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出版社:浙江教育出版社
出版日期:2011-11
ISBN:9787533893958
作者:新东方考研英语命题研究组
页数:224页
章节摘录
版权页:插图:Current Group,a Germantown-based technology firm,has taken over an ordinary looking house in Bethesdaand turned it into a laboratory for smart-grid technology,the system the company believes will bring the nation’Selectricity grids into the digital age.In the front yard stands a utility pole hooked up to a special transformer that connects the power lines tohigh-speed Intemet.Hundreds of sensors a~ached to the lines monitor how power flows through the home.Thatinformation is then sent back to the utility company. The process lets a utility more efficiently manage the distribution of electricity by allowing two-waycommunication between consumers and energy suppliers via the broadband network on the power lines.Based ondata they receive from hundreds of homes,utilities can monitor usage and adjust output and pricing in responseto demand.Consumers can be rewarded with reduced rates by cutting back on consumption during peak periods.And computerized substations can talk to each other SO overloaded circuits hand off electricity to those that havenot fully loaded,helping to prevent blackouts. Some utility companies have launched initiatives to give consumers data about their energy consumptionhabits in an effort to lower energy bills.Smart-grid technology takes such programs fiLrther by automatingelectricity distribution,which would make grids more reliable and efficient. By partnering with utilities.the company hopes to tap into$4.5 billion in stimulus grants intended toencourage smart-grid development.When he announced the funding,President Obama pointed to a project inBoulder,Colo.,as an example of a successful smart-grid experiment.Current is one ofthe companies working onthe project. Current'S chief executive Tom Casey believes the technology wilt help utility companies better distributeelectricity produced by renewable resources,such as solar panels or wind farms.“A smart grid’S system can bepaired up with the renewable resources SO that when the renewable source is varying,the overall load can bevaried as well,”Casey told the House Select Committee on Energy Independence and Global Warming.“Thiswill reduce or eliminate the need for backup coal or gas-based power generation plants.”
编辑推荐
《新东方·考研英语:权威预测8套题(2012年)》:严格按照新大纲命题方向编写,涵盖大纲要求的所有考点阅读理解A节、B节全文翻译,重点剖析贴近真题,预测性、实战性强,适用于考前模拟热身对所有题目进行详尽解析,点透解题思路写作部分提供经典模板及范文,突击美文佳句。
作者简介
《新东方·考研英语:权威预测8套题(2012年)》与去年相比,2012年的考研大纲没有任何实质性的变化,只是对个别措词做了一些微调。这对广大考生来说,的确是一个好消息。据统计,在考研没有通过的所有原因中,英语没有通过占到30%,这足以说明英语考试日益成为考生关注和备考的重点,很多考生把英语考试想得高深莫测,遥不可及。然而只要掌握了正确的复习方法,并且持之以恒地学习,英语成绩就会突飞猛进。为了帮助广大考生顺利通过研究生入学考试的英语关,我们根据最新的《全国硕士研究生入学考试英语考试大纲》所规定的题型和试卷结构编写了这套冲刺试卷。
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