2016年6月英语四级听力试卷一篇章1原文（网友版）
2016年6月18日的大学英语四六级考试正式拉开序幕，新东方网四六级频道第一时间为广大考生带来四六级考试真题答案以及解析，届时新东方多位知名教师也将第一时间对此次四六级考试相关真题做出详细解析，敬请广大考生密切关注以及。
微博微信平台，此次的四六级真题解析活动也将第一时间开展，广大考生可随时@，与线上老师以及考生随时互动答疑，最后新东方网四六级频道祝广大考生在此次考试中取得优异成绩!
以下是2016年6月英语四级听力原文第一篇：
Passages
Passage One
The massive decline in sleep happened so slowly and quietly that few seemed to notice the trend. Was it because 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 Lawrence 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. At 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-derived, there are higher levels of stress hormones in their bodies which can decrease immune 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.
Q16. What is the speaker mainly talking about?
Q17. What do we learn from the talk about today's Americans?
Q18. What does the speaker say will happen to people who lack sleep?
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