第四部分 动物世界(六)
26. How Do Animals Spend The Winter? (II)
动物如何过冬(二)
除了迁徙之外,还有什么办法应对严冬?在秋天里早做打算,身上长出新的皮毛可以御寒,储存大量额外的食物以备冬天食用。在树洞中,木头里,岩石下甚至地下一个掩蔽处藏了起来就可过冬了,或者干脆来个冬眠吧。
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. Some, like rabbits and deer, spend winter looking for moss, twigs, bark and leaves to eat. 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 not 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. There are a few insects, like the winter stone fly, crane fly, and snow fleas, that are normally active in winter. 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. Bears, skunks, chipmunks, and some bats hib
ernate.
Comprehension Questions:
A. to remain and stay active
B. to keep warm
C. because they can’t find shelter for themselves
D. because they don’t want to hibernate
4. Which of the following statements is not true according to the passage? ______
A. The last paragraph is different in meaning from the other ones because hibernation of animals is mentioned.
B. During hibernation, the animal's body temperature drops, and its heartbeat and breathing slow down. It uses very little energy.hibernating
C. In the autumn, animals like bears get ready for winter by eating extra food and storing it as body fat. They use this fat for energy while hibernating.
D. Some animals hibernate in the winter because it is a special, very deep sleep
(ADBD)
27. Animals And Aestivation
动物和夏眠
动物冬眠不新鲜,还有动物夏眠的?没错,冬眠的起因大多是动物耐受不了严寒。而夏眠的原因,则是夏天的干燥与炎热。类似蚯蚓这类需要保持身体湿润的动物就迫切地需要夏眠。这些夏眠的动物有什么特征?它们是怎样夏眠的?体温会否与冬眠一样有所下降?下面的文章会告诉你答案。
As winter draws near, many of the cold-blooded animals hibernate till spring comes. And everybody knows they will be awake months later, crawling and walking around and looking for food.
But do you also know that some animals are used to a summer sleep, which is called aestivation? Most animals are active during the summer, singing and dancing freely. The aestivation animals, however, will have a long sleep in a cool place to escape the drought and sweltering summer days.
A. they are not active animals.
B. the weather is too hot and sweltering.
C. they have nothing to eat during the summer.
D. their body temperature is not high enough.
2. When does the aestivation animal start and end its aestivation? ______
A. It starts in November and ends in February the next year.
B. It starts in March and ends in April.
C. It starts in August and ends in October.
D. It starts in January and ends in March.
3. Which of the following statements is not true? ______
A. The porcupine in Southeast Africa lives mainly on worms.
B. Hibernating animals are active in summer.
C. When the animal is in its aestivating state, its body temperature doesn't drop.
D. The body temperature of an aestivation animal doesn't drop in winter.
4. Which of the following statements is true according to the passage? ______
A. Half of the animals hibernate and another half aestivate.
B. Most animals in Africa need aestivation.
C. Aestivation animals do not all aestivate in trees.
D. 'Those that eat earthworms as their main food must be aestivation animals.
5. We can conclude from the last paragraph that ______
A. the body temperature drops while the animal sleeps.
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