Up to 82 percent of children with healthy mothers are not easy to be obese（肥胖的）, according to research. A mother,     1     has a healthy weight, exercises regularly, eats a healthy diet, doesn’t smoke and only     2    (drink) wine in moderation, is significantly less likely     3    (have)a fat child, scientists say.

And research suggests it could be more to do with nurture(养育)    4     nature, as a mother's lifestyle appears     5    (direct) linked to the health of her child. When both mother and child follow a healthy lifestyle, the risk of obesity     6    (reduce)even more, the study of more than 24,000 children found.

The study examined the medical history and lifestyles of more than 24,000 children aged nine     7     fourteen, born to almost 17,000 women in the US. Researchers looked at the link between overall mother health and likelihood of a child     8    (be) obese.

The mother's health was judged on her height-to-weight ratio(比例), her diet, amount of physical     9    (active), smoking status and how much alcohol she drank. A healthy weight and diet, regular exercise, no smoking and moderate drinking all reduce the chance of a woman having     10     obese child.

Olympic and Paralympic medals for the Tokyo 2020 Games will be made from recycled mobile phones donated by the public.

Olympic host cities have     1     (tradition) obtained the metal from mining firms. But Japan,     2     lacks its own mineral resources, is keen on taking the theme of a sustainable future a step     3     (far).

“A project which allows the people of Japan     4     (participate) in creating the medals is really good, and helps raise the environmental awareness of our citizens,” said Tokyo 2020 sports     5     (direct) Koji Murofushi. “    6     the resources of our earth are limited, we need to recycle more and avoid waste. This program is setting an example ”

Collection boxes have been placed in local offices and telecom stores and they will remain there until the metal required     7     (collect).

Members of the organizing committee put forward the idea    8     government officials and companies earlier this year and won their support.

As a result, the medals hanging around Olympic winners’ necks will carry even more meaning than usual. People’s personal memories, once     9     (store) in their smartphones and other handheld devices, will take the round shape of an Olympic medal, one of the most precious     10     (prize) in sport.

On a quiet morning, about 70 people were practicing the ancient art of tai chi, outside of the library in Salt Lake City, Utah. They are not    1     well-trained   group of exercisers,   but rather a class of participants who are    2    (most) homeless. The class focuses    3     (little) on mastering the exercise and more on    4    (build) a community. People have said the class relieves their stress, encourages them to get into a routine and make new friends.

Bernie   and Marita Hart, a    5    (retire) couple, began to run the free program   three years ago. They started it by approaching   homeless people    6     were pushing grocery carts near the Salt Lake City Public Library and inviting them to try    7     Hart said her   favorite part of the program has been watching the friendships among participants. They love seeing the positive impact the class    8    (have) on people's lives.

When the Harts are out of town, tai chi does not stop. Attendees take turns teaching the classes.

"Homeless people    9    (tell) what to do every place they go, but we want to encourage them   to   be    10    (leader)," Bernie   Hart   said. "They   don't   need   sympathy,   they   need something that works."

Diet and way of life are often a problem for teenagers.     1    , the good news is that you can feel better and have more energy if you eat the right food and exercise regularly.

Healthy eating along with regular exercise is     2    (actual) the only way to become fit. Diets are not     3    (suit) in the long term, yet about 20% of teenagers say they have tried going on a diet and been fooled into     4    (quit) meals to control their weight.

As a teenager, it is important to give your body the energy it needs. Exercise is something     5     can help to make you look good, feel good and be healthy. Many teenagers are     6    (confuse) to learn that your body produces some     7    (chemical) that make you feel peaceful and increase your ability     8    (concentrate) when you study.

A good amount of sleep every night is also important for your health. When you sleep, your body prepared you for the day to come. As a matter of fact, loss     9     sleep can make you look tired.

If you follow the suggestions above, you     10    (look) and feel much better in no time at all.

