Sorry to say, our brains naturally start slowing down at the Cruelty young age of 30. It used to be thought that this couldn't be helped, but new studies show that people of any age can train their br 题目和参考答案——青夏教育精英家教网—

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Sorry to say, our brains naturally start slowing down at the Cruelty young age of 30. It used to be thought that this couldn't be helped, but new studies show that people of any age can train their brains to work faster. "Your brain is a learning machine," says University of California scientist Dr. Michael Merzenich. Given the right tools, we can train our brains to act like they did when we were younger. All that's required is the practice designed just for the purpose: a few exercises for the mind.
Merzenich has developed a computer-based training method to speed up the process(过程) in which the brain deals with information (positscience.com). Since much of the data we receive comes through speech, the Brain Fitness Program works with language and hearing to better speed and accuracy (准确性).
Over the course of training, the program starts asking you to distinguish (辨别) sounds (between "dog" and "bog", for example) at an increasingly faster speed. It's a bit like tennis instructor, says Merzenich, hitting balls at you ~faster and faster to keep you challenged(受到挑战). You may start out slow, but before long you're pretty quick.
The biggest finding in brain research in the last ten years is that the brain at any age is highly plastic. If you ask your brain to learn, it will learn. And it may even speed up while in the process.
To keep your brain young and plastic you can do one of a million new activities that challenge and excite you: playing table tennis or bridge, doing crossword puzzles, learning a language.... "When it comes to preventing ageing, you really do 'use it or lose it' ," says Barbara Sahakian, professor at Cambridge University.
小题1:Dr. Merzenich’s training method mainly depends on ________.

A．speech training	B．computer languages
C．the activities one joins in	D．the information being dealt with

小题2: By saying "the brain at any age is highly plastic ", the writer probably means the brain can be______.

A．used

B．mastered

C．developed

D．researched

小题3:What can we learn from the text?

A．Practice makes a quick mind.

B．Brain research started ten yeas ago.

C．Dr. Merzenich is a scientist in computer,

D．People believed nothing could stop the brain slowing down.

小题4: Which of the following agrees with the writer's idea?

A．The training methods work better for the old.

B．People should use the brain to stop it from ageing.

C．The training of the brain should start at an early age.

D． It's necessary to take part in as many activities as possible.

小题1:A
小题2:C
小题3:D
小题4:B

小题1:细节理解，由文章第二段第二句话可知答案。
小题2:句意猜测，由短文第四段第二句话可知；如果你让你大脑学习，它就学习，并且在这过程中，能加快学习速度，由此可知大脑是可以“开发的”
小题3:推理判断，由文章第一段第二句话“It used to be thought that this couldn't be helped”可知答案。
小题4:细节理解，根据最后一段可知答案。

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2．A．by which            B．from which     C．of which           D．in which
3．A．give                B．produce        C．offer              D．supply
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完形填空（共15小题，每题1分，满分15分）
When I was a young child, my parents often told me that it was time that taught a man everything. I didn’t understand and wondered why _31_ had such a big influence _32_ a person. I thought I could grow up quickly to find it out as an adult. But now, _33_ I come to knock at the door of adulthood, I feel _34_ to express my own opinion on this saying. I know that I am just a high school student with very few experiences. There are still many things waiting for me in the future, yet I would like to express myself in a childish voice.
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We know that you have a high opinion of the kind of learning taught in your colleges, and that the costs of living of our young men, while with you, would be very expensive to you． We are certain that you mean to do us good by your suggestion; and we thank you heartily． But you must know that different nations have different ways of looking at things, and you will therefore not be displeased if our ideas of this kind of education happen not to be the same as yours． We have had some experience of it． Several of our young people were formerly brought up at the colleges of the northern provinces:
They were taught all your sciences; but, when they came back to us, they were bad manners, and they knew little of every means of living in the woods．．． they were totally good for nothing．
We are, however, not the less obliged for your kind offer, though we refuse to accept it; and, to show our grateful sense of it, if the gentlemen of Virginia will send us a dozen of their sons, we will take care of their education, teach them in all we know, and make men of them．
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A．the talk between the Indians and the officials

B．the colleges of the northern provinces
C．the educational values of the Indians
D．the problems of the Americans in the mid-eighteenth century
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A．politely refuse a friendly offer
B．express their opinions on equal treatment
C．show their pride
D．describe Indian customs

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A．young women should also be educated
B．they had different objects of education

C．they taught different branches of science
D．they should teach the sons of the officials first
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科目：高中英语 来源：不详 题型：阅读理解

