1、大学英语四级模拟试卷 831及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write a short essay entitled Media and Shopping. You should write at least 120 words according to the outline given below. 1目前许多人通过媒体购物 2媒体购物有利有弊 3我的看法 Media and Shopping 二、 Part II Reading Comprehensi
2、on (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark： Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if the statem
3、ent contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 “Lost City“ Explored Using High-Speed Networks Undersea exploration is now as close as the nearest computer. “Telepresence“ (远程呈现 ) technology lets scientists - and the public -
4、 join expeditions without leaving dry land. A just completed expedition to the Lost City, an unusual undersea vent formation in the Atlantic Ocean, showcased the technology. The project used a network of satellites and high-speed Internet access to connect participants across many miles of land and
5、sea. During the expedition undersea explorer Robert Ballard and the crew aboard the National Ocean ic and Atmospheric Administration (NOAA) research ship Ronald H. Brown were anchored above the Lost City site. Meanwhile co-chief scientist Debbie Kelley and her colleagues were some 4,500 miles (7,250
6、 kilometers) away on the University of Washington campus in Seattle. At launch on July 17 Ballard described the project as a “precedent-setting ocean expedition that raises the bar on use of communications technology.“ “Normally on a deep-ocean expedition, I talk with the missions chief scientist ac
7、ross a table on the research vessel,“ he said. “In this case we talk across the planet.“ Ballards Institute for Exploration (IFE) in Mystic, Connecticut, supplied its veteran robotic vehicles, Hercules and Argus, to do the diving. The robots sent high-resolution images taken some 2,100 feet (700 met
8、ers) below the surface to the Ronald H. Brown. The images were transferred via satellite from the ship to receivers at the University of Rhode Island in Kingston. They were then sent across country to the team at the University of Washington. All told, data from the Lost City travelled nearly 5,000
9、miles (8,050 kilometers) in less than two seconds. Technology Boosts “Crew“ Size, Expertise Real-time deep-sea images have been beamed around the globe before. Ballard, who discovered the undersea wreck of the Titanic in 1985 ,returned to the site in 2004 and sent images to scientists at the Univers
10、ity of Rhode Island. But this time the lead scicentists directing the expeditions research operations joined the dive virtually. “We had a team of engineers and pilots who controlled the remotely operated vehicles (ROVs) and were taking instructions at all times from the University of Washington ( s
11、cience team),“ Dwight Coleman said. Coleman is a professor of marine science at the University of Rhode Island and a colleague of Ballards at IFE. Only so many people can live aboard a research ship. And although a large vessel may accommodate a science party of 30, half must be engineers who mainta
12、in and operate the ROVs. The number of researchers is thus limited by ship space, as well as by scheduling, budgets, and other real-world concerns. Telepresence provides an intriguing(令人好奇的 ) solution. “When youre doing exploration, youre never sure what expertise youll need, because youre never sur
13、e what youll find,“ Coleman said. “This technology provides the capability to network in experts on a specific subject from around the world. You can invite everybody aboard the ship.“ The technology seems to have a bright future. NOAA is converting a former U. S. Navy vessel, the U. S. N. S. Capabl
14、e, into a research vessel dubbed the Okeanos Explorer (okeanos is the ancient Greek term for “ocean“ ). The ship will be specially outfitted for future telepresence missions. Of course, telepresence technology isnt exactly like being at sea. In her online expedition log, co-chief scientist Deborah K
15、elley described the nearly surreal scene as Hercules first touched bottom. Kelley and her science team watched the action via cameras carried by. Argus, hovering some 100 feet (30 meters) above the seafloor. “This was a view like no other I had ever seen,“ she reported. “In the dark of the room at t
16、he UW with our first views of the bottom, I felt as if I was suddenly in the control room on the ship.“ “Later, walking out into the !it hallway in Mary Gates Hall, I was struck by the sharp contrast of being immersed within the environment of an ocean 4,500 miles away and nearly one half mile 0.8 k
