单选题{{B}}Part Ⅳ Cloze{{/B}}{{B}}{{I}}Directions{{/B}}: The following are a list of 15 words and phrases and a passage with 15 blanks. Read the passage carefully and choose one word or phrase from the list for each of the blanks in the passage. Chang the form of the words and phrases if necessary. Write your answers on the {{B}}ANSWER SHEET{{/B}}.{{/I}} Inflation is a period of rapid rises in prices. When your money buys fewer goods so that you get {{U}}(61) {{/U}} for the same amount of money as before, inflation is the problem. Sometimes people describe inflation as a time when "a dollar is not {{U}}(62) {{/U}} a dollar anymore". Inflation is a problem for all consumers, especially people who live on a fixed income. Retired people, for instance, cannot {{U}}(63) {{/U}} on an increase in income as prices rise. They face serious problems in stretching their incomes to {{U}}(64) {{/U}} their needs in time of inflation. Many retired people must cut their spending to {{U}}(65) {{/U}} rising prices. In many cases they must stop {{U}}(66) {{/U}} some necessary items, such as food and clothing. Even {{U}}(67) {{/U}} working people whose incomes are going up, inflation can also be a problem. The {{U}}(68) {{/U}} of living goes up, and they must have even more money to maintain their standard of living. When incomes do not keep {{U}}(69) {{/U}} with rising prices, living standard goes down. People may be earning the same amount of money, but they are not living {{U}}(70) {{/U}} because they are not able to buy as many goods and services. Government units gather information about prices in our economy and publish it as price indexes from {{U}}(71) {{/U}} the rate of price change can be determined. A price index measures changes in prices using the price for a {{U}}(72) {{/U}} year as the base. The base price is set {{U}}(73) {{/U}} 100, and the other prices are reported as a {{U}}(74) {{/U}} of the base price. A price index makes {{U}}(75) {{/U}} possible to compare current price with that in previous years. percentage cost given as well count buying at less worth to keep up with pace which it meet

单选题 The events of Sept. 11 have ratcheted up security at American airports to the highest level ever, according to a spokesman for Transportation Secretary Norman Mineta. But to say there is plenty of room for improvement puts it mildly. Hundreds of employees with access to high-security areas at 15 U. S. airports have been arrested or indicted by federal law enforcement officials for using phony Social Security numbers, lying about criminal convictions0r being in the United States illegally. None of those arrested had terrorist links, but some aviation experts said the workers were in a position to help smuggle weapons or bombs aboard aircraft if they had wanted. Tests ordered by President Bush and conducted by federal agents at 32 airports between November and February, when airports were on highest alert, showed that security screeners failed to detect knives 70% of the time, guns 30% of the time and simulated explosives 60% of the time. Two members of the House Transportation Committee are pushing to reverse the administration's opposition to arming pilots because groups representing pilots are insisting that their members need to be armed as a last line of defense. Attorney General John Ashcroft said the arrests of hundreds of airport employees showed that the system of background checks--done piecemeal by airlines, private contractors and others--needs tightening. That much is painfully obvious. What isn't clear is why the system was so porous (有漏洞的) to begin with and why it wasn't immediately tightened after that infamous Tuesday in September. Some people in the industry wisely have suggested that all airport workers be required to pass through the same metal detectors and other security checks as flight crews do, Congress has ordered the new Transportation Security Administration to find ways to enact just such a requirement. Unfortunately, no deadline has been set, in part because federal officials are preoccupied with getting thousands of new baggage screeners in place by Nov. 19--when the feds take over airport security--and installing bomb-detection equipment in all airports by the end of the year. Plainly, those two goals are critical. But it would be a mistake to give low priority to fixing other gaping holes in the nation's airport security net. If the federal crackdown is going to be effective, it needs to be comprehensive.

单选题Networks use microwave radio to link the computers when ______. A．they are close together B．they are far away from each other C．coaxial cables are used D．fiber optical is used

单选题We all______the achievement he has made in his experiment.

单选题Green plants take in carbon dioxide and give off oxygen in a food-making process called photosynthesis.

