31．Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise.It is over 100 years old and is played by more than 200 million people in over 200 countries.It is believed that the first basketball game in history was played on December 21，1891.Then in 1936 in Berlin，it became an event of the Olympics.
Basketball was invented by a Canadian college teacher James Naismith，who was born in 1861.When he was at college，his teacher asked the class to think of a game that could be played in the winter.Dr.Naismith created a game to be played inside on a hard floor.Dr.Naismith divided the men in his class into two teams and taught them to play his new game.Players on the same team must work together to help each other get the ball in the other team's basket.At the same time，they need to stop the competing team from getting the ball into their own basket.
Today，the popularity of basketball has risen around the world，with many young people dreaming of becoming famous players.In China，you can sometimes see people playing basketball in parks，schools and even factories.Basketball has not only become a popular sport to play，it has also become a more popular sport to watch.Though America's NBA games are the most famous，the CBA games are becoming popular in China.The number of foreign players，including Chinese players，in the NBA has increased.And there are also more and more foreign players in the CBA.Many young people look up to these basketball heroes and want to become like them.These stars encourage young people to work hard to achieve their dreams.
（1）What's the passage about？Does it have a long history？
（2）How was basketball invented？
（3）What's the most important event in basketball history？
（4）What are the famous basketball groups around the world？
（5）What do basketball stars encourage young people to do？
