单选题. Questions 5 to 8 are bused on the conversation you have just heard.5.

单选题 Teenagers at risk of depression

单选题. It is clear that human history will end; the only mystery is when. It is also clear that if the timing is left to nature (or, if you prefer, to God) and humans hang on until the bloody end, the race's final exit will be ignoble (不光彩的). If future generations escape the saurian (蜥蜴类) agony of extinction by a wandering chunk of rock or ice, the sun's unavoidable growth to gianthood will still burn their last successors to ashes: only cinders and gases and dust will remain. Far future generations might prolong the process by posting colonies beyond the earth's orbit, but these would be sad outposts at the end of the solar system's long day, clutching memories of a lost planet and of billions of sacrificed souls. The difficulties—fantastic difficulties—of interstellar (星际的) travel might be overcome, but the mightiest of starships could do no more than defer the end of the world. An ignoble existence hopping from planet to planet—clinging to each clod until it, in its turn, was vaporized or frozen—might still be bearable were it not for the knowledge of its final uselessness. In the end, there is only death by gravity, the quantum (量子) pit or the heatless grey soup. The great violinist Jascha Heifetz was great not least because he quit the concert stage at his peak, before the show became stale or the audience drifted away. To exit gracefully is sublime (美妙的), as Heifetz understood. And only one species is capable of choosing a similarly graceful exit; all others march on like robots. To call time on the human race by choice, not necessity, would be the final victory of the human spirit over animal nature, an absolute emancipation from the command of DNA. Precisely because no other known life-form could do or even conceive such a thing, humanity must. Science has revealed only one place in the universe that is hospitable to intelligent life, and humans are the only intelligence that, as far as is known, has ever enjoyed the opportunity to occupy it. If people left the stage after a reasonable run, in the fullness of time intelligence could evolve again (dolphin-people? Chimp-people? orchid (兰花) people?). And then, in due course, when this new species deciphered (译解) human books or reached the marker that might be left for them on the windless moon, they would know that man ended his dominion so that theirs might begin. Imagine, then, how they will regard us. It is, far and away, the greatest act of goodness ever contemplated, the ennoblement of a whole species; an act, almost, of angels.1. According to the passage, what might be human being's best choice for the final exit? ______

单选题. Bill Stone is not an astronaut—he is the world's most famous caver. Leading large international teams and backed by sponsors like the National Geographic Society, he has mounted more than 50 major expeditions to measure the depth of the most hostile reaches of inner space. Spending weeks underground, his crews have traveled deep inside our planet to the remotest locations touched by humans. Nobody is better at what he does, but this gives him limited satisfaction. He is consumed by ideas for how humanity could explore space and wants to personally establish a privately funded base on Jupiter. It is, he thinks, nothing less than destiny. A reasonable observer might choose other words: obsession, fantasy. Bill possesses neither great wealth nor extensive political connections. He is an engineer and runs Stone Aerospace, a company so small that when FedEx rings, he usually signs for the package himself. So to hear Bill talk—"It's not a big leap for me to go to Jupiter." For Bill, caves are a proving ground. The experience gained there will help people explore outer space. But now, after spending nearly three decades on the margins of the space industry, Bill is closer than he's ever been to proving that caves are the best earthly training ground for exploring space. Backed by a $5 million fund from NASA, he is developing a robot called DepthX that may turn out to be the most advanced autonomous underwater vehicle (AUV) ever. NASA hopes to someday use a robot like Bill Stone's DepthX to explore Europa, a frozen moon of Jupiter and one of the most probably places in our solar system to support life. Like its inventor, DepthX is a caver, most capable of searching harsh environments. Its theoretical mission, though, is bold even by Bill's standards: a hunt for extraterrestrial (地球外的) life on Europa. Innovator Bill Stone plans to drop one of the world's most advanced underwater robots, DepthX, into the deepest hole on Earth. If all goes well, this thing just might help get him to Europa. DepthX's first major field trial will take place this month in Mexico's Zacaton Cenote, the world's deepest hole. For Bill's future space ambitions to have any chance, he needs to impress the new generation of wealthy space-loving investors. To do that, he needs to ace (取得好成绩) this first trial and, at 54 years old, he needs to do it fast. As one of his oldest friends puts it "Time is running out for Bill."1. What have Bill Stone and his teams accomplished? ______

单选题. Questions 16 to 18 are based on the recording you have just heard.1.

单选题 Having finished their morning work

单选题. On the high-speed train from Avignon (阿维尼翁) to Paris, my husband and I landed in the only remaining seats on the train, in the middle of a car, directly opposite a Frenchwoman of middle years. It was an extremely uncomfortable arrangement to be looking straight into the eyes of a stranger. My husband and I pulled out books. The woman produced a large makeup case and proceeded to freshen up. Except for a lunch break, she continued this activity for the entire three-hour trip. Every once in a while she surveyed the car with a bright-eyed glance, but never once did she catch my (admittedly fascinated) eye. My husband and I could have been a blank wall. I was amused, but some people would have felt insulted, even repulsed (厌恶的). There is something about primping in public that calls up strong emotional reactions. Partly it's a question of hygiene. (Nearly everyone agrees that nail-paling and hair-combing are socially considered unwise to do.) And it's a matter of degree. Grooming-a private act-has a way of negating the presence of others. I was once seated at a party with a model-actress who immediately waved a silly brush and began dusting her face at the table, demonstrating that while she was next to me, she was not with me. In fact, I am generally inhibited from this maneuver in public, except when I am in the company of cosmetics executives (when it's considered unpleasant not to do it) or my female friends when it's a fun just-us-girls moment. In a gathering more professional than social, I would refrain. Kathy Peiss, a history professor at the University of Massachusetts in Amherst and an authority on American beauty rituals, says that nose-powdering in the office was an occasion for outrage in 1920's and 30's. Deploring the practice as a waste of company time, trade journals advised managers to discourage it among clerical workers. But how much time could it take? Certainly the concern was out of proportion with the number of minutes lost Peiss theorizes that it was the blatant assertion of a female practice in what had been an all-male province that disturbed critics. Peiss tells me that after the 30's, pulling out a compact was no longer an issue. It became an accepted practice. I ask if she feels free to apply lipstick at a professional lunch herself. Sounding mildly shocked, she says she would save that for the privacy of her car' afterward. Why? Because it would be "a gesture of inappropriate femininity." One guess is that most professional women feel this way. There is evidence of the popularity of the new lipsticks that remain in place all day without retouching. It's amazing to think that in our talk-show society, where every sexual practice is openly discussed, a simple sex-specific gesture could still have the power to disturb. The move belongs in the female arsenal and, like weapons, must be used with caution.1. According to the author, "My husband and I could have been a blank wall." (Line 6, Para. 1) most probably means "______".

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单选题. Questions 16 to 18 are based on the recording you have just heard.1.

单选题. Questions 22 to 25 are based on the recording you have just heard.7.

单选题26. The author of report is well ______ with the problems in the hospital because he has been working there for many years.

单选题《复合题被拆开情况》 Born from the accessibility of mass air travel, modern international tourism has been popularized as "holiday-making" in regions that offer comparative advantages of sand, sun and sea. Trav

单选题. Questions 16 to 19 are based on the recording you have just heard.1.

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单选题. Questions 20 to 22 are based on the recording you have just heard.5.