试题库在线考试题库-历年真题模拟试题及答案-考博英语在线试题测试中心-希赛网

湖南农业大学

Directions: For this part, you are allowed 30 minutes to write a composition of no less than 150 words under the title of “Be Content or Not Content with Your Own Lot?” Write your composition in the proper space on the ANSWER SHEET.常言道：做人要知足，做事要知不足，做学问要不知足。请举例说明你对这句名言的看法和想法。

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爱因斯坦（Einstein）曾把一位著名科学家的创造力归因为“他没上过学，因此保留了能自由思考的能力。”看起来爱因斯坦好像是在批评学校教育。实际上学校的功能是传授知识和文明，而不只是培养天才。如果学校只传授知识，就会破坏创造力和天才。但是，如果一个社会里都是天才，它就会解体。所以，学校教育要培养社会所需的各个层次的人才。

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Drinking water and water for domestic use often come from groundwater. In order to protect this water, local water authorities can apply to local administrative authorities to mark certain locations as water protection areas. The size of these areas is calculated in such a way that the quantity of groundwater taken from them corresponds to the actual rainfall going into them. In the water protection areas certain uses of the land and activities on the land are banned or restricted. Water protection areas fall into three zones. Zone 3 is the outermost zone with a diameter of 4 kilometers around the groundwater well. Here no chemical works or the uses of pesticides are allowed. Zone 2 is determined around the so-called 50-day line. It is assumed that after 50 days the harmful bacteria in the groundwater will deposit and die off. Here settlements and fertilizer storage are forbidden. Zone 1 marks the ten-meter boundary around the well. Here, any use of the land, as well as access by unauthorized persons, is forbidden.

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Adult education is the practice of teaching and educating adults. This is often done in the work place, or _1_ “continuing education” courses at secondary schools, or at a college or university.Educating adults differs from educating _2_ in several ways. One of the most important _3_ is that adults have gained knowledge and experiences which can _4_ add value to a learning experience or interfere with it.Another important difference is that adults must frequently apply their knowledge in some _5_ fashion in order to learn effectively; there must be a _6_ and a reasonable expectation that the new knowledge will help them further that goal. One example, _7_ in the 1990s, was the spread of computer training courses in _8_ adults, most of them office workers, could enroll. These course would teach basic use of the operating system or _9_ application software. Because the skills required to interact with a PC were so new, many people who had been working white-collar jobs for ten years or more eventually took such training courses, either of their own will, to gain computer skills and thus earn higher pay, or _10_ of their bosses.

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The idea has reigned for years that the aging brain’s neurons die off by as many as 100,000 a day—taking with them life’s cherished memories. But, in fact neuron-biologists such as Alan Peters of Boston University have shown in recent studies that, while brain cells may shrink in old age, they don’t die off in large numbers.What’s more, say neuroscientists, it’s primarily the brain’s “hardware”—the billions of telephone-line-like connections and relay switches which act as processing equipment—that is vulnerable to wearing out with age. The brain’s “software”—the actual information that fills up the mind over a lifetime—doesn’t necessarily deteriorate. If anything, it can grow more sophisticated. So, just as running the latest software program on an old computer will take more time and may involve some trouble, one car still possess a first-rate intelligence while losing some cognitive speed later in life.When mental abilities do pass their peak, memory isn’t the first to go, Powell and others say. It’s usually the brain’s capacity to make sense of spatial relationships—map-reading or finding your car at the mall—which may begin to get difficult in your 40s.A decade later, the abstract reasoning required to make analogies dips downward. Next to drop is “verbal memory after delay”—remembering details of a story after having turned attention to other tasks. But some mental skills, such as the ability to concentrate or calculate math, seem to remain sturdy long into old age. And “procedural” memory—how to play golf or ride a bike—is usually not touched by aging.Even “common” memory loss, however, shouldn’t be considered normal. It could be treatable. Neurologists at Harvard are finding that, later in life, the brain often produces less acetylcholine (乙酰胆碱), a neurotransmitter involved in memory. Tentative results suggest that drugs could mimic the missing chemical. At least a dozen other substances are also being studied as potential memory boosters.1. According to the passage, when we are old ________.2. According to the neuroscientists, the information in our mind ________.3. The neuroscientists compare our brain with computer to show that ________.4. According to the passage, at what age do our brains work best?5. What might happen when we are in our 50s?6. Which of the following is the best title of this passage?

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