2016年6月英语四级听力真题第1套-短文1

【真题完整试卷在”公-重-浩“：超能资料库】

听力试题、听力原文、答案：

一、听力试题：

　　Section C

　　Questions 16 to 18 are based on the passage you have just heard。

　　16。 A）The importance of sleep to a healthy life。

　　B） Reasons for Americans’ decline in sleep。

　　C）Some tips to improve the quality of sleep。

　　D）Diseases associated with lack of sleep。

　　17。 A）They are more health-conscious。

　　B）They are changing their living habits。

　　C）They get less and less sleep。

　　D） They know the dangers of lack of sleep。

　　18。 A）Their weight will go down。

　　B）Their mind function will deteriorate。

　　C）Their work efficiency will decrease。

　　D）Their blood pressure will rise。

二、听力原文

Passage 1

The massive decline in sleep happened so slowly and quietly that few seemed to notice the trend. Was it becrause of the growing attraction of the Internet, video games and endless TV channels? Never disconnecting from work? No matter how it happened, millions of Americans are putting their health, quality of life and even length of life in danger. New evidence shows why getting enough sleep is a top priority. Some 40% of Americans get less than 7 hours of shut-eye on week nights. “The link between sleep and health, and bad sleep and disease is becoming clearer and clearer,” says LawTence Alberstaine, a sleep expert at Harvard University. For example, sleep duration has declined from some 8 hours in the 1950s to 7 in recent years. Al the same time, high blood pressure has become an increasing problem. Blood pressure and heart rate are typically at their lowest levels during sleep. People who sleep less tend to have higher blood pressure, heart attack, diabetes, weight gain and other problems. Sleeping better may help fight off illness. When people are sleep-deprived, there are higher levels of stress hormones in their Ixxlies which can decrease iminune function. says Doctor Felice, of Northwestern University in Chicago. A university of Chicago study shows people who sleep well live longer. So say "good night", sooner and it may help you stay active and vital to a ripe old age. 

16. What is the speaker mainly talking about?

17.What do we learn from the talk about today's Americans?

18.What does the speaker say will happen to people who lack sleep?

16 A) The importance of sleep to a healthy life

17 C) They get less and less sleep

18 D) Their blood pressure will rise

人们的睡眠时间在逐渐减少，然而这一发展趋势是如此缓慢、悄然，以至于很少有人察觉。

是因为网络、视频游戏和无间断播放的电视节目吸引力太大了吗？还是因为处于工作需要要时刻保持联络方式畅通？

无论是什么原因，美国人都已经让自己的健康、生活品质甚至寿命面临风险。

有新证据证明了充足睡眠的头等重要地位。

40%的美国人在工作日每天睡眠时间少于7个小时。

哈佛大学睡眠研究专家，劳伦斯·艾普斯坦说，“睡眠与健康之间，以及缺乏睡眠与疾病之间的联系已经日益明显”。

比如：近年来人们的睡眠时长已经从20世纪50年代的八小时缩短到七小时。

同时，高血压的发病率在不断升高。

通常，人睡着时血压和心率处于最低水平。

睡眠少的人可能患上高血压、心脏病、糖尿病；或者出现肥胖等其他问题。

好的睡眠能够抵御疾病。

“人们缺乏睡眠时，体内的压力荷尔蒙水平较高，导致免疫功能降低，”

芝加哥西北大学菲利斯·徐说道。

芝加哥大学一项研究表明睡眠质量好的人寿命更长。

所以，早点睡觉，这样你才能有一个充满活力的晚年。

请根据你听到的内容回答16-18题。

问题16：说话者主要讨论了什么问题？

问题17：根据以上内容我们对如今的美国人有什么了解？

问题18：说话者认为缺乏睡眠的人会怎样？