Unit 2 Building the future Reading 课件-2025-2026学年高中英语译林版选修第二册

高中英语译林版(2020)选修第二册课件 Unit 2 Building the future Reading Page 16-19 Renewable energy : a gift for the future 制作者：桂东一中　李宇平 ◆ 内容分析 【What】本板块语篇的话题是“可再生能源”，介绍了可再生能源的相关知识，包括其种类、优点、应用现状、面临的挑战及可能的解决方法，并提出可再生能源能够让未来世界更加绿色、健康。 【Why】本文旨在增进学生对可再生能源的认识和了解，理解中国在这方面获得的成就，以及开发利用可再生能源面临的一系列挑战和相应的解决方法，帮助我们认识到开发可再生能源对人类社会和自然环境的重要意义，从而培养我们的社会责任感。 【How】本文是一篇纪录片文字稿，文章结构清晰，主线分明，语言精炼且通俗易懂。全文共有六个自然段。第一段用一个想象的场景引入主题，将过去富饶、美丽的村庄与煤炭过度开采后废弃的村庄进行对比；第二至第五段为文章的主体部分，分别介绍了可再生能源的种类、优点、应用现状、面临的挑战和可能的解决方法；最后一段总结全文，提出如果可再生能源能够成为主流，那么未来的世界会更加绿色、健康。本文使用场景描绘的手法引入主题，更具代入感。在 阐述可再生能源的优点时，本文运用了作比较的写作手法。本文还使用了数据和例证来增强科学性、权威性和说服力。 ◆ 教学目标 By the end of this section, we will be able to: 1. realize the necessity and importance of using renewable energy; 2. understand the types, advantages, applications, challenges and possible solutions of renewable energy; 3. analyse the writing techniques of the documentary transcript; 4. write a short paragraph by using point-by-point contrast; 5. foster our national confidence and increase our awareness of using renewable energy. Traditional energy sources, such as coal, gas and oil, have caused problems for our planet,so we need to find new types of sustainable energy. The documentary transcript below describes renewable energy sources. Before you read the transcript, think about the following questions: • What do you know about the environmental impact of coal, gas and oil? I know gaining access to fossil fuels requires practices that are damaging the environment like mining. These practices spoil the land and pollute water sources. I also know that using fossil fuels results in the emission of carbon dioxide, a major contributor to global warming and ocean acidification, and produces poisonous chemicals, which lead to smog and cause air pollution. min·ing 采矿；采矿业 spoil  /spɔɪl/ 破坏；搞坏；糟蹋；毁掉,=ruin con·tribu·tor /kənˈtrɪbjətə(r)/ 促成因素;造成 (不良后果的) 因素 acidification酸化 acid·ify  /əˈsɪdɪfaɪ/(使)变成酸，酸化 • What renewable energy sources have you heard about? I have heard of quite a few renewable energy sources. There are the well-known ones like hydroelectric energy, wind energy, solar energy and geothermal energy. There are also the lesser-known ones such as and tidal energy. I have also heard of possible futurhydrogen energye ones, for instance, “invisible power”. hydro·elec·tric  /ˌhaɪdrəʊɪˈlektrɪk/ 使用水力发电的;水力产生的 lesser-known较罕为人知的 tidal energy 潮汐能 A kind of tiny energy particle, called the neutrino particle, hits the Earth in equal numbers every moment of every day. Neutrino energy can be harvested from our surroundings, regardless of weather conditions. It can become one of the main energy sources for smart devices, which have low energy requirements.一种微小的能量粒子，被称为中微子粒子，每天每时每刻都有等量的粒子撞击地球。无论天气状况如何，我们都可以从周围环境中获取中微子能量。它可以成为低能耗智能设备的主要能源之一。 neu·trino  /njuːˈtriːnəʊ/ ( pl.-os)中微子 har·vest  /ˈhɑːvɪst/ 采集 Renewable energy : a gift for the future There was once a village surrounded by fertile fields with farmers tending their crops and farm animals grazing lazily below a mighty mountain. Then coal was discovered, and soon titanic-sized earth-digging machines circled the village. 从前有一个村庄，周围是肥沃的土地，农民们耕种庄稼，牲畜在高山下懒洋洋地吃草。后来这里发现了煤，很快，巨大的挖土机包围了村庄。 mighty adj.巨大的;非凡的;强而有力的 adv.非常;很;极其 ex·cav·ator /ˈekskəveɪtə(r)/ 挖掘机；挖土机;发掘者 ex·cav·ate /ˈekskəveɪt/ 发掘，挖出（古建筑或古物） cir·cle  /ˈsɜːkl/ 围绕…画圈;圈出;圈起;盘旋,环行;围绕, Villagers eagerly accepted the high-paid jobs the mining company provided, bringing a temporary economic boom. Meanwhile, the machines cut through everything in their path to access the coal buried beneath. Many years later, all that remained was a deserted village and an enormous hole.