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A、The body temperature drops and the heartbeat and breathing slow down. B、The body temperature drops and the heartbeat stops. C、
A、The body temperature drops and the heartbeat and breathing slow down. B、The body temperature drops and the heartbeat stops. C、
admin
2010-04-30
22
问题
Some animals remain and stay active in the winter. They must adapt to the changing weather. Many make changes in their behavior or bodies. To keep warm, animals may grow new, thicker fur in the fall. On weasels and snowshoe rabbits, the new fur is white to help them hide in the snow.
Food is hard to find in the winter. Some animals, like squirrels, mice and beavers, gather extra food in the fall and store it to eat later. Other animals eat different kinds of food as the seasons change. The red fox eats fruit and insects in the spring, summer and fall. In the winter, it can’t find these things, so instead it eats small rodents.
Animals may find winter shelter in holes in trees or logs, under rocks or leaves, or underground. Some mice even build tunnels through the snow. To try to stay warm, animals like squirrels and mice may huddle close together. Certain spiders and insects may stay active if they live in frost-free areas and can find food to eat. Also, some fish stay active in cold water during the winter.
Some animals "hibernate" for part or all of the winter. This is a special, very deep sleep. The animal’s body temperature drops, and its heartbeat and breathing slow down. It uses very little energy. In the fall, these animals get ready for winter by eating extra food and storing it as body fat. They use this fat for energy while hibernating. Some also store food like nuts or acorns to eat later in the winter.
选项
A、The body temperature drops and the heartbeat and breathing slow down.
B、The body temperature drops and the heartbeat stops.
C、The body temperature rises and breathing speeds up.
D、The body movements decrease and the heartbeat slows down.
答案
A
解析
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0
大学英语六级
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