17、ilometers down and that of a sunny Seattle day with Mt. Rainier in full view.“ A Natural Atlantis The Lost City is an undersea hot spring region unlike any other known to science. Kelley and her team at the University of Washington discovered the region by accident during a manned submersible(能潜水的 )
18、 expedition in 2000. The site boasts dramatic, 90- to 200-foot-high (30- to 60-meter-high) carbonate “chimneys“ that vent methane(沼气 ) and hydrogen-rich fluids. The pale towers, which host a great diversity of marine life, inspired the scientists to name their find after the mythical city of Atlanti
19、s. The site resembles undersea vent systems found along ridges in the seafloor where tectonic (建造 ) plates are spreading apart. Escaping hot volcanic gas at these vents creates a sunless but nutrient-rich environment that sup ports creatures such as tubeworms, mussels, shrimp, and large clams. The v
20、ents, first discovered nearly 30 years ago, changed scientific perspective on how and where life can exist on Earth. The Lost City formation, found 9 miles ( 14 kilometers) from the Mid-Atlantic Ridge, is the first evidence that other areas of the ocean could contain such ecosystems. Using ROVs in a
21、ddition to manned submersibles, the scientists hope to learn more about the type of organisms that can thrive near hydrothermal systems. And thanks to telepresence technology, scientists werent the only ones who could join the most recent Lost City expedition from remote sites half a world away. Imm
22、ersion Presents, IFEs sister organization, transferred live feeds and produced programs that allowed educators, Boys and Girls Clubs, museums, and libraries in the United States and Mexico to take part. “We want to connect the general public to ocean exploration through satellite and Internet techno
23、logy, “Coleman said. In fact, the live views from Hercules and Argus were often available to anyone, anywhere in the world, who had an Internet connection via the Immersion Presents Web site. 2 Telepresence Technology enables people to make expeditions into the sea without leaving dry land. （ A） Y （
24、 B） N （ C） NG 3 Communications technology was used on ocean expedition at the launching of Ronald H. Brown. （ A） Y （ B） N （ C） NG 4 The images taken by the robots in the deep sea can be transmitted straight to receivers at the University of Rhode Island. （ A） Y （ B） N （ C） NG 5 Real-time deep-sea im
25、ages have never been sent to the globe before the using of communications technologies. （ A） Y （ B） N （ C） NG 6 There are at most 1 researchers on the remotely operated vehicles. （ A） Y （ B） N （ C） NG 7 Okeanos Explorer is a US navy vessel, which once participated in a lot of fighting. （ A） Y （ B） N
26、 （ C） NG 8 Mary Gates Hall locates opposite Mountain Rainier. （ A） Y （ B） N （ C） NG 9 In 2000, the Lost City, was first discovered by accident during a _. 10 The Lost City, which are found along the ridges in the seafloor where tectonic plates are spreading apart, looks like _. 11 Escaping hot volca
27、nic gas at these vents results in a sunless but _. Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken onl
28、y once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. （ A） She wants to go to the movies. （ B） Shell go to the coffee shop. . （ C） She is very busy tonight. （ D） She is a quiet person. （ A） The m
29、an booked a single room. （ B） The woman made a mistake. （ C） The single rooms are fully booked. （ D） The double rooms are not available. （ A） The man didnt pass the scholarship examination. （ B） The womans application didnt impress the board. （ C） The woman needed to try for the scholarship next yea
30、r. （ D） The competition for scholarship was not very keen. （ A） The woman should explain it three times. （ B） The woman should be confident in herself. （ C） The woman is stupid in learning biology. （ D） The woman is making little progress everyday. （ A） She has no interest in basketball match. （ B）
31、She prefers basketball to volleyball. （ C） She likes watching violent sports. （ D） She is a volleyball fan. （ A） The man usually does morning exercise. （ B） The woman does exercise with the man. （ C） The man needs to do exercise. （ D） The woman lacks exercise. （ A） She has gone to the stadium for me
32、ns 100m race. （ B） She will go to the stadium for the mens 400m relay. （ C） She will take part in the womens 400m relay. （ D） She will be on time for the womens 400m relay. （ A） She mistook the class party date. （ B） She was two hours late for the party. （ C） She missed the class party. （ D） She did
