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A、It is easier for him to find food and water in the wild
B、He likes the sun and rain and trees and flowers in the wild
C、He can enjoy freedom by living in the wild
D、He can avoid the danger of being kill.
It was necessary to set out early, so that the ball would come to the surface in daylight, and so be easily found by the mother ship which would be waiting for it. The divers began preparations early in the morning and soon afterwards, when all was ready, the steel ball disappeared under the surface of the water.
The divers felt as if they were going down steps as they passed through warm and cold layers of water. In time, the temperature dropped to freezing point. They kept in touch with the mother ship by telephone telling how they felt. Then, at a depth of 3, 000 feet, the telephone stopped working and they were quite cut off from the outside world. All went well until some four hours later at 30, 000 feet, the men were frightened by a loud, cracking noise: even the smallest hole in the ball would have meant instant death. Luckily, though, it was only one of the outer windows that had broken. Soon afterwards, the ball touched the soft ocean floor raising a big cloud of “dust” made up of small dead sea-creatures. Here, powerful lights lit up the dark water and the men were surprised to see fish swimming just above them quite untroubled by the great 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 faint but clear voices of the divers were heard on the mother ship seven miles away. 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.
The purpose of the divers’ journey to the deepest point on the earth was to find __________.
A.if there are water currents and life in the great depths
B.if people can stand the severe cold in the great depths
C.if there are steps in the great depths
D.if the telephone works well in the great depths
The divers set out early in the morning so that __________.A.they could return to the surface during the day
B.they could see at the bottom of the ocean
C.they could avoid the cold at night
D.they could stay long at the bottom
Which of the statements is true？A.The ocean water temperature decreases steadily with the depth.
B.There are steps on the way to the bottom of the Pacific Ocean.
C.There are steps between the water layers of different temperatures.
D.The water layers of different temperatures made the divers feel as if they were going down steps.
As the divers went down to the ocean floor, the telephone __________.A.kept working all the time
B.stopped working at a depth of 3, 000 feet and began working again after they reached the bottom
C.stopped working at a depth of 3, 000 feet and began working again at 30, 000 feet
D.stopped working at a depth of 3, 000 feet and began working again when they returned t the same depth
On the ocean floor, the divers found that __________.A.there was no life but some small dead sea-creatures
B.fish were swimming as freely as they do near the surface
C.fish were not swimming freely in the dark water
D.fish were not swimming freely under the high water-pressure
A、confidence
B、patience
C、hard work
D、silence
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