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

A. more than
B. less than
C. than
D. rather than

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A study released a little over a week ago, which found that eldest children end up, on average, with slightly higher IQ"s than younger siblings, was a reminder that the fight for self-definition starts much earlier than freshman year. Families, whatever the relative intelligence of their members, often treat the firstborn as if he or she were the most academic, and the younger siblings fill in other niches: the wild one, the flirt. These imposed caricatures, in combination with the other labels that accumulate from the sandbox through adolescence, can seem over time like a miserable cat, entourage of identities that can be silenced only with hours of therapy. But there"s another way to see these alternate identities: as challenges that can sharpen psychological skills. In a country where reinvention is considered a birthright, many people seem to treat old identities the way Houdini treated padlocked boxes: something to wriggle free from, before being dragged down. And psychological research suggests that this ability can be a sign of mental resilience, of taking control of your own story rather than being trapped by it. The late-night bull sessions in college or at backyard barbecues are at some level like out-of-body experiences, allowing a re-coloring of past experience to connect with new acquaintances. A more obvious outlet to expand identity—and one that"s available to those who have not or cannot escape the family and community where they"re known and labeled—is the Internet. Admittedly, a lot of the role-playing on the Internet can have a deviant quality. But researchers have found that many people who play life-simulation games, for example, set up the kind of families they would like to have had, even script alternate versions of their own role in the family or in a peer group. Decades ago the psychologist Erik Erickson conceived of middle age as a stage of life defined by a tension between stagnation and generativity—a healthy sense of guiding and nourishing the next generation, of helping the community. Ina series of studies, the Northwestern psychologist Dan P. McAdams has found that adults in their 40s and 50s whose lives show this generous quality—who often volunteer, who have a sense of accomplishment—tell very similar stories about how they came to be who they are. Whether they grew up in rural poverty or with views of Central Park, they told their life stories as series of redemptive lessons. When they failed a grade, they found a wonderful tutor, and later made the honor roll; when fired from a good job, they were forced to start their own business. This similarity in narrative constructions most likely reflects some agency, a willful reshaping and re-imagining of the past that informs the present. These are people who, whether pegged as nerds or rebels or plodders, have taken control of the stories that form their identities. In conversation, people are often willing to hand out thumbnail descriptions of themselves: "I"m kind of a hermit". Or a talker, a practical joker, a striver, a snob, a morning person. But they are more likely to wince when someone else describes them so authoritatively. Maybe that"s because they have come too far, shaken off enough old labels already. Like escape artists with a lifetime"s experience slipping through chains, they don"t want or need any additional work. Because while most people can leave their family niches, schoolyard nicknames and high school reputations behind, they don"t ever entirely forget them. A recent study shows that

A. the firstborns and younger siblings are often treated differently.
B. higher IQ holders in a family are always the eldest.
C. the firstborns in a family often become more academic
D. the younger siblings are more likely to be ill-treated.

