.&vt.理解；领悟；包括

例句

Twoveryclearandcomprehensivehandbooksareavailable.

现有两种清晰易懂、内容全面的手册供应。

Whentheworkoutisover,yougetacomprehensivesummary.

锻炼结束后会有一个全面的总结。

7

Climatescientistshavewarnedthatifwedonottakeappropriateactions,this

warmingtrendwillprobablycontinueandtherewillbeahigherpricetopay.(P27)

气候学家已发出警告：如果我们不采取适当的行动，这种变暖的趋势可能会持

续下去，而我们将为此付出更大的代价。

trend/trend/n.趋势；趋向；动向

搭配

economic/social/politicaltrends经济／社会／政治趋势

markettrend市场趋势；市场趋向

generaltrend一般趋势

例句

Youseemtohaveset(=started)anewtrend.

看来你们是开了一个新风气。

8

Infact,newsreportsarefrequentlybroadcastaboutextremerainstormsand

heatwavescausingdeathsandeconomiclosses.(P27)

事实上，有关极端暴风雨和热浪造成死亡和经济损失的新闻报道已屡见不鲜。

frequently/frikwntli/adv.频繁地；经常

拓展

frequentadj.频繁的，经常发生的v.常去；常到（某处）

frequencyn.频繁；发生率；出现率；重复率

例句

Busesrunfrequentlybetweenthecityandtheairport.

公共汽车频繁地来往于市区与机场之间。

Wehadtopausefrequentlyforbreath.

我们不得不经常停下来喘口气。

9

Infact,newsreportsarefrequentlybroadcastaboutextremerainstormsand

heatwavescausingdeathsandeconomiclosses.(P27)

事实上，有关极端暴风雨和热浪造成死亡和经济损失的新闻报道已屡见不鲜。

broadcast/brdkɑst/vt.&vi.播送；广播；传播n.广播节目；电视节目

拓展

broadcastern.广播员；节目主持人；电视台；广播公司

例句

Theconcertwillbebroadcastlivetomorrowevening.

明晚的音乐会将现场直播。

Idon’tliketobroadcastthefactthatmyfatherownsthecompany.

我不想宣扬这家公司为我父亲所有。

10

Governmentsneedtoconsidermakingpoliciesandtakingappropriateactionsand

measurestoreducegreenhousegasemissions.(P27)

各国政府需考虑制定政策并采取适当的行动和措施以减少温室气体的排放。

policy/plsi/n.政策；方针；原则

搭配

monetarypolicy货币政策

economicpolicy经济政策

foreignpolicy外交政策

例句

Thecompanyhasadoptedafirmpolicyonshoplifting.

那家公司对店内行窃采取了严厉的措施。

Theyhavehadasignificantchangeinpolicyonpaternityleave.

他们对男人陪产假制度作了重大改变。

Honestyisthebestpolicy.诚实为上。

11

Weasindividualscanalsoreduceour“carbonfootprint”byrestrictingtheamountof

carbondioxideourlifestylesproduce.(P27)

作为个人，我们可以通过限制生活方式产生的二氧化碳量来减少我们的“碳

足迹”。

restrict/rstrkt/vt.限制；限定；束缚

拓展

restrictionn.限制规定；限制法规

例句

Accesstotheclubisrestrictedtomembersonly.

俱乐部仅对会员开放。

Irestrictmyselftoonecupo