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课件3新课标人教版选修六Book6-Unit4-Reading课件4Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.Agreenhouseismadeof5Howdoesitwork?

Theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping.Thismakesthegreenhouseheatupandsotheplantscangrowthroughoutthe

coldperiod.Howdoesitwork?6Whatarethe“greenhousegases”?

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

Theytrapheatfromthesunandthereforewarmtheearth.Whatdoyouthinkgreenhouse8MainideasofeachpartWritingtechniques(Paragraph1)Introduceadebateovertheissueofglobalwarming.RaisingaquestionReadingMainideasofeachpartWriting9MainideasofeachpartWritingtechniques(Paragraphs2---3)Illustratehowglobalwarmingcomesabout.Givingexamples,usinggraphs,explanation.MainideasofeachpartWriting10(Paragraphs4---5)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Givingexamples,makingcontrast.

(Paragraphs4---5)Listtwod11(Paragraph6)

It'suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.Usingaquestion,leavingreaderstothinkovertheissue.

(Paragraph6)It'suptore12Readthetextcarefullyandfillintheblanks.ScientistsOpinionJaniceFoster◆Weneed1______likecarbondioxide,methaneandwatervapour,butifweaddhuge2__________extracarbondioxidetotheatmospherebyburningfossilfuels,itwillcausethe3________________togoup.gasesquantitiesofglobaltemperatureReadthetextcarefullyandfi13ScientistsOpinionJaniceFoster◆Overthenext100yearstheamountofwarmingcouldbeaslowas1to1.5degreesCelsius,butitcouldbeashighas5degreesCelsius.◆Anincreaseoffivedegreeswouldbea4____________.catastropheScientistsOpinionJaniceFoster14ScientistsOpinionsGeorgeHambley◆Believesthatweshouldn’tworryabout5__________ofcarbondioxideintheair.◆Predictsthatanywarmingwillbemildwithfewbadenvironmental6___________.◆7_______thatmorecarbondioxideisactuallya8________thing,whichwillmakelifeforhumanbeingsbetter.highlevels

consequencesStatespositiveScientistsOpinionsGeorgeHambl15Choosethebestanswers.1.WhichofthefollowingisTRUEaccordingtothetext?A.ThetemperatureoftheearthincreasedaboutonedegreeFahrenheitduringthe20thcentury.B.Thecarbondioxidecontentintheairincreasedby70partspermillionfrom1957to1997.C.Allscientistsacceptthedataingraph2exceptCharlesKeeling.D.JaniceFostersaysthatmorecarbondioxidewillmakeplantsgrowfaster.AChoosethebestanswers.A162.WhichofthefollowingisDrJaniceFoster’sopinion?A.Theresultofthetemperatureincreasewillbeserious.B.Theamountofwarmingisnothingserious.C.Weneedn’tworryabouthighlevelsofcarbondioxide.D.Globalwarmingisanaturalphenomenon.A2.WhichofthefollowingisD17ComprehendingComprehending18浓度单位浓度单位19Glancequicklyatthemagazinearticleandanswerthequestions.Whowrotethemagazinearticle?Whatisthenameofthemagazine?

SophieArmstrongwrotethemagazinearticle.ThenameofthemagazineisEarthCare.Glancequicklyatthemagazine20Whatarethenamesofthethreescientistsmentionedinthearticle?

TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.Whatarethenamesofthethre213.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?

Theydon'tagreewitheachother.Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.3.Whatdotheythinkaboutgl22

GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.

CharlesKeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.GeorgeHambleythinks23Whatarethetwographsabout?

GraphIshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.

Graph2isaboutthecarbondioxidecontentintheatmosphere,1958--1990.Whatarethetwographsabout?24Whatisthemaintopicofthearticle?

