雅思机经听力试题--动物睡眠和人类睡眠及答案解析.doc

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1、雅思机经听力试题-动物睡眠和人类睡眠及答案解析(总分：16.00，做题时间：120 分钟)一、睡眠对动物的重要性(总题数：1，分数：2.00)Listen to the conversation and circle the appropriate letter. （分数：2.00）(1).What will happen if animals do not sleep enough?（分数：1.00）A.They will get hypertension.B.They will suffer from attack.C.They will definitely die.(2).Accord

2、ing to the research, which animal will sleep the most?（分数：1.00）A.elephantB.humanC.cat二、海豚的睡眠(总题数：1，分数：4.00)Listen to the statement and complete the blanks below with NO MORE THAN THREE WORDS. （分数：4.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_三、鸟的睡眠(总题数：1，分数：2.00)Listen to the statement and complete the following

3、 sentences with ONE WORD ONLY.（分数：2.00）(1).Birds standing on 1 of group have light sleep, but birds which stand in center of group have deep sleep. （分数：1.00）填空项 1:_(2).While sleeping most birds dont tuck their heads under their wing but rest their heads on their 1 .（分数：1.00）填空项 1:_四、马的睡眠(总题数：1，分数：3.

4、00)Listen to the statement and complete the following sentences with NO MORE THAN TWO WORDS.（分数：3.00）(1).When horses get older, they take 1 naps.（分数：1.00）填空项 1:_(2).Most of the time horses choose to rest and fall asleep in a 1 position.（分数：1.00）填空项 1:_(3).Due to fearing of predators, horses often do

5、 most of their sleeping during 1 .（分数：1.00）填空项 1:_五、睡眠对人类的好处(总题数：1，分数：2.00)Listen to the statement and answer the questions with NO MORE THAN THREE WORDS.（分数：2.00）(1).According to the statement, whats sleep good for in two distinct ways? （分数：1.00）填空项 1:_(2).What are associated with the formation of

6、particular types of memory during different stages of sleep? （分数：1.00）填空项 1:_六、睡眠问题(总题数：1，分数：3.00)Listen to the statement and complete the blanks below with NO MORE THAN THREE WORDS. （分数：3.00）填空项 1:_填空项 1:_填空项 1:_雅思机经听力试题-动物睡眠和人类睡眠答案解析(总分：16.00，做题时间：120 分钟)一、睡眠对动物的重要性(总题数：1，分数：2.00)Listen to the con

7、versation and circle the appropriate letter. （分数：2.00）(1).What will happen if animals do not sleep enough?（分数：1.00）A.They will get hypertension.B.They will suffer from attack. C.They will definitely die.解析：woman: Hi, Jack! Recently Im planning to write a report on animals sleep, but after all I stil

8、l havent got a clue. Could you help me? MAN: Sure! As you know, sleep is a way to relax and save energy for humans and animals. Take humans for example, a good nights sleep will make us feel more active and alert on the following day. But lacking of sleep will be associated with increased blood pres

9、sure and cholesterol levels. woman： Yeah. Indeed, sleep plays an important role in humans lives. What about other animals? MAN： Animals need sleep to stay alert while they are awake. If they do not sleep enough, they are most likely to be attacked. woman: Thats to say, the lack of sleep is more horr

10、ible than food deficiency. And I guess different animals must have different sleeping time. MAN: Absolutely! According to one research, smaller animals need more sleep than larger animals. Bats, for example, sleep for more than 20 hours per day, while elephants sleep for about 5 hours or less. woman

11、： Its interesting! In a word, a regular sleep is the premise of surviving. How significant sleep is! MAN： Of course! In addition, waking up from sleep is not only a kind of protecting mechanism but also necessary for health and existence. (2).According to the research, which animal will sleep the mo

12、st?（分数：1.00）A.elephantB.humanC.cat 解析：二、海豚的睡眠(总题数：1，分数：4.00)Listen to the statement and complete the blanks below with NO MORE THAN THREE WORDS. （分数：4.00）填空项 1:_ （正确答案：ocean surface/surface）解析：Usually, dolphins could probably sleep anywhere, but it makes sense that they would do it near the surface

13、of the ocean so they can easily come up to breathe. Its not uncommon to see dolphins “logging“, swimming slowly along the surface with very little movement. Presumably, these are dolphins at rest. When dolphins sleep, they often rest one half of their brain at a time. This is called unihemispheric s

14、leep. The brain waves of captive dolphins that are sleeping show that one side of the dolphins brain is awake while the other is in a deep sleep. Also, during this time, one eye is open (the eye opposite the sleeping half of the brain) while the other is closed. This type of sleep was thought to hav

