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What happens inside the skull of a soccer player when 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 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 researchers 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 |
What is likely to be the cause of memory loss?
| A．Playing soccer frequently | B．Tests of their memory |
| C．White matter loss | D．Information processing |
The underlined word “fumbling” is closest in meaning to ________?
| A．remembering | B．misunderstanding | C．recalling | D．missing |
Beijing, April 2----Starting from this year, the Beijing Municipal Health Bureau will begin to promote a home medical service. With this service a medical team which is made up of a doctor, a nurse and a medical health worker will be sent to some communities in the city. They will set up a medical filing recorder for every resident in community and publicize their contact information to them. If people in the community feel sick, they can consult their community doctor first. If community doctors cannot treat their illness, they will then be transferred to large hospitals. Liang Wan, deputy director of the Beijing Municipal Health Bureau, made the statement last Friday .
In addition ,the Beijing Municipal Health Bureau will set up some funds to train home medical service workers for families whose members suffer either from high blood pressure, diabetes,cerebral apoplexy , or coronary heart disease . The home medical service workers will remind patients to take pills on time and lead the patients to follow some health tips in their daily life. They will also learn some practical knowledge to save patients in case of an emergency .
The work will first begin in the medical service room in the 25 community centers and spread to all communities in Beijing. The disease prevention and control centers at various counties and districts in Beijing will be responsible for teaching community doctors and giving home medical service lectures, or advice . These workers will not be able to work until they pass related examination and obtain the work certificates. It is expected that by the end of this year, there will be 10000 home medical service workers in Beijing .Where does a person go to see first if he gets sick according to the passage ?
| A．The community clinics. | B．Large hospital . |
| C．Private clinic . | D．Small hospital . |
Which of the following is NOT true according to the passage?
| A．The medical team which is made up of a doctor, a nurse and a medical health worker will set up a medical filing record for every resident. |
| B．The home medical service workers not only give some healthy suggestions to the patients, but also learn practical knowledge about first aid. |
| C．Some funds will be provided by Beijing Municipal Health Bureau for home medical service training. |
| D．The government aims to offer the home medical service for free. |
If you want to work as a home medical worker, you need to _____________.
| A．receive the training about medical service. |
| B．pass related examinations. |
| C．obtain the work certificates. |
| D．All the above. |
What can we learn from the passage?
| A．All communities in Beijing have started home medical service. |
| B．People in Beijing will not easily get ill. |
| C．Medical service in Beijing will be promoted greatly in the future. |
| D．The other cities in China should learn from Beijing. |
One period of our lives when better results are demanded of us is, strangely enough, childhood． Despite being young we are expected to achieve good grades, stay out of trouble, make friends at school, do well on tests, perform chores at home and so on． It’s not easy．
The good news is that being likeable can help a child perform better． Likeable children enjoy many advantages, including the ability to cope（对付） more easily with stresses of growing up．
In her book Understanding Child Stress, Dr． Carolyn Leonard states that children who are likeable and optimistic are able to gain support from others． This leads to focus and resilience, the ability to recover from or adjust early to life stress; a child who has adequate emotional armor can continue down the path to success． Much research shows that resilience has enabled children to succeed in school, avoid drug abuse, and develop a healthy self-awareness．
Why does a likeable child more easily handle stress and do better in his or her life? Because likeability helps create what’s known as a positive feedback loop（回馈圈）． The positive feelings you want to see in other people are returned to you, creating constant encouragement and motivation to deal with the daily stress of life．
This feedback loop continues into adulthood． To return once again to the example of teaching, learning becomes easier with a likeable personality． Michael Delucchi of the University of Hawaii reviewed dozens of studies to determine if likeable teachers received good ratings because of their likeability or because they in fact taught well． Delucchi found that “Students who perceive（察觉） a teacher as likeable, in contrast to（比照） those who do not, may be more attentive to the information that the teacher delivers and they’ll work harder on assignments, and they will learn more．”
You may have noticed this pattern in your own life when you try to give some advice． The more positive your relationship with that person, the more he or she seems to listen, and the more you feel certain that that person has heard you and intends to act on your words．The writer implies in the first paragraph that __________．
| A．children are expected much than we usually think |
| B．life is not easy for every one of us |
| C．better education results in smarter children |
| D．to be a likable child is almost impossible |
According to Dr． Leonard, likeable children __________．
| A．can cope more easily with stress independently |
| B．know how to avoid trouble and unpleasant events |
| C．are always optimistic and ready to help those in need |
| D．can achieve more and understand themselves better |
The term “emotional armor” in paragraph 3 means __________．
| A．mental support from friends | B．mental support from adults |
| C．failures in life | D．ability to handle life stress |
The main purpose of the studies done by Michael Delucchi is to find __________．
| A．if a likeable teacher has a positive personality |
| B．if a likeable teacher draws more attention |
| C．how a teacher’s likeability gains popularity |
| D．how a likeable teacher’s teaching style is formed |
The passage aims at proving that __________．
| A．likeable people do better in life generally |
| B．likeable people do better in their childhood |
| C．social creatures enjoy more advantages |
| D．likeable people give better advice |
It was a Sunday morning, and I was in a terrible mood. Two of my friends had gone to the movies the night before and hadn’t invited me. I was in my room thinking of ways to make them sorry when my father came in. “Want to go for a ride, today, Beck? It’s a beautiful day.”