村民们迫不及待地接受了采矿公司提供的高薪工作，这带来了短暂的经济繁荣。与此同时，机器在所经之处一路深挖，以获取埋在地下的煤炭。许多年后，这里剩下的只有一个废弃的村庄和一个巨大的坑洞。 boom  /buːm/ n. ~ (in sth)(贸易和经济活动的)激增,繁荣 v.迅速发展；激增；繁荣昌盛 cut through sth开辟(出路或通道) remain v.剩余;遗留;继续存在 The scenario is tragic, but it only partly describes the damaging effects fossil fuels have on the environment when they are mined. Actually, once burnt, they produce a large quantity of carbon dioxide, which in turn traps heat and causes global warming. 这是个可悲的场景，但它只描绘了化石燃料开采时对环境造成的部分破坏性影响。事实上，一旦燃烧，它们（化石燃料）就会产生大量二氧化碳，而二氧化碳又会吸收热量，导致全球变暖。 scen·ario /səˈnɑːriəʊ/ 设想；方案；预测;可能发生的情况 dam·aging (to sb/sth) 造成破坏的;有害的;损害的 mine  /maɪn/ （在某地）开矿，采矿 trap收集；吸收 Humans are clearly facing a critical moment, so a move towards clean, renewable energy is inevitable. Renewable energy sources, which include solar, wind, hydroelectric, tidal,biomass and geothermal energy, are perfect alternatives to fossil fuels. One of the reasons is that their carbon dioxide emissions tend to be lower. 人类显然正面临着一个关键时刻，因此必然要向清洁的可再生能源转变。可再生能源包括太阳能、风能、水电能源、潮汐能、生物质能和地热能，它们可以完美地替代化石燃料。这其中的原因之一是它们的碳排放量往往更低。 move (towards/to sth)/ (to do sth)行动 A study found that renewable energy sources emit about 50g or less of carbon dioxide per kilowatt-hour over their lifetime, compared to about 1,000g for coal. Besides, fossil fuels are non-renewable, whose reserves are estimated to dry up one day in the future. 一项研究发现，可再生能源在其生命周期中，产生每千瓦时电力排放的二氧化碳只有约 50 克或更少，而煤炭燃烧排放的二氧化碳约为 1000克。此外，化石燃料是不可再生的，其储备预计在未来某一天会枯竭。 life·time 一生;终身;有生之年;(某物的)存在期,寿命,使用期限 non-renewable不能更新的;不可再生的;非延续性的;不可重复有效的 re·serve  /rɪˈzɜːv/ 储备(量);储藏(量) In contrast,renewable energy sources are basically inexhaustible and will be available to us for a few billion more years if our planet remains safe and healthy. Countries around the world are racing towards a low-carbon future by investing in renewable energy sources. Renewable energy is now gradually being integrated into infrastructures, such as transport, communication and power supply systems. race （和…）比赛；参加比赛 integrate (sb) (into/with sth)(使)加入，融入群体 China is one of the countries embracing the renewable energy revolution. China manufactures state-of-the-art solar panels and wind turbines, and is the global leader in the production of batteries to power electric vehicles and store renewable energy on power grids.中国是热切欢迎可再生能源革命的国家之一。中国制造了最先进的太阳能电池板和风力涡轮机，在生产为电动汽车供电的电池，以及在电网上储存可再生能源的电池方面，中国全球领先。 wind turbine /ˈwɪnd tɜːbaɪn/ 风力涡轮机；风力发电机 power为…提供动力;驱动，推动(机器或车辆) Renewable energy consumption accounts for more than 20 per cent of its total energy consumption, and this figure is increasing. Over the past decade, China has been ahead in the development and application of clean energy technologies. 可再生能源消耗占中国能源消耗总量的 20% 以上，而且这一数字还在增长。在过去十年里，中国在清洁能源技术的研发和应用方面一直处于领先地位。 con·sump·tion /kənˈsʌmpʃn/ (能量、食物或材料的)消耗,消耗量 ahead占优势；领先 So, with these advantages and developments, why not completely replace fossil fuels with renewable energy? The truth is that producing power from renewable energy sources can be challenging. Renewable energy sources are not available everywhere and at any given moment. For instance, tidal energy is only available in coastal areas; solar and wind energy cannot produce power 24/7. 那么，既然可再生能源有这些优势，已经取得了这么多进展，为什么不用可再生能源完全替代化石燃料呢？事实是，利用可再生能源发电还充满了挑战。不是随时随地都有可以利用的可再生能源。例如，潮汐能只在沿海地区才有；太阳能和风能不能全天候发电。 24/7 adv. 一直不休(地),无时无刻(地),(指一天24小时一周7天不间断 A greater challenge is storing any extra energy in batteries for later use. Most current batteries do not have a storage capacity large enough to meet our daily power demands. Certain high-capacity batteries present problems, such as high manufacturing costs and related environmental damage. 更大的挑战是如何将多余的能量储存在电池中以供日后使用。