新课标人教版选修六Book6-Unit4-Reading课件

ReadingReading1Whatisthegreenhousemadeandusedfor?Whatisthegreenhousemade2新课标人教版选修六Book6-Unit4-Reading(同名229)课件3新课标人教版选修六Book6-Unit4-Reading(同名229)课件4Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.Agreenhouseismadeof5Howdoesitwork?

Theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping.Thismakesthegreenhouseheatupandsotheplantscangrowthroughoutthe

coldperiod.Howdoesitwork?6Whatarethe“greenhousegases”?

Intheatmospheresurroundingtheearththerearegases,whicharecalled“greenhousegases”,includingcarbondioxide,methane(甲烷,沼气)andwatervapor.Whatarethe“greenhousegases7Whatdoyouthinkgreenhousegasesdo?

Theytrapheatfromthesunandthereforewarmtheearth.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatdoyouthinkgreenhouse新课8MainideasofeachpartWritingtechniques(Paragraph1)Introduceadebateovertheissueofglobalwarming.RaisingaquestionReading新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】MainideasofeachpartWriting9MainideasofeachpartWritingtechniques(Paragraphs2---3)Illustratehowglobalwarmingcomesabout.Givingexamples,usinggraphs,explanation.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】MainideasofeachpartWriting10(Paragraphs4---5)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Givingexamples,makingcontrast.

新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】(Paragraphs4---5)Listtwod11(Paragraph6)

It'suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.Usingaquestion,leavingreaderstothinkovertheissue.

新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】(Paragraph6)It'suptore12Readthetextcarefullyandfillintheblanks.ScientistsOpinionJaniceFoster◆Weneed1______likecarbondioxide,methaneandwatervapour,butifweaddhuge2__________extracarbondioxidetotheatmospherebyburningfossilfuels,itwillcausethe3________________togoup.gasesquantitiesofglobaltemperature新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Readthetextcarefullyandfi13ScientistsOpinionJaniceFoster◆Overthenext100yearstheamountofwarmingcouldbeaslowas1to1.5degreesCelsius,butitcouldbeashighas5degreesCelsius.◆Anincreaseoffivedegreeswouldbea4____________.catastrophe新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】ScientistsOpinionJaniceFoster14ScientistsOpinionsGeorgeHambley◆Believesthatweshouldn’tworryabout5__________ofcarbondioxideintheair.◆Predictsthatanywarmingwillbemildwithfewbadenvironmental6___________.◆7_______thatmorecarbondioxideisactuallya8________thing,whichwillmakelifeforhumanbeingsbetter.highlevels

consequencesStatespositive新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】ScientistsOpinionsGeorgeHambl15Choosethebestanswers.1.WhichofthefollowingisTRUEaccordingtothetext?A.ThetemperatureoftheearthincreasedaboutonedegreeFahrenheitduringthe20thcentury.B.Thecarbondioxidecontentintheairincreasedby70partspermillionfrom1957to1997.C.Allscientistsacceptthedataingraph2exceptCharlesKeeling.D.JaniceFostersaysthatmorecarbondioxidewillmakeplantsgrowfaster.A新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Choosethebestanswers.A新课标人教162.WhichofthefollowingisDrJaniceFoster’sopinion?A.Theresultofthetemperatureincreasewillbeserious.B.Theamountofwarmingisnothingserious.C.Weneedn’tworryabouthighlevelsofcarbondioxide.D.Globalwarmingisanaturalphenomenon.A新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】2.WhichofthefollowingisD17Comprehending新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Comprehending新课标人教版选修六Book6Un18浓度单位新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】浓度单位新课标人教版选修六Book6Unit4Readi19Glancequicklyatthemagazinearticleandanswerthequestions.Whowrotethemagazinearticle?Whatisthenameofthemagazine?

SophieArmstrongwrotethemagazinearticle.ThenameofthemagazineisEarthCare.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Glancequicklyatthemagazine20Whatarethenamesofthethreescientistsmentionedinthearticle?

TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatarethenamesofthethre213.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?

Theydon'tagreewitheachother.Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】3.Whatdotheythinkaboutgl22

GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.

CharlesKeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】GeorgeHambleythinks23Whatarethetwographsabout?

GraphIshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.

Graph2isaboutthecarbondioxidecontentintheatmosphere,1958--1990.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatarethetwographsabout?24Whatisthemaintopicofthearticle?

