新核心大学英语读写教程第二册答案 2

Unit 2 Energy Task 2 Understanding Main Ideas and Important Details in the Text 1.Answer the following questions. 1)What can renewable energy sources do to decrease greenhouse gases and pollutants? They are of great help to cut down the amount of toxins, which are by-products of the consumption of energy. 2)What are the most common sources of renewable energy? Solar energy, wind energy, geothermal energy, hydroelectricity, and biofuels. 3)According to this passage, what renewable energy sources have been used since ancient times? Solar energy, wind energy and hydroelectricity. 4)What is the main disadvantage of wind energy? It never has a constant speed or direction. 5)What are the advantages of biofuels? The advantages of biofuels are that they contain no petroleum, and they are nontoxic and biodegradable. 3.Review the text to find information about the advantages and disadvantages of renewable sources. List the points in the table below. solar energy It is easy for people to be able to benefit from solar power. It is limited and cannot be used on nighttime or rainy days. wind energy It doesn’t produce any by-products that can be harmful to the environment. It never has a constant speed or direction. geothermal energy Because the earth’s crust continuously deca ys replenishing the heat, geothermal energy remains a renewable energy. It is expensive to build geothermal plants. Hydroelectricity Electricity can be generated by using the kinetic energy of water. It poses a problem for fish and aquatic plants on both sides of the dam. Biofuels They contain no petroleum, and they are nontoxic and biodegradable. Not mentioned. Task 2 Understanding the Ideas, Details, and Structure of the Text 1.Read the text carefully, then fill in the blanks with the main ideas for each part. 1) dampen vibrations but store energy to provide a source of power 2) power can be generated from human movement 3) store the harvested energy efficiently 4) viable alternative source of power 5) understanding how to capture, store and release human energy 6) From the Eighties, devices powered by human movement have been developed. Now People hold different opinions on what is the best way of harnessing human power. 7) Seiko 8) energy-harvesting devices that could be built into soldiers’ boots 9) what is the best way of harnessing human power 10) The Pacesetters Project has attracted attention from the business world. In the UK, development of sustainable energy is always encouraged 2. Translate the following passage into English. Some researchers in London are carrying out a project which involves the installation of the world’s first human energy harvesting staircase. They aim to prove the potential of human energy to supplement power supply in public places. How to store the harvested energy efficiently poses a challenge for them, as a large amount of human effort is required to generate even a modest amount of power. With more and more low-power electrical products designed and the potential applications of human energy growing, people are showing more interest in self-power generation. Actually, as early as 1980’s, devices powered by human movement were produced. However, to date, there are still different opinions on what is the best way of harnessing human power. 3.Complete the following sentences according to the Chinese given in brackets. P48 1.various household appliances 各种家用电器 2.2. as it produces no pollutants 因为它不会产生污染物 3.Consumption of wood for fuel 消耗木材用作燃料 4.withstand the recent rise in oil 抵制最近的油价上涨 5.are operating reliably and efficiently 正在可靠、高效地运行 6.6. a fixed capacitor is usually installed 通常安装固定电容器 7.The causes of the war lie in 战争的起因在于 8.8. a modest decrease in house prices 房价略有下降 9.cut down (on) their energy usage 减少能源的消耗 10.10. pose a serious threat 造成严重的威胁 3.Translate the following Chinese sentences into English. 1) 到2030 年,太阳能板的制造、安装和维修领域预计能增加630 万个工作岗位。 Manufacturing, installing, and maintaining solar panels should add 6.3 million jobs by 2030. 2)燃料电池仍然是太空计划必不可少的一部分,它们能可靠地把电力提供给宇宙飞船。 Fuel cells remain an essential part of the space program, reliably powering the space shuttles. 3)这个1 万美元的项目覆盖了6 个街区的面积,使所有人都能通过附近屋顶上的太阳能电池板驱动的wi-fi发射器与因特网连接。 The $10,000 project, which covers a six-block area, allows anyone to connect to the Internet through wi-fi transmitters powered by solar panels on nearby rooftops. 4) 科学不仅改善了人们的生活条件,而且提高了人们的理解力,促进了他们心智的发展。(Science... not only ... but also ...) Science has not only improved people’s quality of living, but also raised their understanding and promoted their spiritual and intellectual growth. 5)在他的文章中提到,相比于把这些生物质转化为液体燃料,燃烧这些生物质来产生电能对环境更为有利。 It was mentioned in his article that burning such biomass to produce electricity delivered more environmental benefits than transforming it into liquid fuels.