目前大多数电池的储存容量都不足以满足我们的日常电力需求。某些大容量电池存在制造成本高、环境危害大等问题。 storage capacity 存储量 present引起,造成,带来;使发生;使经历 With these challenges in mind, a future with renewable energy may be difficult to predict. However, it is possible. Renewable energy sources exist in all kinds of places, including space. Space-based solar power projects aim to collect solar energy in outer space and distribute it everywhere it is needed on the Earth.考虑到这些挑战，或许很难预测未来是否会使用可再生能源。然而，这是有可能的。可再生能源在各种各样的地方都存在，包括在太空中。空间太阳能工程旨在收集外太空的太阳能，并将其分配到地球上任何需要的地方。 -based/-beɪst/(总部)位于……的;主要成分为……的;有……基础的 A solar collector would be placed in a location where there is constant sunlight to capture higher levels of solar energy for longer periods. Scientists are also working hard to solve the energy storage problem. Thermal batteries, for instance, can store the extra renewable energy as heat up to the extremely high temperature of 1,000℃ in an inexpensive storage medium like sand or water. 太阳能收集器将被置于太阳光总能照射到的地方，从而能够在更长时间内收集到更多太阳能。科学家们也在努力解决能量储存的问题。例如，热电池可以将多余的可再生能源以高达 1000℃的超高温热能的形式储存在沙子、水等廉价的储存介质中。 Compared with common batteries, these thermal batteries are considerably cheaper, and have a longer life as well as a higher storage capacity. Better still, they are completely recyclable.与普通电池相比，这些热电池价格便宜得多，而且寿命更长，存储容量更大。更好的是，它们可以完全回收利用。 con·sid·er·ably /kənˈsɪdərəbli/ 非常;很;相当多地,=significantly re·cyc·lable  /ˌriːˈsaɪkləbl/ 可回收利用的；可再循环的 Without doubt, renewable energy will form a big part of our future. Looking forward, we should invest in new technologies and innovative thinking that open the door to a whole new world where we decrease reliance on fossil fuels. Renewable energy—a welcome gift for our future— will help us build a greener and healthier world.毋庸置疑的是，可再生能源将会是我们未来的一个重要组成部分。展望未来，我们应该投资于新技术和新思维，这些新技术和新思维打开了一个对化石燃料依赖程度更低的新世界的大门。可再生能源将会帮助我们创造一个更绿色、更健康的世界——这是我们为未来准备的一份欢迎礼。 wel·come  adj.令人愉快的；受欢迎的 open the door to sth.(为…提供)达到目的的手段；(为…创造)机会 A. Understanding the text Page 18 A1. Read the documentary transcript and complete the chart below with the main idea of each paragraph. Renewable energy sources have more advantages compared to fossil fuels. Countries around the world are racing towards a low-carbon future. Renewable energy sources have more advantages compared to fossil fuels. It is possible to predict a future with renewable energy. A2.Read the documentary transcript again carefully and answer the following questions. 1. What types of renewable energy sources are mentioned in the transcript? 2. In what aspects has China been ahead over the past decade? Solar, wind, hydroelectric, tidal, biomass and geothermal energy. China has been ahead in the development and application of clean energy technologies. 3. What problems do certain high-capacity batteries present? 4. How can thermal batteries solve the storage problem of renewable energy sources? Certain high-capacity batteries present problems like high manufacturing costs and related environmental damage. Thermal batteries can store the extra renewable energy as heat up to the extremely high temperature of 1,000℃ in an inexpensive storage medium. A3 .In pairs, discuss the following questions. 1. The author says renewable energy is a gift for the future in the title. Why does the author say that? Use details from the transcript to support your idea. The author refers to renewable energy as a gift for the future because he believes that it can make our planet a better place to live for us and future generations. The author presents the damage that fossil fuels do in the introduction to imply that alternative energy sources are needed. 