1、大学英语六级模拟试卷 486及答案与解析 一、 Part I Writing (30 minutes) 1 Directions: For this part, you are allowed 30 minutes to write a short essay entitled The Safety of Food. You should write at least 150 words following the outline given below: 1. 目前食品安全的状况 2.产生这些食 品质量问题的原因 3.我们应该怎么做 The Safety of Food 二、 Part II
2、 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 information given in the passage; N (f
3、or 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 Part Reading Comprehension (Skimming and Scanning) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions
4、 on Answer Sheet 1. For question 1-7, choose the best answer from the four choices marked A), B), C) and D). For questions 8-10, complete the sentences with the information given in the passage. Geniuses In 1905, Albert Einstein developed the theory of special relativity. He also proved that atoms e
5、xist and figured out that light behaves as both a particle and a wave. To top it all off, he developed his famous equation E=mcc, which describes the relationship between matter and energy, the same year. He was only 26 years old. Without a doubt, Einstein was a genius. So was Isaac Newton-as any fa
6、n of “Star Trek“. The Next Generation can say he invented physics. He also played a big role in the development of calculus, which some people have trouble comprehending even after extensive classroom study. Another genius, Wolfgang Amadeus Mozart, started composing music when he was 5 years old. Mo
7、zart wrote hundreds of pieces before his death in 1760 at age 35. According to conventional wisdom, geniuses are different from everyone else. They can think faster and better than other people, In addition, many people think that all that extra brainpower leads to eccentric or quirky behavior. And
8、although geniuses are fairly easy to spot, defining exactly what makes one person a genius is a little trickier. Figuring out how that person became a genius is harder still. There are two big things that make it difficult to study genius: The genius label is subjective. Some people insist that anyo
9、ne with an intelligence quotient (IQ) higher than a certain value is a genius. Others feel that IQ tests measure only a limited part of a persons total intelligence. Some believe high test scores have little to do with real genius. Genius is a big-picture concept. Most scientific and medical inquiri
10、es, on the other band, examine de tails. A concept as subjective as genius isnt easy to quantify, analyze or study. So, when exploring how geniuses work, its a good idea to start by defining precisely what a genius is. For the purpose of this article, a genius isnt simply someone with an exceptional
11、ly high IQ. Instead, a genius is an extraordinarily intelligent person who breaks new ground with discoveries, inventions or works of art. Usually, a genius work changes the way people view the world or the field in which the work took place. In other words, a genius must be both intelligent and abl
12、e to use that intelligence in a productive or impressive way. Genius and the Brain The brain regulates the bodys organ systems. When a person moves around, it sends impulses along the nerves and tells the muscles what to do. The brain controls the senses of smell, taste, touch, sight and hearing, an
13、d the person experiences and processes emotions using his brain, On top of all that, the brain allows people to think, analyze information and solve problems. But how does it make someone smart? Scientists havent figured out exactly how all the gray matter in the brain works, but they do have an ide
14、a of which part lets people think. The cerebral cortex (大脑皮层 ), which is the outermost part of the brain, is where thought and reasoning happen. These are the brains higher function- the lower functions, which relate to basic survival, take place deeper in the brain. The cerebral cortex is the large
15、st part of the brain, and its full of wrinkles and folds that allow it to fit in the skull. If an adult humans cerebral cortex is removed and stretched out, it would be about as large as a few pages of a newspaper. Its divided into several lobes(裂片 ), and different regions within these lobes handle
16、specific tasks related to how people think. In spite of all those challenges to see the brain inside and how it works, researchers have figured out a few things about how the brain affects intelligence. A 2004 study at the University of California, Irvine found that the volume of gray matter in part
17、s of the cerebral cortex had a greater impact on intelligence than the brains total volume. The findings suggest that the physical attributes of many parts of the brain-rather than a centralized “intelligence center“ -determine how smart a person is. Genius and Intelligence Like genius, intelligence
18、 can be difficult to quantify. Psychologists and neuroscientists study intelligence extensively. An entire field of study, known as psychometrics, is devoted to studying and measuring intelligence. But even within that field, experts dont always agree on exactly what it is or how best to analyze it.