Globalwarming/thewarmingoftheearth.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatisthemaintopicofthe252.True:3,5,6,7,8

False:1,2,4,9,10Correctsentences:1.Thetemperaturelastcenturyincreased

much.2.Noteveryonebelievesthatglobal

warmingiscausedbyhumanactivities.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】2.True:3,5,6,7,8新课标人教版选264.Naturalgasisnotagreenhousegas

butafossilfuel.9.GeorgeHambleythinksthatmorecarbondioxideisapositivethingand

itwillmakeplantsgrowfaster.10.Itisunknownwhattheeffectsof

globalwarmingwillbe.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】4.Naturalgasisnotagreenh27DebateInstructions●Getintogroupsofsix.Decidewhichthreeinyourgrouparegoingtoagreewiththestatement(GroupA)andwhichthreearegoingtodisagreewiththestatement(GroupB).新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Debate新课标人教版选修六Book6Unit4Rea28●GroupAdiscusswhytheyagreewiththestatement;GroupBdiscusswhytheydisagree.●GroupAandBgettogether.Telleachotherthereasonswhyagreeordisagreewiththestatement.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】●GroupAdiscusswhytheyagr29Supplementarymaterialsfordebating

Globalwarming1.Theplanethaswarmedanywherefrom0.5to1.0°C(1to2°F)overthelastcentury.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Supplementarymaterialsforde30Thissmallamountmakesahugedifference,causingglacierstomeltand,potentially(潜在的),sealeveltorise.Wecouldseeevenmoreofthisinthefuture,(maybeanother3°C,or5°F)新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Thissmallamountmakesah31globalwarming新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】globalwarming新课标人教版选修六Book6U32globalwarming新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】globalwarming新课标人教版选修六Book6U332.Adefinitionofglobalwarmingwouldhavetoincludeameasurable,consistenttemperaturerise,liketheonewehaveseeninrecenthistory.Aquestionremains–Isitanunusualchange?Muchdebateaboutthatone.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】2.Adefinitionofglobalwarm343.Theearthgetsonekindofenergy(visiblelight)fromthesunandgivesoffanotherkind(infrared红外线).Thiskindiswhatgetstrappedby"greenhousegases"(GHG's)intheatmosphere.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】3.Theearthgetsonekindof35Greenhousegases4.Theglobalwarminggreenhouseeffectreallyisabogus(假的)term.Agreenhousekeepswarmbyphysicallytrappingtheairinsideandpreventingconvection(对流).Theatmospherehelpskeeptheplanetwarmbytrappingoutgoingradiationinstead.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Greenhousegases新课标人教版选修六Book365.TheleadinggassesareCarbon-dioxide,Methane,Ozone(臭氧)andNitrousOxide(一氧化二氮).Gasanalyzersshowtheconcentrationsofthisstuffhaveincreasedsomewhatsincethebeginningoftheindustrialrevolution.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】5.TheleadinggassesareCarb376.ThegreenhouseeffectraisestheaveragetemperatureoftheEarthbymorethan30degrees,sowithoutittheEarthwouldbeaverycoldplace!新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】6.Thegreenhouseeffectraises38greenhouseeffect新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】greenhouseeffect新课标人教版选修六Boo39greenhouseeffect新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】greenhouseeffect新课标人教版选修六Boo40GREENHOUSEFeelinghelplesstodoanythingaboutglobalwarming?Findouthowonefamilycuttheirownpersonalgreenhouse-gasemissionsby65percent--andhowyoucandothesame.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】GREENHOUSE新课标人教版选修六Book6Uni41greenhouseeffect新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】greenhouseeffect新课标人教版选修六Boo42

