[外语类试卷]大学英语六级模拟试卷587及答案与解析.doc

1、大学英语六级模拟试卷 587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 Art Education Courses in Colleges. You should write at least 150 words following the outline given below： 1有些高校为学生开设了艺术教育课 2有人认为这有利于学生素质的提高，有人则认为会影响学生学习专业课 3我的观点 Art Educat

2、ion Courses in Colleges 二、 Part II Reading Comprehension (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 1-4, mark： Y (for YES) if the statement agrees with the info

3、rmation given in the passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 How Safe Is Your Cell Phone? It takes a little extra work to get in touch with Andrea Boland. The Maine state representativ

4、e answers e-mails and lists her business and home phone numbers on the Web. But unlike many politicians surgically attached to their BlackBerrys, she keeps her cell switched off unless shes expecting a call. And if she has her way, everyone in Maine and perhaps, eventually, the rest of the US will s

5、imilarly think twice before jabbering (急促含糊地说 ) away on their mobiles. In March, Maines legislature will begin debating a bill she submitted that would require manufacturers to put a warning label on every cell phone sold in the state declaring, “This device emits electromagnetic radiation, exposure

6、 to which may cause brain cancer.“ Her warning would continue: “Users, especially children and pregnant women, should keep this device away from the head and body.“ For those of you now eyeing your cell phones suspiciously, its worth noting that both the National Cancer Institute and the World Healt

7、h Organization say there isnt evidence to support the assertion that cell phones are a public-health threat. But a number of scientists are worried that there has been a dangerous rush to declare cell phones safe, using studies they feel are inadequate and too often weighted toward the wireless indu

8、strys interests. An analysis published by University of Washington neurologist Henry Lai determined that far more independent studies than industry-funded studies have found at least some type of biological effect from cell-phone exposure. Several countries including Finland, Israel and France have

9、issued guidelines for cell-phone use. And San Francisco Mayor Gavin Newsom, who began researching the issue when his wife was expecting their first child, is hoping his city will adopt legislation that would have manufacturers print radiation information on cell-phone packaging and manuals and requi

10、re retailers to display the data on the sales floor. With 270 million Americans and 4 billion people around the world using cell phonesand more signing up every day a strong link between mobiles and cancer could have major public-health implications. As cell phones make and take calls, they emit low

11、level radio-frequency (RF) radiation. Stronger than FM radio signals, these RF waves are still a billionth the intensity of known carcinogenic (会致癌的 ) radiation like X-rays. The wireless industry contends that RF radiation lacks the strength to alter molecules in the human body; the Federal Communi

12、cations Commission maximum for cell-phone-signal exposure is intended to; prevent RF radiation from heating tissue to the point that cells are damaged. Cell-phone RF radiations “effect on the body, at least at this time, appears to be insufficient to produce genetic damage typically; associated with

13、 developing cancer,“ Dr. Robert Hoover, director of the National Cancer Institutes Epidemiology and Biostatistics Program, testified at a 2008 congressional hearing. But the body of research is far from conclusive. In 1995, Lai co-wrote a study showing that a single two-hour exposure of RF radiation

14、 at levels considered safe by the US standards produced the sort of genetic damage in rats brain cells that can lead to cancer. Though subsequent researchers often funded in part by the wireless industry failed to replicate Lais results, a 2004 European Union-funded study reported similar findings.

15、Dariusz Leszczynski, a research professor at Finlands Radiation and Nuclear Safety Authority in Helsinki, has done studies indicating that RF radiation may create a stress reaction in the cells that line blood vessels, leading to a dangerous damage in the blood-brain barrier. “Mobile-phone radiation

16、 may be able to indirectly hurt cells, perhaps by interfering with their ability to repair normal DNA damage,“ he says. “Given the scientific uncertainty, its premature to say the use of cell phones is safe.“ If RF radiation increases the chances of developing brain cancer, it should show up in long

17、term studies of cell-phone users. But many epidemiological studies have found no clear connection, including a 2007 Danish Cancer Society study of 421 000 cell-phone users, which led many in the media to conclude that mobiles are harmless. To date, “peer-reviewed scientific evidence has overwhelmin

