题目内容
The journey two naval (海军的) officers made some time ago to the very deepest point on the earth makes us realize how much of the world still remains to be explored. The two men went down seven miles to the bottom of the Pacific Ocean inside a small steel ball called a “bathyscaphe” (探海球) to find out if there are any ocean currents or sings of life.
It was necessary to set out early, so that the “bathyscaphe” would come to the surface in daylight, and so be easily found by the mother ship which would be waiting for it. The drivers began preparations at dawn and soon afterwards, when all was ready, the steel ball disappeared under the surface of the water.
In time, the temperature dropped to freezing-point and the men trembled (颤抖) inside the ball. They kept in touch with the mother ship by telephone describing how they felt. Then, at a depth of 3,000 feet, the men were surprised by a sudden, loud noise, even the smallest hole in the ball would have meant instant （立即的）death. Luckily, though, it was only one of the outer windows that had broken. Soon afterwards, the “bathyscaphe” touched the soft ocean floor raising a big cloud of “dust” made up of different kinds of small, dead sea animals. Here, powerful lights lit up the dark water and the men were surprised to see fish swimming just above them quite uncontrolled by the very large water-pressure. But they did not dare to leave the lights on for long, as the heat from them made the water boil. Quite unexpectedly, the telephone began working again and the weak but clear voices of the officers wre heard on the mother ship. After a stay of thirty minutes the men began their journey up, arriving three hours later, cold and wet through, but none the worse for their experience.
71. The officers started their journey at dawn ________.
A. because they could return in 24 hours
B. because the sea was calm then
C. when the sun was not strong
D. so that they could return before dark
72. What did the officers find out at the bottom of the sea?
A. Different dead sea animals . B. Signs of life.
C. Nothing but a big cloud D. Only dust.
73. The journey to the bottom of the sea helped us to realize that ________.
A. much of the world hasn't yet been explored
B. there are not any sings of life at the bottom of the sea
C. strong water-pressure has great effect on fish
D. powerful lights cannot be turned on at the ocean floor
74. Which of the following is closest in meaning to the underlined part?
A. They were cold and wet through ,which was the worst thing at all.
B. They were even worse than cold and wet through at the bottom of the sea.
C. Considering what they had just experienced, being cold and wet through was even better.
D. For such an experience, being cold and wet through was not bad for them at all.
75. The best title for his passage might be ________.
A. The invention of a “bathyscaphe”
B. Two naval officers should be awarded
C. The adventure to the bottom of the ocean
D. The ocean floor is soft and dusty
