44. Which of the following statement is true of eye-trackers for consumer use？ A. They are costly. B. They are available.
C. They are installed in Google Glass headset. D. They are expected to come out soon. 45. What is Turner likely to study next?
A. How to drag and drop with gaze and taps. B. How to present the system in public. C. How to get touch screen involved.
D. How to cut and paste content from a public display.
补全短文：
The Day a language Died
When Candos Westez died at the age of 76, a language died, too, Westez, more commonly known as Rad Thunder Cloud, was the last speaker of the Native American language, Catawba. Anyonne who wants to hear various songs of the Catawba can contact the Smithsonian Institution in Washington, D.C., where ,back ___46___ They are all the that is of the Catawba language The language that people used to speak is gone forever.
We are all aware of the damage that modern industry can do to the
world’s ecology (生态).However ,few people are aware of the impact that widely spoken all over the world .Chinese ,Spanish, Russian, and Hindi have become powerful languages, as well, ___47___ When this happens ,hundreds of languages that are spoken by only a few people die out.
Scholars believe there are about 6,000 languages around the world , but more than half of them could die out within the next100 years. There are many examples. Areaki is a native languages of the island of Vanuatu, located in the Pacific Ocean. It is spoken by only a few older adults, so like Catawba ,Arahi will soon disappear .Many languages of Ethiopia will have the same fate because each one has only a few speakers.___48___. In the American 100 languages, each of which has fewer than 300 speaker ,also are dying out.
Red Thunder Cloud was one of the first to recognize the threat of language death and to try to do something about it. He was not actually born into the Catawba tribe, and the language was not his mother tongue___49___The songs he sang for the Smithsonian Institution helped to make Native American music popular. Now he is gone, and language is dead.
What does it mean when a language disappear ?When a plant or insect or animal species dies. It is easy to understand what we’ve lost and appreciate what this means for the balance of the nature world.
However, language is only a product of the mind. To be the last remaining speaker of a language, like Red Thunder Cloud. Must be a lonely destiny, almost as strange and temble as being last surviving member of a dying species___50___
A. As these language become more powerful, their use as tools f business and culture increases.
B. For the rest of us, when a language dies, we lose the possibility of a unique way of seeing and describing the world. C. These languages don’t have many native speaker.
D. However, he is a frequent visitor to the Catawba reservation in South Carolina.
E. Papua New Guinea is an extremely rich source of different language, but more than 100 of them are in danger of extinction(灭绝).
F. Some people might want to try to learn some of these songs by heart 完形填空：
Underground Coal Fires a Looming Catastrophe
Coal burning deep underground in China, India and Indonesia is threatening the environment and human life, scientists have warned, these large-scale __51__ blazes cause the ground temperature to heat up and kill surrounding vegetation, produce greenhouse gases and can __52__ ignite forest fires, a panel of scientists told the annual meeting of
the American Association For the Advancement of Science in Denver. The resulting __53__ of poisonous elements like arsenic and mercury can also pollute local water sources and soils, they warned.
“Coal fires are a global catastrophe,” said Associate Professor Glenn Stracher of East Georgia College in Swainsboro, USA, But __54__ few people know about them.
Coal can heat up on its own, and eventually catch fire and burn, if there is a continuous oxygen supply. The heat produced is not cause to __55__ and under the right combinations of sunlight and oxygen, can trigger spontaneous catching fire and burning. This can occur underground, in coal stockpiles, abandoned mines or even as coal is transported. __56__ fires in China consume up to 200 million tones of coal per year, delegates were told. In __57__, the U.S. economy consumes about one billion tones of coal annually, said Stracher, __58__ analysis of the likely impact of coal fires has been accepted for publication in the International Journal of Coal Ecology. __59__ underway, coal fires can burn for decades, even centuries. In the process, they release large __60__ of greenhouse gases poisonous fumes and black particles into the atmosphere.
The members of the panel discussed the __61__ these fires may be having on global and regional climate change, cand agreed that the underground nature of the fires makes them difficult to__62__.
Ultimately, the remote sensing and other techniques should allow scientists to __63__ how much carbon dioxide these fires are emitting. One suggested __64__ of containing the fires was presented by Gary Colaizzi, of the engineering firm Goodson, which has developed a heat-resistant grout (a thin mortar used to fill cracks and crevices., which is designed to be pumped into the coal fire to __65__ the oxygen supply.
51. A. house 52. A. only
53. A. release 54. A. happily
B. underground C. sky
B. even
C. just
D. water
D. then
B. paste B. traditionally C. consumption D. elimination C. surprisingly D. fashionably
55. A. exchange 56. A. Most
B. regenerate
C. disappear D. transfer
D. Many
B. Such C. Some C. time
57. A. comparison B. case 58. A. which 59. A. Yet
B. who
D. turn D. what D. Once
C. whose
B. Unless B. volumes
C. Although
60. A. data 61. A. attack impilication
C. figures
D. images
B. impact C. identification D.
62. A. develop 63. A. estimate 64. A. cause
B. relieve C. detect C. gather
D. supply D. illustrate
B. experiment
B. method B. back up
C. treatment D. rule C. run out
D. cut off
65. A. take up
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