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[主观题]

Questions 26 to 30 are based on the following passage. There are some each phenomena you c

an count on, but the magnetic field, someday is not of them. It fluctuates in strength, drifts from its axis, and every few 100,000 years undergo, dramatic polarity reversal-a period when North Pole becomes South Pole and South Pole becomes North Pole. But how is the field generated, and why is it so unstable？

Groundbreaking research by two French geophysicists promises to shed some light on the mystery. Using 80 metres of deep sea sediment (沉淀物) core, they have obtained measurements lots of magnetic-field intensity that span 11 polarity reversals and four million years. The analysis reveals that intensity appears to fluctuate with a clear, well-defined rhythm. Although the strength of the magnetic field varies irregularly during the short term, there seems to be an inevitable long-term decline preceding each polarity reversal. When the poles flip—a process that takes several hundred thousand years-the magnetic field rapidly regains its strength and the cycle is repeated.

The results have caused a stir among geophysicists. The magnetic field is thought to originate from molten (熔化的) iron in the outer core, 3,000 kilometers beneath the earth’s surface. By studying mineral grains found in material ranging from rocks to clay articles, previous researchers have already been able to identify reversals dating back 170 million years, including the most recent switch 730,000 years ago. How and why they occur, however, has been widely debated. Several theories link polarity flips to external disasters such as meteor (陨星) impacts. But Peter Olson, a geophysicist at the Johns Hopkins University in Baltimore, says this is unlikely if the French researchers are right. In fact, Olson says intensity that predictably declines from one reversal to the next contradicts 90 percent of the models currently under study. If the results prove to be valid geophysicists will have a new theory to guide them in their quest to understand the earth’s inner physics. It certainly points the direction for future research.

第26题：Which of the following titles is most appropriate to the passage？

A) Polarity Reversal: A Fantastic Phenomenon of Nature.

B) Measurement of the Earth’s Magnetic-Field Intensity.

C) Formation of the Two Poles of the Earth.

D) A New Approach to the Study or Geophysics.

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发布时间：2021-01-17
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更多“Questions 26 to 30 are based on the following passage. There are some each phenomena you c”相关的问题

第1题

Passage Two:Questions 26 to 30 are based on the following passage.A breakthrough （突破) in

Passage Two:Questions 26 to 30 are based on the following passage.A breakthrough (突破) in the provision of energy from the sun for the European Economic Community (EEC) could be brought forward by up to two decades, if a modest increase could be provided in the EEC’s research effort in this field, according to the senior EEC scientists engaged in experiments in solar energy at EEC’s scientific laboratories at Ispra, near Milan.

The senior West German scientist in charge of the Community’s solar energy programme, Mr. Joachim Gretz, told journalists that at present levels of research spending it was most unlikely that solar energy would provide as much as three per cent of the Community’s energy requirements even after the year 2000. But he said that with a modest increase in the present＜ sums, devoted by the EEC to this work it was possible that the breakthrough could be achieved by the end of the next decade.

Mr. Gretz calculates that if solar energy only provided three per cent of the EEC’s needs, this could still produce a saving of about a billion pounds in the present bill for imported energy each year. And he believes that with the possibility of utilizing more advanced technology in this field it might be possible to satisfy a much bigger share of the Community’s future energy needs.

At present the EEC spends about $2.6 millions a year on solar research at Ispra, one of the EEC’s official joint research centres, and another $3 millions a year in indirect research with universities and other independent bodies.

第26题：The phrase “be brought forward” (Line 2, Para. 1) most probably means ________.

A) be expected

B) be completed

C) be advanced

D) be introduced

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第2题

Passage Four:Questions 26 to 30 are based on the following passage.Violin prodigies （神童)

Passage Four:Questions 26 to 30 are based on the following passage.Violin prodigies (神童), I learned, have come in distinct waves from distinct regions. Most of the great performers if the late 19th and early 20th centuries were born and brought up in Russia and Eastern Europe. I asked Isaac Stern, one of the world’s greatest violinists the reason for this phenomenon. “It is very clear,” he told me. “They were all Jews (犹太人) and Jews at the time were severely oppressed and ill-treated in that part of the world. They were not allowed into the professional fields, but they were allowed to achieve excellence on a concert stage.” As a result, every Jewish parent’s dream was to have a child in the music school because it was a passport to the West.

Another element in the emergence of prodigies, I found, is a society that values excellence in a certain field to nurture (培育) talent. Nowadays, the most nurturing societies seem to be in the Far East. “In Japan, a most competitive society, with stronger discipline than ours,” says Isaac Stem, children are ready to test their limits every day in many fields, including music. When Western music came to Japan after World War II, that music not only became part of their daily lives, but it became a discipline as well. The Koreans and Chinese as we know, are just as highly motivated as the Japanese.

