D
11-year-old Courtney Thompson was so passionate about gymnastics that she would practice five hours a day until her arms were sore and her elbows swollen．She rarely complained about her tough schedule，and for good reason．Courtney was ranked the best gymnast in the State for her age，and she dreamed of going to the Olympics．But on January 12th，2005，while practicing a routine exercise，she felt an unbearable pain in the left elbow．The medical examination then revealed a severe injury，resulting in an immediate surgery and a slow，painful recovery．
What happened to Courtney Thompson is a red flag in America's growing epidemic of youth sports injuries．Across the country，younger and younger athletes are injuring themselves in the pursuit of sports achievement．The U．S．Consumer Product Safety Commission reports that 2.8 million Americans aged 5 through 24 received medical treatment for a sports-related or recreation-related injury in 2003．Severe injuries that used to be limited to professionals are now showing up in high school and even junior high athletes．
There are many reasons behind the outbreak in sports injuries，hut most experts agree on one：the extreme culture of organized youth sports．Gone are the days when children played a variety of games on playgrounds．Child kidnapping and street crime have ended casual neighborhood athletics in many places，leading parents to enroll their children in organized sports under the watchful， though demanding，eyes of adult volunteers and coaches．And movies like Friday Night Lights glorify the thrill of victory for young athletes with single-minded dedication to athletic achievement.
From high school gyms to county hall fields，41 million children younger than 19 participated in organized youth sports in 2005，according to the latest research by the National Council of Youth Sports. The figure represents a 25 percent increase since 1997．
Parental involvement 1”youth sports has also made childhood games less about having fun and more about training and competing for the top spot．1anding a college scholarship or launching a promising career Hoping to nurture the next Michelle Kwan or Apolo Ohno，some parents guide their children into specializing in one sport But the repetitive training required to master a sport places enormous stresses on hones and muscles that are still developing.
67．The passage is mainly about_________
A．children’s participation in organized sports
B．the main causes of the youth sports injuries
C．the way to train children in organized sports
D．the common occurrence of youth sports injuries
68．The underlined part “Fed flag” in the second paragraph most probably means“_______”．
A．warning              B．problem      C. symbol       D．mark
69．Why is the number of sports injuries among children in America growing?
A．Because of their increasing fondness for sports．
B．Because children are not professional enough fur sports
C．Because more children are seeking for sports achievements．
D．Because of the involvement of the parents and more organized sports
70． We can learn from the passage that __________     
A．about 10.25 million youngsters participated in organized sports in 1997
B．parents give limited chances for children to choose their sports
C．serious injuries often happened to young students in the past
D．courtney Thompson will never become a famous gymnast

　A few months ago, it wasn't unusual for 47-year-old Carla Toebe to spend 15 hours per day online. She'd wake up early, turn on her laptop and chat on Internet dating sites and instant-messaging programs – leaving her bed for only brief breaks. Her household bills piled up, along with the dishes and dirty laundry, but it took constant complaints from her four daughters before she realized she had a problem.
　　"I was starting to feel like my whole world was falling apart – kind of slipping into a depression," said Carla. "I knew that if I didn't get off the dating sites, I'd just keep going," detaching (使脱离) herself further from the outside world.
　　Toebe's conclusion: She felt like she was "addicted" to the Internet. She's not alone.
　　Concern about excessive Internet use isn't new. As far back as 1995, articles in medical journals and the establishment of a Pennsylvania treatment center for overusers aroused interest in the subject. But as reliance on the Web grows, there are signs that the question is getting more serious attention: Last month, a study published in CNS Spectrums claimed to be the first large-scale look at Internet overuse. The American Psychiatric Association may also consider listing Internet addiction in the next edition. And scores of online discussion boards have popped up, on which people discuss negative experiences tied to too much time on the Web.
The new CNS Spectrums study was based on results of a nationwide telephone survey of more than 2,500 adults. Like the latest survey, this one was conducted by Stanford University researchers. About 6% of respondents reported that "their relationships suffered because of excessive Internet use." About 9% attempted to conceal "nonessential Internet use," and nearly 4% reported feeling " still occupied by the Internet when offline."