19、 And while intelligence is central to genius, not all geniuses score well on intelligence tests or perform well in school. Intelligence testing has existed for thousands of years. The tests we know as IQ tests got their start near the end of the 19th century. Today, IQ tests generally measure a pers
20、ons memory as well as language, spatial and mathematical abilities. IQ tests are also standardized so that most people score between 90 and 110. When placed on a graph, the IQ test scores of a large group of people will generally resemble a bell curve, with most people scoring in the average range.
21、A common perception is that anyone scoring above a certain number-often 140-is automatically a genius. But in spite of the existence of high-IQ organizations, many scientists caution that there is no such thing as a genius-level IQ. Many educators and researchers feel that, in general, standardized
22、IQ tests do a good job of predicting how well a child will perform in school. Schools often use these tests to determine which children to place in gifted or special education classes. Most colleges and universities and some employers also use standardized tests as part of their application processe
23、s. Intelligence and Adjustment One of the stereotypes surrounding gifted children is that they have trouble fitting in at school. Several scientific studies suggest that the stereotype has a foundation in reality. A Purdue University study of 423 gifted students suggested that they were susceptible
24、to bullying. A 20-year study of gifted children ending in 1940 suggested that the trend of not fitting in continues into adulthood. The study used a test that measured both verbal intelligence and personal adjustment. People who scored above 140 in verbal intelligence generally had lower personal ad
25、justment scores. However, in spite of their prevalence, these tests are not foolproof. In general, some minorities and people with lower income levels tend to score lower than people from other racial and economic groups. Critics contend that this makes IQ tests invalid or unfair. Others argue that
26、they instead point out unfair ness and prejudice within a society. In addition, some researchers and theorists argue that the IQ test is too limiting and doesnt really give a full view of a persons intelligence. These researchers feel that intelligence is a combination of many factors. Creativity an
27、d Genius Geniuses like Einstein are also known for their creativity and productivity-and sometimes for their quirky behavior. Theres a big difference between being really smart and being a genius. While geniuses tend to be exceptionally intelligent, they also use imagination and creativity to invent
28、, discover or create something new within their field of interest. They break now ground rather than simply remembering or reciting existing information. The creativity of geniuses also relates to productivity and hard work. Sometimes, the most dramatic examples of genius involve people who produce
29、their best work at a very young age. However, not every genius produces exceptional work early in life the way Einstein and Mozart did. Some, like Ludwig yon Beethoven, do their best work later in life. We may never know precisely where creativity comes from, why some people use their creativity mor
30、e than others or why some people are most creative during specific times in their lives. We may not learn how one person ends up with the right balance of brainpower, intelligence and creativity to become a genius. But its clear that geniuses are central to advancements in science, technology and un
31、derstanding. Without geniuses, our understanding of mathematics, literature and music would be completely different. Concepts that we now take for granted, like gravity, planetary orbits and black holes, might still be undiscovered. 2 Who is the typical genius that started composing music when he wa
32、s 5 years old? （ A） Albert Einstein. （ B） Star Trek. （ C） Wolfgang Mozart. （ D） Isaac Newton. 3 Which is TRUE about IQ test according to the passage? （ A） People who has a higher IQ is a genius. （ B） IQ test measures a limited part of a persons intelligence. （ C） High test scores have little to do w
33、ith real genius. （ D） There is still a controversy on whether IQ test can tell all about the genius. 4 The genius mentioned here is someone not only with a high IQ but also _. （ A） has done something of great influence （ B） started his/her career at a young age （ C） has eccentric behavior （ D） has o
