题目内容
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Animals And Natural EnvironmentIf you live in a country in northern Europe, you'll share your garden with all sorts of birds, animals and insects (昆虫). The swallows (燕子) will travel 8,000 kilometers or more to southern Africa. They'll come back in the spring.
In warm countries, where the winters are not very long or very cold, hibernation is not necessary. But in very cold parts of the world, like the far north of Russia, many animals hibernate; the ground is so hard that they cannot make a deep hole to spend the winter in. And animals in a large part of the northern hemisphere (北半球) spend every winter fast asleep.
A bear is a half-hibernating animal. A she-bear chooses her wintering place much more carefully because she is likely to have cubs(小熊) in it. It is nearly always a cave, and she covers the floor with grass or leaves to be sure of extra warmth. She hides as much food as possible in it. She sleeps until January, when the cubs are born. Even then she doesn't try to come out of hibernation. The cubs stay with her, drinking her milk and growing bigger and stronger week by week until spring arrives. To keep the milk supply going, the she-bear eats the food from her secret stores.
1． In northern Europe, people ___________all kinds of birds, animals and insects.
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2．The swallows travel very long distance from the north to the south, because ___________.
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A． they like travelling
B． they want to find their food there
C． they want to visit their friends there
D． the climate is warm in the south in winter
3．In warm places, animals ___________.
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A． need hibernating
B． don't need hibernating
C． never go out in winter
D． do much exercise
4． According to the passage, a she-bear has her babies in ___________.
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5． In the last sentence, “going”means ___________.
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