试题正文
Two Creatures of the Past – Mammoths and Mastodons
For questions 1-12, read the text below and decide which answer (A, B, C or D) best fits each space. There is an example at the beginning (0).
Example:
|
0 |
A far |
B distant |
C remote |
D distinct |
The elephant has
some (0)...B.....relatives called mammoths, which lived in the
Stone Age. More than 15,000 years ago people painted pictures of them on cave
walls. Then, astonishingly, in 1799, a man walking along the banks of the River
Lena in Siberia 正确
正确答案：made
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startling discovery. Peering into a wall of ice, he saw a shape of a massive,
hairy mammoth, apparently looking out at him. He immediately ran 正确
正确答案：away
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terror, but several days later he 正确
正确答案：found
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courage to return and cut the mammoth’s tusks – its two enormous teeth – out of
the ice to sell them. Mammoth tusks are the biggest teeth of any known
creature, some 正确
正确答案：reaching
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length of five metres. These tusks were put to good use, protecting the
mammoths’ young from other animals, and brushing away snow.
To most of us, mammoths
are probably the most 正确
正确答案：familiar
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the elephant’s extinct relatives, but thousands of years earlier, in the
woodlands of eastern North America, lived another of the elephant’s relatives
called the mastodon. Like mammoths, mastodons may also have had a hairy coat,
but 正确
正确答案：while
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mainly ate grass on the plains, mastodons 正确
正确答案：preferred
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eat twigs and leaves.
We do not know why
mastodons 正确
正确答案：became
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However, computer studies of the decrease in mammoth 正确
正确答案：numbers
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that it was a particular 正确
正确答案：combination
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over-hunting by humans, and 正确
正确答案：changes
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the climate at that time which 正确
正确答案：led
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their disappearance.