陈述 In the next paragraph, the author gives solutions— renewable energy, which, unlike fossil fuels, has more benefits for us.For example, “their carbon dioxide emissions tend to be lower” and “renewable energy sources are basically inexhaustible and will be available to us for a few billion more years if our planet remains safe and healthy”. In the third paragraph,by saying “Countries around the world are racing towards a low-carbon future by investing in renewable energy sources.”,the author makes us aware that the global community has realized renewable energy is one way to tackle existing issues caused by using fossil fuels. The author clearly believes we have the ability and means to have a better future, which is revealed at the end of the transcript: “Renewable energy—a welcome gift for our future—will help us build a greener and healthier world.” tackle/ˈtækəl/处理 2. The author uses a tragic scenario to introduce the topic of renewable energy. What do you think of this introduction? I think using a descriptive tragic scenario creates feelings of concern for the people who experienced that situation and anger at those who caused it. It is also most effective in capturing readers’ attention. The description of the tragic scenario causes readers to think about the consequences of using fossil fuels while also encouraging them to read further. 3. In paragraph 3, the author says, “China is one of the countries embracing the renewable energy revolution.” What examples in China do you know of that support this statement? Examples that show China is embracing the revolution are clear in both its current and future approaches to using renewable energy as its main power sources. An example of its current efforts is China’s investment in building ultra-high voltage power lines that carry the equivalent of the output of 10 nuclear power plants.These power lines transport the green energy from some regions like Qinghai,Xinjiang and Yunnan across the country. effort努力的结果；成就 ultra-  /ˈʌltrə/ (构成形容词和名词)极；超过某限度 volt·age /ˈvəʊltɪdʒ/ 电压；伏特数 power line输电线 equiva·lent (of/to sth) /ɪˈkwɪvələnt/ 相等的东西;等量;对应词 output输出功率；输出量 Investing in ultra-high voltage power lines is necessary because currently they are the most efficient and effective way to transport green energy. For the future, China has released a plan for developing a modern energy system during the 14th Five-Year Plan period, which runs from 2021 to 2025. This plan is seeking to advance the large-scale and high-quality development of wind and solar power generation, and develop nuclear power in an active, safe and orderly manner.面向未来，中国发布了“十四五”（2021年至2025年）期间建设现代能源体系的规划。推进风能、太阳能发电规模化、高质量发展，积极、安全、有序发展核电。 B. Building your language Page 19 B1.The magazine article below is about zero-energy buildings. Complete the article with the correct forms of the words and phrases in the box below. solar extra trap open the door to integrate estimate decrease in turn相应地;转而;依次;轮流;逐个 zero-energy零能耗的；零功率的 Rapid urbanization has increased building construction and hence energy consumption.Traditional architectural designs contribute to depleting the Earth’s natural resources,which (1) ______ accelerates global warming. The revolutionary concept of zero-energy buildings helps tackle the problem. urbanization/ˌɜːbənaɪˈzeɪʃən/城市化 urbanize/ˈɜːbənaɪz/使城市化;使(农村人口)迁徙到城市 urban /ˈɜːbən/ adj. 城市的；都市的；城镇的 building construction建筑施工 in turn To be considered as zero-energy, a building consumes energy that should equal its energy generated on site from renewable energy sources over a specific period. The structure may (2) _________ a variety of renewable energy systems with smart architectural designs, making it energy self-sufficient and energy-efficient.