单选题{{B}}Text 4{{/B}} A friend of mine had a grandfather who supervised the payroll at a large company long ago. People who knew him say this man was a paragon of virtue when it came to making sure the employees were treated fair and square on every payday. But he also believed that once wages were disbursed, workers should take full responsibility for their financial security. In his view, honest labor and thrifty habits were basic elements of the free-enterprise system. Nobody should expect any money unless they earned it. He opposed company pension plans, and was thoroughly dismayed by the fiscal structure and benefits of Social Security. I wonder how many people hold the same views now. The debate about changing Social Security is part of a larger question: What obligation, if any, do Americans feel toward fellow citizens who need help? Note, I didn't say "less fortunate," "disadvantaged," or some other term that might be construed as evidence I'm promoting my own brand of social engineering. I just want to know how much concern people have for what happens outside their own households. Critics of government assistance programs often say they do more harm than good by creating a cycle of dependency for recipients and a gigantic bureaucracy that demoralizes the rest of society by taking money away from us and creating a welfare state of slackers. The term I prefer to describe our current situation is "safety-net culture." It has lots of problems, but I also know what life was like before safety nets, because my dad gave me abundant testimony from his 1920s boyhood near San Francisco—it was no Norman Rockwell painting. His father worked for the Southern Pacific Railroad Company, so they did have a house. But one neighbor lived in a tent on a vacant lot and another was known for owning only one pair of overalls, which his wife laundered in a tub on the stove on Saturdays while he sat by, wrapped in a blanket. My dad's family often ate boiled rice for breakfast. The beverage of choice was tea, but if that ran out they made "silver tea"— hot water with milk and sugar. Money for college wasn't in the family budget. My dad got his degree thanks to the GI Bill. Decades of safety-net culture have removed a lot of anxiety from our lives but we're still not dose to Utopia. Amid all the Social Security debate about aging baby boomers and shrinking worker contributions, I'm most compelled by this statistic: Close to 20 percent of retirees get all of their income from Social Security. Should that number be a source of national pride or embarrassment? Or perhaps a better question: How do you honestly feel about drinking silver tea during your golden years?

单选题 Today cognitive theorists empirically study the impact of feelings on cognitive processes such as memory and judgment and also the reciprocal influence of cognition on emotion. However, evolutionary theorists view emotion as a powerful source of motivation—an internal communication that something must be done. For example, when people are threatened, they fed fear, which in turn leads them to deal with the threatening situation through either fight or flight. Emotions and drives may also operate in tandem to motivate action, as when excitement accompanies sexual arousal. From an evolutionary perspective, different emotions serve different functions. Fear facilitates flight in the face of danger; disgust prevents ingestion me potentially toxic substances such as rotting meat. An emotion that is less well understood is jealousy. Why do people become jealous in intimate sexual relationships? One series of studies tested evolutionary hypotheses about differences in the concerns men and women have about their partners' fidelity. Since females can have only a limited number of children during their lifetimes, to maximize their reproductive success they should be motivated to form relationships with males who have resources and will contribute them to their offspring. Indeed, cross-cultural evidence demonstrates that one of the main mate selection criteria used by females around the world is male resources. From a female's point of view, then, infidelity accompanied by, emotional commitment to the other woman is a major threat to resources. A man unlikely to divert resources from his mate and her offspring to a casualling, but the risk increases dramatically if he becomes emotionally involved and perhaps considers switching long-term partners. Hence, a woman's jealousy would be expected to focus on her mate's emotional commitment to another female. For males, the situation is different. If a male commits himself to an exclusive relationship with a female, he must be certain that the offspring in whom he is investing are his own. Since he cannot be sure of paternity, the best he can do is to prevent his mate from copulating with any other males. In males, then, jealousy would be expected to focus less on the female's emotional commitment or resources and more on her tendency to give other males sexual access. Indeed, in species 'ranging from insects to humans, males take extreme measures to prevent other males from inseminating their mates. In humans, male sexual jealousy is the leading cause of homicides and of spouse battering cross - culturally.

单选题The pressure on her from her family caused her to {{U}}resort to{{/U}} the drastic measures.

单选题All these reference books are ______ to me by my supervisor.

单选题"Aesthetic surgery" is mentioned to show that

单选题The title of the biography The American Civil War Fighting for the Lady could hardly be more provocative. Thomas Keneally, an Australian writer, is unapologetic. In labeling a hero of the American civil war a notorious scoundrel he switches the spotlight from the brave actions of Dan Sickles at the battle of Gettysburg to his earlier premeditated murder, of the lover of his young and pretty Italian-American wife, Teresa. It is not the murder itself that disgusts Mr Keneally but Sickles's treatment of his wife afterwards, and how his behavior mirrored the hypocritical misogyny of 19th-century America. The murder victim, Philip Barton Key, Teresa Sickles's lover, came from a famous old southern family. He was the nephew of the then chief justice of the American Supreme Court and the son of the writer of the country's national anthem. Sickles, a Tammany Hall politician in New York turned Democratic congressman in Washington, shot Key dead in 1859 at a corner of Lafayette Square, within shouting distance of the White House. But the murder trial was melodramatic, even by the standards of the day. With the help of eight lawyers, Sickles was found not guilty after using the novel plea of "temporary insanity". The country at large was just as forgiving, viewing Key's murder as a gallant crime of passion. Within three years, Sickles was a general on the Unionist side in the American civil' War and, as a new friend of Abraham and Mary Lincoln, a frequent sleepover guest at the White House. Mrs Sickles was less fortunate. She was shunned by friends she had made as the wife of a rising politician. Her husband, a serial adulterer whose many mistresses included; Queen Isabella II of Spain and the madamof an industrialized New York whorehouse, refused to be seen in her company. Laura, the Sickles's daughter, was an innocent victim of her father's vindictiveness and eventually died of drink in the Bowery district of New York. Sickles's bold actions at Gettysburg are, in their own way, just as controversial. Argument continues to rage among scholars, as to whether he helped the Union to victory or nearly caused its defeat when he moved his forces out of line to occupy what he thought was better ground. James Longstreet, the Confederate general who led the attack against the new position, was in no doubt about the brilliance of the move. Mr Keneally is better known as a novelist. Here he shows himself just as adept at biography, and achieves both his main aims. He restores the reputation of Teresa Sickles, "this beautiful, pleasant and intelligent girl", and breathes full and controversial life into a famous military engagement.

