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A．begin a completely new net
B．destroy the half-made net
C．spin the rest of the net
D．stay away from the net
答案
更多“Based on the example provided in the passage, we can tell that when a spider is removed to”相关的问题
第1题
The author gave an example in the third paragraph in order to().
A. emphasize the need to place a stronger value on national cooperation
B. explain why the American idea has been based on individual freedom
C. illustrate the fact that the Americans will not sacrifice their personal interest for the good of the entire country
D. support the idea that Americans need the spirit of national cooperation to achieve important national objectives in the 21st century
第2题
（71）
A. number
B. connection
C. diagram
D. cost
（72）
A. process
B. hop
C. route
D. flow
（73）
A. flow
B. window
C. route
D. cost
（74）
A. packet
B. throughput
C. error
D. number
（75）
A. delay
B. stream
C. packet
D. cost
第3题
Much unfriendly feeling towards computers has based on the fear of widespread unemployment resulting from their introduction. Computers are often used as part of automated production systems required a least possible number of operators, causing the loss 【M1】______
of many jobs.This has been happened, for example, in many steelworks. 【M2】______
On the other hand, computers does create jobs. They are more skilled and better 【M3】______
paid, though less in number than those they replaced. Many 【M4】______
activities can not continue in their present form. without computers, no matter how 【M5】______
many people are employed. Examples is the check clearing(票据交换) 【M6】______
system of major banks and the weather forecasting system. When a firm
introduces computers, few people are usually employed in key posts (such as jobs 【M7】______
of operation managers)while other staff is retrained as operators, programmers, data 【M8】______
preparation staff. After the new system have settled down, people in non-computer 【M9】______
jobs are not always replaced.
When they leave, resulting to a decrease in the number of employees. 【M10】______
This decrease is sometimes balanced by a substantial increase in the activity of the firm, resulting from the introduction of computers.
【M1】
第4题
Questions 61-65 are based on Passage Two:
Passage Two
As the 21st century begins, a number of leaders in politics, education, and other professions believe that the US must adopt some new values to go along with the old traditional ones. What new values should Americans adopt？ This is a very difficult question to answer. Certainly, a greater value should be placed on the conservation of natural reasources; Americans should learn to use less and waste less. But conservation has never been a strong value to Americans, who have believed that their country offered an endless,abundant supply of natural resources.
Recently, progress has been made-more and more Americans are recycling their paper, cans,bottles,and other goods-but old wasteful habits died hard. Furthermore,the need to protect the environment may conflict with the need for jobs,as in the Northwest ,where conservationists battle lumber companies that want to cut down ancient redwood trees. A belief in the value of conservation is still compared with other American values; it can become stronger only as Americans see the need for it more clearly.
In addition,Americans may need to place a strong value on cooperation on a national scale to achieve important national objectives. The American idea of the national good has never been based on national cooperation but rather on the freedom of the individual, maintaining those conditions that provide the greatest freedom and prosperity for the individual .
It is far more difficult for Americans to accept shared sacrifice for the common good and wellbeing of the entire country. For example ,although the majority of Americans believe that it is extremely important to balance the national budget and reduce the deficit, they do not want to see cuts in government programs that benefit them personaliy.
The American value of competition also hinders the development of a spirit of national cooperation. Competition sometimes encourages feelings of suspicion rather than the mutual trust that is necessary for successful national cooperation. Although Americans often cooperate successfully on the local level-in neighborhood groups and churches, for example, on the national level, they may see themselves as part of an interest group that is competing with other interest groups for government funds. A request by the national government for shared sacrifice may be seen as coercive and destructive rather than voluntary and constructive. However, the demands for the 21st century may compel Americans to place a greater value on national cooperation to solve problems that affect them all, directly and indirectly.
The best TITLE of this passage could be ().
A. Which is Better, New Value or Old Value？
B. Conservation vs. Need for Jobs
C. The Need for New National Values
D. Cooperation and Competition
第5题
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
第6题
Shopping is an important human【B6】where people meet and communicate. Yet shoppers are【B7】with a confusing situation and a(n)【B8】changing one. The confusion arises from the claims【B9】advertising, from inadequate information about new products, new materials, new places to shop—a【B10】enhanced by rising prices and a(n)【B11】choice of goods than ever before. The search【B12】the right purchase is based on ignorance of【B13】own needs and ignorance of the product's【B14】for those needs. When choosing any particular item, there are【B15】lines of communication which might provide some guidance.【B16】none of these is entirely satisfactory. For example, you can ask a shop assistant initially.【B17】you find one, she may quite【B18】not know the answers. She may be a【B19】with a Saturday job, or a housewife【B20】part-time.
【B1】
A．taste
B．flavo
C．fragrance
D．smell
第7题
【C12】______, in their private everyday lives, the British as individuals are probably less【C13】______to follow tradition than【C14】______the people of most other countries. There are very few ancient traditions that are followed by the majority of families on special【C15】______. The country has fewer local【C16】______with genuine folk roots than most other countries have. The English language has fewer sayings that are【C17】______common everyday use than many other languages do. The British are too individualistic for these things.【C18】______, it should be【C19】______that they are the most enthusiastic video-watching people in the world the very opposite of a traditional【C20】______!