　　"The Internet problem is still in its early stage," said Maressa Orzack, a Harvard University professor. No single online activity is to blame for excessive use, he said. "They're online in chat rooms, checking e-mail, or writing blogs. The problem is not limited to porn (色情) or gambling websites.”
　　“Excessive Internet use should be defined not by the number of hours spent online but in terms of losses.”said Maressa Orzack. "If it's a loss where you're not getting to work, and family relationships are breaking down as a result, then it's too much."
　　Since the early 1990s, several clinics have been established in the U. S. to treat heavy Internet users. They include the Center for Internet Addiction Recovery and the Center for Internet Behavior.
　　The website for Orzack's center lists the following among the psychological symptoms of computer addiction:
　　● Having a sense of happiness or excitement while at the computer.
　　● Longing for more and more time at the computer.
　　● Neglect of family and friends.
　　● Feeling empty, depremssed or irritable when not at the computer.
　　● Lying to employers and family about activities.
　　● Inability to stop the activity.
　　● Problems with school or job.
　　Physical symptoms listed include dry eyes, backaches, skipping meals, poor personal hygiene (卫生) and sleep disturbances.
　　“People who struggle with Internet overuse maybe depressed or have other mood disorders.” Orzack said. When she discusses Internet habits with her patients, they often report that being online offers a "sense of belonging, and escape, excitement and fun," she said. “Some people say relief…because they find themselves so relaxed.”
　　Some parts of the Internet seem to draw people in more than others. Internet gamers spend countless hours competing in games against people from all over the world. One such game, called World of Warcraft, is cited on many sites by posters complaining of a "gaming addiction."
　　Andrew Heidrich, an education network administrator from Sacramento, plays World of Warcraft for about two to four hours every other night, but that's nothing compared with the 40 to 60 hours a week he spent playing online games when he was in college. He cut back only after a full-scale family intervention (干预), in which relatives told him he'd gained weight.
　　“There's this whole culture of competition that sucks people in with online gaming, ”said Heidrich, now a father of two. People do it at the expense of everything that was a constant in their lives." Heidrich now visits websites that discuss gaming addiction regularly “to remind myself to keep my love for online games in check”.
　　Toebe also regularly visits a site where posters discuss Internet overuse. In August, when she first realized she had a problem, she posted a message on a Yahoo Internet addiction group with the subject line:“I have an Internet Addiction.”
　　“I'm self-employed and need the Internet for my work, but I'm failing to accomplish my work, to take care of my home, to give attention to my children,”she wrote in a message sent to the group. “I have no money or insurance to get professional help; I can't even pay my loan and face losing everything.”
　　Since then, Toebe said, she has kept her promise to herself to cut back on her Internet use. "I have a boyfriend now, and I'm not interested in online dating," she said by phone last week. "It's a lot better now."
【小题1】 What eventually made Carla Toebe realize she was spending too much time on the Internet?

Space travel is definitely bad for astronauts’ bones, reducing their bone density(密度) after only a month of weightlessness, according to French research published on Friday.
Laurence Vico and his fellow workers at St Etienne University called for more research into the effects of microgravity, after their study of 15 astronauts from the Russian MIR station showed bone loss continued throughout space flights.
“Bone loss was especially striking in four astronauts, ” the scientists reported in the Lancet Medical Journal.
They measured the bone mineral density (BMD) of bones in the forearm(前臂) and lower leg of the astronauts who had spent one to six months in space.
The BMD loss was significant in the tibia(胫骨) of the lower leg, a weight-bearing bone, but barely changed in the radius(桡骨) of the forearm. “Our results indicate the need to investigate not only different bones, but also different areas of the same bone since not all sites of the skeleton (骨架) are similarly affected by space conditions, ” they added.
Without gravity the body isn’t bearing any weight so there is no need for calcium (钙) which makes bones strong, and it becomes empty into the bloodstream.
