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1、Unit 3ClimateDiscussion n n1.What is weather?n n2.What is climate?n n3.Discuss the climate and weather conditions of your hometown.n n4.What measures can we take to reduce the greenhouse emissions by leading a low-carbon lifestyle?Weather vs.Climaten nWeather is defined as the atmospheric conditions
2、 in a location at a given point in time.Weather takes place in the troposphere（对流层）.n nClimate refers to the long term weather trends in an area.Measuring WeatherMeasurementMeasurementInstrumentInstrumentTemperatureTemperatureThermometer Thermometer 温度计温度计Air PressureAir PressureBarometer Barometer
3、气压计气压计Wind(direction)Wind(direction)Wind Vane Wind Vane 风向标风向标Wind(speed)Wind(speed)Anemometer Anemometer 风速计风速计Relative HumidityRelative HumidityHygrometer Hygrometer 湿度计湿度计PrecipitationPrecipitation降雨量降雨量Rain Gauge Rain Gauge 雨量测量器雨量测量器Word Pretestelusiveelusive adj.adj.1)1)difficult to find,catch
4、,or achievedifficult to find,catch,or achieve 难以分辨（或捉摸、找到）的，易逃脱的难以分辨（或捉摸、找到）的，易逃脱的 e.g.The poems meaning is e.g.The poems meaning is elusiveelusive.an an elusiveelusive criminal criminal 2)difficult to remember or recall2)difficult to remember or recall 不易记住的，易忘的不易记住的，易忘的the the elusiveelusive thoug
5、ht he had had moments thought he had had moments beforebefore他刚才的一个转瞬即逝的想法他刚才的一个转瞬即逝的想法n ninstill=instil v.gradually but firmly establish(an idea or attitude,especially a desirable one)in a persons mind 逐渐灌输，逐步培养（尤指好的思想、态度）e.g.instill knowledge into pupils minds I consider it important to instill a
6、pride in the players.diminishdiminish v.v.1)1)make or become lessmake or become less 减少，减小，缩减，降低减少，减小，缩减，降低 e.g.We should try to e.g.We should try to diminishdiminish the cost of the cost of production.production.Our enthusiasm Our enthusiasm diminisheddiminished as time as time went on.went on.2)ma
7、ke(someone or something)seem less 2)make(someone or something)seem less impressive or valuableimpressive or valuable 贬低（某人，某物）的形象，减少（某人，某贬低（某人，某物）的形象，减少（某人，某物）的价值物）的价值 e.g.Dont e.g.Dont diminishdiminish the importance of the importance of his contribution.his contribution.schemescheme n.1)a large-sc
8、ale systematic plan or n.1)a large-scale systematic plan or arrangement for attaining some arrangement for attaining some particular object or putting a particular particular object or putting a particular idea into effect idea into effect 计划，规划，方案计划，规划，方案 e.g.When you began to work,you might e.g.Wh
9、en you began to work,you might work out a practical work out a practical schemescheme.2)a secret or underhand plan;a plot 2)a secret or underhand plan;a plot 阴谋，诡计阴谋，诡计 e.g.Police uncovered a e.g.Police uncovered a schemescheme to steal to steal paintings worth more than$250,000.paintings worth more
10、 than$250,000.v.v.策划策划;图谋图谋 Text In nWhat do“more voices”refer to in the title?n nWhat are fossil fuel sources mentioned in this text?n nWhat is the significance of the Doha meeting?n nIs the Doha meeting a breakthrough in controlling global emissions?Semantic Variations will will n.n.1)a strong det
11、ermination1)a strong determination意志；毅力意志；毅力 e.g.e.g.WillWill can conquer habit.can conquer habit.Shell need an iron Shell need an iron willwill in order to in order to succeed.succeed.2)intention or wish2)intention or wish决断决断,意图意图,决心决心 Where there is a Where there is a willwill,there is a way.,the
12、re is a way.What is his What is his willwill in the matter?in the matter?3)a legal document containing instructions 3)a legal document containing instructions as to what should be done with ones as to what should be done with ones money and property after ones deathmoney and property after ones deat
13、h 遗嘱遗嘱 course n.n.1)1)The general direction in which ones The general direction in which ones actions are movingactions are moving 进展；进程；过程；经过进展；进程；过程；经过 the the coursecourse of history of history 2)A part of a meal served at one time 2)A part of a meal served at one time （一）道（菜）（一）道（菜）Guests are of
14、fered a choice of main Guests are offered a choice of main coursecourse.3)A set of lessons or studies 3)A set of lessons or studies （某一学科的）讲课；课程（某一学科的）讲课；课程 a business studies a business studies coursecourse spell n.n.1)1)a.)a form of words used as a magical a.)a form of words used as a magical char
15、m or incantation charm or incantation 符咒，咒语符咒，咒语 b.)A condition caused by magical power b.)A condition caused by magical power （因咒语而引起的）着魔（因咒语而引起的）着魔 e.g.The magician may e.g.The magician may cast a spell oncast a spell on (施咒语施咒语)himself.)himself.2)An unbroken period of time 2)An unbroken period of
16、 time (某事物持续的某事物持续的)一段时间一段时间 a a spellspell of fine weather of fine weather3)Forming words with the letters in the 3)Forming words with the letters in the correct order correct order 拼写拼写 plant n.1)植物2)Heavy machinery重型机械,机械设备 e.g.They have made a huge investment in new plant.3)A factory工厂 a power p
17、lant a car plant release n.1)A new film or record that has been issued发行的新影片(或录音制品等)e.g.The film was withheld for two years before its release.2)A process that liberates or discharges something 释放,排放,解除 After my examination I had a feeling of release.3)A news item or document that has been made avai
18、lable新闻发布；新闻稿 elements n.n.1)1)The weather or the powers of nature The weather or the powers of nature （尤指强风、暴雨等恶劣）天气（尤指强风、暴雨等恶劣）天气 e.g.We battled against the e.g.We battled against the elementselements.2)A particular group of people2)A particular group of people 某群人或组织中的一组，一伙某群人或组织中的一组，一伙 extreme right-wing extreme right-wing elementselements in the in the army army 3)The first or most simple things one has to 3)The first or most simple things one has to learn about a subject learn about a subject 基本组成部分，要素基本组成部分，要素