Homework

1.Readthepassageagainandreviewthenewwordsandexpressions.2.Preparethedebateingroups.3.PreviewUsingLanguage--WHATCANWEDOABOUTGLOBALWARMING?新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Homework新课标人教版选修六Book6Uni431.榜样示范与言传身教并重。现代教育理念认为，家庭是子女的第一所学校。这与古人在教育方面讲求以身示范、身体力行来达到教育晚辈的目的是较为一致的。他们都是通过言传身教，营造正面而健康的家庭氛围，以期对晚辈的人格塑造产生潜移默化的影响。2.家训文化源远流长，它是中国优秀传统文化的重要组成部分，潜移默化地影响着人们的内心、精神、思想及其生活。3.中国传统家训文化意蕴丰富，在立德、修身、齐家、处世等方面均有其行为规范，它还包括传统文化及其价值倾向。4.我国的家训文化在周代就已经产生，家训文化的作用非常明显，如团结族人、凝聚家庭氛围、形成良好家族风气等。5.进一步注重家庭所发挥的积极作用，从而形成施教导民、上下和合的良好局面，是使精神文明建设适应于现代化建设的需要的前提。6.优秀的家风积淀着中华民族优秀传统文化，它所蕴含的基本精神，将成为与时俱进和创新发展的社会主义核心价值观的力量源泉。7.小说开篇包含了丰富的信息，让我们大概了解了李老师的基本情况，包括身体情况、工作情况、经济状况和他同孩子们之间的关系8．美国国家太空协会是一个致力于创建太空文明的民间非营利组织，由国家太空研究所和拉格朗日点协会发展而来。9．虽然火星的自然环境十分恶劣，但未来对火星进行改造以及人类在火星建造基地，这些都有可能成为现实。10．目前应用于深空探测中的人工智能仍处于弱人工智能阶段，而探月工程由于人工智能的广泛应用，已经走向强人工智能化。11．中国开展火星探测的可行性论证与探月工程几乎同步，而中图首次火星探测任务从正式立项到正式启动仅用了四个月的时间。感谢观看，欢迎指导！新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】1.榜样示范与言传身教并重。现代教育理念认为，家庭是子女的第44ReadingReading45Whatisthegreenhousemadeandusedfor?Whatisthegreenhousemade46新课标人教版选修六Book6-Unit4-Reading(同名229)课件47新课标人教版选修六Book6-Unit4-Reading(同名229)课件48Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.Agreenhouseismadeof49Howdoesitwork?

Theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping.Thismakesthegreenhouseheatupandsotheplantscangrowthroughoutthe

coldperiod.Howdoesitwork?50Whatarethe“greenhousegases”?

Intheatmospheresurroundingtheearththerearegases,whicharecalled“greenhousegases”,includingcarbondioxide,methane(甲烷,沼气)andwatervapor.Whatarethe“greenhousegases51Whatdoyouthinkgreenhousegasesdo?

Theytrapheatfromthesunandthereforewarmtheearth.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatdoyouthinkgreenhouse新课52MainideasofeachpartWritingtechniques(Paragraph1)Introduceadebateovertheissueofglobalwarming.RaisingaquestionReading新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】MainideasofeachpartWriting53MainideasofeachpartWritingtechniques(Paragraphs2---3)Illustratehowglobalwarmingcomesabout.Givingexamples,usinggraphs,explanation.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】MainideasofeachpartWriting54(Paragraphs4---5)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Givingexamples,makingcontrast.

新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】(Paragraphs4---5)Listtwod55(Paragraph6)

It'suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.Usingaquestion,leavingreaderstothinkovertheissue.

新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】(Paragraph6)It'suptore56Readthetextcarefullyandfillintheblanks.ScientistsOpinionJaniceFoster◆Weneed1______likecarbondioxide,methaneandwatervapour,butifweaddhuge2__________extracarbondioxidetotheatmospherebyburningfossilfuels,itwillcausethe3________________togoup.gasesquantitiesofglobaltemperature新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Readthetextcarefullyandfi57ScientistsOpinionJaniceFoster◆Overthenext100yearstheamountofwarmingcouldbeaslowas1to1.5degreesCelsius,butitcouldbeashighas5degreesCelsius.◆Anincreaseoffivedegreeswouldbea4____________.catastrophe新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】ScientistsOpinionJaniceFoster58ScientistsOpinionsGeorgeHambley◆Believesthatweshouldn’tworryabout5__________ofcarbondioxideintheair.◆Predictsthatanywarmingwillbemildwithfewbadenvironmental6___________.◆7_______thatmorecarbondioxideisactuallya8________thing,whichwillmakelifeforhumanbeingsbetter.highlevels