The research team suggested in future scientists should try to determine if the loss of bone density was only on weight-bearing bones on longer flights, also the possible recovery after returning to Earth.
【小题1】French scientists did their research on Russian astronauts, because _______.

B
　　Fever has usually been regarded as a threat to health.However,no one has actually proved that fever is dangerous.This fact attracted the attention of Matthew J.Kluger.Imagining that fever might not be as harmful as it had been supposed,Kluger set up a series of experiments with lizards(蜥蜴).
　　What Kluger and his team did his team did in their first experiment was simple.They put some lizards in a sand-box,one end of which was heated to 44℃,while the other was at a room temperature.It was found that the lizards moved form one part of the box to the other in order to keep a constant temperature of about 38℃.Having shown that normal lizards regulate(调节) their own temperature,Kuger,in a second experiment,then set out to show that lizards,like most other animals,develop fever when infected.This was done by making lizards infected with bacteria (细菌) that were known to cause disease.As the team expected,the infected lizards remained longer in the heated part of the box,until they had raised their body temperatures to two or three degrees above normal.In other words,the sick lizards gave themselves fever.
　　In a third experiment,the team observed the effect of temperature on the survival of the lizards.One group of infected lizards was given a fever - suppressing(退烧) drug.The other group was given no drug and ran a fever,that is to say,they kept a highter temperature for four or five days before seeking a cooler environment.The results were impressive.Of those which raised their body temperature,all but one remained alive.Of those given the fever - suppressing drug,more than half died.Similar results have since been produced in other animals.For example,infeced fish swim to warmer water,and will die if not allowed to do so.
　　An important conclusion can be drawn from these experiments.As Kluger points out,lizards have been on earth for hundreds of millions of years.It is reasonable to suppose that a response that is so old has been kept by nature for some purpose.It would appear, therefore, that fever does not make disease worse.Rather it its part of the mechanism(机能) by which infection is controlled.
　　60.In his experiments,Kluger was hoping to prove that fever ________.
　　　A.is not harmful to lizards
　　　B.is not necessarily bad
　　　C.is necessary for both humans and animals
　　　D.has the same effect on humans and animals
　　61.The lizards put in the sand - box in the first experiment _____.
　　　A.had a fever B.were not sick C.recovered from disease D.died of heat
　　62.In the third experiment,the lizards given a fever - suppressing drug died because _____.
　　　A.they had no more fever that they needed
　　　B.they were normal ones and had no fever
　　　C.the drug had no iffect on sick lizards
　　　D.the drug made their body temperature too low
　　63.How would you understand the underlined words"a response" in the last paragraph?
　　　A.Gause of disease. B.Recovery from disease.
　　　C.Relationship between living D.Natural defense in the body against disease.

One afternoon I toured an art museum while waiting for my husband to finish a business meeting. I was looking forward to a quiet view of the wonderful works..
A young couple viewing the paintings ahead of me chatted nonstop between themselves. I watched them a moment and decided she was doing all the talking. I admired his patience for tolerating her constant words. Disturbed by their noise, I moved on.
I encountered them several times as I moved through the various rooms of art. Each time I heard her constant talking, I moved away quickly.
I was standing at the counter of the museum gift store doing some shopping when the couple approached the exit. Before they left, the man reached into his pocket and pulled out a white object. He turned it into a long cane (手杖) and then tapped his way into the coatroom to get his wife’s jacket.
“He’s a brave man,” the clerk at the counter said, “Most of us would give up if we were blinded at such a young age. During his recovery, he made a promise his life wouldn’t change. So, as before, he and his wife come in whenever there’s a new art show.”
“But what does he get out of the art?” I asked, “He can’t see.”
“Can’t see! You’re wrong. He sees a lot. More than you or I do,” the clerk said, “His wife describes each painting so he can see it in his head.”
I learned something about patience, courage and love that day. I saw the patience of a young wife describing paintings to a person without sight and the courage of a husband who would not allow blindness to change his life.
And I saw the love shared by two people as I watched this couple walk away arm in arm.
【小题1】Which of the following statements is true?