18、gly indicated that wireless devices do not pose a risk,“ says John Walls, a spokesman for CTIA, a global wireless association. There are problems with many of these studies, however. For starters, the Danish one which reviewed the medical records of people who had signed up for cell phones from 1982

19、 to 1995 didnt include all the business users, who were among the earliest adopters and most intensive users, because they were not billed directly. Also, the study looked only at tumors that were diagnosed by 2002 not long after daily use of cell phones became widespread. Brain cancers can take sev

20、eral decades to develop, so it might be many years before a measurable bump in cancer rates shows up. “The latency period we have is far too short,“ says Dr. Siegal Sadetzki, a cancer researcher at Israels Gertner Institute whose epidemiological studies have found some connections between cell-phone

21、 use and salivary-gland (唾液腺 ) tumors. “And today, people are using the phone much more heavily.“ Sadetzki served as Israels principal investigator in the Interphone study, which was conducted over the past several years by 13 countries, most of them European. The Interphone results initially were t

22、o be published in 2006, but the final report has been postponed repeatedly, and the study investigators are, reportedly deeply divided. In the US, which isnt one of the Interphone countries, the National Toxicology; Program is launching studies of the health effects of cell phones. But peer-reviewed

23、 results wont be available until at least 2014. Thats a long time to wait for definitive data. The good news is that there are easy ways for those concerned about RF radiation to cut down on exposure. Using your cell phones speaker or connecting a wired headset while keeping the handset away from yo

24、ur body drastically reduces RF exposure. (Bluetooth headsets help too, but they still emit some radiation.) And given the potentially more serious risks for children, who have thinner skulls than adults, parents might want to wait before handing teens their first phone or at least ensure they use it

25、 mostly for texting. Meanwhile, a start-up, Pong Research, is selling cell-phone cases that significantly reduce radiation exposure by channeling waves away from the head. “I think its best to avoid as much of the risk as possible until the verdict is in,“ says Alfred Wong, Pongs chief scientist and

26、 a professor emeritus of physics at UCLA. Thats exactly what Boland and other advocates of warning labels are arguing. Its true that cell-phone use has yet to be linked to cancer risk. “Scientifically speaking, we dont have the proof yet,“ says Sadetzki. “But as a public-health concern, Im saying we

27、 definitely should adopt precautions.“ 2 It is not very convenient to communicate with Andrea Boland because_. （ A） her phone numbers are not published to the public （ B） she has no e-mail or cell phone for communication （ C） she keeps her cell phone off most of the time （ D） she is too attached to

28、the functions of her cell phone 3 If Andreas bill is passed, it is possible that_. （ A） cell phone production will be banned in Maine （ B） warning labels will be put on cell phones （ C） a new fund will be established for brain cancer （ D） children will have access to cell phones 4 According to Henry

29、 Lai, the researches on cell phones_. （ A） show that cell phones are totally harmless to health （ B） are absolutely funded by the wireless industry （ C） demonstrate that cell phones can directly cause cancer （ D） have different results from different studies 5 The RF waves are a kind of radiation th

30、at is_. （ A） strong enough to cause cancers （ B） weaker than FM radio signals （ C） slightly weaker than X-rays （ D） at a relatively low level 6 What does Dr. Robert Hoovers announcement imply? （ A） RF radiation is associated with the development of cancer. （ B） RF radiation has been definitely deter

31、mined as harmless. （ C） Theres no efficient evidence to show the risks of RF radiation. （ D） Cell phones should be banned until the effects of RF radiation are clear. 7 Dariusz Leszczynskis studies have shown that_. （ A） cell phones may lead to some damage to the cells （ B） RF radiation is able to h

32、urt cells directly （ C） the blood vessels can be seriously damaged by cell phones （ D） it is appropriate to say that it is safe to use cell phones 8 Why was the Danish Cancer Society study on cell phones not accurate? （ A） Because it only investigated the earliest adopters. （ B） Because medical reco

33、rds were too difficult to be obtained. （ C） Because some intensive users were not included. （ D） Because more cancers were discovered after the research. 9 It is reported that the Interphone study report has been put off repeatedly because the study investigators of are_. 10 In order to reduce the r

