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With human footprints on the moon, radio telescopes listening for messages from alien creatures (who may or may not exist), technicians looking for celestial and planetary sources of energy to support our civilization, orbiting telescopes' data hinting at planetary systems around other stars, and political groups trying to figure out how to save humanity from nuclear warfare that would damage life and climate on a planet-wide scale, an astronomy book published today enters a world different from the one that greeted books a generation ago. Astronomy has broadened to involve our basic circumstances and our mysterious future in the universE.With eclipses and space missions broadcast live, and with NASA, Europe, and the USSR planning and building permanent space stations, astronomy offers adventure for all people, an outward exploratory thrust that may one day be seen as an alternative to mindless consumerism, ideological bickering, and wars to control dwindling resources on a closed, finite Earth.
Today's astronomy students not only seek an up-to-date summary of astronomical facts— they ask, as people have asked for ages, about our basic relations to the rest of the universE.They may study astronomy partly to seek points of contact between science and other human endeavors: philosophy, history, politics, environmental action, even the arts and religion.
Science fiction writers and special effect artists on recent films help today's students realize that unseen worlds of space are real places—not abstract concepts. Today's students are citizens of a more real, more vast cosmos than conceptualized by students of a decade ago.
In designing this edition, the Wadsworh editors and I have tried to respond to these developments. Rather than jumping at the start into murky waters of cosmology, I have begun with the viewpoint of ancient people on Earth and worked outward across the universE.This method of organization automatically (if loosely) reflects the order of humanity's discoveries about astronomy and provides a unifying theme of increasing distance and scalE.
This passage is most probably taken from ______.
A.an article of popular science
B.the introduction of a book of astronomy
C.a lecture given by the author to astronomy students
D.the preface of a piece of science fiction

A.B.
C.
D.
This
E.
A.an
F.the
G.a
H.the

【参考答案】

B
解析：综观全文，尤其是从最后一段第一句中的“In designing this edition，the Wa......

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1 Consider these results from a study released last week by the Manhattan Institute, a New York-based think tank: Two-thirds of suburban and urban 12th-graders have had sex; 43 percent of suburban 12th-graders and 39 percent of urban 12th-graders have had sex during 'one-night stands.' 74 percent of suburban 12th-graders and 71 percent of urban 12th-graders have tried alcohol more than two or three times. Just over 40 percent of 12th- graders in urban and suburban schools have used illegal drugs. 20 percent of urban 12th grade girls have been pregnant; 14 percent of suburban 12th-grade girls havE.2 The study was conducted via student surveys, and the data were collected from the same group of adolescents in three waves from 1995 to 20O2. The study, which surveyed an estimate of 20,000 students, was sponsored by the National Institute of Child Health and Human Development and other federal agencies. The study's authors, Jay Greene and Greg Forster, concluded that students in suburban high schools consume alcohol, smoke cigarettes and partake in as much illegal drug use as students in urban schools, and sometimes even more than their city counterparts. Students in suburban schools also had about the same levels of sexual behavior. as their urban counterparts. The authors suggest that folks who have been fleeing the city hoping to find a 'wholesome' life may just come up wanting.3 Greene, a senior fellow at the institute, told me that he was surprised that the study showed there isn't too much of a difference between urban and suburban high schoolers4 Surprised? That's because we continue to idealize the more affluent suburbs and demonize the poorer sections of the city. For decades, 'city' has been a euphemism for black and poor and decadent, and 'suburbs' synonymous with white and wealthy and puritanical. But, of course, neither has ever been totally truE.Yet, we're often still surprised when a group of well-to-do kids do something stupid and not so surprised when poor kids do.5 Henry Binford, an associate professor of history at Northwestern University, said there's a long history of idealizing suburban life that goes back to the 19th century. 'Part of the appeal for people moving out was for them to get away from the dirt and crime, poor services and the hurly-burly of the downtown,' he saiD.'Many imagined that the suburbs would be havens. They thought suburban life was healthier and more moral than city living. But the suburbs were never pure or safe or without difficulty as people thought they would bE.' It's fantasy duking it out with reality.6 Why the similarities despite the differences in ZIP codes and, often, opportunities? For starters—and this is a no-brainer—adolescents will be adolescents no matter where they livE.They have to contend with similar peer pressures regarding sex, drugs and alcohol. Other pervasive influences, including various media messages, transcend suburban-urban boundaries.7 Young people tend to have a high propensity for doing stupid things and getting themselves into sticky situations. How ZIP codes play a role is that some wealthier kids' parents can afford to get them unstuck far better than others. Most of us recognize that there is no hermetically sealed place to rear youngsters. But some people still think so, says Greene, a graduate of New Trier High School on the North ShorE.'A lot of the flight to the suburbs is still related to the perception that certain social ills are so concentrated in the city,' Greene saiD.That perception is reinforced by television shows and movies about city life; by the news. It's so ingrained that we tend not to question it. We take it for granteD.8 One of the things that attracted me to this study was not so much the similarities—the 'findings' that kids will be kids wherever they live—but the continued shock about theA.compare the behavior. of urban and suburban kids in terms of some social problemsB.highlight the gravity of some social problems involving kidsC.show the author's well-informednessD.draw attention to the seriousness of problems with suburban kids

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听力原文：M: Your son certainly shows a lot of enthusiasm on the tennis court. He talked like a professional.W: I only wish he'd show as much for his studies.Q: What does the woman imply about her son?(17)A.He shows great enthusiasm for his studies.B.He is a very versatile person.C.He has no talent for tennis.D.He does not study hard enough.

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B.
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C.He
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