1、 11 days, 10 nights, 14 travelers Departs March 14, May 23 and November 21, 2020 Charles Darwin called the Galpagos Islands “a little world within itself”. This journey lets you explore the worlds most fascinating wildlife destination while traveling in comfort. Experience evolution in progress and
2、learn more about these historic islands. Visit islands with wildlife species(物种)that exist nowhere else in the world. See giant tortoises and seabirds, and swim with sea lions. Winter in Yellowstone 7 days, 6 nights, 25 travelers Departs January 10 and 24, 2020 Yellowstone National Park is magical,
3、where visitors are few and wildlife viewing is wonderful. In the freezing air, see mud pots and pouring springs strangely covered in steam. The journey puts one of our greatest ecosystems on full display. View wildlife in their habitat as few see them. Flying in Zero Gravity Departs March 12, 2020 T
4、he fantasy of floating through the air, weightless, is one that has been realized by only a few. Now, you can experience it for yourself. Join one of the famous ZERO-G Experience flights for a true weightless experience. Youll also learn about the frontiers in the universe scientists are seeking to
5、control. A Family Hunt for Dinosaurs 6 days, 5 nights, 25 travelers Departs June 25, 2020 Join this adventure to western Colorados red rock country, for children 8 and older and their families. Go behind the scenes at a university laboratory for a special hands-on experience to learn how fossils(化石)
6、are cleaned, identified and preserved. Dig on your own for 250-million-year-old fossils, which you can bring home.21. What did Charles Darwin say about the Galpagos Islands? A. It had a small population. B. It was actually a small island. C. It had unique wildlife species. D. It was a rarely visited
7、 island.22. Which activity is suitable for space explorers? A. Winter in Yellowstone. B. Flying in Zero Gravity. C. A Family Hunt for Dinosaurs. D. The Gal Evolution in Action.23. What can tourists do on A Family Hunt for Dinosaurs?A. Attend a lecture about fossils. B. Learn to identify the red rock
8、s.C. Spend a week in the lab. D. Discover ancient fossils.BThe Aral Sea in Central Asia, once the fourth larges lake in the world, had shrunk because ofirrigation and drought. Then in 2005, the Kazakh government and the World Bank constructed a dam that separated the northern and southern parts of t
9、he sea, allowing the northern part of the Aral Sea to start to recover. There are fish in the water again and during the four years after 2005, fishermen came here to celebrate. However, this weeks satellite pictures show that the eastern part of the Aral Sea is completely dry. It is the first time
10、that it has completely dried up in 600 years.Yusup Kamalov, a scientist from Uzbekistan, is my guide. We re standing looking at a vast desert. Its not like any other desert-there are abandoned fishing boats lying on the sand. Fifty years ago, The southern shore of the Aral Sea was right where we sta
11、nd. Now it is 80 kilometres away to the northwest and we set off to drive to the waters edge. On the way, I see people riding bikes or walking here and there, which reminds me how I felt while taking a boat in this lake many years ago.Pointing to the oil rigs(钻塔)standing on her sand, Kamalov says, 4
12、4 Each year a few more are put up to exploit(开 采)oil. Can you imagine,” he continues, “that 40 years ago the water was 30 metres deep right here?” We reach the water and I try to swim, but the water is so salty that I just float on the surface. No fish are able to survive here. This is what the end
13、of the world looks like. More efforts are obviously needed to change it, but time is limited, says Kamalov.24.Which of the following best describes the fishermen in the Aral Sea in 2008?A. Selfless. B. Pleased. C. Frightened D. Demanding.25. How do the author and his guide travel to the Aral Seas so
14、uthern shore?A. By car. B. By boat. C. By bike. D. On foot.26. What can we infer about oil exploitation in the Aral Sea?A. It has become the development focus. B. It has polluted the Aral Sea seriously.C. It will do much good to the fishermen. D. It will solve the water crisis of Uzbekistan.27. Whci
15、t is Kamalov,s attitude to the Aral Seas future?A. Ambiguous. B. Confident. C. Skeptical. D. Worried.C Scientist Stephen Hawking had to work really hard to speak. He chose letters and words from a synthesizer(合成器)screen controlled by twitches of a muscle in his cheek. However, the painstaking proces
16、s used by Hawking, who died in 2018, might soon be replaced. With a very different approach, doctors have found a way to get a persons speech directly from their brain. The breakthrough is the first to show how a persons intention to say specific words can be taken from brain signals and turned into
