Question

Can you imagine traveling to work in a one-man submarine?

Scientists believe that someday one-man submarines will be as numerous as automobiles today. One says,  “One day soon,  men will walk on the ocean floor as they do on the street. ” Perhaps during your life time,  people will travel,  work and live under the sea.

Ships carrying oil and articles of trade will move beneath the ocean. Passenger ships will be built to travel underwater,  where storms cannot delay them or make people seasick. Special underwater ships will be designed for mining,  fishing,  and exploring unknown areas. For military use,  there may be submarines that can fly and then dive underwater to approach the battle area without being seen.

First, however, the human problems associated with living in the ocean will need to be studied in detail. Many of these problems are the same as the problems of living in outer space: pressure, lack of oxygen, and weightlessness. Already scientists have begun to study these problems.

In 1963 and 1964 scientists and navy divers lived and worked underwater for several days in two projects which were called Sealab Ⅰ and Sealab Ⅱ. The Sealab Ⅱ experiment kept the scientists and divers 215 feet below the surface for thirty days, studying marine biology,  temperature,  pressure,  currents,  and ocean bottom geology.

Many puzzling questions remain unanswered,  however. Man’s warm blood makes it difficult for him to live long in the sea without some kinds of warmth. Can our blood be changed to fit new water surroundings?  What will happen to our muscles if we live in the water very long?  Will they become soft away from our usual land existence?  Will bones become weak and our blood pressure change?  Scientists are searching for answers.

By studying plants and animals deep in the ocean,  scientists may find a cure for some of our most serious human diseases. We may learn to use plants to increase our world food supply. Engineers may learn to use the power of the sea by building huge walls to catch the force of the tides.

61. In the passage, the author is talking to us about the problems of______ .

A. pressure, lack of oxygen, and weightlessness in the sea

B. living, working below the ocean

C. underwater submarine

D. walking on the ocean floor

62. According to the author, in future, passenger ships might be the ones that can_______ .

A. be used for mining, fishing and exploring unknown areas

B. carry oil and articles of trade

C. travel underwater, not be affected by storm

D. fly and then dive underwater

63. Whether we live in the sea or in outer space, first of all we should think of______

A. health and food

B. safety and temperature

C. temperature and oxygen

D. pressure,  oxygen and gravity

64. Which of the following is TRUE?

A. Sealab I worked for more than thirty days below the surface.

B. Sealab Ⅱ worked for thirty days under the sea for exploring unknown areas.

C. Sealab Ⅱ kept the scientists over 200 feet below the surface,  studying temperature,  pressure and so on.

D. Sealab I and Sealab Ⅱ kept the scientists 215 feet below the surface for thirty days.

65. To become used to living in the sea, we should try to_______ .

A. increase the amount of our blood

B. keep our blood warm

C. soften our muscles

D. warm our bones

Answer 1

本文介绍了将来人类可能在海底工作、生活。但在海底生活或工作有许多难题，有些难题现在仍然未被解决。

61.【解析】选B。主旨大意题。本文介绍了将来人类可能在海底旅行、工作、生活。但在海底生活或工作有许多难题，有些难题现在仍然未被解决。

62.【解析】选C。细节理解题。根据第三段第二句Passenger ships will be built to travel underwater,  where storms cannot delay them or make people seasick. 可知。

63.【解析】选D。细节理解题。根据第四段第二句Many of these problems are the same as the problems of living in outer space:  pressure,  lack of oxygen,  and weightlessness. 可知在海底或太空居住我们首先要考虑压力、氧气和重力。

64.【解析】选C。细节理解题。根据第五段第二句The Sealab Ⅱ experiment kept the scientists and divers 215 feet below the surface for thirty days,  studying marine biology,  temperature,  pressure,  currents,  and ocean bottom geology. 可知。

65.【解析】选B。细节理解题。根据倒数第二段Man’s warm blood makes it difficult for him to live long in the sea without some kinds of warmth. 可知为了在海底生活，我们要保持血液温暖。