Imagine going to sleep in October and
waking up in May! Well, marmots and ground squirrels stay warm by sleeping all
winter. All this time, they do not wake up once. This special kind of sleep is
called hibernation. During this sleep, the heart slows down, and the animal
breathes more slowly, it doesn’t move around, so it uses less energy.
Animals like the marmot and the ground squirrel inhabit the coldest parts
of the world. They need special talents to survive in these frigid places. Their
furry coats keep them snug when the temperature falls below zero. It often gets
this cold in the Arctic, a land that is just below the North Pole.
Before the long winter, some animals eat and eat. After a while, they grow
very fat. When the winter comes, they live on the fat saved up in their bodies.
Layers of fat keep an animal warm.< A. the Arctic Summer B. Marmots and Squirrels C. Keeping Warm in the Arctic D. Freezing Temperatures
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[单项选择] Passage Three
Imagine going to sleep in October and
waking up in May! Well, marmots and ground squirrels stay warm by sleeping all
winter. All this time, they do not wake up once. This special kind of sleep is
called hibernation. During this sleep, the heart slows down, and the animal
breathes more slowly, it doesn’t move around, so it uses less energy.
Animals like the marmot and the ground squirrel inhabit the coldest parts
of the world. They need special talents to survive in these frigid places. Their
furry coats keep them snug when the temperature falls below zero. It often gets
this cold in the Arctic, a land that is just below the North Pole.
Before the long winter, some animals eat and eat. After a while, they grow
very fat. When the winter comes, they live on the fat saved up in their bodies.
Layers of fat keep an animal warm.< A. to be very fat B. to have small ears C. to eat green grass D. to have thick and soft hairs
[单项选择] Passage Two
Imagine going to your doctor with a
complaint of frequent headaches. Your doctor takes a prescription pad and writes
a word on it. The word isn’t "aspirin", it’s "Mozart". Many
kinds of music can stir the imagination and produce strong feeling. For some
people, romantic composers such as Chopin and Tchaikovsky enhance feelings of
love and compassion. Religious and spiritual music can help some people feel
peace or lessen their pain. But one musician seems to have a unique ability to
heal the human body—Mozart. Scientists have found Mozart’s music to be
remarkable in its ability to calm its listeners. It can also increase their
perception, and help them express themselves more clearly. Many
amazing cases have been documented using Mozart as a healing aid.For example, a
tiny premature baby (早产婴儿) named Krissy, who weighed just A. the influence of music on people’s mood B. the miracle effect of Mozart’s music on people C. the difference between Mozart and other musicians D. the similarity between music and food
[单项选择]Imagine going to sleep in October and waking up in May! Well, marmots and ground squirrels stay warm by sleeping all winter. All this time, they do not wake up once. This special kind of sleep is called hibernation. During this sleep, the heart slows down, and the animal breathes more slowly, it doesn’t move around, so it uses less energy. Animals like the marmot and the ground squirrel inhabit the coldest parts of the world. They need special talents to survive in these frigid places. Their furry coats keep them snug when the temperature falls below zero. It often gets this cold in the Arctic, a land that is just below the North Pole. Before the long winter, some animals eat and eat. After a while, they grow very fat. When the winter comes, they live on the fat saved up in their bodies. Layers of fat keep an animal warm. Arctic animals also have other ways to beat the cold. Rabbits in the Arctic, for example, have very small ears. Small ears keep heat in, while big ears A. the Arctic Summer B. Marmots and Squirrels C. Keeping Warm in the Arctic D. Freezing Temperatures
[单项选择] Passage Three
Imagine eating everything delicious you want with
none of the fat. That would be great, wouldn’t it New "fake
fat" products appeared on store shelves in the United States recently, but not
everyone is happy about it. Makers of the products, which contain a compound
called olestra, say food manufacturers can now eliminate fat from certain foods.
Critics, however, say the new compound can rob the body of essential vitamins
and nutrients and also cause unpleasant side effects in some people. So it’s up
to consumers to decide whether the new fat-free products taste good enough to
keep eating. Chemists discovered olestra in the late 1960s, when
they were searching for a fat that could be digested by infants more easily.
Instead of finding the desired fat, the researchers created a fat that can’t be
digested at all. Normally, A. it facilitates the absorption of vitamins by the body B. it passes through the intestines without being absorbed C. it helps reduce the incidence of heart disease D. it prevents excessive intake of vitamins
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