15、e evolved due to the dolphins need to breathe at the surface, but may be necessary for protection against predators, the need for regulation of their internal body temperature. 填空项 1:_ （正确答案：breathe）解析：填空项 1:_ （正确答案：awake）解析：填空项 1:_ （正确答案：predators）解析：三、鸟的睡眠(总题数：1，分数：2.00)Listen to the statement and

16、 complete the following sentences with ONE WORD ONLY.（分数：2.00）(1).Birds standing on 1 of group have light sleep, but birds which stand in center of group have deep sleep. （分数：1.00）填空项 1:_ （正确答案：edges）解析：Like other animals that are active during the day, the principle nighttime activity of birds is s

17、leeping. Birds usually sleep in flocks. Some standing on edges of group have light sleep. Because they must be constantly aware of their surroundings, keeping an ear alert for danger, ready to hop out of bed and move on at a moments notice. However, birds in center of group could have deep sleep. In

18、 addition, while sleeping most birds use the old “wing tuck” method. Actually, birds dont tuck their heads under their wing. Instead they rest their heads on their backs while they nuzzle their beaks into their back feathers. Sleeping with their head tucked on their back allows birds to rest their n

19、eck muscles and also makes for better heat conservation. (2).While sleeping most birds dont tuck their heads under their wing but rest their heads on their 1 .（分数：1.00）填空项 1:_ （正确答案：backs）解析：四、马的睡眠(总题数：1，分数：3.00)Listen to the statement and complete the following sentences with NO MORE THAN TWO WORDS

20、.（分数：3.00）(1).When horses get older, they take 1 naps.（分数：1.00）填空项 1:_ （正确答案：less）解析：The sleeping habits of horses are somewhat different from humans. Horses rest for short periods more frequently. As horses get older, the frequency of the naps becomes less, and they are more likely to rest in a sta

21、nding position. Owing to the forelegs and the hind legs, a horse can lock its knees and fall asleep standing up while not falling down. Lying down is actually more stressful for a horse than standing. In addition, if a predator approaches a sleeping horse while its lying down, the horse may not be a

22、ble to get up fast enough to escape. This fear of predators also leads horses to do most of their sleeping during the day. Sometimes horses take naps lying down which gives them a chance to rest their legs. On a sunny day, you may see a group of horses lying down, but one horse standing up, guarding

23、 the others and keeping an eye out for intruders.(2).Most of the time horses choose to rest and fall asleep in a 1 position.（分数：1.00）填空项 1:_ （正确答案：standing）解析：(3).Due to fearing of predators, horses often do most of their sleeping during 1 .（分数：1.00）填空项 1:_ （正确答案：the day）解析：五、睡眠对人类的好处(总题数：1，分数：2.00)

24、Listen to the statement and answer the questions with NO MORE THAN THREE WORDS.（分数：2.00）(1).According to the statement, whats sleep good for in two distinct ways? （分数：1.00）填空项 1:_ （正确答案：learning and memory）解析：In studies of humans, scientists have discovered that sleep helps learning and memory in tw

25、o distinct ways. First, a sleep-deprived person cannot focus attention optimally and therefore cannot learn efficiently. Second, sleep itself has a role in the consolidation of memory, which is essential for learning new information. While the body is resting, our brain is busy processing our day, a

26、nd making connections between events, feelings, experiences and memories. Although there is no consensus about how sleep makes this process possible, many researchers think that specific characteristics of brainwaves during different stages of sleep are associated with the formation of particular ty

27、pes of memory. In conclusion, sleeping time is the most important time for our brain to shape memories and make the connections, which can make it easier for us to retrieve those memories in the future.(2).What are associated with the formation of particular types of memory during different stages o

28、f sleep? （分数：1.00）填空项 1:_ （正确答案：characteristics of brainwaves /brainwaves characteristics）解析：六、睡眠问题(总题数：1，分数：3.00)Listen to the statement and complete the blanks below with NO MORE THAN THREE WORDS. （分数：3.00）填空项 1:_ （正确答案：sleep problems/sleeping problems/trouble sleeping）解析：Most of us have experienc

29、ed trouble sleeping at one time or another This is normal and usually temporary, due to stress or other outside factors. But if sleep problems are a regular occurrence and interfere with your daily life, you may be suffering from a sleep disorder. Sleep disorders cause more than just sleepiness. The

30、 lack of sleep can have a negative impact on your energy, emotional balance, and health. If youre experiencing sleeping problems, learn about the symptoms of common sleep disorders, what you can do to help yourself, and when to see a doctor. Sleep can often be a barometer of your overall health. In

31、many cases, people in good health tend to sleep well, whereas those suffering from repeated sleeping problems might have an underlying medical or mental health problem. Ignoring sleep problems and disorders can lead to poor health, accidents, impaired job performance, and relationship stress. 填空项 1:_ （正确答案：energy）解析：填空项 1:_ （正确答案：mental）解析：