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4.Are you having difficulty falling asleep?Try drinking a glass of warm milk.If that doesn't work,listen to some soft,beautiful music.Still no luck?Try think about sheep jumping over a fence.If you are still awake,take a sleeping pill.People who take pills often become dependent on the drugs.So you lie awake knowing that the new workday will soon arrive.If you have been in such condition for at least one month,you may have primary insomnia(失眠症).
A new study has found that you might fall asleep more quickly and stay asleep longer if you try"cerebral hypothermia."It is not a complex medical process.It just means cooling down your brain.Eric Nofzinger and Naniel Buysse from the University of Pittsburgh Medical School led the study.They examined twelve people who had sleeping problems.Twelve others had no sleeping problems.Each of them wore a soft plastic cap on their head at bedtime.
The caps had tubes inside filled with water.The researchers moved the water through the tubes and then changed the temperature of the water.Other studies showed that people who had sleeping problems often had more chemical reactions in the front of their brain.The researchers thought cooling down the brain might help.
On the first two nights of testing,the patients wore caps with no water.On the next two nights,the caps were worn,but the water was not cooled.Then the researchers cooled the water a little for another 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 didn't help the patients until the temperature was about 14℃.Most ofthe patients fell asleep faster and slept better when the coolest water was moving around their head.
Dr Nfzinger and Dr.Buysse noted that this was only the beginning of the brain temperature study.But they believed they had discovered something important that needed more research.

12.The first paragraph is written toA.
A.put forward the topic of the passage.
B.explain how serious insomnia is
C.tell us the causes of sleeping problems.
D.tell us the danger of having sleeping problems.
13.From the passage we know that"cerebral hypothermia"is actuallyC.
A.a complex medical process.
B.a psychological treatment.
C.a simple physical treatment.
D.a difficult scientific theory.
14.In the study,researchers helped people fall asleep faster throughD.
A.increasing chemical reactions in the front of their brain.
B.making them feel safe with a cap on their head
C.asking them to drink water to cool down
D.lowering the temperature of their brain
15.What is paragraph 4 mainly about?D
A.The cause of the study.
B.The function of the caps.
C.People's reactions to the study.
D.Some details of the study.

分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了最近的一项研究发现,降低大脑的温度有助于失眠者睡一个好觉.

解答 12-15  A  C  D  D
12.A.推理判断题.根据第一段的句子"If you have been in such condition for at least one month,you may have primary insomnia(失眠症)."可知这一段主要是为了提出文章的话题.故选A.
13.C.细节理解题.根据第二段的句子"It is not a complex medical process.It just means cooling down your brain."可知"cerebral hypothermia"实际上是简单的物理疗法.故选C.
14.D.细节理解题.根据第三段的句子"The researchers thought cooling down the brain might help."可知研究人员通过冷却人们的大脑让他们更快地入睡.故选D.
15   D    段落主旨大意题.根据第四段On the first two nights of testing,the patients wore caps with no water.可知在前两天晚上的检测中,病人带着没有水的帽子,这是研究的具体细节,故选D.

点评 一、速读全文,了解大意知主题.
  阅读能力一般指阅读速度和理解能力两个方面.阅读速度是阅读最基本的能力.考生必须在十分有限的时间内运用略读、扫读、跳读等技巧快速阅读,搜寻关键词、主题句,捕捉时空、顺序、情节、人物、观点,并且理清文章脉络,把握语篇实质.
二、看题干,带着问题读文章.
  首先要掌握问题的类型,客观信息题可以从文章中直接找到答案;而主观判断题考查的是对文章的感情基调等,这类题必须经过对作者的态度、意图以及对整篇文章进行深一层的推理等.其次,了解试题题干以及各个选项所包含的信息,然后有针对性地对文章进行扫读,对有关信息进行快速定位.此法加强了阅读的针对性,提高了做题的准确率.
  三、逻辑推理,做好深层理解题.
  在实际阅读中,有时作者并未把意图说出来,阅读者要根据字面意思,通过语篇逻辑关系,研究细节的暗示,推敲作者的态度,理解文章的寓义.要求读者对文字的表面信息进行分析、挖掘和逻辑推理,不能就事论事,以偏概全.推理题在提问中常用的词有:infer,imply,suggest,indicate等.
  四、猜词悟义,扫除阅读拦路虎.
  猜词是应用英语的重要能力.它不但需要准确无误地理解上下文,而且要有较大的泛读量,掌握或认识较多的课外词汇.我们要学会"顺藤摸瓜",通过构词,语法,定义,同位,对比,因果,常识,上下文等线索确定词义.

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