That’s a good thing, because even prodigies must work hard. Next to hard work, biological inheritance plays an important role in the making of a prodigy. J. S. Bach, for example, was the top of several generations of musicians, and four of his sons had significant careers in music.

第26题：Jewish parents in Eastern Europe longed for their children to attend music school because ________.

A) it would allow them access to a better life in the West

B) Jewish children are born with excellent musical talent

C) they wanted their children to enter into the professional field

D) it would enable the family to get better treatment in their own country

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第3题

Did you ever have someone's name on the tip of your tongue and yet you were unable to reca
ll it？【21】this happens again, do not try to recall it. Do something【22】for a couple of minutes, and the name may come into your head. The name is there. Since you have met【23】person and learned his name. It only has to be dug out. The initial effort to recall【24】the mind for operation, but it is the subconscious【25】that go to work to dig up a dim memory. Forcing yourself to recall almost never helps because it doesn't loosen your memory; it only tightens it. Students find the preparatory method helpful【26】examinations. They read over the questions【27】trying to answer any of them. Then they answer first the ones【28】which they are most confident. Meanwhile, deeper mental activities in the subconscious mind are taking【29】; work is being done on the more difficult question. By the time the easier questions are answered, answers to the more difficult ones will usually begin to【30】into consciousness. It is often just a question of waiting for recall to come to the memory.

(61)

A．Whether

B．When

C．While

D．As

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第4题

Questions 26 to 28 are based on the conversation you have just heard.A．It is ente

Questions 26 to 28 are based on the conversation you have just heard.

A．It is entertaining.

B．It is a costly hobby.

C．It takes lots of time.

D．It requires training.

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第5题

26－28 Questions26 to 28 are based on the conversation you just heard.第26题：

26-28 Questions 26 to 28 are based on the conversation you just heard.

第26题：

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第6题

Questions 24 to 26 are based on the conversation you have just heard.第24题：A)2008 Olympic

Questions 24 to 26 are based on the conversation you have just heard.

第24题：

A)2008 Olympic Games. B)Opening Ceremonies.

C)Lighting the Olypmic Flames. D)Some hall games.

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第7题

Passage Four Questions 26 to 30 are based on the following passage. Exercise is one of

Passage Four Questions 26 to 30 are based on the following passage.

Exercise is one of the few factors with a positive role in long-term maintenance of body weight.Unfortunately, that message

has not gotten through to the average American, who would rather try switching to "light" beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet.

In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts;for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. "Exercise by itself is a very tough way to lose weight," says York Onnen, program director of the President's Council on Physical Fitness and Sports.

Still, exercise's supporting role in weight reduction is vital. A study at the Boston University

Medical Center of overweight police officers and other public employees confirmed that those

who dieted without exercise regained almost all their old weight, while those who worked exercise

into their daily routine maintained their new weight.

If you have been sedentary (极少活动的 ) and decide to start walking one mile a day, the

added exercise could burn an extra 100 calories daily. In a year's time, assuming no increase in

food intake, you could lose ten pounds. By increasing the distance of your walks gradually and

making other dietary adjustments, you may lose even more weight.

26. What is said about the average American in the passage？

A．They tend to exaggerate the healthful effect of “light” beer

B．They usually ignore the effect of exercise on losing weight

C．They prefer “light” beer and low-calorie bread to other drinks and food

D．They know the factors that play a positive role in keeping down body weight

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第8题

听力原文：On Feb 15th, 1989, an instant survey was carried out among 18 overseas postgradua

听力原文： On Feb 15th, 1989, an instant survey was carried out among 18 overseas postgraduate students. Eleven students were male and seven were female. The purpose of the survey was to discover the views of the students on a number of matters of personal concern. The survey was conducted by means of a questionnaire given to the students to complete. There were five questions. The first question concerned favorite color and the .second favorite number. The next 3 questions were all concerned with aspects of marriage. No. 3 looked at the ideal age to get married, No. 4 examined the qualities looked for in a partner and No. 5 asked about the ideal number of children. The main findings were as follows: Blue was the most popular color. This was followed by Green and Purple. There was no real significance in the choice of lucky numbers. About one third of the students said that they had none. Sixty-one percent of the students selected the age group 26 to 30 years as ideal for marriage, followed by 21 to 25 years. In looking for the most important qualities in an ideal partner, someone hoped the person to be Intelligent, others chose Natural, and still others indicated Attractive and Honest. The ideal number of children was 2, followed by 3. It is not easy to reach any definite conclusions based upon such a small sample of students from such widely different backgrounds. However, it is clear that majority favorite of 26 to 30 is the ideal age to get married with an intelligent partner, thereby producing 2 children.

