2014考研英語(yǔ)復(fù)習(xí):模擬試題之閱讀理解專項(xiàng)練習(xí)(二十)_跨考網(wǎng)

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  2014考研英語(yǔ)復(fù)習(xí):模擬試題之閱讀理解專項(xiàng)練習(xí)(二十)

  Section Ⅱ Reading Comprehension

  Part A

  Directions:

  Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.(40 points)

  Text 1

  A report on a new software that enables eyes to do the typing appears in Wednesday's edition of the journal Nature. Replacing a keyboard or mouse, eye-scanning cameras mounted on computers have become necessary tools for people without limbs or those affected with paralysis. The camera tracks the movement of the eye, allowing users to "type" on a virtual keyboard as they look at the screen. And now, researchers from the Cavendish Laboratory at Cambridge University say they have developed software that replaces the standard QWERTY keyboard layout with one that is nearly twice as efficient, more accurate and easier on the eyes. Called Dasher, the prototype program taps into the natural gaze of the eye and makes predictable words and phrases simpler to write. Any off-the-shelf camera capable of scanning eye movement can be used with Dasher, though the person must sit fairly still during the interaction.

  The letters of the alphabet appear in a single column on the right of the screen, with an underscore symbol to represent a space. Each letter is framed by a colored box. As the user looks at a particular letter on the right side of the screen and drags it to the left with their eyes, another sub-alphabet column begins to emerge inside the box on the right-hand side, along with more letters framed in colored boxes. Dasher is designed to anticipate which letter will be needed, so although the successive sub-alphabet columns are initially very small, the letters or combination of letters that simultaneously appear are most likely to be used next in that sequence. For example, if a person starts with the letter "h," the language models in Dasher will bring up "a," "e," "i," "o" and "u" in the sub-alphabet box, along with a few other possible combinations like "ello" to form the word "hello." Each box has a complete alphabet within it, though the first letters to appear have the highest probability of usage. The letters are then placed together to form a sentence on the left side of the screen.

  Researchers say people will be able to write up to 25 words per minute with Dasher compared to on-screen keyboards, which they say average about 15 words per minute. With a bit of practice, MacKay said, Dasher offers an easier and more satisfying way for disabled people to communicate, providing them with better tools to write e-mail or create word processor files. MacKay said Dasher could work in most languages.

  21."Paralysis"(Paragraph 1, Line 3) probably means .

  A. short-sightedness   B. allergy   C. inability to move   D. color-blindness

  22. With the new software Dasher, people can type with their eyes through .

  A. a computer screen with eye-scanning sensors

  B. an eye-scanning camera on computer

  C. a colored box attached to the computer

  D. a regular keyboard with sensors

  23. The new method of typing will most benefit those people who .

  A. have reading difficulties  B. are physically handicapped

  C. are visually incompetent  D. do not have a big vocabulary

  24. The software Dasher .

  A. is able to predict the next sequence of words the user is going to write

  B. does not allow the user to move a lot during the interaction

  C. has to be used with eye-scanning cameras specially designed for the software

  D. can form coherent sentences based on the first word typed by the user

  25. People will be able to write as many as words per minute with Dasher.

  A. 15   B.20   C.25   D. 30

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