1 . 阅读下面材料,在空白处填入适当的内容(1 个单词)或括号内单词的正确形式。
An American game that has traveled well is basketball. 1 is now played by more than 250 million people worldwide in an 2 (organize) way, as well as by countless others in informal games. Basketball began in 1891, when a minister, called James Naismith, 3 (ask) to teach a class of young men in Springfield, Massachusetts.
The class was well known 4 being difficult to teach and Naismith was told to invent a new game 5 (keep) the young men busy. Then it 6 (be) winter and very cold outside. It needed to be a game that could be played indoors.
Naismith thought back to his childhood in Canada where he and his friends had played a game which had involved (需要) trying to hit 7 e big stone off a rock with smaller stones. He also remembered 8 (watch) rugby (橄榄球) players throw a ball into a box or fruit basket 9 had been raised up. Naismith made up the 10 (rule) for the game in less than an hour, Most of them still apply in some form today.