Many parents don’t know how much exercise their children need to do every day to stay     1     (health). The National Health Service guidance states that children     2     are aged from five to eighteen should do one hour of exercise every day, which about seventy percent of adults in the UK never mind. The research of 2,000 adults     3     (find) that only a quarter knew the exercise time recommended for young people.

The Youth Sport Trust leader, Ali Oliver said, “We have seen a drop in young people’s physical activity in recent     4     (year).” It is often     5     (report) that pupils are taken out of PE lessons to prepare for exams.

Meanwhile, figures from Sport England show only 17.5% of children are doing sports continuously. There is also a     6     (differ) among children from various economic (经济) backgrounds, with 39% of those from poor families doing     7     (little) than thirty minutes of exercise a day, compared with 26% from rich families.

This week thousands of people will get together     8     (celebrate) National School Sport Week, with     9    aim of promoting (推进) the importance of exercise and bringing great benefit     10     young people.

Exercise might seem like a chore sometimes,     1     (especial) when we get told so often that we should exercise more. But we need to get up and start moving. Many of us spend too much time     2     (sit) and staring at screens. Most teen girls don't meet the standards for physical activity. Getting     3     (scold) about this, though, doesn't really help. And that's too bad, because exercise can be both fun and good for the body and the brain.

Exercise is     4     healthy way, which is not only good for your muscles, but also good for your bones. Getting exercise     5     (help) teens build tough skeletons. And teens who exercise more often grow up into adults with much     6     (strong) bones.

Exercise can increase how much oxygen and blood gets to the brain, and even how the brain is structured. Working       7     can produce chemicals in our bodies that might help prevent depression. And a workout after learning something can help us form and preserve a great number of     8     (memory).

So maybe it's no surprise     9     so many scientists study exercise. There are some scientists, for instance, who study what makes winning runners so fast. Others study astronauts in space     10     (find) out how to keep humans healthy both on and off planet Earth.

Martial Arts had its origins in the Shang and Zhou Dynasties. During the following Qin and Han Dynasties, wrestling, swordplay and spear skills became well developed and were popular among civilians and troops. In the Song Dynasty, various schools, boxing styles, movement sets    1    weapon skills flourished. We recognize Martial Arts    2    Gong Fu or Wushu today, which has many followers worldwide.

Martial Arts is a series of fighting styles    3    has developed over a long historical period in China. Nowadays, it     4    （regard） as a traditional sport gaining more and more    5    （popular） and even stands as a representative for Chinese culture. Styles including Shaolin, Tai Chi and Qigong have many followers worldwide. Some westerners think that all Chinese people are Gong Fu masters. That's not true, but this traditional heritage （遗产）has    6    （it） unique existence in modern times and left much influence on the locals' lifestyle.

Although being fighting styles, Gong Fu    7    （advocate） virtue and peace, not aggression or violence. This has been the common value    8    （encourage） by martial artists from generation to generation. With a number of movement sets, boxing styles, weapon skills and some fighting touches , Gong Fu keeps the    9    （origin） function of self-defense. Now the value in body-building and fitness is also     10    （high） appreciated.