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Sporting activities are essentially modified forms of hunting behavior. Viewing biologically, the modern footballer is revealed as a member of a disguised __1__
hunting pack. His killing weapon has turned into a harmless football and his prey into a goal-mouth. If his aim is inaccurate and he scores a goal, __2__
enjoys the hunter’s triumph of killing his prey. __3__
To understand how this transformation has taken place we
must briefly look up at our ancient ancestors. They spent over a million __4__
year evolving as co-operative hunters. Their very survival depended on success __5__
in the hunting-field. Under this pressure their whole way of life, even if their __6__
bodies, became radically changed. They became chasers, runners, jumpers,
aimers, throwers and prey-killers. They co-operate as skillful male-group __7__
attackers.
Then, about ten thousand years ago, when this immensely long formative __8__
period of hunting for food, they became farmers. Their improved intelligence,
so vital to their old hunting life, were put to a new use—that of penning, __9__
controlling and domesticating their prey. The food was there on the farms,
awaiting their needs. The risks and uncertainties of farming were no longer __10__
essential for survival.
参考答案及解析:
1. 将viewing改为viewed
非谓语动词view和句子的主语是逻辑动宾关系。
2 .将inaccurate改为accurate
如果真的目标不准确，也就不可能进球了(he scores a goal)。
3 .在enjoys前面加he
由于前面if his aim is accurate and he scores a goal 是条件状语从句，因此可见这里是主句，主句的主语he是不可以省略的。
4 .将look up at的up省略
5 .将year变为复数
6 .将if去掉
7 .将co-operate 改为co-operated
8 .将when改为after
9.将were改为was
该谓语动词的主语是Their improved intelligence，是单数。
10. 将farming改为hunting
纵观全文，在从事种植业后，“狩猎”而不是“农耕”的危险和不确定性对人们的生存已经不再那么重要了。