34、isks of RF radiation, people may use cell phones speaker or_. 11 The cell-phone cases sold by Pong Research can channel waves away from the head to_. 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 ques

35、tions will be asked about what was said. Both the conversation and the questions will be spoken only 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） He was taking pictures on campus then

36、 （ B） His appearance was unintentional. （ C） He is a member of the school TV station. （ D） He will host the Six Oclock News. （ A） He isnt interested in it. （ B） He wants to listen to it. （ C） He plans to give it up. （ D） He would like to choose it next year. （ A） Doctors health. （ B） Health experts

37、 （ C） Healthy food. （ D） Physical exercises. （ A） She had a sharp pain in her stomach. （ B） She went to see a doctor at lunch time. （ C） She spent her lunch time studying. （ D） She didnt want to eat with the man. （ A） The students always sleep in his class. （ B） He is popular among the students. （

38、C） He prefers discussion groups in his class. （ D） He asks the students to sit in front-row seats. （ A） Shes surprised that Sandy could work for the agency. （ B） She wonders why Sandys still keeping her job. （ C） She doubts Sandy has earned much money. （ D） She doesnt know Sandys new term has starte

39、d. （ A） Classmates. （ B） Employer and employee. （ C） Professor and student. （ D） Doctor and patient. （ A） He will accept the womans suggestion. （ B） He will read more material on Mexico. （ C） He will have to choose another topic. （ D） He will ask the woman to choose the topic. （ A） The kitchen is at

40、 the end of the room. （ B） The kitchen has some mini-furniture. （ C） Basic appliances in the kitchen can be used. （ D） The kitchen would be charged additionally. （ A） From the auction. （ B） From the woman. （ C） From the Internet. （ D） From the supermarket. （ A） She is not the landlady. （ B） She has

41、to pay a loan. （ C） The prices are rising. （ D） The taxes for the building are high. （ A） They think highly of the man. （ B） They will get on well with the man. （ C） They will like their new job. （ D） They will soon like the man. （ A） It improves his skiing skills. （ B） It gives him an opportunity t

42、o make friends. （ C） It provides him a chance to stay outdoors. （ D） It helps him keep in great shape. （ A） To make the skiers satisfied. （ B） To make sure the skiers are safe. （ C） To help skiers improve their physical conditions. （ D） To check the identification of the skiers. （ A） His role as a n

43、ew trainer. （ B） His excellent figure. （ C） His ability to help the skiers. （ D） His interpersonal skills. 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 only once. Aft

44、er you hear a question, you must choose the best answer from the four choices marked A, B, C and D. （ A） Its stimulating effect is an illusion. （ B） It stimulates your nerves. （ C） It supplies nutrition to the brain. （ D） It makes you more tired. （ A） Have coffee after breakfast. （ B） Give up the ha

45、bit of drinking in the morning. （ C） Abstain from caffeine completely. （ D） Be alert about the risk of being paralyzed. （ A） It shows great variance in levels of alertness among volunteers. （ B） It proves that coffee improves memory and attentiveness. （ C） It suggests that caffeine only brings drink

46、ers back up to normal. （ D） It indicates that coffee drinking is addictive. （ A） To encourage bicycling in and around central London. （ B） To make full use of the docking stations in London. （ C） To build an environmentally friendly city. （ D） To solve the problem of traffic congestion. （ A） No fee

47、is charged to participate in the scheme. （ B） No registration is needed to get a key. （ C） Fee is charged according to the length of time. （ D） It is launched by the Premier of Britain. （ A） Ask users to sign up for the scheme. （ B） Have more docking stations in place. （ C） Lower the price it costs

48、to hire the bicycles. （ D） Give up the charges as a gesture of goodwill. （ A） Some of them are frightening. （ B） They eat human beings when disturbed. （ C） They attack human beings without irritation. （ D） Some of them are powerful. （ A） The whale shark. （ B） The greatest white shark. （ C） The bull

49、shark. （ D） The tiger shark. （ A） Chewing the fish. （ B） Slashing people near them. （ C） Grabbing the animals. （ D） Cutting the prey into pieces. （ A） Sharks like eating humans. （ B） All large sharks attack humans. （ C） White shark attacks people when provoked. （ D） Bull shark doesnt attack people. 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 ide