5 . People need to relax and enjoy themselves. One way they can have a good time is to watch a baseball game or another sports event. Even thousands of years ago, groups of people gathered to watch skilled athletes(运动员).

Over 2,000 years ago in Greece, some days in the year were festival days. These were holidays when people stopped their work and enjoyed themselves. During festivals, people liked to watch athletes take part in races and other games.

The most important festival was held every four years at the town of Olympia. It was held in honor of the Greek god Zeus. For five days, athletes from all corners of Greece took part in the Olympic Games.

At the Olympic Games, people could watch athletes run, jump and so on. They could also watch exciting races, which included a relay race between two teams in which a lighted torch(火炬) was passed from runner to runner.

The Olympic Games were thought to be so important that cities throughout Greece which were at war with one another had to stop fighting. During the time, people were allowed to travel to the Games safely.

Thousands of people came to the Olympic Games from cities in Greece and from its colonies(殖民地) in Africa, Asia, and Italy. They met as friends to cheer their favorite athletes and to enjoy themselves.

In Asia, especially the so-called “rice bowl” cultures of China, Japan, Korea, and Vietnam, food is usually eaten with    1    (chopstick).

Chopsticks are usually two long, thin pieces of wood or bamboo. They can also    2     (make) of plastic or mental. Sometimes chopsticks are quite artistic.    3    (true) elegant chopsticks might be with Chinese characters. Skilled workers also combine various hardwoods    4    metal to create special designs.

Five thousand years ago, Chinese people probably cooked their food in large pots,    5    (use) branches to remove it. Food in small pieces could be eaten easily with branches     6    gradually turned into chopsticks.

Some people think that the great Chinese scholar Confucius, who lived     7    551 to 479 BC, influenced the     8    (develop) of chopsticks. Confucius believed knives would remind people of killings and     9    (be) too violent for use at the table.

Chopsticks are not used everywhere in Asia. In India, most people traditionally eat     10    their hands.

What do the five Olympic signs on the flag represent?     1     is widely believed that the five-riing Olympic symbol was created by Frenchman Pierre De Coubertin in 1913. As the founder of the modern Olympic Games, he wanted     2    (celebrate) the 20the anniversary(周年纪念) of the Games and chose a design of five rings,     3     represented the five continents(洲) taking part in the Games. The rings     4    (become) the official Olympic symbol at the 1920 Games in Belgium.

Pierre de Coubertin thought that the five interlocking rings meant the five continents     5    (compete) in the Games and the meeting of their athletes at the Olympic games.     6    (actual) every part of the modern Olympic symbol and flag shows the main purpose of the Games in a particular way. The Olympic flag, with its familiar rings, is used as     7     international symbol of peace, unity and     8    (agree). The white background of the flag stands     9     peace and truth.

At the end of each Olympic Games, the mayor(市长) of the hosting city passes the Olympic fag to the mayor of the city where the next Olympics     10    (hold) for years later. The flag remains there until the next Olympics.

9 . Whether you admit it or not, people's love for Christmas Jumper（毛衣）around Christmas has increased over recent years. And while you may be less willing to get involved in the Christmas jumper trend, Christmas Jumper Day now enables you to do more with your jumper than build up sweat in an incredibly warm office.

The origin of the Christmas jumper can date back to the late 19th century in the USA. Americans in the 1930s knitted（编织）for Christmas to create an item of clothing to keep them “warm” during the Great Depression（大萧条）when people led a poor and miserable life. They copied the jumpers they saw their favorite stars wearing on the big screen. From the 1950s, it was common to see American families wearing festive jumpers as they sat down to eat their Christmas dinner.

Now, alongside wearing a festive jumper for the fun of it, there are other positive outcomes. Christmas Jumper Day has been set up to stimulate people to make the world better and raise funds for save the Children by wearing a Christmas jumper and making a minimum donation of £1. Ladbrokes, a company in the UK, is running a competition in which all you have to do is to take a selfie（自拍）outside of one of their shops while wearing a jumper—the winner will win a good prize and for every submission（提交作品）, Ladbrokes will donate £5 to St. Luke's Hospice charity. For you, it's a win-win situation.

If you're still unconvinced that it's about time you bought yourself a Christmas jumper, then maybe the fact that Taylor Swift, Justin Bieber and Snoop Dogg have all been spotted wearing Christmas jumpers will raise your enthusiasm. Retailer（零售商）such as Topshop, Burberry and H&M have also become devoted to Christmas Jumper Day and have their very own types of Christmas jumpers.

10 . Tourism probably started in Roman times, Rich Romans visited friends and family who were working in another part of the Roman Empire. But when the Empire broke down, this kind of tourism stopped.

In the early 17th century, the idea of the “Grand Tour” was born. Rich young English people sailed across the English Channel. They visited the most beautiful and important European cities of the time, including Paris in France, and Rome and Venice in Italy. Their tours lasted for two to four years, and the tourists stayed a few weeks or months in each city. The “Grand Tour” was an important part of young people’s education—but only for the rich.

In the 18th century, tourism began to change. For example, people in the UK started to visit some towns, such as Bath to “take the waters”. They believed that the water there was good for their health. So large and expensive hotels were built in these towns.

In the 19th century, travel became much more popular and faster. When the first railways were built in the 1820s, it was easier for people to travel between towns, so they started to go for holidays by the sea. And some started to have holidays in the countryside as cities became larger, noisier and dirtier.

Traveling by sea also became faster and safer when the first steamships were built. People began to travel more to far-away countries.

The 20th century saw cars become more and more popular among ordinary people. Planes were made larger, so ticket prices dropped and more people used them. Thus tourism grew. In 1949, Russian journalist Vladimir Raitz started a company called Horizon Holidays. The company organizes everything—plane tickets, hotel rooms, even food—and tourists pay for it all before they leave home. The package tour and modern tourist industry was born.

The first travel agency in China was set up as early as 1949. But tourism did not take off until 1978. In 2002, the industry was worth 500 billion yuan and became an important part of China’s social development.