2017年职称英语理工类B级补全短文备考习题【六】

时间:2016-05-09  来源:大考吧  

  2017年职称英语理工类B级补全短文备考习题(六)

  补全短文(共5题,每题2分,共10分)

  1篇300-450词的短文,文中有5处空白,文章后面有6组文字,其中5组取自文章本身。要求应试者根据文章的内容选择5组文字,将其放回相应位置,以恢复文章原貌。

  应对策略:

  要先看标题定文体,再看选项,观察选项时应注意抓主干,猜大意,弄清选项大意是表示定义、因果、例子还是措施;不要放过代词、专用名字、连接词、数字等特征词;

  然后回头再去看课文,明确1-5的位置。

  解每道题时只需要阅读该题所在段落,不需要阅读其他段落。往往通过阅读该题目的前后句就能够确定答案,在考试时,应该注意利用以下前后句子存在的关系来做题:

  (1)利用转折关系 (2)利用归纳总结关系 (3)利用总分关系 (4)利用并列关系

  阅读下面的短文,文章中有5处空白,文章后面有6组文字,请根据文章的内容选择5组文字,将其分别放回文章原有位置,以恢复文章原貌。

  Watching Microcurrents Flow

  We can now watch electricity as it flows through even the tiniest circuits. By scanning the magnetic field generated as electric currents flow through objects, physicists have managed ____1____. The technology will allow manufacturers to scan microchips for faults, as well as revealing microscopic defects in anything from aircraft to banknotes. Gang Xiao and Ben Schrag at Brown University in Providence, Rhode Island, visualize the current by measuring subtle changes in the magnetic field of an object and ____2__Their sensor is adapted1 from an existing piece of technology that is used to measure large magnetic fields in computer hard drives.2”We redesigned the magnetic sensor to make it capable of measuring very weak changes in magnetic fields,” says Xiao. The resulting device is capable of detecting a current as weak as 10 microamperes, even when the wire is buried deep within a chip, and it shows up features as small as 40 nanometers across. At present, engineers looking for defects in a chip have to peel off the layers and examine the circuits visually; this is one of the obstacles ____3____. But the new magnetic microscope is sensitive enough to look inside chips and reveal faults such as short circuits , nicks in the wires or electro migration — where a dense area of current picks up surrounding atoms and moves them along. “It is like watching a river flow,” explains Xiao. As well as scanning tiny circuits, the microscope can be used to reveal the internal structure of any object capable of conducting electricity.3 For example, it could look directly at microscopic cracks in an aeroplane’s fuselage, ____4____. The technique cannot yet pick up electrical activity in the human brain because the current there is too small, but Xiao doesn’t rule it out4 in the future. “I can never say never,” he says. Although the researchers have only just made the technical details of the microscope public, it is already on sale,5 from electronics company Micro Magnetics in Fall River, Massachusetts. It is currently the size of a refrigerator and takes several minutes to scan a circuit, but Xiao and Schrag are working ____5____.

  A to shrink it to the size of a desktop computer and cut the scanning

  B to making chips any smaller

  C to take tiny chips we require

  D to picture the progress of the currents

  E converting the information into a color picture showing the density

  F faults in the metal strip of a forged banknote or bacteria in a water

  参考答案: DEBFA

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