VARI=0表示断屑加工。

VARI=1表示排屑加工。

Text 2
Well, no gain without pain, they say. But what about pain without gain.’ Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real.
The official statistics are mildly discouraging. They show that, .if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, productivity has in creased by about 2% a year, which are more than twice the 1978 - 1987 averages. The trouble is that part of the recent acceleration is due to the usual rebound that occurs at the point in a business cycle, and so is not conclusive evidence of a revival in the underlying trend. There is, as Robert Rubin, the treasury secretary, says, a "disjunction" between the mass of business anecdote that points to a leap in productivity and the picture reflected by the statistics.
Some of this can be easily explained. New ways of organizing the workplace all that reengineering and downsizing--are only one contribution to the overall productivity of an economy, Which is driven by many other factors such as joint investment in equipment and machinery, new technology, and investment in education and training. Moreover, most of the changes that companies make are intended to keep them profitable, and this need not always mean increasing productivity: switching to new markets or improving quality can matter just as much.
Two other explanations are more speculative. First, some of the business restructuring of recent years may have been ineptly done. Second, even if it wag well done, it may have spread much less widely than people suppose.
Leonard Schlesinger, a Harvard academic and former chief executive of Au Bong Pain, a rapidly growing chain of bakery cafes, says that much "reengineering" has been crude. In many cases, he believes, the loss of revenue has been greater than the reductions in cost. His colleague, Michael Beer, says that far too many companies have applied reengineering in a mechanistic fashion, chopping out costs without giving sufficient thought to long - term profitability. B. B. D. O’ s A1 Rosen shine is blunter. He dismisses a lot of the work of re engineering consultants as mere rubbish--" the worst sort of ambulance cashing."

Which of the following statements is NOT mentioned in the passage（）

A:Radical reforms are essential for the increase of productivity. B:New ways of organizing workplaces may help to increase productivity. C:The reduction of costs is not a sure way to gain long - term profitability. D:The consultants are a bunch of good for nothing.

Well, no gain without pain, they say. But what about pain without gain Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real. 　　The official statistics are mildly discouraging. They show that, if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, productivity has increased by about 2% a year, which is more than twice the 1978―1987 average. The trouble is that part of the recent acceleration is due to the usual rebound that occurs at this point in a business cycle, and so is not conclusive evidence of a revival in the underlying trend. There is, as Robert Rubin, the treasury secretary, says, a" disjunction" between the mass of business anecdote that points to leap in productivity and the picture reflected by the statistics. 　　Some of this can be easily explained. New ways of organizing the workplace―all that reengineering and downsizing―are only one contribution to the overall productivity of an economy, which is driven by many other factors such as joint investment in equipment and machinery, new technology, and investment in education and training. Moreover, most of the changes that companies make are intended to keep them profitable, and this need not always mean increasing productivity: switching to new markets or improving quality can matter just as much. 　　Two other explanations are more speculative. First, some of the business restructuring of recent years may have been ineptly done. Second, even if it was well done, it may have spread much less widely than people suppose. 　　Leonard Schlesinger, a Harvard academic and former chief executive of Au Bon Pain, a rapidly growing chain of bakery cafes, says that much" re-engineering" has been crude. In many cases, he believes, the loss of revenue has been greater than the reductions in cost. His colleague, Michael Beer, says that far too many companies have applied re-engineering in a mechanistic fashion, chopping out costs without giving sufficient thought to long-term profitability. BBDO’’s AI Rosenshine is blunter. He dismisses a lot of the work of re-engineering consultants as mere rubbish―" the worst sort of ambulance-chasing." Which of the following statements is NOT mentioned in the passage ____________.

A:Radical reforms are essential for the increase of productivity. B:New ways of organizing workplaces may help to increase productivity. C:The reduction of costs is not a sure way to gain long-term profitability. D:The consultants are a bunch of good-for-nothings.

In this way these insects show an efficient use of their (sound-produced) ability, (organizing) two sounds (delivered) at a high rate as one (call).