要被认为是零能耗，建筑消耗的能量应该等于其在特定时期内由可再生能源产生的能量。该结构可以将各种可再生能源系统与智能建筑设计相结合，使其能源自给自足和节能。 on site在工地上; 在现场 self-sufficient (in sth)自给自足的;自立的 /səˈfɪʃnt/ 足够的;充足的 energy-efficient 节能的; 高能效的 integrate The Centre for Sustainable Energy Technologies in Ningbo, Zhejiang Province, is an example of a zero-energy building. Among its various green technologies, the many (3) _____ panels on and around the building play a major role in producing power. On sunny days, the panels can generate 600 to 800 kilowatt-hours of power. Any (4) _____ power is stored, providing the building with electricity once the sun sets. Moreover, the building’s smart designs include a double skin of glass on the south. set落（下） skin  /skɪn/ 外壳；外层 solar extra The design optimizes sunlight and minimizes the need for artificial lighting.Besides, it can (5) ____ warm air between the layers in winter and protect the building against excessive exposure to sunlight in summer. This design contributes greatly to (6) __________ power costs for lighting, heating and cooling. Notably,with all its green technologies and smart designs working together, the building (7) ___________ to save more than 400 tonnes of coal and reduce carbon dioxide emissions by about 1,000 tonnes over 25 years. trap收集；吸收 trap decreasing is estimated Zero-energy buildings are a trend well worth following. China is implementing plans to reduce the number of energy-inefficient buildings across the country. With their low environmental impact, zero-energy buildings (8) ____________________________________ sustainable cities for the future. follow接受,遵循,听从(忠告、指示等);对…产生浓厚兴趣而关注 energy-inefficient 能源效率低下的;能源浪费的 in·ef·fi·cient  /ˌɪnɪˈfɪʃnt/ 效率低的；能力差的；浪费的 are opening the door to/open the door to B2 .The documentary transcript uses point-by-point contrast when discussing the benefits of renewable energy. Find examples of such information in the transcript. Then write a short paragraph to compare one renewable energy source with a traditional one using point-by-point contrast. Learn this: Point-by-point contrast is the comparison of a specific point of an idea with that of another related idea. This method focuses on the differences between the two ideas. Using this method increases your understanding of the two ideas which are being compared and helps you identify connections between them. The examples using point-by-point contrast from the documentary transcript: One of the reasons is that their carbon dioxide emissions tend to be lower. A study found that renewable energy sources emit about 50g or less of carbon dioxide per kilowatt- hour over their lifetime, compared to about 1,000g for coal. Besides,fossil fuels are non-renewable, whose reserves are estimated to dry up one day in the future. In contrast, renewable energy sources are basically inexhaustible and will be available to us for a few billion more years if our planet remains safe and healthy. Possible answer Oil is one fossil fuel we use for creating liquid fuels. However, nature has provided a renewable energy source —biomass, which can be used to create liquid fuels called biofuels. Drilling for oil is expensive. In contrast, biofuels are cheaper to produce because they only require common biomass materials like plants. oil  /ɔɪl/ 石油；原油 biomass/ˈbaɪəʊmæs/生物量；生物质能燃料 biofuel/ˈbaɪəʊˌfjʊəl/生物燃料 Besides,oil wells cause great damage to the environment when oil spills happen, especially in the ocean. Compared to oil, biofuels do not cause damage to the environment in devastating ways, despite sometimes using a lot of land. oil well  油井 spill  /spɪl/spill·age 洒出(量);泼出(量);溢出(量);泄漏(量) oil spill石油泄漏 dev·as·tat·ing  /ˈdevəsteɪtɪŋ/ 破坏性极大的；毁灭性的 ,=disastrous $