单选题In recent years many countries of the world have been faced with the problem of how to make their workers more productive. Some experts claim the answer is to make jobs more varied. But do more varied jobs lead to greater productivity? There is evidence to suggest that while variety certainly makes the workers" life more enjoyable, it does not actually make them work harder. As far as increasing productivity is concerned, then variety is not an important factor. Other experts feel that giving the workers freedom to do their jobs in their own way is important and there is no doubt that this is true. The problem is that this kind of freedom cannot easily be given in the modern factory with its complicated machinery which must be used in a fixed way. Thus while freedom of choice may be important, there is usually very little that can be production lines rather than one large one, so that each worker contributes more to the production of the cars on his line. It would seem that not only is degree of worker contribution an important factor, but it is also one we can do something about. To what extent does more money lead to greater productivity? The workers themselves certainly think this important. But perhaps they want more only because the work they do is so boring. Money just lets them enjoy their spare time more. A similar argument may explain demands for shorter working hours. Perhaps if we succeed in making their jobs more interesting, they will neither want more, nor will shorter working hours be so important to them.

单选题Due to his recent failure to meet the deadline, Jason is ______ from the list for promotion.

单选题The flowers in the vase _______ because they had no water.

单选题Do you remember all those years when scientists argued that smoking would kill us but the doubters insisted that we didn"t know for sure? That the evidence was inconclusive, the science uncertain?That the antismoking lobby was out to destroy our way of life and the government should stay out of the way?Lots of Americans bought that nonsense, and over three decades, some 10 million smokers went to early graves. There are upsetting parallels today, as scientists in one wave affer another try to awaken us to the growing threat of global warming. The latest was a panel from the National Academy of Sciences, enlisted by the White House, to tell us that the Earth"s atmosphere is definitely warming and that the problem is largely man-made. The clear message is that we should get moving to protect ourselves. The president of the National Academy, Bruce Alberts，added this key point in the preface to the panel"s report: "Science never has all the answer. But science does provide us with the best available guide to the future, and it is critical that our nation and the world base important policies on the best judgments that science can provide concerning the future consequences of present actions." Just as on smoking, voice now come from many quarters insisting that the science about global warming is incomplete; that it"s OK to keep pouring fumes into the air until we know for sure. This is a dangerous game: by the time 100 percent of the evidence is in, it may be too late. With the risks obvious and growing, a prudent people would take out an insurance policy now. Fortunately, the White House is starting to pay attention. But it"s obvious that a majority of the president"s advisers still don"t take global warming seriously. They continue to press for more research, a classic of "paralysis by analysis". To serve as responsible stewards of the planet, we must press forward on deeper atmospheric and oceanic research. But research alone is inadequate. If the Administration won"t take the legislative initiative, Congress should help to begin fashioning conservation measures. A bill by Democratic Senator Robert Byrd of West Virginia, which would offer financial incentives for private industry, is a promising start. Many see that the country is getting ready to build lots of new power plants to meet our energy needs. If we are ever going to protect the atmosphere, it is crucial that those new plants be environmentally sound.

单选题The teacher ______from her custom and gave us no homework yesterday.

单选题Thousands of children nowadays prefer doing their homework to a background of pop-music ______ it in a quite room.

单选题Japanese workers still put in an impressive 42 hours each week but they are ______ by the South Koreans and Singaporeans who spend an average 46 hours at the grindstone. A. outdone B. outweighed C. outrun D. outrivaled

单选题Laura, who comes from a wealthy family, spends most of her time enjoying herself, but takes ______ pains with her lessons.

单选题"Our life is ______ away by detail. Simplify, simplify. " That dictum of Henry David Thoreau's, echoing from the days of steamboats and ox-drawn plows, had long haunted me.

单选题The police are trying to get back the stolen statue.

单选题Many people in Wales have an Uaffinity/U with music.

单选题The Federal Communications Commission made an effort to prevent a single giant company from ______. competition in the market.

单选题I don"t understand why people ______ such a beautiful garden with cans and bottles.

单选题The television station is supported by ____ from foundations and other sources.

单选题Surveys show that ______ less sleep than we think, ______ too much sleep could even harm our health.

单选题Shy people never ______ set out to attract attention of other people.

单选题Small business owners must accept the burdens of entrepreneurship. Being in business for your- self requires your full attention. You seldom leave the office or shop at 5 p.m. (31) do you leave job problems there. They follow you home as business homework. This (32) less time for your personal life. The (33) you sought can put you on the spot. You don' t report to a boss. But you do (34) as hard as possible to serve your customers. They are you" (35) ". You also have to compete with creditors, employees, suppliers, and tax collectors. In other words, you are never really (36) . Small firms can seldom 'afford to (37) enough employees so that each can specialize. You may have to prepare ads, (38) records, make sales calls, and collect bad debts. You must be able to "wear many hats". (39) all these tasks takes up lots of time. But you cannot (40) long-range planning. You have to set goals and develop plans in meet them. Given too (41) time to management, your business will fall. The major cause of business (42) is poor management. Of every three business that start, two fail. (43) half fall in the first five years. A person with limited talents may be able to hold a job in a large firm (44) others will pick up the slack. When you are in business (45) yourself, there is no one to "carry you". Even if your firm (46) , you may still have little money to spend. You may work hard for months and not take a penny out (47) the salary you pay yourself. The reason is you may have to (48) your profits in the firm for long-term growth. Or you may need to meet short-term (49) for cash. You may not even be able to draw a salary (50) the firm becomes a truly going concern.

单选题The village ______ my grandfather grew up in is not far from the town.