An interesting new sport in the United States is sky diving．

1．________

People who like this sport often form a club．The member

2．________

of the club get into the airplanes and fly highly above the clouds．

3．________

When it is time, each person jumps out of the airplane but

4．________

fall toward the earth at very high speed．All the members have

5．________

parachutes(降落伞), but they do not close the parachutes until

6．________

near the ground．Seeing from the ground, they look like big birds．

7．________

The sky divers say that they sometimes feel as birds, too．

8．________

Some people like swim in the ocean or to play in the snow,

9．________

but the favourite place for the sky divers is that the sky．

10．________