单选题He ______ his father's office several times this morning, but each time the line was engaged.

单选题An important factor of leadership is attraction. This does not mean attractiveness in the ordinary sense, for that is a born quality (1) our control. The leader has, nevertheless, to be a magnet; a central figure towards whom people are (2) . Magnetism in that sense depends, first of all, (3) being seen. There is a type of authority which can be (4) from behind closed doors, but that is not leadership. (5) there is movement and action, the true leader is in the forefront and may seem, indeed, to be everywhere at once. He has to become a legend; the (6) for anecdotes, whether true or (7) . One of the simplest devices is to be absent (8) the occasion when the leader might be (9) to be there, enough in itself to start a rumor about the vital business (10) has detained him. To (11) up for this. he can appeal when least expected, giving rise to another story about the interest he can display (12) things which other folks might (13) as trivial. With this gift for (14) curiosity the leader always combines a reluctance to talk about himself. His interest is (15) in other people; he questions them and encourages them to talk and then remembers all (16) is relevant. He never leaves a party (17) he has mentally formed a minimum dossier(档案)on (18) present, ensuring that he knows (19) to say when he meets them again. He is not artificially extrovert but he would usually rather listen (20) talk. Others realize gradually that his importance needs no proof.

单选题Sally Kemmerer has, so far, escaped Northern California's rolling blackouts. But up on the roof for her Oakland home, workers are tapping into, perhaps, the most reliable power source, the sun. It could mean no more worries about blackouts or power rates. Sally Kemmerer, a homeowner, says, "I hope that we'll be able to zero out, you know, our electric bill. I mean that's definitely our goal." Turning the sun's rays into electricity is, of course, nothing new. But California's power crisis has cast a new light on the technology. Gary Gerber, a solar power contractor, says, "I might have been getting three phone calls a week a couple of months ago. I'm getting six a day now, it's completely crazy." Alternative energy is even more attractive, thanks to a state rebate program. So far this month, California's energy commission has received 200 project applications. That is more than the number of applications all last year. Putting in a solar roof is still a relatively expensive proposition. This project cost around 45,000 dollars. Even taking into account the state subsidy of 12,000 dollars, that leaves a net cost to the homeowner of around 33,000 dollars. Sally says, "We were happy to find out that, eventually, the system should pay for itself, you know 20-years, maybe." Aaron Wellendorf has had a p-v (or photovoltaic generator) for more than a year. Like most solar systems, his is not off the grid completely and the utility still kicks in at night, or when there's no sun. But when there is bright light, things change. Wellendorf says, "I'm turning my meter backward with extra power that I'm generating." Backward? That's right! Wellendorf's meter tracks how much power goes back into the utility grid. Last year all he paid for electricity was a service charge. That charge was around five dollars a month. In fact, even after powering his super-efficient household appliances and his converted electric track, Wellendorf generated a net surplus of more than 2,000-kilowatt hours. Unfortunately, state law doesn't require the utility to pay him for that. Wellendorf says, "I don't get it in money, I just get the satisfaction of helping out the power grid." And, he gets the satisfaction of being energy self-sufficient.

单选题Beth: You look a little pale. Are you OK? Jerry: ______, I feel terrible. A. To speak out B. To begin with C. To sum up D. To tell you the truth

单选题How many members are involved in the band?

单选题As Commander-in-Chief of the armed forces, I have directed that all measures______ for our defense.

单选题Customer: ______ Salesperson: I"m awfully sorry. I"ll change it right away.

单选题Sir Denis, who is 78, has made it known that much of his collection ______ to the nation. A. leaves B. has left C. is to leave D. is to be left

单选题 Wholesale prices in July rose more sharply than expected and at a faster rate than consumer prices, {{U}}(1) {{/U}} that businesses were still protecting consumers {{U}}(2) {{/U}} the full brunt(冲击) of higher energy costs. The Producer Price Index, {{U}}(3) {{/U}} measures what producers receive for goods and services, {{U}}(4) {{/U}} 1 percent in July, the Labor Department reported yesterday, double {{U}}(5) {{/U}} economists had been expecting and a sharp turnaround from flat prices in June. Excluding {{U}}(6) {{/U}} and energy, the core index of producer prices rose 0.4 percent, {{U}}(7) {{/U}} than the 0.1 percent that economists had {{U}}(8) {{/U}} . Much of that increase was a result of an {{U}}(9) {{/U}} increase in car and truck prices. On Tuesday, the Labor Department said the {{U}}(10) {{/U}} that consumers paid for goods and services in July were {{U}}(11) {{/U}} 0.5 percent over all, and up 0.1 percent, excluding food and energy. {{U}} 12 {{/U}} the overall rise in both consumer and producer prices {{U}}(13) {{/U}} caused by energy costs, which increased 4.4 percent in the month. (Wholesale food prices {{U}}(14) {{/U}} 0.3 percent in July.) {{U}}(15) {{/U}} July 2004, wholesale prices were up 4.6 percent; the core rate {{U}}(16) {{/U}} 2.8 percent, its fastest pace since 1995. Typically, increases in the Producer Price Index indicate similar changes in the consumer index {{U}}(17) {{/U}} businesses recoup(补偿) higher costs from customers. {{U}}(18) {{/U}} for much of this expansion, which started {{U}}(19) {{/U}} the end of 2001, that has not been the {{U}}(20) {{/U}} In fact, many businesses like automakers have been aggressively discounting their products.

