高中英语 选修六 4.2《Unit 4　Language Study 》课件.ppt

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1、新课标人教版课件系列《高中英语》选修(模块）6-4.2LanguageStudyAsampleposterFightglobalwarmingCutdownonenergyCutdownoncarbondioxide●Notusingit...?Turnitoff.●Don'tturntheheatup,putonajacket.●Walkorrideabike.●Recycle.●Buyproductsmadefromrecycledmaterials.●Buyenergy-savingproducts.●Planttrees.●Talk

2、aboutglobalwarming.Discoveringusefulwordsandexpressions(P28)Gooverthenewwordsandphrasesintheprevioussections.Thencompleteeachsentencewithoneofthosenewwordsorphrases.11.CharlesKeelingcollected______onthecarbondioxidecontentintheatmosphereoveraforty-yearperiod.Hefoundthatthe

3、amountofcarbondioxide_______increasingduringthattime.datakepton2.Althoughweareburningcoalinhuge_________everyyear,wewon't________ofitforcenturies.3.Iftheamountofgreenhousegasescontinuesto_______wecouldbefacingaglobal__________.quantitiesrunoutbuildupcatastrophe4.Manyscient

4、istsbelievethatglobalwarminghas__________throughtheburningoffossilfuels.Theydonotthinkthatignoringtheissueisworththe____.comeaboutrisk5.______describesweatherconditionsoveraperiodofyearsinaparticularplace.Climate6.The_____________ofarisingsealevelwouldbewidespreadflooding.

5、7.TheuseofenergyinSusanna'scountryislow______________theuseofenergyintheUSA.consequencecomparedto8.Thewarmingoftheearthisa_____________thatcausesgreatconcern.9.The________showstemperaturechangesduringthe20thcentury.10.Onehectareofforestcanabsorb23tonsofcarbondioxide____yea

6、r.phenomenongraphperLookatthetwographsonpage26.Thencompletetheparagraphsaboutthemwithappropriatewords.Thefirstgraphshowstheglobal____________between______and_____.2temperature18602000Thetemperature_________anddecreasedoverthisperiodbutonthewholeit______byaroundonedegreeFah

7、renheit.Duringthistime,theearthreachedits______temperatureinabout_____anditshighestin2000.increasedroselowest1910Therewasasteady_______inthetemperatureduringthetwentyyearsafter1980.Wecanseefromthegraphthattheearthhasbecome________sinceearlylastcentury.Thesecondgraphshowsth

8、eamountof_____________intheincreasewarmercarbondioxideatmospherefrom_____to_____.Thecarbo