Different countries have different customs. When you travel to other countries, please follow their customs, just as the saying goes, "_______".

    Very often people who travel to the United States forget to tip. It is usual to tip porters who help carry your bags, taxi drivers and waiters. Waiters expect to get a 15% tip on the cost of your meal. Taxi drivers expect about the same amount.

    In England, make sure to stand in line even if there are only two of you. It's important to respect lines there. It's a good idea to talk about the weather. It's a favourite subject of conversation with the British.

    In Spain, it's a good idea to have a light meal in the afternoon if someone invites you for dinner. People have dinner very late, and restaurants do not generally open until after 9 p.m.

    In Arab countries, men kiss one another on the cheek(脸颊). Your host may welcome you with a kiss on both cheeks. It is polite of you to do the same.

    In Japan, people usually give personal or business cards to each other when they meet for the first time. When a person gives you a card, don't put it into your pocket right away. The person expects you to read it.

    Don't forget to be careful of your body language to express something in conversation. A kind of body language that is acceptable in one culture may be impolite in another.

    The Silk Road is the name of different roads that long ago connected Europe, Africa and Asia. People reached these different places along these roads. Scientists believe people began to travel the Silk Road about 3000 years ago. By the time the Chinese silk trade became important in the world, the Silk Road covered almost 6500 kilometers. It spread from Rome to China, which is from the West to the Far East.

    Traders travelling along the Silk Road carried silk, of course. They also carried and traded spices（香料）,cloth, valuable stones and gold.

    There is a famous old story along the old road. It is said that Roman soldiers（士兵）travelled through central Asia. They started to live somewhere near the ancient Chinese village of Liqian. Some of these Romans married local Chinese women and the story of blue-eyed villages of China was started.

    During its busiest period, the Silk Road allowed people from many different cultures and countries to meet each other and mix. The Silk Road allowed the sharing of valuable goods and new ideas. These included people and trading goods from the Mediterranean, Persian, Magyar, Armenian, Bactrian, Indian and Chinese areas. All these peoples travelled the Silk Road, and they shared goods, stories, languages, and cultures.

    In modern times, the old Silk Road routes（路线）are still used, but now they are crossed by trains instead of camels and horses. There is even a Silk Route Museum in Jiuquan in China. It has over 35,000 objects from all along the Silk Road. In this way, China protects the history of many countries and peoples.

    Two Chinese farmers sang "in the spring" in their small room after drinking in a late August evening in Beijing. A friend put their song on the Internet. And soon they became stars around China.

    Wang Xu, 44, is from Henan, and Liu Gang, 29, is from Heilongjiang. They are among the millions of farmers who have gone to the cities to work.

    "Although nobody pays attention to the music, I am singing happily, on streets, under bridges or in wild country, with no credit card, no girlfriend or a home with hot water, but only a guitar." They sing, "It is just like the life we live now." Wang said, "We are poor farmers, and you know people won't care about us."

    Their song is loved by millions of Chinese, including the people who are also from the countryside. Many people said they cried after listening to the song.

    Wang came to Beijing in 2000 and has tried many jobs. Each month after he paid 600 yuan for the house and bought food, there was little money left." I love music, and also want to make more money." Wang said." I never dreamed of standing on such a big stage."

    Liu came to Beijing in 2002. "I wanted to try my luck in the big city." He said. And now their dreams of music have come true. They are really the luckiest of all the farmers in China.