34、dd appearance 5 Which is the master of five kinds of senses for human being? （ A） The cerebral cortex. （ B） The brain. （ C） The nerves. （ D） The muscles. 6 The study found that the size of _ in the cerebral cortex plays an important role in intelligence. （ A） grey matter （ B） lobes （ C） nerves （ D）
35、cells 7 Within the _ field, psychologists have controversy on how best to measure and analyze intelligence. （ A） neurology （ B） psychology （ C） psychometrics （ D） not mentioned 8 On the graph of the IQ scores of a lot of people, the average range of the bell curve would he the score _. （ A） below 10
36、0 （ B） between 90 and 110 （ C） between 100 and 110 （ D） higher than 110 9 If a boy has a low IQ in a school, he would probably be sent to _. 10 Some researchers are net cement with IQ test because they think that intelligence is _. 11 Geniuses dont confine themselves to some known knowledge but tend
37、 to use _. 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 only once. After each question there will b
38、e 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 is eager to be accepted by the University. （ B） She is waiting to see if she could get the job from Coles. （ C） She is expecting to see if Cole would lend her some cash. （
39、D） She has no idea about whether she can afford the university tuition. （ A） See the campus dentist first. （ B） Touch something less sweet. （ C） Have a sound sleep right away. （ D） Not touch anything sweet. （ A） They were both busy doing their work. （ B） They waited for each other at different place
40、s. （ C） They went to the street corner at different times. （ D） The man went to the concert, but the woman didnt. （ A） She Should find a job. （ B） She should just stop worrying. （ C） She should be more realistic with her money. （ D） She should ask for more money from the loan office. （ A） He left hi
41、s camera at the airport. （ B） He enjoyed using his new camera. （ C） He lost his new camera on his trip. （ D） He left his camera in his friends car. （ A） Her diet is not effective. （ B） She has lost much weight. （ C） Her favorite food is banana. （ D） She has neither gained nor lost weight. （ A） Find
42、a quiet place to study. （ B） Change the conditions of his room. （ C） Find a more comfortable place to study. （ D） Avoid distractions while studying in his room. （ A） The election issue might need to be addressed immediately. （ B） Elections may need to be postponed, since only five have agreed to run
43、. （ C） They should wait for more nominations before calling a meeting. （ D） Put a stop to any more nominations until they have a meeting. （ A） One with large hard disc. （ B） One with a wide screen. （ C） One with large memory. （ D） One with pink color. （ A） $100. （ B） $200. （ C） $300. （ D） $ 350. （ A
44、） Because she cant afford it. （ B） Because nobody in her university use it. （ C） Because it has no Chinese writing program, （ D） Because she doesnt like its appearance. （ A） House-buyer and house-seller. （ B） House-buyer and realtor. （ C） Husband and wife. （ D） Friends. （ A） Because he likes do thin
45、gs by himself. （ B） Because he doesnt trust them. （ C） Because he has little time to contact with them. （ D） Because he will pay extra money to them. （ A） His realtor. （ B） His inspector. （ C） His friends. （ D） The woman. （ A） Because he wants to know some news. （ B） Because he wants to see the hous
46、e ads. （ C） Because he wants to find a job. （ D） Because he wants to please his wife. 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. After you hear a questio
47、n, you must choose the best answer from the four choices marked A, B, C and D. （ A） Because they need more protein than vegetables can supply. （ B） Because they cannot digest vegetables. （ C） Because they use more energy than adults. （ D） Because they cannot easily digest milk and milk products. （ A
48、） It preserves the vitamins. （ B） It breaks down the vitamins. （ C） It makes the meat easier to digest. （ D） It reduces the protein content. （ A） We should eat more meat than vegetables. （ B） We should eat more vegetables than meat. （ C） We should eat different kinds of vegetables. （ D） We should ea
49、t fruit, cereals, fish, meat and vegetables. （ A） The changes of life styles have no influence on business. （ B） Different people may have completely different life styles. （ C） Its doubtful what life styles are changing. （ D） Life styles of different people are the same. （ A） Forty hours. （ B） Less than forty hours. （ C） About seventy hours. （ D） Less than twenty-five hours. （ A） Changes in Life style have a strong influence on business. （ B） Baby goods make money easily. （ C） Business men are only
