Today petroleum provides around 40% of the worlds energy needs, mostly fuelling automobiles. Coal is still used, mostly in pover stations, to cover one-quarter of our energy needs, but it is the least efficient, unhealthiest and most environmentally damaging fossil fuel. Natural gas reserves could plug some of the gap from oil, but reserves of that will not last into the 22nd century either. Most experts predict we will exhaust easily accessible reserves within 50 years. We could fast reach an energy crisis. We need to rapidly develop sustainable solutions to fuel our future. Less-polluting renewable energy sources offer a more practical long-term energy solution. They may benefit the worlds poor too. Renewable refers to the fact that these resources are not used faster than they can be replaced. Hydroelectric power is now the most common form of renewable energy, supplying around 20% of world electricity. Chinas three gorges Dam, which has just been completed, is the largest ever. At five times the size of the USs Hoover Dam, its 26 turbines will generate the equivalent energy of 18 coal-fired power stations. It will satisfy 3% of Chinas entire electricity demand. In 2003, the first commercial power station to harness tidal currents in the open sea opened in Norway. It is designed like windmill, but others take the form of turbines. As prices fall, wind power has become the fastest growing type of electricity generation quadrupling worldwide between 1999 and 2005. Modern wind farms consist of turbines that generate electricity. Though it will be more expensive, there is more than enough wind to provide the worlds entire energy needs. Wind farms come in onshore and offshore forms. They can often end up at spots of natural beauty, and are often unpopular with residents. And turbines are not totally benign they can interfere with radar and leave a significant ecological footprint, altering climate and lilling sea birds. Migrating birds may have more luck avoiding them. Scotland is building europes largest wind farm, which wil power 200,000 homes. The UKs goal is to generate onefifth of power from renewable sources, mainly wind, by 2020. But this may cause problems, because wind is unreliable. 1.According to the passage,which of the following is the most polluting energy resource? A.Petroleum. B.Coal. C.Natural gas D.Water. 2.Chinas Three Gorges Dam A.is the first hydroelectric dam in the world. B.is of the same size as the USs Hoover Dam. C.can generate around 3% of world electricity. D.is the largest hydroelectric dam in the world. 3.Which country took the lead in making use of tidal currents to produce power in 2003? A.The UK. B.China. C.Norway. D.The US. 4.One of the problems with wind farms is that A.there is not enough wind. B.wind is not reliable. C.they can only be built on the sea. D.they might influence the world economy. 5.According to the passage,resources like wind are A.renewable. B.recyclable. C.damaging. D.scarce. 答案 B、D、C、B、A
2017届高考英语二轮复习大题冲关秘籍短文改错:创新押题(含解析)
邓肯退役亲笔信
潘基文秘书长2016年世界土壤日致辞
2017届高考英语二轮复习大题冲关秘籍短文改错:体验真题(含解析)
伦敦动物园发圣诞礼物 霸气小老虎“怒拆”礼物
联合国人权事务高级专员扎伊德•拉阿德•侯赛因2016年人权日致辞
2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文:考纲分析(含解析)
第一次约会的5个大坑!掉进去基本就bye bye
国内英语资讯:Chinese vice premier stresses implementation of poverty relief measures
国内英语资讯:China rolls out guideline to boost development of strategic emerging industries
2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文:解题技巧(含解析)
蓝皮书总结中国社会治安三大新困境
2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文:命题趋势(含解析)
国际英语资讯:Russian Ambassador to Turkey killed in gunman attack in Ankara
应对空气污染 世界各地反应大不同
梦工厂 Dream Factory
国际英语资讯:Yearender: Manila ushers in new era of Sino-Philippine relations under Duterte as China exten
2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文:创新押题(含解析)
国内英语资讯:China, Norway agree on normalization of ties
刘晓明大使在2016年华为冬季音乐会上的致辞
Final curtain?
2016年12月大学英语四级翻译真题及参考答案
每天早起30分钟,根本没有那么难好吗?
2017届高考英语二轮复习大题冲关秘籍语法填空:创新押题(含解析)
暖心小说《小王子》第26章
2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文:体验真题(含解析)
国内英语资讯:Yearender-Commentary: China economy skeptics should rethink their betting
2017届高考英语二轮复习大题冲关秘籍短文改错:名校模拟(含解析)
Clickbait 点击诱饵
国际英语资讯:Commentary: Incoming Trump administration should realize weight of China-U.S. relations
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |