单选题{{B}}Directions:{{/B}} Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. Advances in computers and data networks inspire visions of a future "information economy" in which everyone will have {{U}}(1) {{/U}} to gigabytes of all kinds of information anywhere and anytime. {{U}}(2) {{/U}} information has always been a {{U}}(3) {{/U}} difficult commodity to deal with, and, in some ways, computers and high-speed networks make the problems of buying, {{U}}(4) {{/U}} , and distributing information goods worse {{U}}(5) {{/U}} better. The evolution of the Internet itself {{U}}(6) {{/U}}serious problems. {{U}}(7) {{/U}} the Internet has been privatized, several companies are {{U}}(8) {{/U}} to provide the backbones that will carry traffic {{U}}(9) {{/U}} local networks, but {{U}}(10) {{/U}} business models for interconnection—who pays how much for each packet {{U}}(11) {{/U}} , for example—have {{U}}(12) {{/U}} to be developed. {{U}}(13) {{/U}} interconnection standards are developed that make {{U}}(14) {{/U}} cheap and easy to transmit information across independent networks, competition will {{U}}(15) {{/U}} . If technical or economic {{U}}(16) {{/U}} make interconnection difficult, {{U}}(17) {{/U}} transmitting data across multiple networks is expensive or too slow, the {{U}}(18) {{/U}} suppliers can offer a significant performance {{U}}(19) {{/U}} ; they may be able to use this edge to drive out competitors and {{U}}(20) {{/U}} the market.

单选题The new students in Class One intended to visit Mr. Tai ______ the weather got worse. A. lest B. unless C. providing D. until

单选题In our country, the educational purpose is ______.

单选题According to the passage, the total supply of food in America every year reaches ______.

单选题{{B}}16-20{{/B}} The development of rapid transit rail lines in cities should parallel local economic development and blind construction of such lines should be avoided, a State Council conference said yesterday. The meeting, chaired by Premier Wen Jiabao, said the building of rapid-transit rail lines in cities should be carried out according to strict guidelines and management systems of such lines should be improved. It stressed that the amount of domestically made equipment used in such infrastructure projects needs to be increased. The meeting also deliberated on the draft amendments for laws governing the People's Bank of China and commercial banks. Also discussed were the draft law on the supervision and management of banking sector and draft regulations on the management of central food reserves. It was agreed at the meeting that the laws governing the People's Bank of China and commercial banks need to be amended so that the roles and responsibilities of the two are made clear.

单选题She studied hard at school when she was young, ______contributed to her success in later life.

单选题Charlie's Chainsaw Company has reason to believe that one of its models of saw is defective. A recall of all of the saws would cost more than $5 million, and would probably result in a loss in market share over the next quarter because of bad publicity. Still, a recall is the right economic decision. Which of the following, if true, most supports the conclusion above? A. Defective chainsaws can seriously injure or even kill the people who use them. B. Charlie's chief rival has recalled two of its products within the past year. C. Product recalls often result in a perception by customers that a given product is permanently defective, even after the defect has been remedied. D. The stocks of publicly traded companies that announce product recalls often drop upon the announcement, but they generally return to the pre-announcement level within 12 months. E. Three years ago a rival company went out of business because of large punitive damages awarded to a plaintiff who had been injured by a defective chainsaw.

单选题We are using up our natural resources too quickly and at the same time we are ______ our environment with dangerous chemicals. A. protecting B. saving C. polluting D. fighting

单选题"I don't feel like studying now." But the faster we get the assignment ______ , the sooner we can go out and relax.

单选题With all this noise _______ on, I cannot hear what is being said.

