阅读理解Passage 5 She was fast asleep

阅读理解Passage 3 The Internet is a worldwide network of thousands of computers and computer network

阅读理解It has often been remarked that the saddest thing about youth is that it is wasted on the young

阅读理解Through uninhibited spraying against one enemy we have destroyed the natural balances our survival requires

阅读理解Passage Four A child who has once been pleased with a tale likes, as a rule, to have it retold identically the same words, but this should not lead parents to treat printed fairy stories as sacred texts

阅读理解Passage 2 According to a new survey, 40 percent of us believe it is OK to turn up late for a meeting, because mobile phones have made it so much easier to let people know that you are five minutes away

阅读理解Passage H For office innovators, the unrealized dream of the paperless office is a classic example of high-tech hubris

阅读理解Text C There are a great many careers in which the increasing emphasis is on specialization

阅读理解Passage 4 The Internet, E-commerce and globalization are making a new economic era possible

阅读理解Passage 2 Until recently, many anthropologists assumed that the environment of what is now the southwestern United States shaped the social history and culture of the region‟s indigenous peoples

阅读理解Text C In some countries where racial prejudice is acute, violence has so come to be taken for granted as a means of solving differences, that it is not even questioned

阅读理解Passage 4 Life moves oneven in Tucson

阅读理解Passage 1 Global warming may or may not be the great environmental crisis of the 21st century, butregardless of whether it is or isntwe wont do much about it

阅读理解Stratford-on-Avon, as we all know, has only one industryWilliam Shakespearebut there are two distinctly separate and increasingly hostile branches

阅读理解Passage 1 Wild Bill Donovan would have loved the Internet, the American spymaster who built the Office of Strategic Services in World War II and later laid the roots for the CIA was fascinated with information

阅读理解Passage 4 Read the following passages carefully and then explain in your own English the exact meaning of the numbered and underlined parts

阅读理解Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A., B., C. and D.. You should deicide the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center.Passage FourThe discovery of planets around distant stars has become—like space-shuttle launches—newsworthy but just barely. With some 50 extrasolar planets under their belt, astronomers have to announce something really strange to get anyone’s attention.Last week they did just that. Standing in front of colleagues and reporters at the American Astronomical Society’s semiannual meeting in San Diego, the world’s premier planet-hunting team— astronomer Geoffrey Marcy of the University of California, Berkeley, and his colleagues-presented not one but two remarkable finds. The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light-years from Earth in perfect lockstep. One takes 30 days to complete an orbit, the other exactly twice as long. Nobody has ever seen such a configuration. But the second discovery is far stranger—a solar system 123 light-years away in the constellation Serpens, that harbors one “ordinary” planet and another so huge—17 times as massive as Jupiter—that nobody can quite figure out what it can be. It is, says Marcy, “a bit frightening”.What’s frightening is that these discoveries make it clear how little astronomers know about planets, and they add to the dawning realization that our solar system—and by implication Planet Earth—may be a cosmic oddball. For years theorists figured that other stars would have planets more or less like the ones going around the sun. But starting with the 1995 discovery of the first extrasolar planet-a gassy monster like Jupiter but orbiting seven times as close to its star as Mercury orbits around our sun—each new find has seemed stranger than the last. Searchers have found more “hot Jupiters” like that first discovery. These include huge planets that career around their stars not in circular orbits but in elongated ones; their gravity would send any Earthlike neighbors flying off into space. Says Princeton astronomer Scott Tremaine: “Not a single prediction for what we’d find in other systems has turned out to correct.”Last week’s giant was the most unexpected discovery yet. Conventional theory suggests that it must have formed like a star, from a collapsing cloud of interstellar gas. Its smaller companion, only seven times Jupiter’s mass, is almost certainly a planet, formed by the buildup of gas and dust left over from a star’s formation. Yet the fact that these two orbs are so close together suggests to some theorists that they must have formed together—so maybe the bigger one is a planet after all. Or maybe astronomers will have to rethink their definition of “planet”. Just because we put heavenly objects into categories doesn’t mean the distinctions are necessarily valid. And as Tremaine puts it, “When your classification schemes start breaking down, you know you’re learning something exciting. This is wonderful stuff.”

阅读理解Passage 2 Space flight and air travel would astound time travelers from the mid-19th century

阅读理解Picture-taking is a technique both for annexing the objective world and for expressing the singular self

阅读理解Passage 2 On a frigid afternoon in May, I slipped through a crack in the sea ice and dropped into the Arctic Ocean