A:sound-produced B:organizing C:delivered D:call

Passage One
Skills are the activities that a person does well. What things are you good at doing Everyone has many skills. Sometimes it is difficult to recognize the skills that you have.
Job skills are abilities you need for a specific job. For example, a chef needs to know how to cook and bake. A taxi driver needs to know how to drive a car and read signs. A secretary needs to know how to type and take messages.
Transferable skills are skills you can use in many different jobs. You can take skills from one job and use them in a very different job. Speaking English well, for instance, is a skill you can use in almost any job. Some examples of transferable skills are teaching other people, solving problems, accepting responsibility, organizing projects, making decisions, and creating new ideas. Employers want to select employees who have or who can learn the skills necessary to do the job.

An example of a job skill is （）

A:cooking pizza B:working well with people C:accepting responsibility D:organizing projects

In order to host the Olympics, a city must submit a proposal to the IOC. After all proposals have been submitted, the IOC votes. If no city is successful in gaining a majority in the first vote, the city with the fewest votes is eliminated, and voting continues, with successive rounds, until a majority winner is determined. Typically the Games are awarded several years in advance, allowing the winning city time to prepare for the Games. In selecting the site of the Olympic Games, the IOC considers a number of factors, chief among them which city has, or promises to build, the best facilities, and which organizing committee seems most likely to stage the Games effectively. The IOC also considers which parts of the world have not yet host ed the Games. For instance, Tokyo, the host of the 1964 Summer Games, and Mexico City, the host of the 1968 Summer Games, were chosen in part to popularize the Olympic movement in Asia and in Latin America. Because of the growing importance of television worldwide, the IOC in recent years has also taken in account the host city’s time zone. Whenever the Games take place in the United States or Canada, for example, American television networks are willing to pay significantly higher amounts for television rights because they can broadcast popular events live, in prime viewing hours. Once the Games have been awarded, it is the responsibility of the local organizing committee--not the IOC or the NOC of the host city’s country--to finance them. This is often done with a portion of the Olympic television revenues and with corporate sponsorships, ticket sales, and other smaller revenue sources, such as commemorative postage stamps or proceeds from a national lottery. In many cases there is also direct government support. Although many cities have achieved a financial profit by hosting the Games, the Olympics can be financially risky. When the proceeds from the Games were less than expected, the city was left with large debts.

According to the passage, once the host city is determined, the money will be raised mainly by （）

A:IOC B:NOC of the city's country C:the local government D:the local organizing committee

? ?Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slowly and laboriously. But chemical knowledge is as old as history, being almost entirely concerned with the practical arts of living. Cooking is essentially a chemical process; so is the melting of metals and the administration of drugs. This basic chemical knowledge, which was applied in most cases as a rule of thumb (单凭经验来做的方法), was nevertheless dependent on previous experiment. It also served to stimulate a fundamental curiosity about the processes themselves. New in formation was always being gained as artisans improved techniques to gain better results.
? ?The development of a scientific approach to chemistry was, however, hampered by several factors. The most serious problem was the vast range of material available and the consequent difficulty of organizing it into some system. In addition, there were social and intellectual difficulties. Chemistry is nothing if not practical; those who practice it must use their hands, they must have a certain practical flair (鉴别力). Yet in many ancient civilizations, practical tasks were primarily the province of a slave population. The thinker or philosopher stood apart from this world, where the practical arts appeared to lack any intellectual content of interest.
? ?The final problem for early chemical science was the element of secrecy. Experts in specific trades had developed their own techniques and guarded their knowledge to pre vent others from stealing their livelihood. Another factor that contributed to secrecy way the esoteric (深奥的) nature of the knowledge of alchemists (炼金术士). In one sense, the second of these was the more serious impediment (阻碍) because the records of the chemical processes that early alchemists had discovered were often written down in symbolic language understandable to very few or in symbols that were purposely obscure.

What is the passage mainly about?

A:The scientific revolution in the seventeenth century. B:Reasons that chemistry developed slowly as a science. C:The practical aspects of chemistry. D:Difficulties of organizing knowledge systematically.