选修六第四单元 warming up and reading

Unit4GlobalWarmingWarmingupandReadingIMakealistofthingsthatuseenergyinyourhome,inyourschool,oranyotherplacesyoucanthinkof.stovelightthingsthatuseenergyinyourhomemicro-waveovencassetteplayer/taperecorderheatingtelevisionhairdryervideoplayerfridgecomputerwashingmachineelectricstoveairconditionerwaterheaterinduction/ricecooker1.Sourcesofenergy2.Renewable/non-renewableGroupwork:Makealistof……

CoalOilNaturalgasUranium[化]铀Wind(windpower)Sun(solarenergy)Water(hydro-electricpower)Plantwaste植物性废物(biomassenergy生物团能量)Hotspringsorgeysers间歇泉

(geothermalenergy)Thesea(tidalenergy潮汐能)FossilfuelsNon-renewableRenewableWhatarefossilfuels?Fossilfuelsareancientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.Theyarealsoknownasnon-renewable

energy

becauseoncetheyarerunoutof/runout,theycannotberenewed.Whatarethesebuildingsmadeofandwhataretheyusedfor?

Theyaremadeofglassandusedforgrowingplants,especiallyduringcoldweather.GreenhouseHowdoesitwork?Theglasstrapstheheatfromthesunandkeepsitfromescaping,makingthegreenhouseheatupsothatplantscangrowthroughoutthecoldperiod.Greenhousegases!What’sgreenhouseeffect?Greenhousegases,mainlyincludingcarbondioxideandmethame,performthesamefunctionastheglassinagreenhouse---Theytraptheheatofthesunandkeeptheairsurroundingtheearthwarm.Itiscalledthegreenhouseeffect.Homework:1.Previewthenewwordsinunit4.2.SurftheInternettolearnmoreaboutglobalwarming.TheEarthIsBecomingWarmer–

ButDoesItMatter?twographs,(图表）themaintextintwocolumns,(栏）Thetitle-aquestion;theparagraphonthetop

inbold

（粗体）,...FeaturesofthearticleWhereisthepassageprobablytakenfrom?A.atravelguide.B.asciencemagazine.C.Anewspaper.D.anadvertisementsection.

Duringthe20thcenturythetemperatureoftheearthroseaboutonedegreeFahrenheit.Thatprobablydoesnotseemmuchtoyouormebutitisarapidincreasewhencomparedtoothernaturalchanges.Sohowhasthiscomeaboutanddoesitmatter?EarthCare’sSophieArmstrongexploresthesequestions.Topicsentence?Generallyspeaking,theparagraphonthetopisabrief___________tothepassage.ItiscalledEditor’sNote.introductionthetemperatureoftheearthroseaboutonedegreeFahrenheit.

Whatismainlydiscussedinthepassage?

A.Howserioustheglobalwarmingcouldbe.

B.Whateffectsoftheglobalwarmingwillbe.

C.Whathascausedtheglobalwarmingandwhetheritmatters.

D.Whattheglobalwarmingis.Readingtips—skimthetitleandPara1:

Title:THEEARTHISBECOMINGWARMER–BUTDOESITMATTER?Para1:…howhasthiscomeaboutanddoesitmatter?happenFastReadingScanning1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?2.Whatarethenamesofthethreescientistsmentionedinthearticle?3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?4.Whatarethetwographsabout?SophieArmstrongwrotethemagazinearticle.Thenameofthemagazineis“Earthcare”.2.Whatarethenamesofthethreescientistsmentionedinthearticle?TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?Therearesomeverydifferentattitudesamongscientiststowardsthisissue.Somethinktheeffectswillbeterrible,whilesomeothersbelievethatweshouldnotworryaboutit.4.Whatarethetwographsabout?Graph1showsthetemperatureincreaseofonedegreeFahrenheitfrom1860to2000.Graph2showsthecarbondioxidecontentintheatmospherefrom1957to1997.Graph1:Graph2:skimming(6mins.)Skimthetexttodividethewholepassageinto4partsandsummarisethemainideaofeachpart.mainideaPart1(para1)Introducethetopic---theissueofglobalwarmingPart2(para2-5)Part3(para6)Part4(para7)ExplainhowglobalwarmingcomesaboutListtwodifferentattitudesamongscientiststowardsglobalwarmingIt’suptoreaderstothinkanddecidewhetherpeopleshoulddosthaboutglobalwarmingornot4partsReadingcomprehension(5mins.)1.Howhastheglobalwarmingcomeabout?2.Whataretheeffectsofglobalwarming?1.Howhastheglobalwarmingcomeabout?①Humanactivity---burningoffossilfuels.②Greenhouseeffect---greenhousegases---weneedthosegases.③