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according to an. Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee, bush. He tried one and experienced the " wide-awake" feeling that one third of the world’s population now starts the day with.
1. according to the passage, which of the following has changed the most in the last 500 years?
A. Food.     B. Clothing.          C. Ideology.           D. Language.
2. The word "some" in the last sentence of the first paragraph refers to________.
A. some cocoa trees                  B. some chocolate drinks.
C. some shops                          D. some South American Indians
3. Thousands of Irish people starved during the " Potato Famine" because________
A. they were so dependent on potatoes that they refused to eat anything else
B. they were forced to leave their homeland and move to America
C. the weather conditions in Ireland were not suitable for growing potatoes
D. the potato harvest was bad
4. according to the passage, which of the following statements is NOT true?
A. One third of the world’s population drinks coffee.
B. Coffee is native to Colombia.
C. Coffee can keep one awake.
D. Coffee drinks were first made by Arabs.

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科目：高中英语 来源：不详 题型：阅读理解

Dropouts for Ph. D. s
Educators are seriously concerned about the high rate of dropouts among the doctor of philosophy candidates and the consequent loss of talent to a nation in need of Ph. D. s. Some have placed the dropouts loss as high as 50 percent. The extent of the loss was, however, largely a matter of expert guessing. Last week a well-rounded study was published. It was published. It was based on 22,000 questionnaires sent to former graduate students who were enrolled in 24 universities and it seemed to show many past fears to be groundless.
The dropouts rate was found to be 31 per cent, and in most cases the dropouts, while not completing the Ph. D. requirement, went on to productive work. They are not only doing well financially, but, according to the report, are not far below the income levels of those who went on to complete their doctorates.
Discussing the study last week, Dr. Tucker said the project was initiated 'because of the concern frequently expressed by graduate faculties and administrators that some of the individuals who dropped out of Ph. D. programs were capable of competing the requirement for the degree. Attrition at the Ph. D. level is also thought to be a waste of precious faculty time and a drain on university resources already being used to capacity. Some people expressed the opinion that the shortage of highly trained specialists and college teachers could be reduced by persuading the dropouts to return to graduate schools to complete the Ph. D.’
"The results of our research" Dr. Tucker concluded, "did not support these opinions."
1.    Lack of motivation was the principal reason for dropping out.
2.    Most dropouts went as far in their doctoral program as was consistent with their levels of ability or their specialties.
3.    Most dropouts are now engaged in work consistent with their education and motivation.
Nearly 75 per cent of the dropouts said there was no academic reason for their decision, but those who mentioned academic reason cited failure to pass the qualifying examination, uncompleted research and failure to pass language exams. Among the single most important personal reasons identified by dropouts for non-completion of their Ph. D. program, lack of finances was marked by 19 per cent.
As an indication of how well the dropouts were doing, a chart showed 2% in humanities were receiving $ 20,000 and more annually while none of the Ph. D. 's with that background reached this figure. The Ph. D. 's shone in the $ 7,500 to $ 15,000 bracket with 78% at that level against 50% for the dropouts. This may also be an indication of the fact that top salaries in the academic fields, where Ph. D. 's tend to rise to the highest salaries, are still lagging behind other fields.
As to the possibility of getting dropouts back on campus, the outlook was glum. The main condition which would have to prevail for at least 25 % of the dropouts who might consider returning to graduate school would be to guarantee that they would retain their present level of income and in some cases their present job.
小题1: The author states that many educators feel that
[A] steps should be taken to get the dropouts back to campus.
[B] the dropouts should return to a lower quality school to continue their study.
[C] the Ph. D. holder is generally a better adjusted person than the dropout.
[D] The high dropouts rate is largely attributable to the lack of stimulation on the part of faculty members.
小题2: Research has shown that
[A] Dropouts are substantially below Ph. D. 's in financial attainment.
[B] the incentive factor is a minor one in regard to pursuing Ph. D. studies.
[C] The Ph. D. candidate is likely to change his field of specialization if he drops out.
[D] about one-third of those who start Ph. D. work do not complete the work to earn the degree.
小题3: Meeting foreign language requirements for the Ph. D.
[A] is the most frequent reason for dropping out.
[B] is more difficult for the science candidate than for the humanities candidate.
[C] is an essential part of many Ph. D. programs.
[D] does not vary in difficulty among universities.
小题4: After reading the article, one would refrain from concluding that
[A] optimism reigns in regard to getting Ph. D. dropouts to return to their pursuit of the degree.
[B] a Ph. D. dropout, by and large, does not have what it takes to learn the degree.
[C] colleges and universities employ a substantial number of Ph. D. dropouts.
[D] Ph. D. 's are not earning what they deserve in nonacademic positions.
小题5: It can be inferred that the high rate of dropouts lies in
[A] salary for Ph. D. too low.
[B] academic requirement too high.
[C] salary for dropouts too high.
[D] 1000 positions.

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