Peking Opera (Beijing Opera), is one of the oldest forms of dramas(戏剧) in the world. The roles(角色) in it were Sheng, Dan, Jing, Mo, Chou, Wuhang, and Longtao during its early age. But with the change of Peking Opera, there are four main roles in it today: Sheng, Dan, Jing and Chou.

    Sheng——Men Roles

    Sheng are the men roles in Peking Opera, which can be divided into Laosheng, Wusheng, Xiaosheng and Wawasheng.

    Laosheng are middle-aged or older men who are honest. Hongsheng,a type of Laosheng, have a red face. There are only two roles famous as Hongsheng. One is Guan Gong and the other is Zhao Kuangyin. Wusheng are young generals(将军) who are good at martial arts(武术). Xiaosheng are clean-shaven(没有胡须的) and handsome. Wawasheng are children's parts.

    Dan——women Roles

    Dan are women roles that can be divided into different types——Laodan, Qingyi, Huadan, Wudan and Caidan.

    Laodan play old and clever women. Qingyi are the main women roles. Huashan, a type of Qingyi, was created by Mei Lanfang, who played an important role in shaping Peking Opera. Huadan are lively and unmarried women roles. Wudan characters are women, good at martial arts. Caidan are clowns(小丑) in funny plays.

    Jing——Painted Face Men Roles

    A Jing role is an important man character with striking(吸引人的) looks and high social position. The main types of Jing are Tongchui, good at singing and usually a general; Jiazi, good at acting with less singing; and Wujing, a martial arts and acrobatics(杂技) role.

    Chou——Comedy Roles

    Chou are comedy(喜剧) roles in Peking Opera. There are Wenchou who speak, act and sing, and Wuchou who both speak and fight. What makes this type of role special is a small patch(块) of white chalk around the nose. One of the famous roles is the Monkey King, who has a special position in the hearts of all who are interested in Chinese opera.

    Some people believe that international sport creates goodwill between the nations and that if countries play games together they will learn to live together. Others say that the opposite is true: international contests encourage false national pride and lead to misunderstanding and hatred. There is probably some truth in both arguments, but in recent years the Olympic Games have done little to support the view that sports encourage international brotherhood. Not only was there the incident of tragedy involving murders of athletes, but the Games were also ruined by lesser incidents caused principally by minor national contests.

One country received its second-place medals with visible anger after the hockey final. There had been noisy scenes at the end of the hockey match, as the losers disagreed with the final decisions. They believed that one of their goals should have been allowed and that their opponents' victory was unfair. Their manager was in great anger when he said: "This isn't hockey. Hockey and the International Hockey Federation are finished." The president of the Federation said later that such behavior could result in the suspension(停赛) of the team for at least three years.

    The American basketball team announced that they would not yield first place to Russia, after a disputable(有争议的) end to their contest. The game had ended in disorder. It was thought at first that the United States had won by a single point, but it was announced that there were three seconds still to play. A Russian player then threw the ball from one end of the court to the other, and another player popped it into the basket. It was the first time the US had ever lost an Olympic basketball match. An appeal jury (评审委员会) debated the matter for four and a half hours before announcing that the result would stand. The American players then voted not to receive the silver medals.

    Incidents of this kind will continue as long as sport is played competitively rather than for the love of the game. The suggestion that athletes should compete as individuals or in non-national teams, might be too much to hope for. But in the present organization of the Olympics there is far too much that encourages aggressive patriotism (爱国主义).

    When migrants（移民） arrive in the US, they face a world that can be confusing in many ways. They need to learn to live in a different environment. Some laws and rules are written down. They can learn about them before they arrive. But there are lots of "unwritten rules," too. Unwritten rules are behaviors that no one talks about, but that most people understand.

    Here is a list of five important issues any new arrival to the U.S. should know about.

    Be "on time." In some cultures, time is not a big issue. If you tell your friend to meet you at 2 p.m. and you arrive at 2:45 p.m., there is no problem. In the U.S., people feel that being on time is a sign of respect. If you are late by more than a few minutes, people will think you do not care. They will feel you are wasting their time. They will take your lateness as an insult.

    Be sure you always "tip." In many countries, after you eat at a restaurant, you only pay the amount shown on the bill. But, in the U.S., people who work in restaurants and bars often earn a low hourly wage. So, they try to provide excellent service, hoping the customer will give them a "tip," meaning a little extra. People in the U.S. tip between 15 percent and 20 percent of the bill. You also give tips to taxi drivers, hotel employees and the people who cut your hair.

    Be careful what you say. Any place you go there will be some things that are proper to talk about and some things that are not. Supposing that people have the same beliefs as you is a bad idea. In the past decade, people in the U.S. have become more open about discussing strong political and religious views. But it is still best to listen to people share their opinions first and then decide about sharing your own. Also, there are several topics you should avoid asking questions about: how much money a person makes and if they are married. But if a person offers this information, then there is no problem.

    Be polite for the situation. People in the U.S. define being polite in very special ways. For example, waiting in line involves a strong set of rules in this country. You must wait until the people in front of you have done what they are waiting to do. When going through a door, the person behind you expects you to hold the door for them. Also, it is common for people you do not know to say hello to you when passing you. But this does not always mean they are inviting you to stop and talk for a long time. Many times the person is just being friendly. If you don't say hello back to them they may think you are being unfriendly.