17、 text quickly. It is fast enough to keep pace with natural conversation. Doctors wanted something that allows people who are paralyzed(瘫痪)to communicate more quickly than existing devices allow for. Todays devices pick up eye movements and muscle sudden movements to control a keyboard. “To date ther
18、e is no speech system that allows users to have interactions on the rapid timescale of a human conversation,” said Edward Chang. In the research, Chang used the devices to record brain activity while each patient was asked questions. Using the recordings, Chang and his team built computer models tha
19、t learned to match particular patterns of brain activity to the questions the patients heard and the answers they spoke. Once trained, the software could identify almost instantly, and from brain signals alone, what question a patient heard. It was accurate 76 percent of the time. The work is still
20、in its early stage. However, Winston Chiong, a scientist, said it was important to debate the moral problems such systems might raise in the future. For example, could such speech devices by accident reveal peoples private thoughts? Chang said that sharing their peoples inner thoughts is almost impo
21、ssible. His device works only as thoughts are turned into signals to drive muscles involved in speech. “I have no interest in developing a technology to find out what people are thinking, even if it were possible. But if someone wants to communicate and cant, I think we have a responsibility as scie
22、ntists to restore that.” he said.28. Why does the writer mention Stephen Hawking? A. To introduce a breakthrough in communicating.B. To show honor to the famous scientist. C. To reflect his difficulty in speaking. D. To explain his special way of making sound.29. How does the brain-reading software
23、work? A. By sensing the sound wave of words. B. By receiving brain signals. C. By moving muscle suddenly. D. By picking up eye movements.30. What does the underlined word “reveal” mean in paragraph 6? A. Remove. B. Cover. C. Expose. D. Change.31. What is the main idea of the text? A. The patient com
24、municates with doctors freely. B. A new software follows your words meanwhile. C. Others may read your inner thoughts.D. Brain-reading software helps the paralyzed talk.DFor a generation now, school reform has meant what students must be taught and carried out by standardized tests. Heres a thought
25、experiment. Suppose that next year almost every student passed the tests. What would the reaction be from people? Would they shake their heads in respect and say, “Damn, those teachers must be good!”? Of course not. Such remarkable success would be used as evidence that the tests were too easy and i
26、t needs to raise standards. “High standards” really means “standards that all students will never be able to meet”. My little thought experiment uncovers a truth that we have been taught to respond with doubt whenever all members of any group are successful. In America, success doesnt count unless i
27、t is got by only a few. Consider widespread complaints about “grade inflation(膨胀)” in higher education. Many people dont even bother to stress that grades have risen over time. They simply point to how many students get As right now. The goal, in other words, isnt to do well but to defeat other peop
28、le who are also trying to do well. Grades in testing should be used to announce whos beating whom. A schools final task, apparently, is not to help everyone learn but to prepare the game so that there will always be losers. This makes no sense in any situation. Perhaps, for example, we can defend ra
29、ting states or nations based on the quality of their air, health care or schools, but ranking them is foolish. School testing ranking doesnt lead to improvements in performance but tends to hold us back from doing our best. It makes productive teamwork less likely and leads all concerned to focus no
30、t on meaningful improvements but on trying to beat everyone else. Most of all, it encourages the false belief that excellence is a zero-sum game. It would be more reasonable to rescue the spirit of the concept: Everyone may not succeed, but at least in theory all of us could.32. What did the writers
31、 thought experiment prove? A. Good teachers represent higher test scores. B. American tests are usually too easy. C. Excellence is regarded as a rare thing. D. Students dont meet the test standards.33. What does the writer think American schools seem to do? A. Promote teachers to teach better. B. Re
32、move the belief of beating others. C. Help all students do well at school. D. Ensure the existence of failures.34. What is the writers attitude towards schools testing ranking? A. Sympathetic. B. Ambiguous. C. Disapproving. D. Unconcerned.35. What is the best title for the text? A. Why Cant Everyone Ge
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