1 . 阅读下面短文,在空白出填入1个适当的单词或括号内单词的正确形式。
Chinese jump rope, also known as tiaopijin, is a children’s game resembling hopscotch (跳房子). One reason 1 its popularity is the fact that although the moves can be quite 2 (challenge), the game itself is very simple. There’s no need for players 3 (buy) expensive equipment since what they need is only a rope.
The game 4 (begin) in 7th-century China. In the 1960s, children in the West World adopted the game. The game is 5 (typical) played in a group of at least 3 players with a rope about 16 feet in 6 (long) tied into a circle. Two players face each other standing 9 feet apart, and position the rope around 7 (they) ankles so that it is tightly stretched. The third player stands between the two sides of the rope and tries to perform a series of moves without making 8 error or pausing.
There are many jump patterns, most of 9 are accompanied by a song. This is sometimes called the “first level”. The jumper tries to complete the chosen pattern. If the moves 10 (complete) successfully, then the rope is moved farther up and the series is repeated.