单选题 Lots of creatures already reproduce without sex. Since the birth of Louise Brown, the first test-tube baby, in 1978, {{U}}(1) {{/U}} of human beings {{U}}(2) {{/U}} in laboratory glassware rather than in bed. If human cloning becomes possible—and since the birth of a sheep called Dolly, {{U}}(3) {{/U}} doubt that it will be feasible to clone a person by 2025—even the link between sex organs and reproduction {{U}}(4) {{/U}}. You will then be able to take a cutting from your body and grow a new person, {{U}}(5) {{/U}} you were a willow tree. {{U}} (6) {{/U}}, we have already divorced sex from reproduction. In the 1960s, the contraceptive pill freed women to enjoy sex for its own sake. {{U}}(7) {{/U}}, greater tolerance of homosexuality signaled society's acceptance of nonreproductive sex of another sort. These changes are only continuations of a {{U}}(8) {{/U}} that started perhaps a million years ago. Human beings {{U}}(9) {{/U}} the interest in infertile, social sex with a few other species: dolphins, apes and some birds. But {{U}}(10) {{/U}} sex is too good for human beings to {{U}}(11) {{/U}}, more and more people will abandon it as a {{U}}(12) {{/U}} of reproduction. In the modern world, you can {{U}}(13) {{/U}} have sex and parenthood without suffering the bit {{U}}(14) {{/U}}. Some Hollywood actresses {{U}}(15) {{/U}} the urge for mothering by electing to adopt children {{U}}(16) {{/U}} spoil their figures (as they see it) by childbearing. For people as beautiful as this, the temptation to {{U}}(17) {{/U}} a clone (reared in a surrogate womb) could one day be {{U}}(18) {{/U}}. However, human cloning and designer babies are probably not {{U}}(19) {{/U}}. Even assuming that the procedures are judged safe and efficient in farm animals, still a long way off, they will be heavily {{U}}(20) {{/U}}, if not banned, by many governments for human beings.

单选题Man: The competition is increasingly fierce. What shall we do next?Woman: If other companies lower their prices, we’ll have to follow suit.Question: What does the woman suggest? A．Doing the same as other companies have done B．Producing the same suits as other companies. C．Fighting against other by cutting down the cost. D．Working out other policies to compensate foe the loss.

单选题It was during the morning rush hour ______the bomb exploded. A. that B. when C. while D. before

单选题The Greek's lofty attitude toward scientific research—and the scientists' contempt of utility—was a long time dying. For a millennium after Archimedes, this separation of mechanics from geometry inhibited fundamental technological progress and in some areas repressed it altogether. But there was a still greater obstacle to change until the very end of the middle ages: the organization of society. The social system of fixed class relationships that prevailed through the Middle Ages(and in some areas much longer)itself hampered improvement. Under this system, the laboring masses, in exchange for the bare necessities of life, did all the productive work, while the privileged few—priests, nobles, and kings—concerned themselves only with ownership and maintenance of their own position. In the interest of their privileges they did achieve considerable progress in defense, in warmaking, in government, in trade, in the arts of leisure, and in the extraction of labor from their dependents, but they had no familiarity with the process of production. On the other hand, the laborers, who were familiar with manufacturing techniques, had no incentive to improve or increase production to the advantage of their masters. Thus, with one class possessing the requisite knowledge and experience, but lacking incentive and leisure, and the other class lacking the knowledge and experience, there was no means by which technical progress could be achieved. The whole ancient world was built upon this relationship—a relationship as sterile as it was inhuman. The availability of slaves nullified the need for more efficient machinery. In many of the commonplace fields of human endeavor, actual stagnation prevailed for thousands of years. Not all the glory that was Greece and the grandeur that was Rome could develop the windmill or contrive so simple an instrument as the wheelbarrow—products of the tenth and thirteenth centuries respectively. For about twenty-five centuries, two-thirds of the power of the horse was lost because he wasn't shod, and much of the strength of the ox was wasted because his harness wasn't modified to fit his shoulders. For more than five thousand years, sailors were confined to rivers and coasts by a primitive steering mechanism which required remarkably little alteration(in the thirteenth century)to become a rudder. With any ingenuity at all, the ancient plough could have been put on wheels and the ploughshare shaped to bite and turn the sod instead of merely scratching it—but the ingenuity wasn't forthcoming. And the villager of the Middle Ages, like the men who first had fire, had a smoke hole in the center of the straw and reed thatched roof of his one-room dwelling(which he shared with his animals), while the medieval charcoal burner(like his Stone Age ancestor)made himself a hut of small branches.

单选题The high school my daughter studies in is______our university.

单选题The passage implies that there are many senses we ______.

单选题A: Bob, would you mind turning down the TV a little? I'm talking on the phone, and I'm having a hard time hearing. B: ______

单选题______that I wasn't going to get much chance for promotion, I decided to quit the job.

单选题Ray: ______. Where was I? Brenda: You were talking about your trip to South Africa. A. Let's back up. B. What did I hear? C. Let's check in. D. What were you talking about?

单选题He was charged by the police ______ breaking the law.