【C1】
A．leave
B．lag
C．follow
D．lack
第8题
Myers is the founder of Auburn University’s Institute for Biological Detection Systems, the main task of which is to chase the ultimate in detection devices—an artificial nose.
For now, the subject of their research is little more than a stack of gleaming chips tucked away in a laboratory drawer. But soon, such a tool could be hanging from the belts of police, arson (纵火) investigators and food-safety inspectors.
The technology that they are working in would suggest quite reasonably that, within three to five years, we’ll have some workable sensors ready to use. Such devices might find wide use in places that attract terrorists. Police could detect drugs, bodies and bombs hidden in cars, while food inspectors could easily test food and water for contamination.
The implications for revolutionary advances in public safety and the food industry are astonishing. But so, too, are the possibilities for abuse; Such machines could determine whether a woman is ovulating (排卵), without a physical exam-or even her knowledge.
One of the traditional protectors of American liberty is that is has been impossible to search everyone. That’s getting not to be the case.
Artificial biosensors created at Auburn work totally differently from anything ever seen before. Aroma Scan, for example, is a desktop machine based on a bank of chips sensitive to specific chemicals that evaporate into the air. As air is sucked into the machine, chemicals pass over the sensor surfaces and produce changes in the electrical current flowing through them. Those current changes are logged into a computer that sorts out odors based on their electrical signatures.
Myers says they expect to load a single fingernail-size chip with thousands of odor receptors (感受器)， enough to create a sensor that’s nearly as sensitive as a dog’s nose.
第26题：Which of the following is within the capacity of the artificial nose being developed？
A) Performing physical examinations.
B) Locating places which attract terrorists.
C) Detecting drugs and water contamination.
D) Monitoring food processing.
第9题
Questions are based on the following passage．
According to a report from the Harvard School of Public Health， many everyday products， including some bug sprays and cleaning fluids， could lead to an increased risk of brain and behavioral disorders in children．The developing brain， the report says， is particularly （36） to the toxic effects of certain chemicals these products may contain， and the damage they cause can be （37） ．
The official policy， however， is still evolving．Health and environmental （38） have long urged U．S．government agencies to （39） the use of some of the 11 chemicals the report cites and called for more studies on their long-term effects．In 2001， for example， the Environmental Protection Agency（40）the type and amount of lead that could be present in paint and soil in homes and child-care （41）， after concerns were raised about lead poisoning．The agency is now （42）the toxic effects of some of the chemicals in the latest report．
But the threshold for regulation is high．Because children"s brain and behavioral disorders， like hyperactivity and lower grades， can also be linked to social and genetic factors， it"s tough to pin them on exposure to specific chemicals with solid （43）evidence， which is what the EPA requires．Even the Harvard study did not prove a direct（44）but noted strong associations between exposure and risk of behavioral issues．
Nonetheless， it"s smart to（45）caution．While it may be impossible to prevent kids from drinking tap water that may contain trace amounts of chemicals， keeping kids away from lawns recently sprayed with chemicals and freshly dry-cleaned clothes can"t hurt．
A．advocates
B．compact
C．correlation
D．exercise
E．facilities
F．interaction
G．investigating
H．overwhelmed
I．particles
J．permanent
K．restricted
L．simulating
M．statistical
N．tighten
O．vulnerable
第（36）题选
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第10题
is the founder of Auburn University's institute for Biological Detection Systems, the main task of which is to chase the ultimate in detection devices-an artificial nose.
For now, the subject of their research is little more than a stack of gleaming chips tucked away in a laboratory drawer. But soon, such a tool could be hanging form. the belts of police, arson (纵火) investigators and fund-safety inspectors. The technology that they are working on would suggest quite reasonable that, within three to five years, we'll have some workable sensors ready to use. Such devices might find wide use in places that attractterrorists. Police could detect drugs, bodies and bombs hidden in cars, while food inspectors could easily test food and water for contamination.
The implications for revolutionary advances in public safety and the food industry are astonishing. But so, too,are the possibilities for abuse: Such machines could determine whether a woman is ovulating (排卵), without a physical exam or even her knowledge.
One of the traditional protectors of American liberty is that it has been impossible to search everyone. That's getting not to be the case.
Artificial biosensors created at Auburn work totally differently from anything ever seen before. Aromascan, for example, is a desktop machine based on a bank of chips sensitive to specific chemicals that evaporate into the air. As air is sucked into the machine, chemicals pass over the sensor surfaces and produce changes in the electrical current flowing through them. Those current changes are logged into a computer that sorts out odors based on their electrical signatures.
Myers says they expect to lead a single fingernail-size chip with thousands of odor receptors(感受器), enough to create a sensor that's nearly as sensitive as a dog's nose.
Which of the following is within the capacity of the artificial nose being developed？
A．Performing physical examinations.
B．Locating places which attract terrorists.
C．Detecting drugs and water contamination.
D．Monitoring food processing.
