Did you spend much time lying on the comfortable sofa at home during the summer vacation? How often did you do sports this summer? People across the world need to get moving, according to a new study by the World Health Organization (世界卫生组织).

    5% of adults do not get enough exercise, according to the study. This number hasn't changed from 2001. Because of this, about 1.4 billion people are close to deadly diseases (疾病) such as heart disease and cancer (癌症).

    People should do at least 2 and a half hours of "moderate intensity (中等强度)" exercise each week, such as dancing or swimming. They can also do 75 minutes of "vigorous intensity (高强度)" exercise, such as running or playing soccer, according to the WHO.

    As for how to exercise more, experts says that we don't have to go to the gym (健身房) every time For example, we can go up and down stairs (楼梯) a lot instead of taking the lift. If we can't go to a dancing class each week, standing on one leg for 30 seconds a day is very good too.

    The study also found that women are less active than men, 32% of women hardly ever take exercise, compared to (比较) 23% of men. Women spend more time at home taking care of children and doing housework.

    But unlike that in most other countries, men are less active than women in China, with 16.6% of men and 12% of women not getting enough exercise.

There are many classic (经典的) cultures in China. All of them have a very long history. Here we introduce three of them. 

①They are making a difference to the world. They are the force that is going to shape our future. Who are they? They are the young generation (世代) who were born after 2000.

②Last year, several young athletes (运动员) shone brightly at the Beijing Winter Olympics, giving us a chance to know about their generation nature. Certainly, this generation is filled with "brave warriors" who want to challenge impossibilities and push the limits(突破极限). Freestyle skier Gu Ailing is a good example. After finishing the first two excellent jumps in the event, it was certain that she could get a medal. But she decided to challenge a difficult trick (技法) instead of playing it safely. "I have never done this trick before. I just feel it was a chance (机会) to push myself to the limit."

③For those young athletes, the sport is never just about scores, but also about having as much fun as possible. Born in the US, she also faced doubts (质疑) for representing China. "I'm an 18-year-old girl out here living my best life. It doesn't matter whether other people are happy or not, because I feel I'm doing my best and I'm enjoying the sport itself."

④Gu's friend, Chinese snowboarder Su Yiming, also shares a similar opinion. He takes sports as a way to have fun. After he lost the gold to Canadian athlete Max Parrot (a great snowboarder),   ▲  .

⑤This is a young generation that dares to push the limits but also enjoys life.

Khalid Robinson is a 19﹣year﹣old US singer.He has been surrounded by music in {#blank#}1{#/blank#}life.He was introduced to music at a（n） {#blank#}2{#/blank#} age.Khalid released（发布） Location before his high school graduation，and it gained over 1.52 million plays in less than two {#blank#}3{#/blank#} .

He posted a thought on social media，{#blank#}4{#/blank#} he wanted to go to the Grammy Awards one day.Three years later，Khalid's {#blank#}5{#/blank#} came true.He made his {#blank#}6{#/blank#} appearance at the ceremony on January 28th.The breakout（一炮而红的） singer woke up on November 28th and {#blank#}7{#/blank#} that he was nominated（提名） for five Grammy Awards.

"The reason why Khalid {#blank#}8{#/blank#} to have the world at his feet is that his songs tell an outsider's story that might be the thing that can unify and move millions，" the pop music critic Jon Garamanica wrote.

In fact，Khalid {#blank#}9{#/blank#} tries to find a balance between his lyrics about growing pains and his beautiful voice."We forget that {#blank#}10{#/blank#} we grow up，there are a lot of people who are in the same position as us，"he told Entertainment Weekly."The reason we forget is that there's not really a true voice that talks from the point of youth."

Gardening is very popular in many places of the world. It brings us sweet flowers, fresh fruit and vegetables. But you can get more from your garden. 

Gardening helps to keep healthy. Today's people sit indoors for too long and don't get enough exercise. When you garden, you have to move around. It's a good chance(机会) to exercise your body by watering the flowers or doing something else. Also when you are in the garden, you can feel the warm sunshine. This means you are getting more Vitamin D. It helps your body use calcium(钙), which is necessary to keep your bones(骨骼) strong. 

Gardening is a great activity to do with children. It gets them off computers, televisions and smart phones. Gardening can be a great teacher to teach kids about nature and healthy eating. It can help them to understand the meaning of hard work. 

Gardening is a great way to meet people and build a good relationship(关系). When you are gardening, you are outdoors, so it is a great time to talk with your neighbors. You may talk about your hobbies and interests. People always enjoy showing others what they are growing and enjoy sharing advice and stories about their gardens.