题目内容
A Biological Clock
Every living thing has what scientists call a biological clock that controls behavior. The biological clock(1)plants when to form. flowers and when the flowers should open. It tells insects when to(2)the protective cocoon (防护卵袋) and fly away, and it tells animals and human beings when to eat, sleep and wake.
Events outside the plant and animals(3)the action of some biological clocks. Scientists recently found, for example, that a tiny animal changes the color of its fur because of the(4)of hours of daylight. In the short(5)of winter, its fur becomes white. The fur becomes gray brown in(6)in the longer hours of daylight in summer.
Inner signals control other(7)clocks. German scientists found that some kind of internal clock seems to order birds to begin their long migration(8)twice each year, Birds(9)from flying become restless when it is time for the trip,(10)they become calm again when the time of the flight has ended.
Scientists say they are beginning to learn which(11)of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain(12)to control the timing of some of our actions. These(13)tell a person when to wake, when to(14), and when to seek food. Scientists say there probably are other biological clock cells that(15)other body activities.
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甲股份有限公司申请股票上市，已知其注册资本为5亿元人民币，其公开发行的股份最少应当达到公司股份总数的10%。 ()
Telecommuting-substituting the computer for the trip to the job-has been hailed as a solution to all kinds of problems related to office work.
Far workers it promises freedom from the office, less time wasted in traffic, and help with child-care conflicts, For management, telecommuting helps keep high performers on beard, minimizes tardiness and absenteeism by eliminating commutes, allows periods of solitude for high concentration tasks, and provides scheduling flexibility. In some areas, such as Southern California and Seattle, local governments are encouraging companies to start telecommuting programs in order to reduce rush-hour congestion and improve air quality.
But these benefits do not come easily. Making a telecommuting program work requires careful planning and an understanding of the differences between telecommuting realities and popular images.
Many workers are seduced by rosy illusions of life as a telecommuter. A computer programmer from New York City moves to the tranquil Adirondack Mountains and stays in contact with her office via computer. A manager comes in to his office three days a week and works at home the other two. An accountant stays home to care for her sick child and does office work between calls to the doctor.
These are powerful images, but they are a limited reflection of reality. Telecommuting workers soon learn that it is almost impossible to concentrate on work and care for a young child at the same time. Before a certain age, young children cannot recognize the necessary boundaries between work and family. Additional child support is necessary if the parent is to get any work done.
Management, too, must separate the myth from reality. Although the media has paid a great deal of attention to telecommuting, in most cases it is the employees' situation, not the availability of technology that precipitates a telecommuting arrangement.
That is partly why, despite the widespread press coverage, the number of companies with work-at-home programs or policy guidelines remains small.
Which of the following is not mentioned as a problem related to office work？
听力原文： Faces, like fingerprints, are unique. Did you ever wonder how it is possible for us to recognize people？ Even a skilled writer probably could not describe all the features that make one face different from another. Yet a very young child or even an animal, such as a pigeon can learn to recognize faces. We all take this ability for granted.
We also tell people apart by how they behave. When we talk about someone's personality, we mere the ways in which he or she acts, speaks, thinks and feels that make that individual different from others.
Like the hums face, human personality is very complex. But describing someone's personality in words is somewhat easier than describing his face. If you were asked to describe what a "nice face" looked like, you probably would have a difficult time doing so. But if you were ked to describe a "nice person," you might begin to think about someone who was kind considerate, friendly, ware-hearted, and so on.
There are many words to describe how a person thinks, feels and acts, An American psychologist found nearly 18,000 English words characterizing differences in people's behavior. And many of us use this information as a basis for describing, or typing his personality. Bookworms, conservatives, military types: people are described with such terns.
People have always tried to "type" each other. Actors in early Greek drama wore masks to show the audience whether they played the villains' or the heroes' role. In fact, the words "person" and "personality" come from the Latin persona, meaning "mask". Today, most television and movie actors do not wear masks. But we can easily from the "good guys" from the "bad guys" because the two types differ in appearance as well as in actions,
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