When a group of people work together to reach the same goal (目标) , they make up a team. Teamwork is very important as men try to learn more about the world in which we ___1___.

   In 1957, a team of eighteen men from the United States ___2___ the winter at the South Pole. They were there ___3___ the secrets of the earth and the sky.

   The South Pole is at the bottom of the world. During its winter, the sun ___4___ rises. The men had to face the darkness of a six-month night, as well as the world’s worst ___5___.

   The men lived in a group of buildings joined together by tunnels (隧道,地道). They were cut off from the rest of the ___6___. During the long winter, they could not be reached even by plane.

   The men depended on (依靠) one ___7___ for company. Everyone took turns working in the “snow mine”. This was the giant (巨大的) cave dug into the ice beneath (在……下方) their camp (营地,帐篷). There, they dug out ___8___ snow needed as a water supply.

   Each man also had his own important job to do. There was a cook and a doctor. There were scientists and men ___9___ were trained in other jobs. Working together, they proved that men can live and work ___10___ the South Pole (南极).

1.(   ) A. have           B. live          C. notice        D. turn

2.(   ) A. spent           B. cost          C. paid          D. took

3.(   ) A. learning         B. learn         C. to study       D. studying

4.(   ) A. once           B. sometimes     C. not          D. never

5.(   ) A. temperature      B. weather       C. snow         D. sunshine

6.(   ) A. world          B. city          C. village           D. gold

7.(   ) A. the other        B. other         C. an other       D. another

8.(   ) A. clean           B. cleanest       C. clearly           D. cleaned

9.(   ) A. what           B. who          C. when         D. whether

10.(   ) A. at            B. in               C. over          D. on

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