What happens inside the skull of a soccer player who repeatedly heads a soccer ball? That question motivated a challenging new study of the brains of experienced players that has caused discussion and debate among soccer players, and some anxiety among those of us with soccer-playing children.
For the study, researchers at the Albert Einstein College of Medicine in New York selected 34 adults, men and women. All of the volunteers had played soccer since childhood and now competed year-round in adult soccer leagues. Each filled out a detailed questionnaire developed especially for this study to determine how many times they had headed a soccer ball in the previous year, as well as whether they had experienced any known concussions (脑震荡) in the past.
Then the players completed computerized tests of their memory and other learning skills and had their brains scanned, using a complicated new M.R.I. technique which can find structural changes in the brain that can’t be seen during most scans.
According to the data they presented at a Radiological Society of North America meeting last month, the researchers found that the players who had headed the ball more than about 1,100 times in the previous 12 months showed significant loss of white matter in parts of their brains involved with memory, attention and the processing of visual information, compared with players who had headed the ball fewer times.
This pattern of white matter loss is “similar to those seen in traumatic (外伤的) brain injury”, like that after a serious concussion, the researchers reported, even though only one of these players was reported to have ever experienced a concussion.
The players who had headed the ball about 1,100 times or more in the past year were also generally worse at recalling lists of words read to them, forgetting or fumbling the words far more often than players who had headed the ball less.The passage is most probably a______.
| A．news report | B．research report |
| C．story for soccer players | D．text for doctors |
In which way can we find the structural changes in the brain?
| A．Computerized test. | B．Questionnaire.. |
| C．Scanning. | D．M.R.I. technique. |
From the passage we can conclude that frequent heading may have_____.
| A．significant effect on brain | B．little effect on one’s brain |
| C．nothing to do with the brain injury | D．one’s memory improved |
The underlined word "fumbling" is closest in meaning to______.
| A．remembering | B．misunderstanding |
| C．recalling | D．missing |
Santa Fe, the capital of New Mexico, U.S.A.,is in the central part of the state, on the Santa Fe River, which flows into the Rio Grande 35 kilometres west of the city. More than two thousand metres above sea level, it lies in the Sangre de Cristo Mountains with the Ortiz Mountains to the southeast.
Santa Fe was founded in 1609 by the Spanish (西班牙人)on an old Indian village.In 1680 the Indians seized the place but only held it for twelve years before the Spanish retook it. The city remained under Spanish rule until Mexico won its independence (独立) in 1821. From then on it was a Mexican city until 1846 when it was taken over by American troops.
With a population of 48,953, Santa Fe is now the second largest city in the state. Because of its sunny weather, rich history and surrounding mountains, it is a good place for holiday makers. Besides hunting and skating in the mountains people enjoy shopping in the Indian and Spanish shops, which brings a large income to the city every year. In summer there is an international opera (歌剧) season when operas are shown in a partly-roofed ,open-air theatre daily for people from all over the world.At present Santa Fe belongs to.
| A．India | B．Mexico | C．Spain(西班牙) | D．the United States |
Which of the drawings below gives an idea of what Santa Fe is like?
RG="the" Rio Grande SFR="the" Santa Fe River OM="the" Ortiz Mountains
Santa Fe was under the rule of the Mexicans in.
| A．1675 | B．1695 | C．1816 | D．1833 |
The people who held Santa Fe for the longest period in history were the .
| A．Spanish | B．Indians | C．Mexicans | D．Americans |
What is of special interest to people who visit Santa Fe in summer?
| A．Hunting. | B．Fishing. | C．Watching operas. | D．Doing shopping. |
Santa Fe is best described (描述) as a .
| A．trade centre | B．holiday centre | C．home for all nations | D．seaport city |
One of the reasons for visitors to come to Santa Fe is that it.
| A．has fine weather | B．is the state capital |
| C．has historical monuments | D．is on the Santa Fe River |
If English means endless new words, difficult grammar and sometimes strange pronunciation, you are wrong. Haven't you noticed that you have become smarter since you started to learn a language?
According to a new study by a British university, learning a second language can lead to an increase in your brain power. Researchers found that learning other languages changes grey matter. This is the area of the brain which processes information. It is similar to the way that exercise builds muscles.