“No! Leave me alone!” Those were the last words I said to him that morning.
My friends called and invited me to go to the mall with them a few hours later. I forgot to be mad at them and went. I came home to find a note on the table. My mother put it where I would be sure to see it. “Dad has had an accident. Please meet us at Highland Park Hospital”.
When I reached the hospital, my mother came out and told me my father’s injuries were extensive. “Your father told the driver to leave him alone and just call 911, thank God! If he had moved Daddy, there’s no telling what might have happened. A broken rib (肋骨) might have pierced (穿透) a lung....”
My mother may have said more, but I didn’t hear. I didn’t hear anything except those terrible words: Leave me alone. My dad said them to save himself from being hurt more. How much had I hurt him when I hurled (愤慨地说出) those words at him earlier in the day?
It was several days later that he was finally able to have a conversation. I held his hand gently, afraid of hurting him.
“Daddy... I am so sorry....”
“It’s okay, sweetheart. I’ll be okay.”
“No,” I said, “I mean about what I said to you that day. You know, that morning?”
My father could no more tell a lie than he could fly. He looked at me and said, “Sweetheart, I don’t remember anything about that day, not before, during or after the accident. I remember kissing you goodnight the night before, though.” He managed a weak smile.
My English teacher once told me that words have immeasurable power. They can hurt or they can heal. And we all have the power to choose our words. I intend to do that very carefully from now on.The author was in bad mood that morning because ________.
| A．his father had a terrible accident |
| B．he couldn’t drive to the mall with his friends |
| C．his friends hadn’t invited him to the cinema |
| D．his father didn’t allow him to go out with his friends |
Why did the author say sorry to his father in the hospital?
| A．Because he didn’t go along with his father. |
| B．Because he was rude to his father that morning. |
| C．Because he failed to come earlier after the accident. |
| D．Because he couldn’t look after his father in the hospital. |
The reason why the author’s father said he forgot everything about that day is that ________.
| A．he had a poor memory |
| B．he didn’t want to forgive his son |
| C．he just wanted to comfort his son |
| D．he lost his memory after the accident |
What lesson did Beck learn from the matter?
| A．Don’t treat your parents badly |
| B．Don’t hurt others with rude words |
| C．Don’t move the injured in an accident |
| D．Don’t be angry with friends at small things |
Scientists who discovered a new way of generating electricity from water say they may have come across an alternative source of clean energy to rival wind and solar power.
The breakthrough, which scientists say is the first new way to generate electricity in 160 years, could lead to batteries that use water instead of poisonous substances.
The scientists made the discovery when they were investigating what happens when tap water is forced through extremely narrow glass tubes. Water squeezed down the tubes, each of which was narrower than a tenth the thickness of a human hair, generating a small electric current that ran the length of the tube. To produce a larger electric current, the team tried forcing water through a glass water filter(滤水器)that contained thousands of narrow channels lined up side by side. “When we took a syringe(注射器)of water and squeezed it through the filter, we got enough power to light a light bulb,” said Larry Kostiuk of the University of Alberta in Canada. “The harder you push the syringe, the more electric current you get.”
The current is produced because of an effect in the glass tubes. When they are filled with water, positively charged ions(阳离子)fixed in the tubes are washed away, leaving a slight negative charge on the glass surface. When water is then forced along the tube, the surface repels negatively charged ions in the water while positively charged ions are attracted down the tube. The result is a net flow of positively charged ions that sets up an electric current.
According to Dr Kostiuk, no one has ever thought to use water to produce electricity in this way. “The last time someone came up with a way of generating electricity was Michael Faraday in 1839,” he said. “So this is the first new way of generating electricity in 160 years, which is why we are so excited about it.”
Dr Kostiuk says water batteries might one day be used to power mobile phones and calculators, but admitted that the engineering challenges might make other applications more realistic. “You’d need to be sure it wouldn’t leak, and you’d need to make sure it wouldn’t freeze,” he said.
More likely would be to install the electricity-generating devices where water is already being pumped, such as at city water filtration sites, he said. “It could compete with wind and solar power,” he added.What does the passage mainly want to tell us about?
| A．A kind of solar power discovered by scientists. |
| B．A kind of new energy source found in tap water. |
| C．The breakthrough to generate electricity 160 yeas ago. |
| D．A kind of new battery invented without poisonous substances. |
The underlined word “repels” in Paragraph 4 is closest in meaning to _________.
| A．rejects | B．identifies | C．attracts | D．rebels |
Why were the scientists extremely happy about their new discovery?
| A．They were the first to find a new way to produce electricity. |
| B．They could make an electric current to light a light bulb. |
| C．Their discovery could be used to invent water batteries. |
| D．Their discovery was made 160 years earlier than Faraday’s. |
What can we infer about potential water batteries?
| A．They must be used to power mobile phones and calculators. |
| B．They have some possible disadvantages like water leaking. |
| C．They would be needed greatly at city water filtration sites. |
| D．They would be better than wind and solar power. |
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