2 . Many hear endlessly how good exercise is for our health,but you might be surprised to know just how good.    1    

It helps you breathe better.

Frequent exercise improves the volume of oxygen you can use in your body.This is what makes you fit and the benefits aren’t limited to sport.    2     Attending some professional courses can build core strength and improve shape,and so strengthen breathing muscles. 

Physical activity enhances your mental health.

Doing something active releases “happy” brain chemicals that make you more positive.The more you do it,the better you’ll feel.But you do need to work up a sweat.If you’ve had a bad day,treat yourself to a little bit of exercise.    3    

    4    

The way your guts (内脏) feel often impacts on your mental and physical health.Walking,running and yoga strengthen abdominal (腹部的)muscles,increase the heart rate and encourage your muscles to move digestive waste through your body more efficiently and digest food more quickly.

Keeping active keeps you young.

There may not be an elixir (灵丹妙药) of youth just yet,but keeping fit comes close.Just 15 minutes of exercise a day for eight years can increase your lifespan by three years.The more you do,the longer you could live.    5     It can be low-intensity exercise—swimming,a long walk on a running machine at the gym,or a low-intensity workout via special APPs.

3 . Sports can help contribute to a healthy body and get you close to nature. However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great impact on the environment.

    1     Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses(球场) in good condition.     2     For example, in the dry regions of Portugal and Spain, golf is often held, responsible for serious water shortage in some local areas.

There are many environment-friendly sports.     3     You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, it can also keep you fit.     4     Experts say that 20 minutes daily can make you feel less anxious, sleep well and have better weight control.

Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces.     5     And best of all, it’s free.

4 . The beach may seem like an inviting place to run on a cool summer morning, but is running on the sand good for your body? It can be, but it’s important to be aware of the challenges that some beach runners experience before you get ready.

Running on the beach can be a good thing. It’s certainly different from running on a track or a pavement. For starters, sand can be a challenge because it has an uneven(不平坦的) surface. As you push off, you’re going to lose some of your push as the sand moves. So, you’re not going to be able to push yourself forward as you would on a track or a pavement. But this unevenness has an upside: It gives your body an extra workout, forcing you to exercise muscles that don’t get as much use during runs on firm surfaces. For example, your feet, ankles and lower back might feel sorer and more tired than usual after a beach run just because the surface is constantly moving and changing step to step.

You also might feel sore afterward because beaches tend to slope (倾斜) down to the water. If you’re going for a long run on the beach, you might notice that one side of your body might feel sorer because you’re putting more pressure on it due to the slope.

Some beach runners prefer to run barefoot-- not wearing anything on feet. However, if you’re not used to barefoot running, start slowly and don’t run long distances at first. That’s because running barefoot uses more different muscles than running with shoes does, and it’s important to strengthen these muscles and adapt your feet. If you want to run barefoot and as long as you run carefully enough into it, go for it!

Running on the sand can be a smart choice for you, because running on softer ground surfaces can reduce muscle damage.

Nowadays, football is one of the most popular sports in     1    world. Its history    2     (go) back over two thousand years to ancient China, and it was known as cuju then. Modern football started in Great Britain,    3     the new game rules were made.

Football is simple and very cheap    4    (play), which is perhaps the basis of the popularity. People needn’t expensive equipment    5    the football doesn’t cost much money.

Another factor behind    6    (it) global popularity is the creativity on the field. It is attractive    7    millions of people. People can see children playing with a ball everywhere. People also can feel the    8    (excite) of a game even without recognizing the skill of professional players.

What’s more, it has become one of the    9    (good) ways for people to communicate. It doesn’t require    10    (word), but everyone can understand it. It breaks down walls and brings people together on and off the field.

8 . Why play sports? You might say “to get exercise” and you would be right. To have fun? That's true, too. But there's more.     1     According to the Women's Sports Foundation, girls who play sports get a lot more than just fit.

Girls who play sports do better in school. You might think that athletics will take up all your study time.     2     Exercise improves learning, memory, and concentration, which can give active girls an advantage in the classroom.

Girls who play sports learn teamwork and goal-setting skills.     3     When working with coaches, trainers , and teammates to win games and achieve goals, you're learning how to be successful. Those skills will serve you well at work and in family life.

Sports are good for a girl's health. In addition to being fit and keeping a healthy weight, girls who play sports are also less likely to smoke. And later in life, girls who exercise are less likely to get breast cancer or osteoporosis(骨质疏松症).

Playing sports improves self-confidence.     4     Why? It builds confidence when you know you can practice, improve, and achieve your goals. Sports are also a feel-good activity because they help girls get in shape, keep a healthy weight, and make new friends.

    5     Playing sports can reduce stress and help you feel a little happier. How? The brain chemicals leased during exercise improve a person's mood. Friends are another mood-lifter. And being in a team creates tight bonds between friends. It's good to know your teammates will support you-both on and off the field!

Tai Chi Chuan,     1     is famous as a kind of martial art, has been practiced China for centuries. It combines slow movements, deep breathing and thinking. Every movement in Tai Chi represents     2     important part of old Chinese philosophy—harmony.

Tai Chi is a term in the Chinese     3     (tradition)philosophy. It comes from The Book of Changes(《周易》). In the time of Song Dynasty, Zhou Dunyi     4     (write) the book Theory of the Tai Chi Pictures. The inventors of Tai Chi     5     (inspire)by this book and invented Tai Chi Chuan with the continuous movements of drawing circles in the air by     6     (guide) the breath with the willpower. They also absorbed the thoughts of the Taoist, such as the concept of Yin and Yang. Tai Chi provides the mental relaxation and physical     7     (fit).

Tai Chi is an unusual form of martial arts where we believe     8     building mental and physical strength. It is     9     (particular) different from western types of sports such as football where the harder and quicker are the better.

Today, Tai Chi is so popular in the west. Some health professionals have regarded Tai Chi as one of the     10     (benefit) forms of exercise.

As is     1     (know) to all, the Olympic Games are the most important events in the world. They were first held in ancient Greece     2     776 BC. And the events were named after the city Olympia. Slaves and women could not be allowed to take part in the ancient Olympics, and the     3     (athlete) were all from the same country.

In 1896,     4     first modern Olympics opened in Athens, the capital city of Greece. From then on, the Olympic Games     5     (take) place every four years. Athletes from the whole world can take part in the     6     (importance) events, whether they are men or women. The five rings on the Olympic Flag stand     7     five continents and the union of the whole world.

China didn't become a member of the modern Olympics until the 1950s. And in 1984, Xu Haifeng became the first Chinese that won an Olympic gold medal in shooting. With the     8     (develop) of China, Beijing finally succeeded in     9     (hold) the 2008 Olympics, during which the five Fuwa mascots     10     (deep) impressed the whole world.