问答题
下面的短文有5处空白。短文后有6个句子.其中5个取自短文，请根据短文内容将其分别放回原有位置.以恢复文章原貌。
Health Benefits of a Good Night’s Sleep Sleep, we all love it, especially when we wake up from a great night’s sleep. 26 But nowadays we are beginning to understand the importance of sleep to overall health.
People working the night shift have a higher risk of cancer.Researchers believe this link is caused by differing levels of melatonin (褪黑素) in people who are exposed to light at night. 27 .Melatonin makes us sleepy and is thought to protect against cancer.Be sure that your bedroom is dark to help your body produce the melatonin it needs.
When your body is short of sleep, it goes into a state of sdivess.The body’s functions give you an alarm which causes an increase in blood pressure. 28 .Learn to relax to reduce the effects of sdivess.
Researchers have also found that people who sleep less than seven hours per night are more likely to be fat. 29 So if you are interested in condivolling or losing weight, don’t forget to pay attention to getting a good night’s sleep.
Sleeping during the day will protect your health and make you more productive.A study of Greek adults showed that people who slept during the day several times a week had a lower risk of dying from heart disease. 30 .
Health Benefits of a Good Night’s Sleep Sleep, we all love it, especially when we wake up from a great night’s sleep. 26 But nowadays we are beginning to understand the importance of sleep to overall health.
People working the night shift have a higher risk of cancer.Researchers believe this link is caused by differing levels of melatonin (褪黑素) in people who are exposed to light at night. 27 .Melatonin makes us sleepy and is thought to protect against cancer.Be sure that your bedroom is dark to help your body produce the melatonin it needs.
When your body is short of sleep, it goes into a state of sdivess.The body’s functions give you an alarm which causes an increase in blood pressure. 28 .Learn to relax to reduce the effects of sdivess.
Researchers have also found that people who sleep less than seven hours per night are more likely to be fat. 29 So if you are interested in condivolling or losing weight, don’t forget to pay attention to getting a good night’s sleep.
Sleeping during the day will protect your health and make you more productive.A study of Greek adults showed that people who slept during the day several times a week had a lower risk of dying from heart disease. 30 .
【正确答案】【文章导读】文章主要讲了睡眠的若干好处，尤其是对健康的好处。
26.C 根据下文“But nowadays we are beginning to understand the importance of a good night’s sleep”（如今我们开始理解好的睡眠的重要性）可知，横线处要表达的是与后半句相反的意思，即人们之前并没有意识到睡眠的重要，与C项意思相近，故选C。
27.F 第二段主要在介绍褪黑素的作用，上文讲的是上晚班的人会暴露在灯光下，导致褪黑素水平差异，因此推断横线处应该讲述的说明灯光让褪黑素产生何种差异。F项是说灯光会减少褪黑素，符合题意，故选F。
28.A 根据上文“The body’s functions give you an alarm which causes an increase in blood pressure”可知，横线处应填和blood pressure（血压）有关的内容，A项说的是高血压会增加患心脏病的风险，故选A。
29.B 根据上文“Researchers have also found that people who sleeps less than seven hours per night are more likely to be fat”可知，本段讲述的是睡眠与肥胖的关系，B项说的是睡眠不足会增加人的食欲，是对上文的补充说明，符合题意，故选B。
30.E 最后一段讲的是白天睡觉的一些好处。E项说的是短暂睡眠的益处，白天的睡眠一般是短暂睡眠，符合题意，故选E。
26.C 根据下文“But nowadays we are beginning to understand the importance of a good night’s sleep”（如今我们开始理解好的睡眠的重要性）可知，横线处要表达的是与后半句相反的意思，即人们之前并没有意识到睡眠的重要，与C项意思相近，故选C。
27.F 第二段主要在介绍褪黑素的作用，上文讲的是上晚班的人会暴露在灯光下，导致褪黑素水平差异，因此推断横线处应该讲述的说明灯光让褪黑素产生何种差异。F项是说灯光会减少褪黑素，符合题意，故选F。
28.A 根据上文“The body’s functions give you an alarm which causes an increase in blood pressure”可知，横线处应填和blood pressure（血压）有关的内容，A项说的是高血压会增加患心脏病的风险，故选A。
29.B 根据上文“Researchers have also found that people who sleeps less than seven hours per night are more likely to be fat”可知，本段讲述的是睡眠与肥胖的关系，B项说的是睡眠不足会增加人的食欲，是对上文的补充说明，符合题意，故选B。
30.E 最后一段讲的是白天睡觉的一些好处。E项说的是短暂睡眠的益处，白天的睡眠一般是短暂睡眠，符合题意，故选E。
【答案解析】