According to a study published in the UK recently, those who like jogging and do this kind of exercise     1     (regular) for at least one hour a week have very high chances to live a longer life. The study's Danish researchers convinced     2     (convince) that choosing this kind of physical activity can bring us a priceless reward,     3     is 5 to 6more years of life! Moreover, to achieve better results, the researchers suggest     4     (limit) yourself to gentle jogging rather than fast-pace and tiring distance running. The scientists found that jogging     5     (benefit) are maximized when done at an average or even slow-pace exercising, and just one or two hours of jogging     6     week can be enough for you to achieve success, regardless     7    your age or health condition.

The scientists analyzed the data on about 20,000 people     8     (age) between 20 and 93, collected for over 35 years by the Copenhagen City Heart Study. According Dr. Peter Schnohr, the     9     (lead) researcher, it was found that jogging is associated with as much as a 44 percent     10     (low) risk of death. The life expectancy increase in men is as much as 6.2 years, and for women it is as much as 5.6 years.

Kip Keno, an untrained Randi tribesman, was already 28 years old,     1     he made his second Olympic appearance at the 1968 Mexico City Games. Suffering from violent stomach     2     (cause) by a gall bladder infection, Keno entered the 10,000 m. He was running with the leaders when, with two     3    (circle) to go, he doubled up with pain and fell onto the field. He jumped back up and finished the race,     4     he was canceled qualification for leaving the track.

Four days later, he earned a silver medal in the 5,000 m,     5     (leave) behind Mohamed Gammon of Tunisia by narrowly a metre. In the 1,500 m, Keno tried to defeat the finishing kick of the favourite, Jim Ryan, by building up a huge lead. His strategy worked and he     6     (win) by 20 m, the     7    (large) advantage of victory in the history of the event.

In 1972, Keno entered the steeplechase (障碍赛) even though he had little experience in     8    event. Still, he was able     9    ( defeat) teammate Ben Jericho and won another gold medal. Six days after this victory, he added a silver medal in the 1,500 m, winning a good medal.

Keno and his wife, Phyllis,    10     (eventual) established a children's home and school for orphaned and abandoned children.

All sports people are under a lot of pressure to win. In the past, athletes only trained to get physically fit. Today, sports psychologists use scientific techniques     1    (help) athletes get spiritually fit too.

British player Johnny Wilkinson described some of the pressure he     2    (feel). He played very well at the 2003 World Cup but after that he couldn’t play well. He found that he had a terrible fear of failure. With the help of sports psychologists, he realized that reality changes     3    (depend) on how we look at it and then everything went better.

In team sports, psychologists help players in different ways, one of     4    is to create a team spirit. “A team     5    (make) up of a certain number of players, just like a monster with many heads. It’s very difficult to get all of players, who have different     6    (personal), to think in the same way,     7    when you see a team that works as a unit, everything happens     8    (easy),” said Professor Dave Collins, a sports psychologist. “When there is a team spirit, the players all take responsibility and also they don’t blame individual players     9    mistakes. In this way, they all feel more confident and can concentrate better, and so the achievement is     10    (great) too. ”

At a gymnasium in downtown Beijing, a group of young enthusiasts are training and practicing the     1    (tradition) martial art of shuai jiao, which is native       2    China. The style of close combat fighting, also     3    (know) as Chinese wrestling, dates back thousands of years. It     4    (consider) by some experts as the origin of modern throwing sports such as judo. In recent years it has started to regain popularity with martial arts practitioners in the capital.

Hu Wannian started practicing shuai jiao at the age of 6. In 2016, he founded a wrestling club,     5    helped him promote the martial art at     6     open area in his residential complex in Beijing. At first, the tough conditions stopped many parents from     7    (allow) their children to join Hu's club. So far, the 62-year-old     8    （train) 50 students.

Yang Fan,28,is one of Hu's female     9    （student).“Very few girls practice Chinese-style wrestling," she said."But it has     10    （great) improved my athletic ability."