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三、回答问题
KEY→P22
范畴:人与自然 主题:动物研究 体裁:说明文 难度:★★★ 建议用时:8分钟 评价:/5
Over the past several years, scientists have had a lot of groundbreaking research about how animals sleep. One surprising discovery is that chinstrap penguins(帽带企鹅) take up to 10,000 little naps(打盹) a day. Another finding is that some birds are able to sleep while flying. Frigate birds(军舰鸟) nap while flying. These seabirds stay at sea for weeks. When flying over the sea, the birds usually rest half of their brain at a time, so they can stay alert(警惕的) and see where they are going.
A study finds cats spend more than half of their lives sleeping. Horses spend about six hours sleeping every day and they do it standing up! Fish also sleep every day but they have a strange habit. They don't close their eyes when they are sleeping. When ducks sleep, they keep one eye open and half of their brains awake. It helps them stay alert and watch out for dangerous animals.
So what about us? Well, most people sleep for about a third of their lives. The number of the hours you sleep, however, has to do with your age. Most newborn babies spend about 75% of their time sleeping every day! As we get older, we need less sleep. Children need about eleven hours and adults sleep for about eight hours every night.
So, yes, you spend many hours a year sleeping in bed! But you're not just asleep. Your body and your mind relax during this time, but dreams are on the way after a busy day. You may have four to six dreams a night!
——文章选自 BBC Wildlife Magazine
根据短文内容,回答下列问题。每题答案不超过6个词。
1. How many little naps do chinstrap penguins take a day?
2. When do frigate birds nap according to the passage?
3. Why do ducks keep one eye open when sleeping?
4. How many hours do most newborn babies sleep every day?
5. What do you think is the most interesting animal sleep habit?
KEY→P22
范畴:人与自然 主题:动物研究 体裁:说明文 难度:★★★ 建议用时:8分钟 评价:/5
Over the past several years, scientists have had a lot of groundbreaking research about how animals sleep. One surprising discovery is that chinstrap penguins(帽带企鹅) take up to 10,000 little naps(打盹) a day. Another finding is that some birds are able to sleep while flying. Frigate birds(军舰鸟) nap while flying. These seabirds stay at sea for weeks. When flying over the sea, the birds usually rest half of their brain at a time, so they can stay alert(警惕的) and see where they are going.
A study finds cats spend more than half of their lives sleeping. Horses spend about six hours sleeping every day and they do it standing up! Fish also sleep every day but they have a strange habit. They don't close their eyes when they are sleeping. When ducks sleep, they keep one eye open and half of their brains awake. It helps them stay alert and watch out for dangerous animals.
So what about us? Well, most people sleep for about a third of their lives. The number of the hours you sleep, however, has to do with your age. Most newborn babies spend about 75% of their time sleeping every day! As we get older, we need less sleep. Children need about eleven hours and adults sleep for about eight hours every night.
So, yes, you spend many hours a year sleeping in bed! But you're not just asleep. Your body and your mind relax during this time, but dreams are on the way after a busy day. You may have four to six dreams a night!
——文章选自 BBC Wildlife Magazine
根据短文内容,回答下列问题。每题答案不超过6个词。
1. How many little naps do chinstrap penguins take a day?
Up to 10,000.
2. When do frigate birds nap according to the passage?
While flying.
3. Why do ducks keep one eye open when sleeping?
To stay alert.
4. How many hours do most newborn babies sleep every day?
About eighteen hours.
5. What do you think is the most interesting animal sleep habit?
Horses sleep standing up.(言之有理即可)
答案
过去几年,科学家对动物睡眠有诸多重大发现。帽带企鹅一天小睡达一万次,军舰鸟能飞行时打盹,猫大半生在睡觉,马站着睡,鱼睡觉不闭眼,鸭子睡时睁一眼且半个大脑清醒。人类睡眠时长与年龄相关,婴儿睡眠占比大,成人约八小时。
1. Up to 10,000. 根据"One surprising discovery is that chinstrap penguins take up to 10,000 little naps a day."可知答案。
2. While flying. 根据文中"Frigate birds nap while flying."可知,军舰鸟在飞行时打盹。
3. To stay alert. 根据文中"When ducks sleep, they keep one eye open and half of their brains awake. It helps them stay alert and watch out for dangerous animals."可知,鸭子睁一只眼睡觉是为了保持警惕。
4. About eighteen hours. 由第三段中"Most newborn babies spend about 75% of their time sleeping every day!"可计算出大多数新生儿每天约睡 18 个小时。
5. Horses sleep standing up.(言之有理即可)
1. Up to 10,000. 根据"One surprising discovery is that chinstrap penguins take up to 10,000 little naps a day."可知答案。
2. While flying. 根据文中"Frigate birds nap while flying."可知,军舰鸟在飞行时打盹。
3. To stay alert. 根据文中"When ducks sleep, they keep one eye open and half of their brains awake. It helps them stay alert and watch out for dangerous animals."可知,鸭子睁一只眼睡觉是为了保持警惕。
4. About eighteen hours. 由第三段中"Most newborn babies spend about 75% of their time sleeping every day!"可计算出大多数新生儿每天约睡 18 个小时。
5. Horses sleep standing up.(言之有理即可)
