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阅读理解 Text 4
It is late at night and you are still awake. Should you take a sleeping pill( 药片) ? People who take medicine often come to depend on it. so you lie awake knowing that the new work day will soon arrive. If this happens to you for at least one month, you may have insonmia, or sleeping problems, at an early stage. There are millions of you.., us... around the world.
A new study led by Eric Nofzinger and Daniel Buysse of the University of Pittsburgh Medical School has found that you might fall asleep quicker and stay asleep longer if you try "cerebral hypo- thermia", which just means cooling down your brain. They examined twelve people who had in- somnia and twelve others who had no sleep problems. Each of them wore a soft plastic cap on their heads at bed time.
The caps had tubes(软管 ) inside filled with water. The researchers moved the water through the tubes and then changed the temperature of the water. As other studies showed that people who had trouble sleeping often had more chemical reactions ( 反应) in the front of their brains, the researchers thought lowering the temperature of the brain might help.
For the first two nights of testing, the patients wore no water caps. During the next two nights, the caps were worn, but the water was not cooled. Then the researchers cooled the water a little for two nights. on the final two nights of the study, the temperature of the water was made much cooler.
The researchers found that the water caps did not help the insomnia patients until the tempera- ture was about 140C. Most of the patients fell asleep faster and slept better when the coolest water was moving around their heads,
68. People might suffer from an early stage of insomnia if they
A. become dependent on drugs
B. need to take medicine before sleep
C. stay up late worrying about their jobs
D. have difficulty falling asleep over a month
69. How can people' s sleeping be improved according to the study?
A. Control the brain temperature.
B. Put plastic caps on at the right time.
C. Wear caps made of proper materials.D. Limit the cups of water taken in each day.
70. How many days did the researchers test insomnia patients?
A. Two days.
B. Four days.
C. Six days.
D. Eight days.
71. What might be the best title for the text?
A. How Researchers Discovered a New Use of Water
B. How Cooling the Brain May Help People Sleep
C. What People Need for a Good Night' s Sleep
D. What Happens in the Human Brain at Night
阅读理解 Text4
夜已深，你仍然醒着。你应该吃一片安*药吗?经常吃安*药的人会逐渐依赖药物，因此你会躺在床上夜不能寐等待着新一天的工作的到来。如果这种情况你持续至少一个月的时间的话，你可能患上初期的失眠症或者是睡眠障碍。在世界上有上百万的人面临这样的问题。
匹兹堡医学院的埃里克·诺夫辛格和丹尼尔·伯伊斯实施了一项新研究，研究发现如果你尝试“头部低温疗法”——降低大脑的.温度，你有可能更快速地入睡并保持长时间的睡眠。他们对l2个有失眠症和l2个没有睡眠障碍的人进行试验。给他们每一个人在睡觉的时候都戴上一个柔软的塑料帽子：
帽子里有注满水的软管。研究者们通过软管让水在里面流动，然后改变水的温度。通过其他的研究表明患有失眠症的患者在他们的大脑前部分有更多的化学反应，所以研究者认为降低大脑温度对睡眠有帮助。
在测试开始后头两个晚上，病人们戴着没有注水的帽子睡觉;在接下来的两个晚上。病人们戴上了注水后的帽子，但水温没有降低;又过了两晚上，研究者们降低了一点帽子里的水温;在实验的最后两个晚上，水温被降得更低了。
研究者们发现直到水的温度降至l4℃才对那些有失眠症的患者有帮助。绝大多数患者在最冷的水在他们头周围流动时，他们的睡眠速度更快且睡眠状态更好。
68.D【精析】细节题。题干意为“人们可能患上了早期失眠症，假如他们…”。从文章第一段倒数第二句话“If this happens to you for alleast one month，you may have…”可以得知，有这种症状至少一个月。故D正确。
69.A【精析】推理题。题干意为“根据这项研究，人们的睡眠如何得以改善?”。由文章所提到的cerebral hypothermia(头部低温疗法)这个实验推理得知。故A正确。
70.D【精析】推理题。题干意为“研究者们对失眠病人一共测试了多少天?”。由文章第四段，一共是分四个两晚上进行的实验，也就是说一共实验八天。故D正确。
71.B【精析】推理题。题干意为“这篇文章的标题是什么?”。根据文中的实验过程及结果，我们可以推出降低大脑温度对睡眠有帮助。故B正确。
书香门第
