英语泛读教程第2册第三单元Unit-3-Recycling课件.ppt-(课件无音视频)

1、Extensive readingUnit 3 Book 2 Recycling Learning objectivesIn this unit you will:learn about waste recyclingunderstand the environmental problems bettertake a test on fast readinglearn about global warmingUnit overview Pre-reading discussionBackground informationText analysisPost-reading discussion

2、Notes to the textExercises Related informationPre-reading discussion1.What do you think is garbage?2.What should we do to deal with garbage?Background informationWhat is recycling?Recycling is the process of converting waste materials into reusable objects to prevent waste of potentially useful mate

3、rials,reduce the consumption of fresh raw materials,energy usage,air pollution(from incineration)and water pollution(from landfilling)by decreasing the need for“conventional”waste disposal and lowering greenhouse gas emissions compared to plastic production.Recyclable materialsRecyclable materials i

4、nclude many kinds of glass,paper,metal,plastic,tires,textiles and electronics.The composting or other reuse of biodegradable wastesuch as food or garden wasteis also considered recycling.Recyclable materials废纸废纸：报纸、书本纸、各种包装用纸、办公用纸、：报纸、书本纸、各种包装用纸、办公用纸、广告纸片、大小纸盒等（但纸巾和厕纸不能广告纸片、大小纸盒等（但纸巾和厕纸不能回收）回收）塑料塑料：

5、各种塑料袋、塑料瓶、塑料包装、泡沫塑料、：各种塑料袋、塑料瓶、塑料包装、泡沫塑料、一次性塑料餐盒餐具、硬塑料等一次性塑料餐盒餐具、硬塑料等 玻璃玻璃：玻璃瓶和碎玻璃片：玻璃瓶和碎玻璃片 金属金属：易拉罐、铁皮罐头盒、铅皮牙膏皮、废电池：易拉罐、铁皮罐头盒、铅皮牙膏皮、废电池等等 有机物有机物：落叶杂草、菜根果皮、鸡肠鱼肚、蛋壳鳞：落叶杂草、菜根果皮、鸡肠鱼肚、蛋壳鳞毛都可用来生产适用于种植毛都可用来生产适用于种植“绿色食品绿色食品”、城市绿化或家庭养花的优质有机肥料城市绿化或家庭养花的优质有机肥料 Classified collection of garbageOther wastes 不可回

6、收物不可回收物Recyclables 可回收物可回收物Text analysisDetermining the main idea.The main purpose of the text is to _.a.report some of the greener technologies in the worldb.explain the function of recycling programs in the United Statesc.provide information about recycling in the United Statesd.reveal the relatio

7、n between environmental protection and recyclingWhile-reading questions1.How many parts can the text be divided into?Whats the main idea of each part?2.Why is recycling one of the best environmental success stories of the late 20th century?3.Is recycling worth all the effort?4.What different attitud

8、es do people have toward recycling?5.Is recycling a fad or a new idea?How has recycling developed?6.How will recycling develop in the USA?Why?Text structureParts Contents Main ideas112Introduction to recycling237 Benefits of recycling3813 Historical development of recycling41416 National trends in r

9、ecyclingPart 1 IntroductionWhy is recycling one of the best environmental success stories of the late 20th century?Recycling is a nationwide,grassroots effort.Curbside recycling collection programs reach the majority of the American population.Diversion rate resulting from recycling and composting k

10、eeps increasing.Recycling boxes 3 feet long stacked end to end will reach the moon in 2005.Part 2 Benefits of recyclingIs recycling worth all the effort?The most successful programs are cost-effective and profitable.Recycling has already achieved many economic and environmental benefits.Recycling en

11、hances the sustainability of the planet and the future of our children.There are at least eight categories of benefits resulting from the recycling of solid waste.Part 3 Historical development of recyclingIs recycling a fad or a new idea?How has recycling developed?Part 3 Historical development of r

