朗阁首页 > 雅思培训 > 雅思阅读 > 雅思阅读模拟题及答案分析

雅思阅读模拟题及答案分析

2018-12-271067人看过 10万人已领免费资料    雅思托福0元试学

Lily老师从业5年 已帮助 300名学员实现留学梦

  雅思阅读模拟题及答案分析,想要阅读较快提分,最直接的办法就是多做一些阅读模拟题,如果你已经刷题目刷到无题可刷了,那就跟着小编来看看吧,不仅有阅读材料还有答案解析哦,一起来看看吧。



  雅思阅读模拟题及答案分析



雅思阅读模拟题及答案分析



  一,阅读材料


  REFRIGERATORS are the epitome of clunky technology: solid, reliable and just a little bit dull. They have not changed much over the past century, but then they have not needed to. They are based on a robust and effective idea--draw heat from the thing you want to cool by evaporating a liquid next to it, and then dump that heat by pumping the vapour elsewhere and condensing it. This method of pumping heat from one place to another served mankind well when refrigerators' main jobs were preserving food and, as air conditioners, cooling buildings. Today's high-tech world, however, demands high-tech refrigeration. Heat pumps are no longer up to the job. The search is on for something to replace them.


  One set of candidates are known as paraelectric materials. These act like batteries when they undergo a temperature change: attach electrodes to them and they generate a current. This effect is used in infra-red cameras. An array of tiny pieces of paraelectric material can sense the heat radiated by, for example, a person, and the pattern of the array's electrical outputs can then be used to construct an image. But until recently no one had bothered much with the inverse of this process. That inverse exists, however. Apply an appropriate current to a paraelectric material and it will cool down.


  Someone who is looking at this inverse effect is Alex Mischenko, of Cambridge University. Using commercially available paraelectric film, he and his colleagues have generated temperature drops five times bigger than any previously recorded. That may be enough to change the phenomenon from a laboratory curiosity to something with commercial applications.


  As to what those applications might be, Dr Mischenko is still a little hazy. He has, nevertheless, set up a company to pursue them. He foresees putting his discovery to use in more efficient domestic fridges and air conditioners. The real money, though, may be in cooling computers.


  Gadgets containing microprocessors have been getting hotter for a long time. One consequence of Moore's Law, which describes the doubling of the number of transistors on a chip every 18 months, is that the amount of heat produced doubles as well. In fact, it more than doubles, because besides increasing in number, the components are getting faster. Heat is released every time a logical operation is performed inside a microprocessor, so the faster the processor is, the more heat it generates. Doubling the frequency quadruples the heat output. And the frequency has doubled a lot. The first Pentium chips sold by Dr Moore's company, Intel, in 1993, ran at 60m cycles a second. The Pentium 4--the last "single-core" desktop processor--clocked up 3.2 billion cycles a second.


  二, 雅思阅读题目


  Complete each of the following statements with the scientist or company name from the box below.


  Write the appropriate letters A-F in boxes 1-5 on your answer sheet.


  A. Apple


  B. IBM


  C. Intel


  D. Alex Mischenko


  E. Ali Shakouri


  F. Rama Venkatasubramanian


  1. ...and his research group use paraelectric film available from the market to produce cooling.


  2. ...sold microprocessors running at 60m cycles a second in 1993.


  3. ...says that he has made refrigerators which can cool the hotspots of computer chips by 10℃.


  4. ...claims to have made a refrigerator small enough to be built into a computer chip.


  5. ...attempts to produce better cooling in personal computers by stirring up liquid with tiny jets to make sure maximum heat exchange.


  Questions 6-9


  Do the following statements agree with the information given in the reading passage?


  In boxes 6-9 on your answer sheet write


  TRUE if the statement is true according to the passage


  FALSE if the statement is false according to the passage


  NOT GIVEN if the information is not given in the passage


  三,阅读答案


  1. D


  See Paragraph 3: ...Alex Mischenko, of Cambridge University. Using commercially available paraelectric film, he and his colleagues have generated temperature drops...


  2. C


  See Paragraph 5: The first Pentium chips sold by Dr Moore's company, Intel, in 1993, ran at 60m cycles a second.


  3. F


  See Paragraph 8: ...Rama Venkatasubramanian, of Nextreme Thermal Solutions in North Carolina, claims to have made thermoelectric refrigerators that can sit on the back of computer chips and cool hotspots by 10℃.


  4. E


  See Paragraph 8: Ali Shakouri, of the University of California, Santa Cruz, says his are even smaller梥o small that they can go inside the chip.


  5. B


  See Paragraph 9: To improve on this, IBM's research laboratory in Zurich is experimenting with tiny jets that stir the liquid up and thus make sure all of it eventually touches the outside of the channel--the part where the heat exchange takes place.


  以上就是我们的文章内容了,希望对大家会有较大的帮助,也预祝大家可以尽早考过雅思考试,实现自己的目标。


精品课程更多

雅思精品7分课程

课程特色:小班授课,作文批改,全真模考
适合人群:词汇量4500-5000左右;大二/大三英语程度

雅思直达6.5分课程

课程特色:小班授课,作文批改,全真模考
适合人群:词汇量6000+左右;雅思分数6分程度或同等水平

雅思预备6.5分课程

课程特色:小班授课,作文批改,全真模考
适合人群:词汇量在2000-2500左右;初三/高一英语程度

雅思入门6.5分课程

课程特色:小班授课,作文批改,全真模考
适合人群:词汇量在1000左右;初一英语水平

相关推荐更多

  • 雅思备考资料

    雅思阅读备考中大家用到什么资料呢?其实总的来看雅思阅读资料是分为两大类的,一类是官方雅思阅读备考资料,另一类是非官方雅思阅读备考资料。那么,今天小编就来为大家介绍,雅思阅读资料。

  • 雅思与托福的八大不同(二)

    雅思与托福有哪些不同呢?今天小编即将要分享给大家的是“雅思与托福的八大不同”,希望能够对大家有所帮助!有兴趣的小伙伴赶快和小编一起来学习一下吧!

  • 雅思与托福的八大不同(一)

    雅思与托福有哪些不同呢?今天小编即将要分享给大家的是“雅思与托福的八大不同”,希望能够对大家有所帮助!有兴趣的小伙伴赶快和小编一起来学习一下吧!

  • 雅思阅读概念题解题方法

    雅思阅读碰到概念题怎么解答呢。今天小编即将要分享给大家的是“雅思阅读概念题解题方法”,希望能够对大家有所帮助!有兴趣的小伙伴赶快和小编一起来学习一下吧!

免费领取200元优惠券

沪ICP备 17003234 号 图书经营许可证:第A7651号 版权所有:上海朗阁教育科技股份有限公司 Copyright 2005 duanxinxiaohua.com All Rights Reserved