“Enough” with the multivitamins already. That’s the message from experts behind three new studies that tackled an often debated question: Do daily multivitamins多种维生素make you healthier?
“We believe that the case is closed - supplementing(补充) the diet of well-nourished adults with (most) mineral or vitamin supplements has no clear benefit and might even be harmful,” concluded the authors of the editorial summarizing the new research papers. They urge consumers to not ‘waste’ their money on multivitamins. “The ‘stop wasting your money’ means that perhaps you’re spending money on things that won’t protect you long term,” editorial co-author, Dr. Edgar Miller said, “What will protect you is if you spend the money on fruits, vegetables, nuts, beans, low fat dairy, and things like that. Exercising would probably be a better use of the money.”
The strong message was based on a review of the findings from three studies that tracked multivitamins link to cancer protection, heart health, and brain and cognitive(认知的) measures. The first study looked at vitamin supplementation’s role in preventing chronic(慢性的) disease. The next study looked at whether long-term use of multivitamins would have any effect on slowing cognitive decline. The third study looked specifically at multivitamins and minerals role in preventing heart attack. “The three studies found no difference in rates of chronic disease, heart attack and the need for hospitalization between vitamin-takers and placebo(安慰剂)-takers.” Dr. Edgar Miller stated.
One expert agreed some nutrient-deficient people may still benefit from multivitamins. “There might be an argument to continue taking a multi(vitamin) to replace or supplement your not healthy diet,” Dr. Edgar Miller added. He also notes that vitamins can benefit people with celiac disease and those who are pregnant.This text is likely to be selected from a book of .
| A．medicine | B．education | C．food | D．business |
Which of the following is NOT Dr. Edgar Miller’s opinion according to the passage?
| A．Vitamins should not be used for chronic disease prevention. Enough is enough. |
| B．Having a balanced diet and exercising would probably be a better way to keep healthy. |
| C．The three studies do not provide support for use of multivitamin supplements. |
| D．Taking vitamins to replace or supplement your healthy diet is necessary. |
What can be inferred from the text?
| A．Vitamin supplements have proved harmful to the health of adults. |
| B．Vitamin supplements are beneficial in certain conditions. |
| C．Nowadays taking vitamin supplements is common to most people. |
| D．Daily multivitamins will make you healthier. |
The author’s purpose of writing the text is most likely to___________. .
| A．persuade | B．describe | C．inform | D．instruct |
“Helping survivors (生还者) of the earthquake and killer waves in the Indian Ocean last week is a race against time” says Kofi Annan , the United Nations secretary-general .
The concern about offers of international aid is based on history. Since we are social beings, the quality of our lives depends in large measure on our interpersonal relationships. One strength of the human condition is our aim to give and receive support from one another under stressful surroundings. Social support consists of the exchange of resources among people based on their interpersonal ties.
Those of us with strong support systems appear betterable to deal with major life changes and daily problems. People with strong social ties live longer and have better health than those without such ties. Studies over a range of illnesses, from depression to heart disease, show that the presence of social support helps people prevent illness, and the absence of such support makes poor health more likely.
Social support cushions stress in a number of ways. First, friends, relatives, and co-workers may let us know that they value us. Our self-respect is strengthened when we are popular with others despite our faults and difficulties. Second, other people often provide us with informational support. They help us to notice and understand our problems and find solutions to them. Third, we typically find socialcompanionship supportive. Engaging in leisure-time activities with others helps us to meet our socialneeds while at the same time distracting(转移...注意力)us from our worries and troubles. Finally,other people may give us instrumental support: a financial aid, material resources, and needed services-- that reduces stress by helping us deal with our problems.
59. Research shows that people's physical and mental health _______.
A. depends on the social welfare (福利)systems which support them
B. has much to do with the amount of support they get from others
C. depends on their ability to deal with daily worries and troubles
D. is closely related to their strength for dealing with major changes in their lives
60. The underlined word" cushions" in Para.3 means _______.
A. adds up toB. does away with
C. reduce the effect of D. depends on
61. Helping a sick neighbor with some repair work is an example of _______.
A. instrumental support B. informational support
C. social companionship D. the strengthening of self-respect
62. Social companionship is very important because _______.
A. it helps strengthen our ties with relatives
B. it enables us to get rid of our faults and mistakes
C. it makes our leisure-time activities more enjoyable
D. it draws our attention away from our worries and troubles
第三部分：阅读理解（共20小题；每小题2分，满分40分）
阅读下列短文，从每题所给的 A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
GENEVA--- The use of stimulants (兴奋剂) or drugs is increasing and something must be done about it, the WHO (World Health Organization) said on Friday.
In the 1970s the international focus was on heroin. In the 1980s and the 1990s the focus was on cocaine. Now in the 21st century we are becoming frightened by the rapid increase in amphetamine--type stimulants, not only in the rich countries of the world but the whole world,” said the official of the WHO.
