[填空题]
Sporting activities are essentially modified forms of some old
style hunting behavior. Viewed{{U}} (36) {{/U}}, the modern football
player can be{{U}} (37) {{/U}}as a member of a disguised hunting pack.
His killing{{U}} (38) {{/U}}has turned into a harmless football and his{{U}}
(39) {{/U}}into the goal-posts. If his aim of the very hunting is
enough{{U}} (40) {{/U}}and be scores a goal, he enjoys the hunter’s{{U}}
(41) {{/U}}of killing his prey.
To understand how
this{{U}} (42) {{/U}}has taken place we must briefly look back at our{{U}}
(43) {{/U}}ancestors. Once upon a time, they hunted everyday, and
finally became good at it. They spent over a million years evolving into
cooperative hunters. Their very survival depended on success in the
hunting-field. At that time, they knew nothing about growing plants.{{U}}
(44) {{/U}}. They became chasers, runners, jumpers, aimers, throwers
and prey-killers. Cooperation made the