[外语类试卷]大学英语六级模拟试卷352及答案与解析.doc
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1、大学英语六级模拟试卷 352及答案与解析 一、 Part I Writing (30 minutes) 1 Directions: For this part, you are allowed30 minutes to write a composition with the title of Is the Expansion of Enrollment a Good Thing, giving an introduction of the advantages and disadvantages of colleges rapid expansion and your own point o
2、f view. You should write at least 150 words following the outline given below in Chinese: 1. 高校扩招是一件好事 2. 高校扩招公带来一些问题 3. 我的观点 二、 Part II Reading Comprehension (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questio
3、ns attached to the passage. For questions 1-4, mark: Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Bird Brains Cracking
4、Walnuts The scene: a traffic light crossing on a university campus in Japan. Carrion crows and humans line up patiently, waiting for the traffic to halt. When the lights change, the birds hop in front of the cars and place walnuts, which they picked from the adjoining trees, on the road. After the l
5、ights turn green again, the birds fly away and vehicles drive over the nuts, cracking them open. Finally, when its time to cross again, the crows join the pedestrians and pick up their meal. Biologists already knew the corvine family-it includes crows, ravens, rooks, magpies and jackdaws-to be among
6、 the smartest of all birds. But this remarkable piece of behavior would seem to be a particularly acute demonstration of bird intelligence. Researchers believe they probably noticed cars driving over nuts fallen from a walnut tree overhanging a road. The crows already knew about dropping clams from
7、a height on the seashore to break them open, but found this did not work for walnuts because of their soft green outer shell. Other birds do this, although not with quite the same precision. In the Dardia Mountains of Greece, eagles can be seen carrying tortoises up to a great height and dropping th
8、em on to rocks below. Do Birds Have Intelligence? Scientists have argued for decades over whether wild creatures, including birds, show genuine intelligence. Some still consider the human mind to be unique, with animals capable of only the simplest mental processes. But a new generation of scientist
9、s believes that creatures, including birds, can solve problems by insight and even learn by example, as human children do. Birds can even talk in a meaningful way. Good Memory Some birds show quite astonishing powers of recall. A type of North American crow may have the animal worlds keenest memory.
10、 It collects up to 30,000 pine seeds over three weeks in November, and then carefully buries them for safe keeping across over an area of 200 square miles. Over the next eight months, it succeeds in retrieving over 90 percent of them, even when they are covered in feet of snow. Making and Using Tool
11、s On the Pacific island of New Caledonia, the crows demonstrate a tool-making, and tool using capability comparable to Paleolithic mans. Dr Gavin Hunt, a New Zealand biologist, spent three years observing the birds. He found that they used two different forms of hooked “tool“ to pull grubs from deep
12、 within tree trunks. Other birds and some primates have been seen to use objects to forage. But what is unusual here is that the crows also make their own tools. Using their beaks as scissors and snippers, they fashion hooks from twigs, and make barbed, serrated rakes or combs from stiff leathery le
13、aves. And they dont throw the tools away after one use-they carry them from one foraging place to another. Scientists are still debating what this behavior means. Mans use of tools is considered a prime indication of his intelligence, is this a skill acquired by chance? Did the crows acquire tool ma
14、king skills by trial and error rather than planning? Or, in its ability to adapt and exploit an enormous range of resources and habitats, is the crow closer to humans than any other creature? Dr Hunt said this of his research: “There are many intriguing questions that remain to be answered about cro
15、ws tool behavior. Most important would be whether or not they mostly learn or genetically inherit the know-how to make and use tools. Without knowing that it is difficult to say anything about their intelligence, although one could guess that these crows have the capability to be as clever as crows
16、in general.“ The woodpecker finch is another consummate toolmaker; It will snap off a twig, trim it to size and use it to pry insects out of bark. In captivity, a cactus finch learnt how to do this by watching the woodpecker finch from its cage. The teacher helped the pupil by passing a ready- made
17、spine across for the cactus finch to use. Communication Ability Another sign of intelligence, thought to be absent in most non-human animals, is the ability to engage in complex, meaningful communication. The work of Professor Irene Pepperberg of the University of Arizona, Tucson, has now shown the
18、general perception of parrots as mindless mimics to be incorrect. The captive African grey parrot Alex is one of a number of parrots now believed to have the intelligence and emotional make-up of a 3 to 4 year old child. Under the tutelage of Professor Pepperherg, he acquired a vocabulary of over 10
19、0 words. He could say the words for colors and shapes and, apparently, use them meaningfully. He has learned the labels for more than 35 different objects; he knows when to use “no,“ and phrases such as “come here,“ “I want X,“ and “Wanna go Y.“ A birds ability to understand, or speak, another birds
20、 language can be very valuable. New Zealand saddlebacks occupy the same territory for years. They have distinct song “dialects“ passed on through the generations. New territory vacancies are hard to find, so young males are always on the look-out for new widows into whose territory they can move. Wh
21、ile they wander around the forest, they learn the different dialect songs, just as we might learn a language or develop a regional dialect. As soon as a territory-owning male dies, a new young male may move in to take over within 10 minutes. He will immediately start singing the dialect of the terri
22、tory he is in. Possessing Abstract Concepts Intelligence-if this is what scientists agree these birds possess-is not limited to the birds we always thought of as “bright.“ In recent experiments at Cardiff University in Britain, a pigeon identified subtle differences between abstract designs that eve
23、n art students did not notice. It could even tell that a Picasso was not the same as a Monet. The experiment seems to show that pigeons can hold concepts, or ideas, in their heads. The visual concept for the pigeon is Picassos painting style. Social Necessity Makes Birds Smart. Scientists believe it
24、 is not physical need that drives creatures to become smarter, but social necessity. The complexities of living together require a higher level of intelligence. Corvids and parrots, along with dolphins, chimps, and humans are all highly social-and smart-animals. Some ravens certainly apply their int
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- 外语类 试卷 大学 英语六级 模拟 352 答案 解析 DOC
