A
People can't survive without food. Long ago, early people couldn't grow crops, so they had to live by hunting animals and gathering grains. After a tribe (部落) had lived in an area for some time, its food supply would begin to reduce. Then the tribe had to move to new hunting grounds where there was more food.
This way of life caused special problems for the tribes. They were forced to depend on luck, as well as on their hunting skills. If they could find no game, the whole tribe would be in danger of starving. And when the hunters had good luck one day, they were not sure to find game the next time. The tribes moved often because much land was needed to support their people.
As time passed by, people learned that they could grow their food. At first, the women of tribes collected patches of wild grain. Later, people discovered that they could plant their own seeds. Farming slowly became a way of life.
As people turned away from hunting to farming, their life changed. When the food supply became richer and richer, they no longer moved from place to place. The success of their crops depended partly on the weather, but there were also things they could do to help crops grow.
In the past, a tribe had to travel many miles for food. Now, only a small amount of land was necessary to feed the whole tribe. The early tribe could grow in size because farming provided a way to feed people.
人要生存就离不开食物。我们的祖先最初是靠种植来获取食物的吗？本文介绍了农业是如何成为人类的一种生存方式的。
1．Why did the early tribes move so often?
A．They enjoyed travelling around.
B．They had to find enough food.
C．They did not like to stay in one place.
D．They liked to go hunting everywhere.
答案：B
解析：细节理解题。根据第一段第三、四句“After a tribe (部落) had lived in an area for some time, its food supply would begin to reduce. Then the tribe had to move to new hunting grounds where there was more food.”可知答案为B。
2．The underlined word “game” in Paragraph 2 probably means “ ”．
A．游戏 B．比赛
C．猎物 D．赌博
答案：C
解析：词义猜测题。根据第二段第二、三句“They were forced to depend on luck, as well as on their hunting skills. If they could find no game, the whole tribe would be in danger of starving.”得知，他们靠运气和打猎技术活下来，如果找不到猎物，整个部落会处于挨饿的境地。故答案为C。
3．When farming provided enough food to people, .
A．the women didn't do any work at all
B．the tribe could grow larger and life became steady
C．they did not move at all
D．they no longer went hunting
答案：B
解析：细节理解题。根据文章最后一句“The early tribe could grow in size because farming provided a way to feed people.”可知B项正确。