Amphetamines are often used by the workers, such as long-distance truck drivers, to increase endurance(耐久力) or delay sleep, the official said.
About 3 percent of the population of the world use amphetamine, experts said. In Britain, among young people between the ages of 16 and 19, fourteen percent of them have used amphetamine.
In Korea, Japan, Denmark, the Philippines and Australia , amphetamine are more widely used than heroin or cocaine, a reporter said. The problem is also widespread in the United States, Western and Eastern Europe.
56. How many kinds of drugs are mentioned in this passage ?
A. Four B. Three C. One D. Not clear
57. Why does the use of amphetamine-- type stimulants frighten us?
A. Because the use of it is rapidly increased in the whole world.
B. Because many teenagers in Britain have used it.
C. Because it is dangerous if drivers use it.
D. Because people nowadays don’t use heroin or cocaine but amphetamines.
58. What is the purpose of writing this article?
A. To introduce the problem of using amphetamine in America and Europe.
B. To explain why there are so many people in the world using amphetamine.
C. To tell the history of the use of amphetamine.
D. To pay much attention to the increasing problem of using drugs.
China may be the world's most populous country ,and it won the most gold medals at the 2008 Summer Olympics in Beijing. But its prowess at soccer is lamentable. China is ranked 84th in the sport's world standing.
Chinese are huge soccer fans, and hundreds of millions are expected to tune in to the World Cup, with all the matches broadcast live on public TV. But this time the Chinese don't have their own team to root for.
"Chinese have a reputation of being good at math, but they have trouble explaining why a population of 1.3 billion cannot produce a winning 11-member soccer team," said Xu Guoqi, a history professor at the University of Hong Kong. Journalists and soccer fans offer a number of reasons, most often money issues, politics, corruption（腐败）and culture, and sometimes a combination of the four.
Even though China now boasts wealthy companies and individuals who could sponsor（赞助） teams, there is little support as long as Chinese teams are perceived as perennial losers. "This is a very bad circle," Ma said. "No results, no money. No money, no results."
Few Chinese children are playing soccer. Some sports journalists and fans attribute the lack of interest partly to schools de-emphasizing sports in general and the lack of playing venues in the country's dense urban areas. "What can Chinese kids do?” said Fan Huiming, 61, a Chinese soccer fan who grew up watching matches at Beijing's Workers' Stadium, which was built in 1958 near his childhood home. "If they play soccer, the ball may fly directly into the glass of someone's home."
For young people, soccer has largely been eclipsed by basketball, thanks in part to Chinese NBA players who are treated like rock stars. Journalists and fans say NBA's aggressive campaign of marketing and merchandise in China has helped swell the popularity of basketball. By comparison, they noted that international soccer does not even have an office in China.
Rowan Simons, a Briton who came to China more than two decades ago and discovered he wasn't able to play weekend soccer, has been on a campaign to popularize the sport here. Simons said the main problem is that soccer elsewhere has traditionally started as a series of neighborhood clubs, but in China, "there's virtually no football at community level".
"Football in China can only succeed if it's a grass-roots activity organized by the people," he said. This time the Chinese don't have their own team to root for in the World Cup because__________.
| A．China is ranked 84th in soccer 's world standing. |
| B．they are angry about why China cannot produce a winning soccer team. |
| C．the Chinese huge soccer fans support other soccer teams. |
| D．the Chinese soccer team is not capable to go as far as the final part of the World Cup. |
Why are few Chinese children playing soccer?
A.No results, no money. No money, no results.
B.If the footballs fly directly into the glass of someone's home,they’ll be criticised.
C there is little support from wealthy companies and individuals sponsoring teams.
D.schools don’t pay much attention on sports and they lack playing venues in dense urban areas.The underlined word“eclipsed”in the six paragraph can be replaced by .
| A．occupied. | B．beaten. | C．led. | D．compared. |
According to Rowan,what can be inferred ?
| A．NBA players are more popular than soccer players in China. |
| B．The future of Chinese football is rather promising. |
| C．Chinese football should get into the life of ordinary people to survive. |
| D．Grass-roots Chinese football players can be popular . |
The idea for a science experiment can come from an unusual place. After watching a YouTube video of a dancing bird named Snowball, a scientist in Californina decided to study the ability of animals to keep the beat.
Bird lovers have long claimed that their pets have rhyhm, and there are many videos of dancing birds online. Until now, scientists have suspected that humans are the only animals that can accurately keep rhythm with music.
Thanks to Snowball, that scientific opinion is changing. Snowball is a cockatoo, a kind of parrot, and his favorite song is “Everybody” by the Backstreet Boys. When he hears the song, he moves his feet and rocks his body with the tempo, or pace of the music, as though he is the only bird member of the boy band.