Globalwarming/thewarmingoftheearth.Whatisthemaintopicofthe252.True:3,5,6,7,8

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

much.2.Noteveryonebelievesthatglobal

warmingiscausedbyhumanactivities.2.True:3,5,6,7,8264.Naturalgasisnotagreenhousegas

butafossilfuel.9.GeorgeHambleythinksthatmorecarbondioxideisapositivethingand

itwillmakeplantsgrowfaster.10.Itisunknownwhattheeffectsof

globalwarmingwillbe.4.Naturalgasisnotagreenh27DebateInstructions●Getintogroupsofsix.Decidewhichthreeinyourgrouparegoingtoagreewiththestatement(GroupA)andwhichthreearegoingtodisagreewiththestatement(GroupB).Debate28●GroupAdiscusswhytheyagreewiththestatement;GroupBdiscusswhytheydisagree.●GroupAandBgettogether.Telleachotherthereasonswhyagreeordisagreewiththestatement.●GroupAdiscusswhytheyagr29Supplementarymaterialsfordebating

Globalwarming1.Theplanethaswarmedanywherefrom0.5to1.0°C(1to2°F)overthelastcentury.Supplementarymaterialsforde30Thissmallamountmakesahugedifference,causingglacierstomeltand,potentially(潜在的),sealeveltorise.Wecouldseeevenmoreofthisinthefuture,(maybeanother3°C,or5°F)Thissmallamountmakesah31globalwarmingglobalwarming32globalwarmingglobalwarming332.Adefinitionofglobalwarmingwouldhavetoincludeameasurable,consistenttemperaturerise,liketheonewehaveseeninrecenthistory.Aquestionremains–Isitanunusualchange?Muchdebateaboutthatone.2.Adefinitionofglobalwarm343.Theearthgetsonekindofenergy(visiblelight)fromthesunandgivesoffanotherkind(infrared红外线).Thiskindiswhatgetstrappedby"greenhousegases"(GHG's)intheatmosphere.3.Theearthgetsonekindof35Greenhousegases4.Theglobalwarminggreenhouseeffectreallyisabogus(假的)term.Agreenhousekeepswarmbyphysicallytrappingtheairinsideandpreventingconvection(对流).Theatmospherehelpskeeptheplanetwarmbytrappingoutgoingradiationinstead.Greenhousegases365.TheleadinggassesareCarbon-dioxide,Methane,Ozone(臭氧)andNitrousOxide(一氧化二氮).Gasanalyzersshowtheconcentrationsofthisstuffhaveincreasedsomewhatsincethebeginningoftheindustrialrevolution.5.TheleadinggassesareCarb376.ThegreenhouseeffectraisestheaveragetemperatureoftheEarthbymorethan30degrees,sowithoutittheEarthwouldbeaverycoldplace!6.Thegreenhouseeffectraises38greenhouseeffectgreenhouseeffect39greenhouseeffectgreenhouseeffect40GREENHOUSEFeelinghelplesstodoanythingaboutglobalwarming?Findouthowonefamilycuttheirownpersonalgreenhouse-gasemissionsby65percent--andhowyoucandothesame.GREENHOUSE41greenhouseeffectgreenhouseeffect42

Homework

1.Readthepassageagainandreviewthenewwordsandexpressions.2.Preparethedebateingroups.3.PreviewUsingLanguage--WHATCANWEDOABOUTGLOBALWARMING?Homework43ReadingReading44Whatisthegreenhousemadeandusedfor?Whatisthegreenhousemade45新课标人教版选修六Book6-Unit4-Reading课件46新课标人教版选修六Book6-Unit4-Reading课件47Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.Agreenhouseismadeof48Howdoesitwork?

Theairinsideiswarmbecausetheglasstrapstheheatfromthesunandkeepsitfromescaping.Thismakesthegreenhouseheatupandsotheplantscangrowthroughoutthe

coldperiod.Howdoesitwork?49Whatarethe“greenhousegases”?

Intheatmospheresurroundingtheearththerearegases,whicharecalled“greenhousegases”,includingcarbondioxide,methane(甲烷,沼气)andwatervapor.Whatarethe“greenhousegases50Whatdoyouthinkgreenhousegasesdo?

Theytrapheatfromthesunandthereforewarmtheearth.Whatdoyouthinkgreenhouse51MainideasofeachpartWritingtechniques(Paragraph1)Introduceadebateovertheissueofglobalwarming.RaisingaquestionReadingMainideasofeachpartWriting52MainideasofeachpartWritingtechniques(Paragraphs2---3)Illustratehowglobalwarmingcomesabout.Givingexamples,usinggraphs,explanation.MainideasofeachpartWriting53(Paragraphs4---5)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Givingexamples,makingcontrast.

(Paragraphs4---5)Listtwod54(Paragraph6)

It'suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.Usingaquestion,leavingreaderstothinkovertheissue.

