高级时事英语.ppt

1、Environment,OurEnvironment,Attheendofthisunit,youshouldbeableto:InterpretmeaningfromcontextRequest/explainreasonsExpressfears/worriesCriticize/respondtocriticismSuggestsolutions,Warmup,Whatdoyouthinkaboutthefollowingstatementabouttheenvironmentalchallengewearefacingnow?Weshouldbegoodguestsonearth,ne

2、ithertoodemandingnordisturbingitsdelicatebalance.Weshouldallowittorenewitselfforthosewhoaretofollow.,Whatdoesenvironmentmeantoyou,Allthecircumstances,people,things,andeventsaroundthemthatinfluencetheirlifeTheparticularsurroundingsinwhichtheyliveorexist,especiallyaregionthathasparticularland,sea,orwe

3、atherconditions.Thenaturalworldofland,sea,air,plantsandanimalsthatexistsaroundtownsandcities.,Activity1Land,Sea,andAir,Task1ClassifyingMarine:OforrelatingtotheseaInstitutionaladj.制度上的SocietalOforrelatingtothestructure,organization,orfunctioningofsociety.Climaticadj.气候上的Ozonedepletion,Activity1Land,S

4、ea,andAir,Malarian.疟疾,瘴气Agro-industrialresidue残余渣Pesticiden.杀虫剂Task2InterpretingTitlesFume1Toemitfumes.2Tofeelorshowresentmentorvexation.(pun),Activity1Land,Sea,andAir,Squirreln.松鼠Beechwoodn.山毛榉ClutterTorunormovewithbustleandconfusion.Vessel船；Prowl.巡游Diminishingdiminishing逐渐缩小的CatchSomethingcaught:捕

5、获物：,Activity1Land,Sea,andAir,Task3SelectingTitlesExtract1Snub-nosed鼻子扁平的,塌鼻的Periln.危险Seminarn.研究会,讨论发表会Hectaren.公顷（等于1万平方米）Primevalforestadj.原始的,Activity1Land,Sea,andAir,Extract2Sustained持续的;IntensifyTomakeintenseormoreintense:增强或加强：Extract3DominateTooverlookfromaheight:俯视DwarfTocausetoappearsmallby

6、comparison:使显矮小通过比较使显得矮小：,Activity1Land,Sea,andAir,Rugby拉格比市Cement水泥StackAgroupofchimneysarrangedtogether.一排烟囱排列在一起的一群烟囱Emissionairpollutionemission空气污染排放(物)DisputeToargueabout;debate.就进行争论；辩论,Activity1Land,Sea,andAir,InhaleTodraw(airorsmoke,forexample)intothelungsbybreathing;inspire.吸入通过呼吸吸进（如空气或烟）

7、肺内；吸气Coke焦（炭）Extract4MuggyWarmandextremelyhumid.湿热的温暖且十分潮湿的,Activity1Land,Sea,andAir,SwelterTosufferfromoppressiveheat.热得难受，中暑Nudge接近putonthealert(军队)处于戒备状态Home-brewed自家酿造的Extract5Luftwaffen.(纳粹时代的)德国空军,Activity2Waste,Inrecentyears,withthedevelopmentofoureconomymoreandmoreenvironmentalproblemshavear

8、isen.Manyofushavenoticedthatpollutionofvariouskindsisaseriousprobleminoursociety.Task1yourexperienceofpollutionproblemsaroundyouAir,water,soilandnoisepollution,Activity2Waste,Task2listeningpracticeWordsfromthetapescriptsRubbishdumpAdoreTolikeverymuch:Stallholdern.1.摊贩Returnableadj.可退回的Reservoirlitte

9、r,Activity2Waste,Polythene化聚乙烯PurchasePolystyrenen.聚苯乙烯Syntheticadj.合成的,人造的,Biodegradableadj.生物所能分解的Decomposev.分解,(使)腐烂,Activity3EcologicalDisaster,Task1DistinguishingTypesofTextNATIONFACINGECOLOGICALDISASTERPre-readingactivityWhatkindsofecologicalproblemsdoyouthinkChinaisfacingnow?WordsandphrasesPr

10、oportionate成比例的,Symposiumn.讨论会,座谈会Waterway航道可航行之水体，如河流、海峡或运河potableFittodrink.StenchAstrong,foulodor;astink.ExcrementWastematerialSeweragen.排水设备,污水Ration定量配给,Chinasecologicalproblemsareproportionatewiththecountrysgiantsize.(theecologicalproblemsareveryseriousinChina.),Tropicalrainforest,Atropicalrai

11、nforestconsistsmainlyoftallbroad-leaved,evergreentrees.Itsawarm,wetplacewithnoseasons-justaconstantclimateofhightemperaturesandheavyrain.Theseconditionsproducehumiditywhichencouragessucharichvarietyofplantsandwildlifethatitsthemostdiversehabitatintheworld.,Clearingtherainforest,Tropicalrainforestsar

12、eunderthreatinmostpartsoftheworld.Hugeareasarecutdownfortimber,orclearedforhydro-electricdamprojectsandmining.Oncedevelopershavebuiltroadsintotheforests,settlersmoveintoclearmoreareasforfarmland.Largeclearingsaremadebyburningtrees,whichreleaseshugequantitiesofsmokeandcarbondioxide.Thisupsetsthedelic

13、ate,Clearingtherainforest,BalanceoftheEarthsatmosphere,andleadstoglobalwarmingtheso-calledgreenhouseeffect.Theforestcanre-establishitselfinsmallclearingsbutlargeonesareneverreclaimed.Whenwholeareashavebeencutdown,thelandbecomesarid,likeadesert.,GreenhouseEffect,Factories,farms,carsandmanyotherthings

14、pumpgasesintotheair.SomeofthesetrapsomuchoftheSunsheatthattheEarthiswarminguplikeagiantgreenhouse.Itiscausedbycertaingasesintheatmosphere,particularlycarbondioxide,whichactliketheglassinagreenhouse.Likeglass,thesegasesletthroughvisiblelightfromtheSunsradiationtowarmthe,GreenhouseEffect,Theground.But

15、,alsolikeglass,theytrapinvisibleinfra-redradiation(heat)fromtheEarththatwouldotherwiseescapebackintospace.Withoutthiseffect,Earthwouldbe30centigradecoderonaverage,andlifewouldbeimpossible.,GreenhouseEffect,NaturalsystemshavekeptlevelsofcarbondioxidesosteadythattheEarthstemperaturehasnearlyalwaysbeen

16、justright.ButsincetheIndustrialRevolutionbegansome200yearsago,levelshavebeenrising.Over80%oftheextracarbondioxidecomesfromburningfossilfuelsoil,gasandcoal-infactories,powerstations,GreenhouseEffect,Transportationandhomes.Therestcomesfromdestroyingforests.Treesuseupthegaswhenalive,butreleaseitwhentheyarefelledandburned.,Disappearingrainforests,AsareaofrainforestaboutthesizeofIrelandmaybelosteachyear.Manytreesarecutandsetalight(slasha