单选题 So long as teachers fail to distinguish between teaching and learning, they will continue to undertake to do for children that which only children can do for themselves. Teaching children to read is not passing reading on to them. It is certainly not endless hours spent in activities about reading. Douglas insists that "reading cannot be taught directly and schools should stop trying to do the impossible. " Teaching and learning are two entirely different processes. They differ in kind and function. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to read. Teaching is also a public activity: It can be seen and observed. Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private, for learning is an occupation of the mind, and that process is not open to public scrutiny. If teacher and learner roles are not interchangeable, what then can be done through teaching that will aid the child in the quest (探索) for knowledge? Smith has one principal rule for all teaching instructions. "Make learning to read easy, which means making reading a meaningful, enjoyable and frequent experience for Children. " When the roles of teacher and learner are seen for what they are, and when both teacher and learner fulfill them appropriately, then much of the pressure and feeling of failure for both is eliminated. Learning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of learning to read by reading.

单选题______ my return, I learned that Professor Smith had been at the Museum and would not be back for several hours. A. At B. With C. On D. During

单选题As America's prison population has exploded, hard-pressed officials have relied on private prisons to house about 5 percent of the nation's 1.7 million prisoners. But a number of recent incidents have strengthened accusations that for-profit prisons do not always measure up on security and reliability. A judge ordered a Youngstown, Ohio, prison for criminals from Washington, D. C. to remove violent prisoners after 13 stabbings(刺伤案), two of them fatal. Colorado closed a center for teen lawbreakers after a suicide and evidence that prisoners had been abused. Tennessee legislators have now put on hold a plan to privatize most of that state's prison system. Last week, the American Federation of State, County and Municipal Employees issued a report charging that private prisons save taxpayers little money and are full of waste and deception (欺骗). The union accused some firms of persuading public officials for profitable contracts and then running substandard facilities. Nashville-based Corrections Corp of America, a privatization leader, insists it can cut costs and operate high-quality prisons. A spokeswoman blanked some problems at its Youngstown unit on errors by Washington, D.C. officials and said the new report reflects union fears of "change and a loss of power". A new test is shaping up in the capital: Congress has voted to put 2 000 more local prisoners in private prisons by mid-1999.

单选题The technology consultant will ______.

单选题Alice: Ted asked me to go to the beach this weekend. What's your plan?Laura: I've to work overtime, Sometimes I envy you a lot. Ted is a good guy.Alice: ______. You just haven't met the right person. And I think you work too much. You should learn how to entertain yourself and enjoy your life.

单选题There are a number of (reason) why population (is concentrated) in the regions, but the wide variety and (availability) of animal and vegetable life may be (the most important).A. reasonB. is concentratedC. availabilityD. the most important

单选题Why does the Foundation concentrate its support on basic rather than applied research?. Basic research is the very heart 9f science, and its cumulative(积累的) product is the capital of scientific progress, a capital that must be constantly increased as the demands upon it rise. The goal of basic research is understanding for its own sake. Understanding of the structure of the atom or the nerve cell, the causes of earthquakes and droughts, or of man as a behaving creature and of the social forces that .are created whenever two or more human beings come into contact with one another — the scope is staggering, but the commitment to truth is the same. If the commitment were to a particular result, conflicting evidence might be overlooked or, with the best will in the world, simply not appreciated. Moreover, the practical applications of basic research frequently cannot be anticipated. When 'Roentgen, the physicist, discovered X-ray, he had no idea of their usefulness to medicine. Applied research, undertaken to solve specific practical problems, has an immediate attractiveness because the results can be seen and enjoyed. For practical reasons, the sums spent on applied research in any country always far exceed those for basic research, and the proportions are more unequal in the less developed countries. Leaving aside the funds devoted to research by industry — which is naturally far more concerned with applied aspects because these increase profits quickly — the funds the U.S. Government allots(分配) to basic research currently mount to about 7 percent of its over-all research and development funds. Unless adequate safeguards are provided, applied research invariably tends to drive out basic. Then, as Dr. Waterman has point ed out, "Developments will inevitably be undertaken prematurely, career incentives will gravitate strongly toward applied science, and the opportunities for making major scientific discoveries will be lost. Unforunately, pressures to emphasize new developments, without corresponding emphasis upon pure science.., tend to degrade the quality of the nation's technology in the long run, rather than to improve it. /

单选题The extensive survey suggested that their assumptions ______ totally wrong. A. were B. be C. was D. would be

单选题In some countries, ______ is called "equality" does not really mean equal rights for all people. A. which B. what C. that D. one

单选题Rita: How about some more cake, dear? Alex: ______

单选题Mr. Smith has been away from home for a long time. He is looking forward to______ his wife. A. hear from B. hearing from C. hear of D. hearing of