Yawning nds out certain messages

题文

Yawning nds out certain messages -either “Oh，this movie is so boring” or “I probably need to get some sleep”. But did you know that a yawn can also help your brain to cool down when it is overheated?A new study, led by a rearch team at Princeton University, has indicated that yawning could be the brain’s natural way of regulating temperature. People yawn more often when the temperature outdoors is lower than their body temperature but are less likely to yawn when it is hotter outdoors, according to Sciencedaily. com.The rearch team did an experiment on 160 people, 80 in summer and 80 in winter, to examine how often they yawned at different air temperatures. The study found that people yawned more often in winter than in summer. Scientists say that when the air temperature is lower outside the body, there is heat exchange between the overheated brain and the cool air. But when the air temperature is higher than or equal to the body, people are less likely to yawn becau the hot air they breathe in will make the brain even hotter.When people yawn, their jaw is also stretched，which increas blood flow and may also help cool the brainThe study showed that the amount someone yawned could be related to the amount of time they spent outside. The longer they spent outside in summer, the less they yawned. Nearly 40 percent of participants yawned within their first five minutes outside, but after that the percentage was reduced to less than 10 percent.However, the result was the opposite in winter. The number of people who yawned incread when they spent more than five minutes outdoors. But the change was only slight compared to summertime.According to Gallup, this is the first report to show that yawning frequencies change depending on ason. This could help us to understand better the way our brains work. It may also help us understand the reason why frequent yawning can sometimes be a sign of brain dia.小题1:The purpo of the experiment is ______.A．to find the frequency of people’s yawningB．to indicate brain can regulate temperature naturallyC．to prove people yawn in winter and in summer equallyD．to show the real reason why people yawn小题2:The information we get from Paragraphs 5 and 6 is that ______.A．longer outdoor summertime results in more yawnsB．yawning frequency increas with outdoor timeC．yawning frequency changes with outdoor time D．longer outdoor wintertime leads to fewer yawns小题3:Acorrding to the text，people yawn more often ______.A．when the air temperature is equal to the bodyB．when the hot air breathed in makes the brain hotterC．when the air temperature is higher than the bodyD．when the air temperature is lower outside the body小题4:What could be the best title for the text?A．Yawning Is A Sign of Brain DiaB．Yawning Cools Your BrainC．Yawning Benefits Your BodyD．Yawning Carries Some Information 题型：未知难度：其他题型

答案

小题1:A小题2:C小题3:D小题4:B

解析

文章介绍了一项研究结果，人们多长时间打一次哈欠，研究表明，当外面的温度比身体的温度低的时候，人们就会打哈欠。打哈欠可以让人的大脑冷静下来。小题1:细节题：从第三段的句子：The rearch team did an experiment on 160 people, 80 in summer and 80 in winter, to examine how often they yawned at different air temperatures. 可知这个研究的目的是看人们多长时间打一次哈欠，选A小题2:细节题：从第五段的句子:The study showed that the amount someone yawned could be related to the amount of time they spent outside.可知人们打哈欠的时间和在户外是时间有关，选 C小题3:细节题：从第二段的句子：People yawn more often when the temperature outdoors is lower than their body temperature but are less likely to yawn when it is hotter outdoors, according to Sciencedaily. com.可知当外面的温度比身体的温度低的时候，人们就会打哈欠。选D小题4:标题确定题：从第一段的句子：But did you know that a yawn can also help your brain to cool down when it is overheated?可知打哈欠可以让人的大脑冷静下来。选B

考点

据考高分专家说，试题“Yawning nds out ce.....”主要考查你对 [日常生活类阅读 ]考点的理解。 日常生活类阅读

日常生活类阅读的概念：

日常生活这一话题主要涉及人们衣食住行等方面的活动。这一话题的选材主要针对人们日常的工作，生活以及学习情况。做这一类题时，最主要的是要把握好人物的活动内容，时间和地点。

日常生活类阅读题答题技巧：

【题型说明】该类文章内容涉及到人们的言谈举止、生活习惯、饮食起居、服饰仪表、恋爱婚姻、消遣娱乐、节日起源、家庭生活等。文章篇幅短小，追根溯源，探索各项风俗的历史渊源，内容有趣。命题也以送分题为主，如事实细节题、语义转换题、词义猜测题和简单推理判断题等。虽然这类文章读起来感觉轻松，试题做起来比较顺手，但绝不能掉以轻心。因为稍不留神，就会丢分。 【备考提醒】为了保证较高准确率，建议同学们做好以下几点： 1、保持正常的考试心态。笔者在教学中发现，越是容易的试题，同学们越是容易失分。为什么呢？因为在这种情况下，同学们极易产生麻痹思想，认为题目好做，就不引起高度重视，于是思维不发散、不周密。而命题人就是利用同学们的这一弱点，设计陷阱题。所以，无论试题难易与否，我们都要保持正常的考试心态。试题容易，不欣喜；试题难，不悲观。 2、根据前面讲到的方法，认认真真、细细心心做好事实细节题。 3、做好语义转换题。这类题是根据英语中一词多义和某些词语在文中能表达一定的修辞意义的原则而设计的。要求同学们解释某生词的含义，确定多义词或短语在文中的意思，确认文中的某个代词所指代的对象，或者对英语中特有的表达、格言、谚语进行解释。这种题要求同学们一定要根据上下文猜测词义或理解句子，切不可望文生义。 4、做好简单推理判断题。简单推理判断题要以表面文字为前提，以具体事实为依据进行推理，做出判断。这种推理方式比较直接，只要弄清事实，即可结合常识推断出合理的结论。