33、nt enjoy the class party. （ A） The woman speaker is a doctor. （ B） The man speaker is called Silver. （ C） The man called the woman at lunchtime. （ D） The mans wife wanted to have a check-up. （ A） He will have a check-up the day after tomorrow at 9:30 a.m. （ B） He will have a check-up the day after t
34、omorrow at 10:00 a.m. （ C） He will have a check-up the day after tomorrow at 3:00 p.m. （ D） He will have a check-up the day after tomorrow at 4:00 p.m. （ A） He lives in Locklear Street, apartment 17. （ B） He lives in Locklear Street, apartment 7. （ C） He lives in Locklear Street, apartment 11. （ D）
35、He lives in Locklear Street, apartment 10. （ A） Insurance company clerk and customer. （ B） Automobile company clerk and customer. （ C） Colleagues working for the same auto company. （ D） Shopping assistant and customer. （ A） If he and his wife are interested in the business of the company. （ B） The c
36、onditions of the car. （ C） The couples driving experience all their life. （ D） Both B and C （ A） Labor insurance. （ B） Full coverage. （ C） Accident death insurance. （ D） Forced insurance. （ A） His car is a famous brand. （ B） He has received some tickets within the two years. （ C） The experience of t
37、he driver, the value of the car and the coverage he wants meet the requirements of her company. （ D） All of the above. Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken on
38、ly once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D. （ A） They cant lose weight. （ B） They can lose weight by cutting calories or exercising. （ C） They really cant keep the weight off. （ D） They should be on a diet to lose weight. （ A） Senio
39、r people are less likely to gain weight. （ B） Senior people are more likely to gain weight. （ C） Once people get fat, they will suffer various problems. （ D） Once people get fat, they gain weight steadily. （ A） It may have a negative influence. （ B） It plays a very significant role. （ C） It is meani
40、ngless. （ D） It can have a positive impact. （ A） Over 30 million men. （ B） Over 30 million middle-aged men. （ C） Those energetic Americans. （ D） Americans of both sexes and all ages. （ A） Because of their strong desire for good health. （ B） Because of their love for hobbies and pastimes. （ C） Becaus
41、e of their fear of heart disease. （ D） Because of their extra energy. （ A） It was rising. （ B） It was lowering. （ C） It remained unchanged. （ D） It was fluctuating （ A） In a fast-food restaurant. （ B） At a shopping center. （ C） At a county fair. （ D） In a bakery. （ A） Avoid eating any food. （ B） Pre
42、pare the right type of pie to eat. （ C） Wash his hands thoroughly. （ D） Practice eating a pie quickly. （ A） On the table. （ B） Behind his back. （ C） Under his bottom. （ D） On his lap. （ A） Looking sideways to see how fast your neighbor eats. （ B） Eating from the outside toward the middle. （ C） Swall
43、owing the pie with water. （ D） Holding the pie in the right position. Section C Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are requi
44、red to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the 36 The camera is often thought
45、to be a modem invention. But as early 1727, a German physicist 【 B1】 _ that light darkens silver salt in a chemical 【 B2】 _ . Using a camera, a big box with a small hole to let the light in, he made 【 B3】 _ images on the salt. Silver salt is still the 【 B4】 _ of film today. Then a French scientist m
46、ade the first 【 B5】 _ picture by using a special 【 B6】 _ of metal sensitized with silver salt. A photography he made in 1826 still 【 B7】 _ . The painter, Daguerre improved on the process 【 B8】 _ placing common salt the kind we eat on the metal. This was in 1839, 【 B9】 _ , but the problem was the pri
47、nting of photographs, and it wasnt until other scientists developed the kind of paper we now use, that good printing was possible and photograph become truly modem. In 1860, Matthew Bradey was able to take his famous pictures of the American Civil War, 【 B10】 _ . In the 20th century, George Eastman
48、of the United States simplified film developing, and Dr. Edwin Land invented the so-called “instant“ camera with self developing film. 【 B11】 _ it has taken more than one hundred years for the camera to reach its present condition of technical refinement. 37 【 B1】 38 【 B2】 39 【 B3】 40 【 B4】 41 【 B5】
49、 42 【 B6】 43 【 B7】 44 【 B8】 45 【 B9】 46 【 B10】 47 【 B11】 Section A Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item with a single line through the center. You ma