The study also found the effect is greater, the younger people learn a second language.
A team led by Dr Andrea Mechelli, from University College London, took a group of Britons who only spoke English. They were compared with a group of "early bilinguals" who had learnt a second language before the age of five, as well as a number of later learners.
Scans showed that grey matter density (密度) in the brain was greater in bilinguals than in people without a second language. But the longer a person waited before mastering a new language, the smaller the difference.
"Our findings suggest that the structure of the brain is changed by the experience of learning a second language," said the scientists.
It means that the change itself increases the ability to learn.
Professor Dylan Vaughan Jones of the University of Wales, has researched the link between bilingualism and maths skills. "Having two languages gives you two windows on the world and makes the brain more flexible (灵活的),"he said. "You are actually going beyond language and have a better understanding of different ideas."
The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of two and 34. Reading, writing, and comprehension were all tested. The results showed that the younger they started to learn, the better. "Studying a language means you get an entrance to another world," explained the scientists.The main subject talked about in this passage is ______.
| A．science on learning a second language |
| B．man’s ability of learning a second language |
| C．1anguage can help brain power |
| D．1anguage learning and maths study |
In the second paragraph, the writer mentions “exercise” in order to ______.
| A．say language is also a kind of physical labor |
| B．prove that one needs more practice when he (she) is learning a language |
| C．to show the importance of using the language when you learn the language |
| D．make people believe language learning helps grey matter work well |
We may know from the scientific findings that ______.
| A．the earlier you start to learn a second language, the higher the grey matter density is |
| B．there is no difference between a later second language learner and one who doesn't know a second language |
| C．the experience of learning a second language has bad effect on people's brain |
| D．the ability of learning a second language is changing all the time |
The underlined word “bilingual'’ probably means ______.
| A．a researcher on language learning |
| B．a person who is good at learning foreign languages |
| C．a person who can speak two languages |
| D．an active language learner |
Who says Americans worship the almighty (全能的) dollar? It's not true. Having enough free time is more important to most Americans than being rich, according to a new survey.
Only 13 percent of more than 2,400 people questioned in the telephone survey ranked being wealthy as most important to them, while 67 percent ranked free time as their top priority (优先考虑的事), higher than having a successful career, getting married, and having children. "Everyone wants free time to do the things they want to do, young, middle-aged or old," said Richard Morin, of the Pew Social ~ Demographic Trends Project, which conducted the survey. "So our desire to play unites us."
The survey also showed that people who were educated in university valued career success over wealth, so did middle-aged people. Not surprisingly, those who didn't have money, ranked wealth very highly. This included minorities, first generation Americans and less educated people. The survey also revealed that a disproportionate (不成比例的) number of people under the age of 30 and retired people in the group made $ 20,000 or less a year. But the emphasis on wealth lessens with age, with younger people putting value on it but hardly any seniors. "It just diminishes (减弱) with time as the reality sets in that you would never be rich," Morin said. "But also, as for old people the reality sets in that you don't have to be rich to lead a very comfortable and fulfilling life. "
While wealth was not at the top of people's list of priorities, 43 percent still said it was somewhat important.The survey showed that the majority of American people ranked ______ as the most important.
| A．wealth | B．a successful career | C．marriage | D．free time |
Who cares least for wealth, according to the passage?
| A．Young people | B．First generation Americans |
| C．Old people | D．Less-educated people |
According to the survey, what did middle-aged people regard as more important?
| A．success in career | B．education level | C．wealth | D．comfort |
What is the belief of old people according to the third paragraph?
| A．Wealth is as important to the old as health. |
| B．One needs to put money away for his retired life. |
| C．One doesn't have to be rich to live a satisfying life. |
| D．One would never get rich until he retires. |
If you were to walk up to Arthur Bonnet and say, "Hey, Butterfly Man," his face would break into a smile. The title suits him. And he loves it.
Arthur Bonnet works with the Palos Verdes blue butterfly, once thought to have died out. Today the butterfly is coming back thanks to him. But years ago if you'd told him this was what he'd be doing someday, he would have laughed, "You're crazy." As a boy, he used to be a little tough guy on the streets". At age thirteen, he was caught by police stealing. At eighteen, he landed in prison for shooting a man.