单选题The bird flu virus is mutating and becoming more dangerous to mammals, according to researchers. The discovery reinforces fears that a human pandemic of the disease could yet occur. Avian flu hit the headlines in 1997 when a strain called H5N1 jumped from chickens to people, killing 6 people in Hong Kong. Within 3 days, the country"s entire chicken population was slaughtered and the outbreak was controlled. Since then new strains of virus have emerged, killing a further 14 people. As yet, no strain has been able to jump routinely from person to person. But if a more virulent strain evolves, the fear is that it could trigger widespread outbreaks, potentially affecting millions of people. Now, genetic and animal studies show that the virus is becoming more menacing to mammals. Immediate action is needed to stem the virus"s transmission, says Hualan Chen from Harbin Veterinary Research Institute, China, who was involved in the research. Chen and colleagues studied 21 H5N1 flu virus samples taken from apparently healthy ducks, which act as a natural reservoir for the disease, in southern China between 1999 and 2002. The researchers inoculated groups of chickens, mice and ducks with virus samples taken from different years and waited to see which animals became ill. Their results are presented this week in the Proceedings of the National Academy of Sciences . As expected, ducks were immune to the virus"s effects and the chickens fell sick. However, the mice also became ill, losing weight and the use of their limbs. Crucially, the severity of their illness was linked with the year from which the virus sample was taken. Viruses isolated in 2001 and 2002 made the animals more ill than those isolated earlier on. The findings hint that some time around 2001, the virus became adept at infecting mammals. Genetic analysis of the same samples reveals that the virus"s DNA changed over that time, suggesting that accumulated mutations may have contributed to the increased virulence. Researchers are concerned that a virus that has acquired the ability to infect mice could also infect humans. "The disease could resurge at any time," warns virologist Marion Koopmans from the National Institute of Public Health and the Environment in Bilthoven, the Netherlands. The findings highlight the need for improved surveillance to ensure that any future outbreaks are curtailed, she says. Although domestic poultry are easily culled, wild animals are more difficult to contain. "It is impossible to eradicate the natural reservoir," says Koopmans, "so we need to learn to live with it." Birds may not be the only villains in this story, however. Chen believes that pigs may also play a part. In Asia, chickens and pigs are often kept in close proximity, so the virus may have shuffled back and forth between the 2 species, picking up mutations and becoming better at infecting mammalian hosts. Humans may then have caught the disease from swine.

单选题The price of facial tissues goes down when ______.

单选题They carved their names on the buildings of the new campus ______ future generation should know who have been to this college. A．in order to B．lest C．in order that D．now that

单选题 Each year, millions of people in Bangladesh drink ground water that has been polluted by naturally high levels of arsenic poison. Finding safe drinking water in that country can be a problem. However, International Development Enterprises has a low-cost answer. This nongovernmental organization has developed technology to harvest rainwater. People around the world have been harvesting rainwater for centuries. It is a safe, dependable source of drinking water. Unlike ground water, rainwater contains no minerals or salts and is free of chemical treatments. Best of all, it is free. The rainwater harvesting system created by International Development Enterprises uses pipes to collect water from the tops of buildings. The pipes stretch from the buildings to a two-meter tall storage tank made of metal. At the top of the tank is a so-called "first-flush" device made of wire screen. This barrier prevents dirt and leaves in the water from falling inside the tank. A fitted cover sits over the "first-flush" device. It protects the water inside the tank from evaporating. The cover also prevents mosquito insects from laying eggs in the water. Inside the tank is a low cost plastic bag that collects the water. The bag sits inside another plastic bag similar to those used to hold grains. The two bags are supported inside the metal tank. All total, the water storage system can hold up to three-thousand-five-hundred liters of water. International Development Enterprises says the inner bags may need to be replaced every two to three years. However, if the bags are not damaged by sunlight, they could last even longer. International Development Enterprises says the water harvesting system should be built on a raised structure to prevent insects from eating into it at the bottom. The total cost to build this rainwater harvesting system is about forty dollars. However, International Development Enterprises expects the price to drop over time. The group says one tank can provide a family of five with enough rainwater to survive a five-month dry season.

单选题Our mutual understanding and cooperation will certainly result ______ important business. A．in B．on C．of D．from