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题型:阅读理解-阅读单选 难度:0.65 引用次数:75 题号:11320402

Are you the type to run before breakfast in a morning? Working out on an empty stomach won't hurt you ——and it may actually help, depending on your goal.

Exercising before eating comes with the risk of feeling light-headed due to low blood sugar. You might feel tired or uneasy, and won't be able to work out as enthusiastically as you would have. A light amount of food is important for older adults over 55 to eat something before exercising — especially in the morning. But if your primary exercise goal is weight loss, exercising on an empty stomach may come with some promising benefits. There's some research to support the idea that working out in a fasted (禁食的)state can burn more fat than exercising in a fed state.

Working out on an empty stomach, however, may also not prove true for everyone. “Some people advocate for lasted exercise, but these people tend to be young and in amazing physical - shape,” says Douglas Paddon-Jones, a muscle physiology researcher and a professor of aging and health at the University of Texas Medical Branch. “They have no health problems, and what they're eating is super-high quality and carefully regulated.” On the other hand, working out in a fasted state without proper planning or professional oversight may run the risk of unhealthy body composition changes.       

For people who aren't athletes, fueling up with food before a workout may be the best way to get the most fat-burning benefit. “You don't want to fill up; you just want to give your body a burst of energy to power your training period. After you exercise, drink some water ——but wait 60 to 90 minutes before eating, ”says Shivani Sahni, director of the nutrition program at Harvard University's Instituted for Aging Research. “You're trying to take advantage of your promoted metabolic (新陈代谢)rate post-exercise, so if you can go an hour or an hour and a half without eating, you'll maximize the fat-burning response,” says she.

1. Why does the author suggest exercising in a fed state?
A.To avoid being light-headed.B.To lower blood sugar.
C.To burn more fat.D.To work out energetically.
2. Who may tend to practise lasted exercise?
A.Older adults.B.Seniors beyond 55.
C.Professional athletes.D.Good-shaped athletes.
3. What's Shivani Sahni's suggestion for people after exercising?
A.Developing a new lifestyle.
B.Finding a fitness instructor.
C.Going without food for a time.
D.Drinking salty water after exercising.,
4. Which word best describes the author's attitude to working out in a fasted state?
A.Skeptical.B.Cautious.C.Supportive.D.Subjective .

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【推荐1】It comes as no surprise that exercise is good for your health. Positive changes happen to your body before, during, and after a workout.     1    

Build up your body

There are quite a few scientific reasons to do strength training. It makes muscles (肌肉) bigger and bones stronger, thus lowering the risk for certain diseases. Running is an easy but effective way to help build your muscles.     2     But a recent study found that a short run can benefit the legs in the short term. And for now, experts say running has more benefits than risks.

Improve your brainpower

Exercise can help your brain, not just your body. Physical activity helps brain cells (细胞) grow.     3     That’s because physical exercise quickly increases a person's heart rate and carries more blood to the brain, improving the brainpower.

Establish a mind-body connection

Too much stress can lead to inflammation (炎症).    4     But simple mind-body exercises like yoga can not only reduce inflammation but also lower the risk of depression. New research shows they can even change your genes to fight off poor health. Research proves that even just 15 minutes a day of practicing mindfulness seems to do the trick.

    5     National guidelines recommend more than two hours of physical activity each week. But science says people who pack that amount into one or two days get about the same benefits. Either way, get moving is the key!

A.It is the body’s painful response to injury and overuse.
B.Mindful exercises can improve your long-term well-being.
C.Then what is the proper amount of exercise you should take?
D.And moving more appears to lower the chances of memory loss.
E.Recent research shows more detail about the benefits of exercise.
F.Exercise can also help people deal better with anger and feel happier.
G.Some believe the activity can damage the knees or cause other injuries.
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【推荐2】For the last six years, speed walking has now become part of my daily routine. I am always keen to do it regularly without a break. Even though I am neither a physician nor a specialist in medical science, I am fully aware that exercise, especially speed walking, helps maintain health and lowers the chance of falling ill.

I urge everybody to speed walk on a daily basis, with one day off a week, or at least to do it three times a week. I managed to burn around 17 kg of fat after taking up speed walking. This should also be accompanied with a change in diet. We need to reduce how much we eat and avoid junk food, sweets and carbonate drinks. Reducing the amount of food we eat in the evening by around 80 per cent and increasing how much water we drink are also good practice. Overeating should also be avoided.

I usually walk at a speed of 1 km per 8.5 minutes. It will initially make me tired. However, over time it will become a habit and an addiction.

This type of exercise will help you sleep and give you an appetite. It will make you physically fit and help burn fat and calories. Speed walking makes you healthy and everyone can find time to walk. The problem is that some people do not plan their days and do not, therefore, find time. We can gain health and social benefits from speed walking. It will help change our lifestyles, fight diabetes(糖尿病), and other illnesses.

Arguments such as “I am too old and obese to walk” do not hold water. People of any age who speed walk will see the benefits within a couple of months. Walking outdoors is ideal and it is best done in the company of friends.

1. Which sentence is TRUE according to the passage?
A.Speed walking helps patients recover from illness.
B.The author thinks everybody should speed walk every day.
C.The author suggests reducing the amount of food we eat by around 80 per cent.
D.The author walks at a speed of more than 100 metres per minute.
2. We can infer from the fourth paragraph that    .
A.speed walking possibly leads to an eating disorder
B.many people are too busy to have a fast walk every day
C.more calories and fat will result in some serious illness
D.speed walking can effectively cure kinds of diseases
3. What does the underlined part “hold water” mean?
A.Make sense.B.Work out.C.Have a drink.D.Build up.
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【推荐3】As is often the case, it is human nature to lead a sedentary(久坐的)lifestyle and most of us are so involved in our busy schedules that we don't even notice our bad habits. Many worry about the right time or "right age" to start working out.     1     Here're some practical tips to help you get fit.

Master your mind. Most people argue that they are too tired or old to start exercising. Doing so is much easier than trying to change the busy lifestyle. Change your mindset and be more confident in improving your health.     2    

Easy does it. Once you have chosen a fitness program, start slowly and increase it in stages. Begin with just a few minutes of gentle exercises and stretches.     3     About 30 minutes should be devoted to your workout. As your body starts to respond and your muscles get used to the exercises, you can gradually increase the length of your workout.

Always warm up. Always remember to warm up your muscles before exercising. Gentle warm-ups will reduce your risk of injury, aches and pains, and increase blood circulation and flexibility.

    4     There's no quick access to getting fit. It's a common mistake to do too much too soon. If you don't know how to balance your needs and your expectations, you might seriously injure your muscles or just create stress.

Cool down. When you finish your routine, you need to cool your muscles and let your heart rate slow gradually.     5    

A.Don't overload your body.
B.Never ignore your potentials.
C.Tell your body to be more active and say, "I can do it."
D.However, nobody cares about what you have done for them.
E.Go next to some mild activity such as walking, jogging or cycling.
F.Cooling down will help your body to return to its pre-exercise level.
G.But it's never too late for them to start exercising and all they need is enough determination.
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