12、ecyclingIs recycling a fad or a new idea?Recycling isnt a fad.It has been one of the growth industries in the past and it is still developing rapidly.Recycling isnt a new idea.It is as old as recorded history.Part 3 Historical development of recyclingHow has recycling developed?World Wars I and II:A

13、fter the war:By the late 1960s:In the early 1970s:In the 1980s:brief surgesdeclinerock-bottoma new wave of interestrapid growth resulting from the combined effects of landfill shortages,resistance to accepting out-of-state garbage,and growing national attentionPart 3 Historical development of recycl

14、ingHow has recycling developed?By the mid-1990s:industry making multimillion dollar investmentsconsumers being increasingly awaregovernment agencies ensuring recyclings viabilityFrom 1990 to 1997:achieve double-digit growth Part 4 National trends in recycling How will recycling develop in the USA?Wh

15、y?The cost-effectiveness of local recycling programs will be improved throughout the country.The national trends in recycling are reflected in the experience of many cities and towns.e.g.Ann Arbor:high volume of diversion helps hold down the costs.Notes to the text21the bottom line Para.3,Line 1used

16、 to tell someone what the most important part of a situation is,or what the most important thing to consider is 底线底线 e.g.In radio,you have to keep the listener listening.Thats the bottom line.be a measure of somethingPara.3,Line 2formal be a sign of the importance,strength,etc.of something,or a way

17、of testing or judging something衡量衡量的方法、标准、准则的方法、标准、准则 e.g.Exam results are not necessarily a true measure of a students abilities.hit/reach rock bottom Para.10,Line 4informal to become as unhappy,unpleasant,or unsuccessful as it is possible to be 降到谷底，降到最低点降到谷底，降到最低点 e.g.My personal life had hit roc

18、k bottom.Earth Day Para.11,Line 4Earth Day is an annual event,celebrated on April 22,on which day events worldwide are held to demonstrate support for environmental protection.It was first celebrated in 1970,and is now celebrated in more than 192 countries each year.世界地球日世界地球日Earth day flagUS Enviro

19、nmental Protection AgencyPara.11,Line 8 The United States Environmental Protection Agency(EPA or sometimes USEPA)is an agency of the U.S.federal government which was created in 1970 for thepurpose of protecting human health and the environment by writing and enforcing regulations based on laws passe

20、d by Congress.美国环境保护局美国环境保护局 shoot up P.41,4th line to increase very quickly and suddenly;rocket 迅速成长；迅速增加迅速成长；迅速增加 e.g.Demand for water has shot up by 70%over the last 30 years.bottle bill Para.14,Line 7The term“bottle bill”is actually another way of saying“container deposit law.”A container deposi

21、t law requires a minimum refundable deposit on beer,soft drink and other beverage containers in order to ensure a high rate of recycling or reuse.退瓶法退瓶法bottle bill Para.14,Line 7Post-reading discussion1.What do you think of the environmental problems today?Do you have any solutions?2.What is the sig

22、nificance of recycling?What can we do to better protect our natural resources,improve our quality of life,and strengthen our economy?Related informationEnvironmental ProblemsA variety of environmental problems now affect our entire world.As globalization continues and the earths natural processes tr

23、ansform local problems into international issues,few societies are being left untouched by major environmental problems.Environmental ProblemsSome of the largest problems now affecting the world are:Acid rainAir pollution Global warmingHazardous waste Ozone depletionWater pollutionOverpopulation Ove

24、rfishingRain forest destructionExtinction of speciesEnvironmental ProblemsAcid rainAir pollutionHazardous wasteWater pollutionOverpopulationOverfishing Environmental Problems大海雀大海雀斑斑驴驴渡渡鸟渡渡鸟 洞穴狮洞穴狮 Extinction of speciesExercises Comprehending the text A.d B.15 b c c a d610 d d c a a C.15 b a d c d610 b b c d a 1112 c bFast reading 15 d b a c c610 a b d c b 1115 b d a b cHome reading 15 c a d c c69 d d a d