题目内容
阅读理解
The Antarctic (南极) is a continent of great size —equal almost to Europe and Australia put together-yet it has no permanent inhabitants. (居民) Only those who manage weather stations and the bases from which parties of explorers set out, live there. Some go only for one year, many for two, hut never Longer, unless the ship which is to bring them out cannot reach their base. In that event they must make the best of it and settle down to another year’s work.
Of all this vast continent only about one per cent is exposed (暴露的) rock; all the rest is covered with a mantle of snow and ice, which varies from a few feet to as much as two miles in depth. In all there are over five million square miles covered with ice, and this huge area has a tremendous (极大的) cooling effect on the air which moves over it. It is true to say that the Antarctic controls the weather of the southern half of the world.
Around this dome-shaped (圆屋顶) continent lies the great Southern Ocean, formed from the southern parts of the Atlantic, Pacific and Indian Oceans. Together the Antarctic continent and the Southern Ocean form an area which almost covers a fifth of the world’s surface.
All round the Antarctic the sea freezes during the winter months of April to October, making it impossible for ships to reach the coast. But in summer most of this ice breaks up and begins to move with the winds and currents as great fields of ice
In winter the sun disappears daily for a longer and longer time as one gets nearer to the Pole. Just south of the Antarctic Circle there is one day in the winter when the sun never rises above the horizon, and at the same point in the summer there will be one day when it never sets. These periods increase as one travels south, until, at the Pole itself, the year is divided into a six-month night and a six-month day. Small wonder then that more and more scientists are visiting the region to acquire new knowledge which will help us to have a better understandling of the earth as a whole.
1．The Antarctic is ________.
[ ]
A．larger than Europe and Australia put together
B．equal to Europe and Australia put together
C．a little smaller than Europe and Australia put together
D．smaller than both Europe and Australia
2．According to the text,________.
[ ]
A．no one has ever lived in the Antarctic
B．no one has ever lived in the Antarctic for more than one year
C．no one has ever lived in the Antarctic for more than two years
D．no one has ever lived in the Antarctic for more than three years
3．The meaning of the word “permanent”(in Line 2, Para. 1)is ________.
[ ]
4．At the South Pole itself,________.
[ ]
A．the sun never sets
B．the sun never rises above the horizon
C．the sun appears daily
D．there are six months every year when the sun never sets
5．Which of the following statements is NOT true?
[ ]
A．It is very cold all the year round in the Antarctic Continent.
B．The sea around the Antarctic is frozen all the year round.
C．Besides snow and ice, there is some exposed rock in the Antarctic Continent.
D．The Antarctic has a great influence on the weather of the South Hemisphere.
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