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A study released a little over a week ago, which found that eldest children end up, on average, with slightly higher IQ"s than younger siblings, was a reminder that the fight for self-definition starts much earlier than freshman year. Families, whatever the relative intelligence of their members, often treat the firstborn as if he or she were the most academic, and the younger siblings fill in other niches: the wild one, the flirt. These imposed caricatures, in combination with the other labels that accumulate from the sandbox through adolescence, can seem over time like a miserable cat, entourage of identities that can be silenced only with hours of therapy. But there"s another way to see these alternate identities: as challenges that can sharpen psychological skills. In a country where reinvention is considered a birthright, many people seem to treat old identities the way Houdini treated padlocked boxes: something to wriggle free from, before being dragged down. And psychological research suggests that this ability can be a sign of mental resilience, of taking control of your own story rather than being trapped by it. The late-night bull sessions in college or at backyard barbecues are at some level like out-of-body experiences, allowing a re-coloring of past experience to connect with new acquaintances. A more obvious outlet to expand identity—and one that"s available to those who have not or cannot escape the family and community where they"re known and labeled—is the Internet. Admittedly, a lot of the role-playing on the Internet can have a deviant quality. But researchers have found that many people who play life-simulation games, for example, set up the kind of families they would like to have had, even script alternate versions of their own role in the family or in a peer group. Decades ago the psychologist Erik Erickson conceived of middle age as a stage of life defined by a tension between stagnation and generativity—a healthy sense of guiding and nourishing the next generation, of helping the community. Ina series of studies, the Northwestern psychologist Dan P. McAdams has found that adults in their 40s and 50s whose lives show this generous quality—who often volunteer, who have a sense of accomplishment—tell very similar stories about how they came to be who they are. Whether they grew up in rural poverty or with views of Central Park, they told their life stories as series of redemptive lessons. When they failed a grade, they found a wonderful tutor, and later made the honor roll; when fired from a good job, they were forced to start their own business. This similarity in narrative constructions most likely reflects some agency, a willful reshaping and re-imagining of the past that informs the present. These are people who, whether pegged as nerds or rebels or plodders, have taken control of the stories that form their identities. In conversation, people are often willing to hand out thumbnail descriptions of themselves: "I"m kind of a hermit". Or a talker, a practical joker, a striver, a snob, a morning person. But they are more likely to wince when someone else describes them so authoritatively. Maybe that"s because they have come too far, shaken off enough old labels already. Like escape artists with a lifetime"s experience slipping through chains, they don"t want or need any additional work. Because while most people can leave their family niches, schoolyard nicknames and high school reputations behind, they don"t ever entirely forget them. Psychologists seem to believe that if adults want to remake their identity, they need to

A. tell their psychologists very similar stories about themselves.
B. command the identity-forming factors themselves.
C. quit their jobs and start their own business.
D. hire a wonderful tutor to get themselves into the honor roll.

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When Marine Lt. Alan Zarracina finally did the splits after months of struggling with the difficult pose in yoga class, the limber women around him applauded. Zarracina, a 24-year-old Naval Academy graduate and flight student, admits he would have a hard time explaining the scene to other Marines. Each class ends with a chant for peace. Then, instructor Nancy La Nasa hands students incense sticks as a gift for their 90 minutes of back bends, shoulder stands and other challenging positions. Zarracina has tried to drag some of his military friends to class, but they make fun of hint. "It"s not necessarily considered masculine", he said. Still, the popular classes, based on ancient Hindu practices of meditation through controlled breathing, balancing and stretching, are catching on in military circles as a way to improve flexibility, balance and concentration. A former Navy SEAL told Zarracina about the class. The August edition of Fit Yoga, the nation"s second-largest yoga magazine with a circulation of 100,000, features a photo of two naval aviators doing yoga poses in full combat gear aboard an aircraft carrier. "At first it seemed a little shocking—soldiers practicing such a peaceful art", writes editor Rita Trieger. Upon closer inspection, she said, she noticed "a sense of inner calm" on the aviators" faces. "War is hell, and if yoga can help them find a little solace, that"s good", said Trieger, a longtime New York yoga instructor. Retired Adm. Tom Steffens, who spent 34 years as a Navy SEAL and served as the director of the elite corps" training, regularly practices yoga at his home in Norfolk, Va. "Once in a while I"ll sit in class, and everyone is a 20-something young lady with a 10-inch waist and here I am this old guy, " he joked. Steffens, who said the stretching helped him eliminate the stiffness of a biceps injury after surgery, said the benefits of regular practice can be enormous. "The yoga cured all kinds of back pains", he said. "Being a SEAL, you beat up your body". Yoga breathing exercises can help SEALs with their diving, and learning to control the body by remaining in unusual positions can help members stay in confined spaces for long periods, he said. "The ability to stay focused on something, whether on breathing or on the yoga practice, and not be drawn off course, that has a lot of connection to the military", he said. "In our SEAL basic training, there are many things that are yoga-like in nature. According to Steffens, practicing yoga

A. helps exercisers remain young.
B. is very effective in relieving back pains,
C. helps exercisers realize the potentials of their bodies.
D. are good for forming a habit of doing things in a regular pattern.

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