(23)

A．Personal matters.

B．Social problems.

C．Family planning.

D．Family relations.

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第9题

听力原文：On 15th, Feb 1989 an instant survey was carded out among 18 overseas postgraduate

听力原文： On 15th, Feb 1989 an instant survey was carded out among 18 overseas postgraduate students. 11 students were male and 7 were female. The purpose of the survey was to discover the views of the students on a number of matters of personal concern. The survey was conducted by means of a questionnaire given to the students to complete. There were 5 questions. The first question concerned favorite color and the second favorite number. The next 3 questions were all concerned with aspects of marriage. No. 3 looked at the ideal age to get married, No. 4 ex mined the qualities looked for in a partner and No. 5 asked about the ideal number of children. The main findings were as follows. Blue was the most popular color. This was followed by Green and Purple. There was no real significance in the choice of lucky number. About one third of the students said that they had none. Sixty-one percent of the students selected the age group 26 to 30 years as ideal for marriage, followed by 21 to 25 years. In looking at the most important qualities in an ideal partner, someone hoped the person to be Intelligent, others chose Natural, still others indicated Attractive and Honest. The ideal number of children was 2, followed by 3. It is not easy to reach any del mite conclusions based upon such a small sample of students from such widely different backgrounds. However, it is clear that the majority favoried 26 to 30 as the ideal age to get married with an intelligent partner, producing 2 children.

(33)

A．18 American undergraduates.

B．18 overseas undergraduates,

C．18 American postgraduates.

D．18 overseas postgraduates.

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第10题

Passage Two Questions 26 to 30 are based on the following passage. When it comes to sing

Passage Two Questions 26 to 30 are based on the following passage.

When it comes to singling out those who have made a difference in all our lives, you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars — one, strange to say, that originated in slaughterhouses.

Back in the early 1900’s, slaughterhouses used what could have been called a “disassembly line”. Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto (磁发电机). Rather than have each worker completely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another component to it, the same one each time. Professor David Hounshell of the University of Delaware, an expert on industrial development, tells what happened:

“The previous day, workers carrying out the entire process averaged one assembly every 20 minutes. But on that day, on the line, the assembly team averaged one every 13 minutes and 10 seconds per person.”

Within a year, the time had been reduced to five minutes. In 1913, Ford went all the way. Hooked together by ropes, partially assembled vehicles were towed past workers who completed them one piece at a time. It wasn’t long before Ford was turning out several hundred thousand cars a year, a remarkable achievement then. And so efficient and economical was this new system that he cut the price of his cars in half, to $260, putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers all over the world copied him. In fact, he encouraged them to do so by writing a book about all of his innovations, entitled Today and Tomorrow. The Age of the Automobile had arrived. Today, aided by robots and other forms of automation, everything from toasters to perfumes is made on assembly lines.

第27题：In Paragraph 1, the author gives a historian’s statement about Henry Ford to show _________.

A) Henry Ford is quite popular with historians

B) historians are quite interested in Henry Ford

C) Henry Ford’s influence on history can hardly be ignored

D) manufacturing is among the subjects of historians’ study

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第11题

Questions 26 to 30 are based on the following passage. To understand the marketing concep
t, it is only necessary to understand the difference between marketing and selling. Not too many years ago, most industries concentrated primarily on the efficient production of goods, and then relied on “persuasive salesmanship” to move as much of these goods as possible. Such production and selling focuses on the needs of the seller to produce goods and then convert them into money.

Marketing, on the other hand, focuses on the wants of consumers. It begins with first analyzing the preferences and demands of consumers and then producing goods that will satisfy them. This eye-on-the-consumer approach is known as the marketing concept, which simply means that instead of trying to sell whatever is easiest to produce or buy for resale, the makers and dealers first endeavor to find out what the consumer wants to buy and then go about making it available for purchase.

This concept does not imply that business is benevolent (慈善的) or that consumer satisfaction is given priority over profit in a company. There are always two sides to every business transaction-the firm and the customer-and each must be satisfied before trade occurs. Successful merchants and producers, however, recognize that the surest route to profit is through understanding and catering to customers. A striking example of the importance of catering to the consumer presented itself in mid-1985, when Coca Cola changed the flavor of its drink. The non-acceptance of the new flavor by a significant portion of the public brought about a prompt restoration of the Classic Coke, which was then marketed alongside the new. King Customer ruled!

第26题：The marketing concept discussed in the passage is, in essence, ________.

A) the practice of turning goods into money

B) making goods available for purchase

C) the customer-centred approach

D) a form. of persuasive salesmanship

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