"I knew it had hurt my mom," Bonner said after he got out of prison. "So I told myself I would not put my mom through that pain again."
One day he met Professor Mattoni, who was working to rebuild the habitat for an endangered butterfly called E1 Segundo blue.
"I saw the sign 'Butterfly Habitat' and asked, 'How can you have a habitat when the butterflies can just fly away?'" Bonner recalls. "Dr. Mattoni laughed and handed me a magnifying glass (放大镜) , "Look at the leaves. ' I could see all these caterpillars (蝴蝶的幼虫) on the plant. Dr Mattoni explained, 'Without the plant, there are no butterflies. '"
Weeks later, Bonner received a call from Dr. Mattoni, who told him there was a butterfly that needed help. That was how he met the Palos Verdes blue. Since then he's been working for four years to help bring the butterfly back. He grows astragals, the only plant the butterfly eats. He collects butterflies and brings them into a lab to lay eggs. Then he puts new butterflies into the habitat.
The butterfly's population, once almost zero, is now up to 900. For their work, Bonner and Dr. Mattoni received lots of awards. But for Bonnet, he earned something more: he turned his life around.
For six years now Bonnet has kept his promise to stay out of prison. While he’s bringing back the Palos Verdes blue, the butterfly has helped bring him back, too.When he was young, Arthur Bonner
| A．broke the law and ended up in prison |
| B．was fond of shooting and hurt his morn |
| C．often offered necessary help to other people |
| D．often caught butterflies and took them home |
Bonner came to know the Palos Verdes blue after he ______.
| A．found the butterfly had died out |
| B．won many prizes from his professor |
| C．met Dr. Mattoni, a professor of biology |
| D．collected butterflies and put them into a lab |
From the last sentence of the text, we learn that raising butterflies has ______
| A．made Bonner famous | B．changed Bonner's life |
| C．brought Bonner wealth | D．enriched Bonner's knowledge |
Which of the following would be the best title for the text?
| A．A Promise to Morn | B．A Man Saved by Butterflies |
| C．A Story of Butterflies | D．A Job Offered by Dr. Mattoni |
BEIJING --Seven prestigious universities in China announced Sunday that they would begin using the same independent exam -- besides the national one -- to test students hoping to gain entrance to them in 2011.
The seven are Peking University, Beihang University, Beijing Normal University, Nankai University, Fudan University, Xiamen University and Hong Kong University.
Students who want to gain entrance to any of the seven universities will only have to sit one independent exam, according to the joint announcement.
"This will help lighten the students' load, otherwise they must take several exams for different universities," said the announcement.
Passing the exam could result in more than one interview chance, giving the students more opportunities to choose their favorite universities.
China's college entrance exam system is undergoing reform as universities aim to select students based on independent criteria rather than just using the results of the national exam.
In 2003, Peking University and another 21 universities were allowed to pilot (试用) the reform by using their own criteria to independently select five percent of their students.
Now nearly 80 universities across the country have the right to select talented students based on their own exams.
Education experts regard universities selecting students according to independent examinations as conducive (有助的) to better understanding where the students' talents lie.
Although this may be the case, it has also created problems as students may sit many different exams as they often apply for a number of universities.
To relieve students from such pressures, the national education outline (2010--2020) released in July this year encourages high-level universities to group together to use the same exams.If students want to be admitted to the seven prestigious universities , they can ______。
| A．only pass the interview. |
| B．only take the national exam. |
| C．only take the independent exam. |
| D．either take the national exam or the take the independent exam. |
What's the purpose of students sitting one independent exam to gain entrance to the seven universities ?
| A．It can reduce students' load to take several exams. |
| B．The universities will have the same standard to test students. |
| C．There will be less trouble marking students' test papers. |
| D．It can avoid fierce competition among these universities. |
If students pass the independent exam , they will ______.
| A．take the national exam. |
| B．have one or more interview chances. |
| C．be admitted to one of the universities. |
| D．he trained to be adapted to universities life and studies. |
What is the advantage of universities selecting students according to independent examinations?
| A．Students needn't take the national exam. |
| B．Students' education cost can be lowered. |
| C．Students abilities and talents can be better found. |
| D．It can encourage middle schools to recommend more qualified students. |