题目内容
2.Researchers around the world have been trying their hand at making better use of the huge amount of wind energy available in nature to produce clean energy.Apart from this,studies are being carried out to harness(利用) usable wind energy produced by man-made technologies.One useful source identified by Indian inventor Santosh Pradhan about two years ago is a speeding train,which produces fierce wind that can be transformed into electricity.
According to Pradhan's proposal,with a few small improvements in existing trains running in Mumbai,the largest city in India,at least 10,000megawatts(兆瓦) of electricity could be harvested each day.
Building on this principle,designers Ale Leonetti Luparinia and Qian Jiang from Yanko Design have created a device(装置) called T-Box that harnesses wind energy from speeding trains.
T-Box can be placed within the railway tracks.It is half-buried underground between the concrete sleepers(水泥枕木),which does not disturb the normal train operating at all.According to Yanko,around 150T-Boxes can be fitted along a 1,000-meter railway track.
A train running at a speed of 200kph can produce winds blowing at 15miles a second.Based on this calculation,150T-Boxes can produce 2.6KWH of electricity per day.The T-Box's design won a silver medal in last year's Lite-On Awards and was exhibited last summer at the Xue Xue Institute in Taipei,Taiwan Province.
Though the figures look impressive,it is important to remember that the design is still at a conceptual stage and hasn't taken into account issues such as pieces of waste material produced by the device and the efforts and costs involved in the maintenance(维护) of the device.
We can expect the technology to see the light of the day only after it clears these issues.If so,rail travel,one of the greenest forms of travel,will become greener and more energy-efficient.
46.What can we learn about T-Box?B
A.It will be fitted on the trains.
B.It is based on Pradhan's idea.
C.It can turn electricity into light.
D.It was invented by an Indian scientist.
47.How much electricity can be produced per day by T-Boxes along a railway track of 100km?A
A.260KWH.
B.2.6KWH.
C.150KWH.
D.1.5KWH.
48.It can be concluded from the last two paragraphs thatC.
A.T-Box has proved to be effective in harvesting wind
B.the maintenance of T-Box will be costly
C.there is much to do about T-Box
D.T-Box will come into use soon
49.According to the passage,which of the following statements is TRUE?B
A.The Indian inventor Santosh Pradhan invented the speeding train.
B.The T-Box's design won a silver medal in Lite-On Awards last year.
C.Rail travel has become one of the energy-efficient technologies in the world.
D.The India harvests 10,000megawatts of electricity each day on average.
50.The passage is mainly written toD.
A.encourage more people to travel by train
B.explain the advantages of electricity
C.tell readers how to save energy and money
D.introduce a new invention to readers.
分析 本文属于说明文阅读,作者通过这篇文章向我们叙述了Santosh Pradhan设计的T-Box 具有极好的性能,很多方面都令人印象深刻,还赢得了一枚银牌光宝奖并展出,但是设计还处于概念阶段,还有很大的改进空间.
解答 46.B.细节理解题.根据文章第四段"designers Ale Leonetti Luparinia and Qian Jiang from Yanko Design have created a device(装置) called T-Box that harnesses wind energy from speeding trains",可知两年前一个有用的源代码被印度发明家Santosh Pradhan是一辆飞驰的列车,产生激烈的风,可以转化为电能;故选B.
47.A.细节理解题.根据文章第六段"Based on this calculation,150T-Boxes can produce 2.6KWH of electricity per day",可知基于这样的计算,可以产生150t盒每天发电2.6kwh;故选A.
48.C.推理判断题.根据文章最后两段"it is important to remember that the design is still at a conceptual stage and hasn't taken into account issues",这是要记住的设计还处于概念阶段,还有没考虑到的问题,故选C.
49.B.细节理解题.根据文章第六段"The T-Box's design won a silver medal in last year's Lite-On Awards and was exhibited last summer at the Xue Xue Institute in Taipei,Taiwan Province."可知T-Box 的设计去年夏天在台湾省台北的薛院赢得了一枚银牌光宝奖并展出;故选B.
50.D.主旨大议题.通读全文,文章主要讲述了Santosh Pradhan设计的T-Box 具有极好的性能,因此应选向读者介绍一种新的发明;故选D.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
A. | assume | B. | approve | C. | dominate | D. | contrast |
-.( )
A. | Of course,go ahead | B. | Yes,don't worry. | ||
C. | Yes,help yourself | D. | Of course,why not? |