consequencesStatespositive新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】ScientistsOpinionsGeorgeHambl59Choosethebestanswers.1.WhichofthefollowingisTRUEaccordingtothetext?A.ThetemperatureoftheearthincreasedaboutonedegreeFahrenheitduringthe20thcentury.B.Thecarbondioxidecontentintheairincreasedby70partspermillionfrom1957to1997.C.Allscientistsacceptthedataingraph2exceptCharlesKeeling.D.JaniceFostersaysthatmorecarbondioxidewillmakeplantsgrowfaster.A新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Choosethebestanswers.A新课标人教602.WhichofthefollowingisDrJaniceFoster’sopinion?A.Theresultofthetemperatureincreasewillbeserious.B.Theamountofwarmingisnothingserious.C.Weneedn’tworryabouthighlevelsofcarbondioxide.D.Globalwarmingisanaturalphenomenon.A新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】2.WhichofthefollowingisD61Comprehending新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Comprehending新课标人教版选修六Book6Un62浓度单位新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】浓度单位新课标人教版选修六Book6Unit4Readi63Glancequicklyatthemagazinearticleandanswerthequestions.Whowrotethemagazinearticle?Whatisthenameofthemagazine?

SophieArmstrongwrotethemagazinearticle.ThenameofthemagazineisEarthCare.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Glancequicklyatthemagazine64Whatarethenamesofthethreescientistsmentionedinthearticle?

TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatarethenamesofthethre653.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?

Theydon'tagreewitheachother.Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】3.Whatdotheythinkaboutgl66

GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.

CharlesKeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】GeorgeHambleythinks67Whatarethetwographsabout?

GraphIshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.

Graph2isaboutthecarbondioxidecontentintheatmosphere,1958--1990.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatarethetwographsabout?68Whatisthemaintopicofthearticle?

Globalwarming/thewarmingoftheearth.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Whatisthemaintopicofthe692.True:3,5,6,7,8

False:1,2,4,9,10Correctsentences:1.Thetemperaturelastcenturyincreased

much.2.Noteveryonebelievesthatglobal

warmingiscausedbyhumanactivities.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】2.True:3,5,6,7,8新课标人教版选704.Naturalgasisnotagreenhousegas

butafossilfuel.9.GeorgeHambleythinksthatmorecarbondioxideisapositivethingand

itwillmakeplantsgrowfaster.10.Itisunknownwhattheeffectsof

globalwarmingwillbe.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】4.Naturalgasisnotagreenh71DebateInstructions●Getintogroupsofsix.Decidewhichthreeinyourgrouparegoingtoagreewiththestatement(GroupA)andwhichthreearegoingtodisagreewiththestatement(GroupB).新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Debate新课标人教版选修六Book6Unit4Rea72●GroupAdiscusswhytheyagreewiththestatement;GroupBdiscusswhytheydisagree.●GroupAandBgettogether.Telleachotherthereasonswhyagreeordisagreewiththestatement.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】●GroupAdiscusswhytheyagr73Supplementarymaterialsfordebating

Globalwarming1.Theplanethaswarmedanywherefrom0.5to1.0°C(1to2°F)overthelastcentury.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Supplementarymaterialsforde74Thissmallamountmakesahugedifference,causingglacierstomeltand,potentially(潜在的),sealeveltorise.Wecouldseeevenmoreofthisinthefuture,(maybeanother3°C,or5°F)新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Thissmallamountmakesah75globalwarming新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】globalwarming新课标人教版选修六Book6U76globalwarming新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】globalwarming新课标人教版选修六Book6U772.Adefinitionofglobalwarmingwouldhavetoincludeameasurable,consistenttemperaturerise,liketheonewehaveseeninrecenthistory.Aquestionremains–Isitanunusualchange?Muchdebateaboutthatone.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】2.Adefinitionofglobalwarm783.Theearthgetsonekindofenergy(visiblelight)fromthesunandgivesoffanotherkind(infrared红外线).Thiskindiswhatgetstrappedby"greenhousegases"(GHG's)intheatmosphere.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】3.Theearthgetsonekindof79Greenhousegases4.Theglobalwarminggreenhouseeffectreallyisabogus(假的)term.Agreenhousekeepswarmbyphysicallytrappingtheairinsideandpreventingconvection(对流).Theatmospherehelpskeeptheplanetwarmbytrappingoutgoingradiationinstead.新课标人教版选修六Book6Unit4Reading【公开课课件】新课标人教版选修六Book6Unit4Reading【公开课课件】Greenhousegases新课标人教版选修六Book805.TheleadinggassesareCarbon-dioxide,Methane,Ozone(臭氧)andNitro