(Paragraph6)It'suptore55Readthetextcarefullyandfillintheblanks.ScientistsOpinionJaniceFoster◆Weneed1______likecarbondioxide,methaneandwatervapour,butifweaddhuge2__________extracarbondioxidetotheatmospherebyburningfossilfuels,itwillcausethe3________________togoup.gasesquantitiesofglobaltemperatureReadthetextcarefullyandfi56ScientistsOpinionJaniceFoster◆Overthenext100yearstheamountofwarmingcouldbeaslowas1to1.5degreesCelsius,butitcouldbeashighas5degreesCelsius.◆Anincreaseoffivedegreeswouldbea4____________.catastropheScientistsOpinionJaniceFoster57ScientistsOpinionsGeorgeHambley◆Believesthatweshouldn’tworryabout5__________ofcarbondioxideintheair.◆Predictsthatanywarmingwillbemildwithfewbadenvironmental6___________.◆7_______thatmorecarbondioxideisactuallya8________thing,whichwillmakelifeforhumanbeingsbetter.highlevels

consequencesStatespositiveScientistsOpinionsGeorgeHambl58Choosethebestanswers.1.WhichofthefollowingisTRUEaccordingtothetext?A.ThetemperatureoftheearthincreasedaboutonedegreeFahrenheitduringthe20thcentury.B.Thecarbondioxidecontentintheairincreasedby70partspermillionfrom1957to1997.C.Allscientistsacceptthedataingraph2exceptCharlesKeeling.D.JaniceFostersaysthatmorecarbondioxidewillmakeplantsgrowfaster.AChoosethebestanswers.A592.WhichofthefollowingisDrJaniceFoster’sopinion?A.Theresultofthetemperatureincreasewillbeserious.B.Theamountofwarmingisnothingserious.C.Weneedn’tworryabouthighlevelsofcarbondioxide.D.Globalwarmingisanaturalphenomenon.A2.WhichofthefollowingisD60ComprehendingComprehending61浓度单位浓度单位62Glancequicklyatthemagazinearticleandanswerthequestions.Whowrotethemagazinearticle?Whatisthenameofthemagazine?

SophieArmstrongwrotethemagazinearticle.ThenameofthemagazineisEarthCare.Glancequicklyatthemagazine63Whatarethenamesofthethreescientistsmentionedinthearticle?

TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.Whatarethenamesofthethre643.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?

Theydon'tagreewitheachother.Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.3.Whatdotheythinkaboutgl65

GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.

CharlesKeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.GeorgeHambleythinks66Whatarethetwographsabout?

GraphIshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.

Graph2isaboutthecarbondioxidecontentintheatmosphere,1958--1990.Whatarethetwographsabout?67Whatisthemaintopicofthearticle?

Globalwarming/thewarmingoftheearth.Whatisthemaintopicofthe682.True:3,5,6,7,8

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

much.2.Noteveryonebelievesthatglobal

warmingiscausedbyhumanactivities.2.True:3,5,6,7,8694.Naturalgasisnotagreenhousegas

butafossilfuel.9.GeorgeHambleythinksthatmorecarbondioxideisapositivethingand

itwillmakeplantsgrowfaster.10.Itisunknownwhattheeffectsof

globalwarmingwillbe.4.Naturalgasisnotagreenh70DebateInstructions●Getintogroupsofsix.Decidewhichthreeinyourgrouparegoingtoagreewiththestatement(GroupA)andwhichthreearegoingtodisagreewiththestatement(GroupB).Debate71●GroupAdiscusswhytheyagreewiththestatement;GroupBdiscusswhytheydisagree.●GroupAandBgettogether.Telleachotherthereasonswhyagreeordisagreewiththestatement.●GroupAdiscusswhytheyagr72Supplementarymaterialsfordebating

Globalwarming1.Theplanethaswarmedanywherefrom0.5to1.0°C(1to2°F)overthelastcentury.Supplementarymaterialsforde73Thissmallamountmakesahugedifference,causingglacierstomeltand,potentially(潜在的),sealeveltorise.Wecouldseeevenmoreofthisinthefuture,(maybeanother3°C,or5°F)Thissmallamountmakesah74globalwarmingglobalwarming75globalwarmingglobalwarming762.Adefinitionofglobalwarmingwouldhavetoincludeameasurable,consistenttemperaturerise,liketheonewehaveseeninrecenthistory.Aquestionrema