搜索
Unit4GlobalwarmingTheearthisbecomingwarmer-butdoesitmatter?Wedependonenergytodomanythingsinourdailylives.Canyoumakealistofsourcesofenergy?Warmingup:coalWaterpowerFossiloilpetrolSolarenergyWindpowerWindmill风车undergroundheat地热大亚湾核电站NuclearenergyWhichsourceiscleanerorhealthier?Whichsourceis“renewable”?Discussion:Coaloilwindsunnuclearwaterundergroundheat√√√√√√√√Doyouknowwhatitis?Agreenhouse!Whatisitusedfor?Pre-reading:Whatkeepstheearthwarm?Theearth’satmosphereWhathappentoourairnowadays?Fastreading:★Whowrotethearticle?What‘sthenameofthemagazine?★Whatarethenamesofthethreescientistsmentionedinthearticle?★Whatarethetwographsabout?★Dividethepassageintofourpartsandwritedownthemainideaofeachpart?(pairwork)Fastreading:★Whowrotethearticle?What‘sthenameofthemagazine?★Whatarethenamesofthethreescientistsmentionedinthearticle?★Whatarethetwographsabout?SophieArmstrong.EarthCare关爱地球.DrJaniceFoster,CharlesKeeling,GeorgeHambley.ThefirstgraphshowsthetemperatureincreasedbyonedegreeFahrenheitbetween1860and2000;Thesecondshowsthecarbondioxidecontentincreasedfrom1957to1997.MainideasofeachpartPart1(1)Thebackgroundofthisarticle.Part2(2-5)Explanationabouthowglobalwarmingcomesabout.Part3(6)Twodifferentattitudesamongscientiststowardsglobalwarming.Part4(7)Twochoicesofdealingwiththisproblem.Detailedreading:(useyourownwords)NameIdeasaboutglobalwarmingDrJaniceFosterCharlesKeelingGeorgeHambleyIdeasaboutglobalwarming1)Carbondioxidehascausedtheglobaltemperatureto__________.2)Anincreaseoffivedegreeswouldbea___________andcouldbe_____________.DrJaniceFostergoupcatastropheveryseriousIdeasaboutglobalwarmingGeorgeHambleyMorecarbondioxideisa__________thing,whichmakescrops__________moreandwillencourage______________________________.positiveproduceagreaterrangeofanimalsIdeasaboutglobalwarmingCharlsKeelingThecarbondioxidecontentoftheatmospherewentupfrom315partstoaround370partspermillion.Finishcomprehendingexercise2!Checktheanswers:Comprehending:TTFTTFWhataretheeffectofglobalwarming?Thesealeveltorise海水上涨Severestorms风暴Droughts干旱Famines饥荒Thespreadofdisease疫病Thedistinctionofspecies物种毁灭negativeeffect消极作用WhataretheeffectofglobalwarmingMakeplantsgrowfasterCropswillproducemoreEncourageagreaterrangeofanimals促使动物种群的丰富positiveeffect积极作用Afterwelearnthearticle,youarerequiredtoanswerthequestions:1.Whatisglobalwarming?Andgreenhouseeffect?2.whatisgreenhousegases?3.Whatistheattitudesofthescientists?4.Whatareyourgoingtodointhefuture?