2 . These days, football is one of the most popular sports in the world.     1     Football as we know it today started in Great Britain, where the game was given new rules.

That football is such a simple game to play is perhaps the basis of its popularity.     2     You don’t need expensive equipment; even the ball doesn’t have to cost much money. All over the world you can see kids playing to their hearts’ content with a ball made of plastic bags.

    3     It is fun enough to attract millions of people. You do not have to be a fan to recognize the skill of professional players—how they use their bodies to pass, score and defend can be amazing to see—or to feel the excitement of a game ending with a surprising twist.

What’s more, football has become one of the best ways for people to communicate: it does not require words, but everyone understands it.     4     Take, for example, the famous football game on Christmas Day 1914. World War I had broken out months before, but British and German soldiers put down their guns and played football together—one moment of peace to remember during years of conflict.

“Some people believe football is a matter of life and death, ... ” said Bill Shankly, the famous footballer and manager. “    5    ” This might sound funny, but one only has to think about the Earth to realize that our planet is shaped like a football.

Recent studies have shown the benefit — even necessity — of     1     (spend) time outdoors, both for kids     2     adults. Some argue that it can be any outdoor environment. Some say it has to be a “green” environment — one with trees and leaves. Most of the studies agree that kids who play outside are     3     (happy) and less anxious ( 焦虑的) than kids who spend more time indoors. While it’s unclear how     4     (exact) the mood improvements happen, there are a few things we do know about why nature is good     5     kids’ minds.

There are various ways     6     (explore) outdoor environments, from the backyard to the park, and letting a child choose how he treats nature     7     (mean) he has the ability to control his own actions. This style of play also allows kids to interact ( 互动) meaningfully with their environments. They can think more freely, design their own activities, and approach the world in     8     (interest) ways.

Most ways of interacting with nature include more exercise than sitting on the sofa. Kids don’t have to join the local soccer team or ride a bike through the park — even a walk will get their blood pumping ( 流通). Not only is exercise beneficial to kids’ bodies, but it seems to make     9     (they) more focused, which is especially beneficial for kids with ADHD ( 多动症).

So while screen time is the easier, more popular choice,     10     is important to set enough time for outdoor play.

The words “sport is power” proved true when China hosted the FISU World University Games in Chengdu, Sichuan province, from July 28 to Aug 8. Nothing was     1     (power) than letting thousands of foreign athletes and visitors from around the world see the achievement s of China. The games     2     (successful) showed national pride with amazing results, and     3     (impress) every athlete with the excellent competition facilities and the efficient organization of the atheltes’ village, where they had the opportunity     4     (enjoy) Chengdu’s famous spicy food     5     attend cultural activities. The games also fostered cultural exchanges, mutual understanding and friendships     6     crossed borders.     7     (compete) were found hugging each other while offering their rivals encouragement and warm congratulations. Handwritten letters from individual students in Chengdu     8     (hand) to overseas journalists to show their welcome and     9     history and attractions of the provincial capital. Additionally, the games were helpful     10     developing the sports industry in China.