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真题模板·CMA 2017-08-11  文章作者:未知

(注:音频在文末)
Multiple-choice, choose multiple answers – Item 1
Question:
  The purpose of this talk is to _____
  A.suggest ways to make indoor more economical
  B.illustrate how an everyday object could inspire new technology
  C.persuade listeners to participate in a scieritific study
  D.describe an artistic excibition using familiar items
  E.encourage listeners to think creative about mundane items.
 
Transcript:
  If you think about light bulbs, they're an enormous infrastructure. They're in every building in the world, more or less, they have kind of a privileged position above us, around us, they can see, if you think about it, you know, most parts of any room. The kind of key was to say, well, what if we consider a light bulb not to be a light bulb, but actually to be a digital projector. It just happens to be really low resolution. In fact, it's a one by one pixel digital projector. You turn on the wall switch and a giant pixel comes out and paints your room. OK, well, that's ludicrous, but what if you put a higher resolution projector inside that same familiar glass bulb? Well, now you have a device that can illuminate. If you turn on all the pixels the same color, you still have a light bulb in the usual sense. But if you turn on the pixels different amounts and different colors, then you're kind of projecting information out into the world. And if at the same time that you're doing that, you put a little tiny
camera inside the bulb, then not only is information flowing out of the glass, but you're collecting optical information. So screw one of those into every one of these fixtures and suddenly you have a means potentially to put, display an interaction everywhere throughout the world.

 

Answers:
Correct 1: illustrate how an everyday object could inspire new technology.
Explanation: This response is correct. The speaker begins by considering a light bulb and what it does, and then imagines what could be done with it. As the speaker adds features to this imaginary light bulb, it changes from a low resolution projector, to a high resolution projector, to a device that projects and collects optical information.

Correct 2: encourage listeners to think creatively about mundane items.
Explanation: This response is correct. The speaker invites listeners to think about light bulbs then talks about their use in an unusual way. The speaker goes on to discuss the light bulb in ways most people don’t think about: “they’re an enormous infrastructure,” “they have a kind of privileged position above us,” and that light bulbs each project one giant pixel that “paints” the room.

Incorrect 1: suggest ways to make indoor lighting more economical.
Explanation: This response is incorrect. The speaker asks listeners to think about light bulbs and what could be done with them, but does not discuss this in terms of money.

Incorrect 2: persuade listeners to participate in a scientific study.
Explanation: This response is incorrect because the speaker does not mention a scientific study.
 
Incorrect 3: describe an artistic exhibition using familiar items.
Explanation: This response is incorrect. Art, art galleries, museums and exhibitions are not discussed in this recording.


Multiple-choice, choose multiple answers – Item 2
Question:
  What happened as a result of the arrival of colonists?

  A.Huge areas were deforcested.
  B.Old farming methods were abandone.
  C.Large expanses were planted with new species.
  D.Stone quanrries were depleted.
  E.Sections of land were delineated with stones.

Transcript:
  We are led to believe that basically much of eastern North America was heavily cloaked in mature forest, forest that today we covet as old growth, and yet at one time, it was the sort of ancestral, um,botanical blanket that covered much of certainly Massachusetts and New England. Certainly one of the first things that happened as increasing waves of colonists arrived was the need to clear the land, um, and this clearing of the land is something that started, um, really in the form of small, subsistence farms, uh, the timber was used for building houses, um for building ships, for firewood, for all manner of things. The boulders, the erratic, ah, the glacial erratic stones that were so much a part of the New England landscape, um, are today sort of, ah, what we find in the latticework of stone walls that one can find practically anywhere in the landscape, ah, if it's in a relatively untouched condition. By the early part of the ,ah, nineteenth century, ah, it's thought that generally the zenith of clearing had taken place, ah, sometime in the 1830s 1840s and the trees and the forests were essentially clear-cut, ah, to an extent that is almost unbelievable.


Answers:
Correct 1: Huge areas were deforested.
Explanation: This response is correct. The speaker says that one of the first things that happened as increasing waves of colonists arrived was the clearing of the land. The speaker also says that sometime in the 1830s and 1840s, the trees and the forests were essentially clear-cut.

Correct 2: Sections of land were delineated with stones.
Explanation: This response is correct. The speaker says that the glacial erratic stones that were so much a part of the New England landscape are today ‘‘sort of’’ what can be found in the latticework of stone walls that one can find practically anywhere in the landscape. This implies that stones were used to delineate sections of land.

Incorrect 1: Old farming methods were abandoned.
Explanation: This response is incorrect. Abandonment of old farming methods is not discussed in the recording.
 
Incorrect 2: Large expanses were planted with new species.
Explanation: This response is incorrect because new species are not mentioned in the recording.
 
Incorrect 3: Stone quarries were depleted.
Explanation: This response is incorrect. The speaker does not mention stone quarries in the recording.

 
 
 

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