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题型:阅读理解-阅读单选 难度:0.65 引用次数:46 题号:17160323

How does a person become an Olympic champion—someone capable of winning the gold? In reality, a combination of biological, environmental, and psychological factors, as well as training and practice, all go into making a super athlete.

Perhaps the most important factor involved in becoming an elite athlete is genetics. Most Olympic competitors are equipped with certain physical characteristics that differentiate them from the average person. Take an elite athlete’s muscles, for example. In most human skeletal muscles (the ones that make your body move), there are fast-twitch fibers and slow-twitch fibers. Fast-twitch fibers help us move quickly. Olympic weightlifters, for example, have a large number of fast-twitch fibers in their muscles—many more than the average person. These allow them to lift hundreds of kilos from the ground and over their heads in seconds. Surprisingly, a large, muscular body is not the main requirement to do well in this sport. It is more important to have a large number of fast-twitch fibers in the muscles.

The legs of an elite marathon runner, on the other hand, might contain up to 90 percent slow-twitch muscle fibers. These generate energy efficiently and enable an athlete to control fatigue and keep moving for a longer period of time. When we exercise long or hard, it’s common to experience tiredness, muscle pain, and difficulty breathing. These feelings are caused when the muscles produce high amounts of lactate(乳酸) and can’t remove it quickly enough. Athletes with many slow-twitch muscle fibers seem to be able to clear the lactate from their muscles faster as they move. Thus, the average runner might start to feel discomfort halfway into a race. A trained Olympic athlete, however, might not feel pain until much later in the competition.

For some Olympic competitors, size is important. Most male champion swimmers are 180cm or taller, allowing them to reach longer and swim faster. For both male and female gymnasts, though, a smaller size and body weight mean they can move with greater ease, and are less likely to suffer damage when landing on the floor from a height of up to 4.5 meters.

Some athletes’ abilities are naturally enhanced by their environment. Those raised at high altitudes in countries such as Kenya, Ethiopia, and Morocco have blood that is rich in hemoglobin(血红素). Large amounts of hemoglobin carry oxygen around the body faster, enabling these athletes to run better. Cultural factors also help some athletes do well at certain sports. Tegla Loroupe, a young woman from northern Kenya, has won several marathons. She attributes some of her success to her country’s altitude (she trains at about 2,400 meters) and some to her cultural background. As a child, she had to run ten kilometers to school every day. “I’d be punished if I was late,” she says.

Although genetics, environment, and even culture play a part in becoming an elite athlete, training and practice are needed to succeed. Marathon runners may be able to control fatigue and keep moving for long periods of time, but they must train to reach and maintain their goals. Weightlifters and gymnasts perfect their skills by repeating the same motions again and again until they are automatic. Greg Lougains, winner of four Olympic diving gold medals, says divers must train the same way to be successful: “You have less than three seconds from takeoff until you hit the water, so it has to be reflex. You have to repeat the divers hundreds, maybe thousands, of times.” Training this way requires an athlete to be not only physically fit but psychologically healthy as well. “They have to be,” says Sean McCann, a sports psychologist at the Olympic Training Center in the U.S. “otherwise, they couldn’t handle the training loads we put on them. Athletes have to be good at setting goals, generating energy when they need it, and managing anxiety.”

How do athletes adjust to such intense pressure? Lougains explains how he learned to control his anxiety during a competition: “Most divers think too much…,” he says. “They’re too much in their heads. What worked for me was humor. I remember thinking about what my mother would say if she saw me do a bad dive. She’d probably just compliment me on the beautiful splash.”

1. What is this article mainly about?
A.Factors that make someone a super athlete.
B.The different muscle types of super athlete.
C.The size of a super athlete.
D.How to qualify for the Olympics.
2. The underlined word more in paragraph 2 refers to ________.
A.MusclesB.Average people
C.Olympic weightliftersD.Fast-twitch fibers
3. What advantage do athletes from high-altitude countries have?
A.A strong sense of culture.
B.More muscles in their legs.
C.Hemoglobin-rich blood.
D.Lower amounts of lactate in their muscles.
4. What statement would diver Greg Lougains probably agree with?
A.A professional athlete should never feel anxiety.
B.Athletes cannot perform well unless they are under pressure.
C.It’s key to practice and train hard, but try not to take things too seriously.
D.It’s important to joke around with your teammates before you perform any sport.
【知识点】 体育健身 说明文

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【推荐1】Sports day! These two words can inspire both joy and terror in the hearts of students everywhere. For many, sports day can be a great day of fun and the chance to bag a prize or two.     1    

Today, more and more schools have recognized the importance of exercise.     2     They hope that by making sports days less competitive, children of all abilities will be motivated to take part without fear of losing. Exercise and fitness is important for everyone, no matter how good at sport you are.     3    

However, some people feel that it’s important that sport has winners and that learning to lose is just as important as learning how to win.     4     Particularly, on a sports day which is your chance to really prove yourself!

There are lots of people who agree with the idea—parents in particular! According to a 2017 survey by Families Online, 82% of parents say they prefer “traditional” competitive sports days.     5     It’s also an opportunity for some children to show off their physical and sporting skills.

People have different ideas about whether it is the winning or the taking part that counts when it comes to school sports days. So, should School Sports Day be competitive or not? We want to know your ideas.

A.What’s the point if no one wins?
B.Should sport just be about winning?
C.Many of them have “non-competitive” sports days.
D.Everyone should be celebrated for trying and playing their part.
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G.Many adults feel that children can learn valuable lessons in both winning and losing.
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【推荐2】It is easy to talk yourself out of exercising. Even when you have the best intentions to work out, excuse are so easy to find -“I’m too tired.” Or “I’m busy” or “the weather is bad”. Don’t worry!    1    

Take baby steps. You would never try to run 10 miles on one day, right? When you do too much too soon, you will end up injured and discouraged. Take it easy as you get started. Maybe you only run a quarter of a mile during your first week.    2    

Show the clock who is a boss. Health experts say you should aim for at least 150 minutes of exercise a week, plus weight training at least twice a week. If you work too late to get to a gym, keep a set of weights at home. If you can’t exercise for 30 minutes once, break the exercise up into several sections, for example, 10 or 15minutes once.

    3    You should let your workout become a habit, like brushing your teeth or eating breakfast. When it is part of your routine, you won’t even have to think about it. In a few months, fitness can be regular in your day.

Keep it real. You’re not going to lose 30 pounds in a week.    4    For example, increase your workout time from 2 to 3 days a week, or exercise for more minute each time.

Celebrate!    5    Therefore, even a pound of weight loss or a pound of muscle gain is the reason to reward yourself. Go out with friends, or buy a new pair of jeans.

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Run in place

Start by kicking your feet behind you as you run. Then, bring your knees up as high as possible when you feel like you’ve warmed up. Start by running in place for five minutes.

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Work on mountain climbers.

Start by getting into a standard push-up (俯卧撑) position.    3    , keeping your arms in place. Replace your left leg and bring your right knee to your chest. Continue to alternate legs. Repeat this three times for 30 seconds each set.


    4    

Begin by getting into a plank (平板支撑) position. Then, bend your elbows and lower yourself toward the floor but do not touch the floor. If this is too difficult, bend your knees as you do the push-ups. Start by doing a set of 10, and work your way up to three or four sets.

Tone your legs with squats (深蹲)

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A.Try planks (平板支撑) for full body toning (身体紧实)
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E.If that is too difficult, lower yourself onto your elbows
F.The hard work will pay off big time
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