Aniruddh Patel is a neuroscientist, or a scientist who studies how the brain and the nervous system contribute to learning, seeing and other mental abilities. He works at the Neurosciences Instiute in San Diego. After seeing Snowbaill’s dance online, Patel visited the cockatoo at the bird rescue facility he’s called home for two years. The scientist played “Everybody” for Snowball and also played versions of the song that were sped up or slowed down. Sometimes, Snowball danced too fast or too slowly. Often, when there was a change in tempo, Snowball adjusted his dancing to match the rhythm. In other experiments, scientists have observed the same abilities in preschool children.
Patel isn’t the only scientist who has studied Snowball’s moves. Adena Schachner, who studies psychology at Harvard University, also wanted to know more about the dancing bird. Schachner’s team played different musical pieces for Snowball and a parrot named Alex, as well as eight human volunteers. The scientists observed that the birds and the humans kept time to the music with about the same accuracy.
Schachner and her team watched thousands of YouTube videos of different animals moving to music. Not all the animals could dance, however. From watching the videos, the scientists observed that only animals that imitate sounds, including 14 parrot species and Asian elephants, accurately moved in time to music.The underlined words “that scientific opinion” in the third paragraph refers to the theory that .
| A．birds like Snowball have the ability to keep the beat |
| B．humans are the only animals that can accurately keep rhythm with music |
| C．the brain and the nervous system contribute to some mental abilities |
| D．bird pets can have their special rhythm under human’s instruction |
From the fourth paragraph we may know that.
| A．Patel is the only scientist who has studied Snowball’s moves. |
| B．Snowball is able to adjust his dandcing to match the rhythm. |
| C．Snowball cannot dance to the versions of the song Everybody. |
| D．it is the brain and the nervous system that control the mental abilities. |
The idea of studying animals’ ability to keep the beat comes from .
| A．bird lovers’ discovery | B．humans musical sense |
| C．the same abilities in children | D．videos of dancing birds |
According to the scientists, Snowball’s ability to dance to music is probably related to the fact that .
| A．it is the only bird member of thd Backstreet Boys band |
| B．it has the ability to imitate sounds |
| C．it is a kind of dancing parrot |
| D．it has the same abilities as preschool children |
Despite all the reports of Internet security attacks over the years, including the recent ones on Google’s e-mail service, many people have reacted to the break-ins with a shrug (耸肩).
Mr. Shulman and his company examined a list of 32 million passwords that an unknown hacker（黑客） stole last month from Rock You, a company that makes software for users of social networking sites like Facebook and MySpace. The list was briefly posted on the Web, and hackers and security researchers downloaded it.
The list provided an unusually detailed window into computer users’ password habits. Typically, only government agencies like the F.B.I. or the National Security Agency have had access to such a large password list.
Some Web sites try to keep back the attackers by freezing an account for a certain period of time if too many incorrect passwords are typed. But experts say that the hackers simply learn to trick the system, by making guesses at an acceptable rate, for instance.
To improve security, some Wed sites are forcing users to mix letters,numbers even symbols in their passwords. Others, like Twitter, prevent people from picking common passwords.
Still, researchers say, social networking and entertainment Web sites often try to make life simpler for their users and are unwilling to put too many controls in place.
Even commercial sites like eBay must weigh the consequences of freezing accounts, since a hacker could, say, try to win an auction（拍卖） by freezing the accounts of other potential buyers.
But owing to the reality of our overcrowded brains, the experts suggest that everyone choose at least two different passwords— a complex one for Web sites where security is vital, such as banks and e-mail, and a simpler one for less risky places, such as social networking and entertainment sites.
Mr. Moss relies on passwords at least 12 characters long, figuring that those make him a more difficult target than the millions of people who choose five-and six-character passwords.
“It’s like the joke where the hikers run into a bear in the forest, and the hiker that survives is the one who outruns his companions,” Mr. Moss said. “You just want to run that bit faster.”The underlined sentence “Many people have reacted to the break-ins with a shrug” shows that many people .
| A．don’t take seriously the hacker’s break-ins |
| B．are worried and frightened at the hacker’s break-ins |
| C．don’t know what to do with the hacker’s attacks |
| D．are eager to get helps from the experts |
According to the passage, which of the following web sites needs a more complex password?
| A．A social web site. | B．An entertainment web site. |
| C．A commercial web site. | D．A game web site. |
The Internet users are advised to in order to keep back the hackers.
| A．mix letters, numbers and symbols as well |
| B．choose passwords with at least 12 characters |
| C．choose passwords with 5 or 6 characters |
| D．choose at least two different passwords |
Which would be the best title for the passage?
| A．Password, good luck or risk! | B．Popular Passwords, High Risk! |
| C．Clever Hackers, Stupid Netizens. | D．Hacker,the Enemy of Internet Security. |