Theproblembeginswhen

hugequantitiesofextracarbondioxide

areaddedtotheatmosphereFrom1957to1997---wentupfromaround315partspermilliontoaround370partspermillion.2.Whataretheeffectsofglobalwarming?④Encourageagreaterrangeofanimals.①Thesealeveltorise.②Severestorms,floods,droughts,famines,thespreadofdiseases,anddisappearanceofspecies.③Makeplantsgrowquicker.Cropswillproducemore.A

:Weshoulddosomethingaboutglobalwarming.B:Weshoulddonothingaboutglobalwarming.DebateWhatshouldwedotoprotectourearth?Discussion:1.Reducetheburningoffossilfuels…Turnoffthelightwhenleavingaroom.Turnoffanelectricalappliancewhennotusingit.Don’tleavethetaponwhenwashinghands.Separategarbage.Reduce,reuseandrecycle.Useenvironment-friendlyshoppingbags.Walkorrideabicycleorusethepublictransportinsteadofdriving.Carpool（拼车）.Wearwarmclothesinsteadofturningontheairconditioner.Planttrees.Makeapostertoeducatepeopletoconserve（节约）energy.Helpme,helpyou,helpeveryone.ReturnGREENtotheearth!Let'sstartfromyou,fromme,andfromeachofus.ReturnGREENtotheearth!Homework:

1.Underlinetheimportantanddifficultlanguagepointsofthispassage.2.Readthereadingpassageasmanytimesasyoucan.3.Writeapassageabouttheglobalwarmingandwhatweshoulddoinourdailylifetoprotecttheearth.Detailed-ReadingReadthearticleindetailsandfinishthefollowingtask.listening1.Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977?

A.Dr.JaniceFoster.

B.CharlesKeeling.

C.GeorgeHambley.

D.SophieArmstrong.Listentothereadingpassageanddosomechoices.2.Theauthorprobablyagreesthat____

A.actuallyglobalwarmingisgoodforman.

B.weshoulddonothingabouttheglobalwarming.

C.catastropheswillhappeniftheglobekeepsonwarming.

D.alotremainstobefoundoutabouttheeffectsofglobalwarming.Turnoffthelightwhenleavingaroom.Don’tleavethetaponwhenwashinghands.TurnofftheTVinsteadofleavingitonstandby.Separategarbage.Useenvironment-friendlyshoppingbags.Walkorrideabicycleorusethepublictransportinsteadofdriving.Carpool（拼车）.Reduce,reuseandrecycle.Wearwarmclothesinsteadofturningontheairconditioner.Plantatree.Makeapostertoeducatepeopletoconserve（节约）energy.Makelawstolimitcarbonemissions.Stopdeforestation.Promotenewforestgrowth.Promoterecycling.Dealwithwasteproperly.Promotethedevelopmentofrenewableenergies.Fundrelatedresearches.Encouragepublictransportation.Encourageproductionofenergy-efficientvehicles.Designatebus-onlyorbicycle-onlylanes.Encouragetheuseordevelopmentofrenewableenergies.Encouragetheconstructionofgreenbuildings.Windenergyisusedaspowertoproduceelectricity.

WindmillsWheredoes