11Development of new energy sources开发新能源 Human beings can't live, eat, live, and work without energy. 人类的衣食住行,生产劳动等离不开能源。 Is there an infinite amount of energy on earth?地球上的能源是无穷的吗？ Analyze the chart and tell us what you think分析图表,说说自己的想法 1/4 of the earth's oil has been used up地球上1/4的石油已经被用掉了 Any material that can provide usable energy is collectively called energy.凡是能够提供可利用的能量的物质统称为能源。 The energy sources that have been widely used, such as coal, oil and natural gas, are called conventional energy sources.人们把煤、石油、天然气等已被广泛应用的能源叫作常规能源。 Energy sources that have not yet been used by humans on a large scale and need to be further researched, developed and used rationally are called new energy sources.目前尚未被人类大规模利用,而有待于进一步研究、开发、合理利用的能源叫作新能源。 Some energy sources are non-renewable有些能源是不可再生的 Hydroelectricity水力发电 The earth's energy is limited and new energy sources must be found地球上的能源是有限的必须寻找新能源 With the development of society and economy and the improvement of energy science and technology,随着社会、经济的发展和能源科学技术水平的提高, people have become aware of energy shortage and environmental pollution caused by the use of energy.人们已经意识到能源短缺以及因能源的利用而造成的环境污染等问题 What new energy sources have been developed?目前,人类开发了哪些新能源? Geothermal地热 Nuclear energy核能 Tidal energy潮汐能 Solar energy太阳能 For billions of years, solar energy has been the ideal source of inexhaustible energy.在几十亿年里、太阳能是取之不尽、用之不竭的理想能源 Do the math.算一算 A mint-sized piece of U-235 can produce as much energy as 615 liters of fuel. 一颗薄荷糖大小的铀-235能够产生与615升燃油一样多的能量。 If a car travels 1,000 kilometers a day and uses 80 liters of fuel, how many mint-sized pieces of U-235 would produce as much energy as a car would consume in a year?如果一辆轿车每天行驶1000千米,需要使用80升的燃油,照这样计算,多少颗薄荷糖大小的铀-235产生的能量相当于一辆轿车行驶一年消耗的能量? The new energy of the future.未来新能源。 Searching for ...... at the bottom of the sea在海底寻找…… Further research and development of solar energy,进一步研究开发太阳能, We are looking for new green energy我们要寻找绿色新能源 At present, mankind has explored and discovered new energy sources such as combustible ice and coal into gas, which will be widely used in the 21st century.目前,人类已探索发现了可燃冰、煤成气等新能源,这些新能源将在21世纪得到广泛应用。 Information Card资料卡 On September 25, 2009, China announced the discovery of large-scale onshore combustible ice on the Qinghai-Tibet Plateau. 2009年9月25日,中国宣布在青藏高原探明存在大规模陆域可燃冰。 This is the first time China has discovered natural gas hydrate (i.e., combustible ice) onshore, and China has become the first country in the world to discover combustible ice in the mid- to low-latitude tundra.这是中国首次在陆域发现天然气水合物(即可燃冰),中国也成为世界上首个在中低纬度冻土区发现可燃冰的国家。 This is another major discovery after China drilled combustible ice in the northern South China Sea in May 2007.这是我国继2007年5月在南海北部钻获可燃冰之后的又一重大发现。 Natural gas hydrate is an important alternative energy source in the "post-oil era".天然气水合物是“后石油时代”的重要替代能源。 The discovery of this potential energy source in the permafrost region will certainly broaden the horizon of human beings in the search for new energy sources and provide a guarantee for sustainable economic and social development.我国在冻土区发现这一潜在能源,必将较大地开阔人类寻找新能源的视野,为经济社会可持续发展提供保障。 Predict which energy source is most likely to be used in your community in 100 years, and explain why.预测100年后自己所在的社区最有可能使用哪一种能源,并说明理由。 What energy-saving measures are being taken in our lives?我们的生活中采取了哪些节能措施? Collect data and explain the effect of energy saving.搜集数据,说明其节能效果。 Unit Evaluation单元评价 What I know about energy in our lives我知道的生活中的能量 Activities I am most interested in exploring我最感兴趣的探究活动 ○Getting my body warmed up让身体热起来 ○Study the factors that affect the speed of pendulum movement研究影响摆摆动快慢的因素 ○An experiment to study the properties of electromagnets 研究电磁铁特性的实验 ○A small experiment on energy conversion能量转化的小实验 ○ ○ My performance我的表现 Problems I would like to continue to study我还想继续研究的问题 |
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.
