首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Sleep and Dreams A)"Oh sleep! It is a gentle thing, beloved from pole to pole." Samuel Taylor Coleridge, the famous British poet
Sleep and Dreams A)"Oh sleep! It is a gentle thing, beloved from pole to pole." Samuel Taylor Coleridge, the famous British poet
admin
2015-07-31
39
问题
Sleep and Dreams
A)"Oh sleep! It is a gentle thing, beloved from pole to pole." Samuel Taylor Coleridge, the famous British poet, wrote these words over 100 years ago. Most people would agree with him. Sleep is very important to humans; the average person spends 220 000 hours of a lifetime sleeping. Until about thirty years ago, no one knew much about sleep. Then doctors and scientists began doing research in sleep laboratories. They have learned a great deal by studying people as they sleep, but there is still much that don’t understand.
B)Scientists study the body characteristics that change during sleep, such as body temperature, brain waves, blood pressure, breathing, and heartbeat. They also study rapid eye movement(REM). These scientists have learned that there is a kind of sleep with REM and another kind with no rapid eye movement(NREM). NREM is divided into three stages. In stage one, when you start to go to sleep, you have a pleasant floating feeling. A sudden noise can wake you up. In stage two, you sleep more deeply, and a noise will probably not wake you up. In stage three, which you reach in less than thirty minutes, the brain waves are less active and stretched out. Then, within another half hour, you reach REM sleep. This stage might last an hour and a half and is the time when you dream. For the rest of the night, REM and NREM alternate. Body movement during sleep occurs just before the REM stage. The average person moves about thirty times during sleep each night.
C)Sleep is a biological need, but your brain never really sleeps. It is never actually blank. The things that were on your mind during the day are still there at night. They appear as dreams, which people have been discussing for centuries. At times people believed that dreams had magical powers or that they could tell the future. Sometimes dreams are terrifying, but they are usually a collection of scattered, confused thoughts. If you dream about something that is worrying you, you may wake up exhausted, sweating, and with a rapid heartbeat. Dreams have positive effects on our lives. During a dream, the brain may concentrate on a problem and look for different solutions. Also, people who dream a good night’s sleep are more likely to remember newly learned skills. In other words, you learn better if you dream.
D)Researchers say that normal people may have four or five REM periods of dreaming a night. The first one may begin only a half hour after falling asleep. Each period of dreaming is a little longer, the last one lasting up to an hour. Dreams also become more intense as the night continues. Nightmares usually occur toward dawn.
E)People dream in color, but many don’t remember the colors. Certain people can control some of their dreams. They make sure they have a happy ending. Some people get relief from bad dreams by writing them down and then changing the negative stories or thoughts into positive ones on the written paper. Then they study the paper before they go to sleep again.
F)Many people talk in their sleep, but it is usually just confused half sentences. They might feel embarrassed when someone tells them they were talking in their sleep, but they probably didn’t tell any secrets. Sleepwalking is more common among children. They usually grow out of it by the time they become adolescents. Children don’t remember that they were walking in their sleep, and they don’t usually wake up if the parent leads them back to bed. Some people have the habit of grinding their teeth while they sleep. They wake up with a sore jaw or a headache, and they can also damage their teeth. Researchers don’t know why people talk, walk, or grind their teeth while they are asleep.
G)There are lots of jokes about snoring, but it isn’t really funny. People snore because they have trouble breathing while they are asleep. Some snorers have a condition called sleep apnea(呼吸暂停). They stop breathing up to thirty or forty times an hour because the throat muscles relax too much and block the airway. Then they breathe in some air and start snoring. This is a dangerous condition because, if the brain is without oxygen for 4 minutes, there will be permanent brain damage. Sleep apnea can also cause irregular heartbeats, a general lack of energy, and high blood pressure.
H)Most people need from 7.5 to 8. 5 hours of sleep a night, but this varies with individuals. Babies sleep eighteen hours, and old people need less sleep than younger people. If someone continually sleeps longer than normal for no apparent reason, there may be something physically or psychologically wrong. You can not save hours of sleep the way you save money in the bank. If you have only 5 hours of sleep for three nights, you don’t need to sleep an extra 9 hours on the weekend. And it doesn’t do any good to sleep extra hours ahead of time when you know you will have to stay up late.
I)What should you do if you have trouble sleeping? Lots of people take sleeping pills, but these are dangerous because they are habit-forming. If you take them for several weeks, it is hard to stop taking them. Doctors say the best thing is to try to relax and to avoid bad habits. If you always go to bed and get up at about the same time, this sets a good and healthy rhythm in your life. Caffeine keeps people awake. You may have trouble sleeping if you have a heavy meal just before you go to bed. Eat earlier in the evening.
J)You may also have trouble sleeping if you have a problem or something else on your mind. This is when you need to relax. As you lie in bed, tense the muscles in our feet and then relax them. Continue up the body, tensing and relaxing the muscles until you reach the head. Start with the feet again if you are still tense. Then remember some pleasant experience you had and relive it. If you are thinking about a problem or about something exciting that is going to happen the next day, get up and write about it. That will help take it off your mind. You can also get up and read or watch television. Be sure to choose a book or show that is not too exciting, or you may get so interested that you won’t want to go to sleep even when you feel sleepy. Sleep is important to humans. We spend a third of our lives sleeping, so we need to understand everything we can about sleep. Sleep well! Sweet dreams!
One of the positive effects that dreams have on people is that they may help people digest what they’ve learned.
选项
答案
C
解析
同义转述题。由定位句可知,晚上睡得好又做梦的话能帮助人记忆新学的技能,题干是对定位句的同义转述,故选C)。
转载请注明原文地址:https://jikaoti.com/ti/bV3FFFFM
0
大学英语四级
相关试题推荐
A、Shetookexerciseinagym.B、Shewasonadietsincelastmonth.C、Shelearnedyogainagym.D、Shehadboughtarunningmach
Whatwouldittaketopersuadeyoutoexercise?A【C1】______toloseweightorimproveyourfigure?Tokeepheartdisease,cancer
Whatwouldittaketopersuadeyoutoexercise?A【C1】______toloseweightorimproveyourfigure?Tokeepheartdisease,cancer
HaitiDreamsofTourismRevivalA)LikemanyofitsCaribbeanneighbors,Haitioncedrewmanytourists.Butdecadesofpolitical
HaitiDreamsofTourismRevivalA)LikemanyofitsCaribbeanneighbors,Haitioncedrewmanytourists.Butdecadesofpolitical
Fatterpeoplearemorelikelytolosetheirmemoriesandbrainpowerquickerthanthosewhoarethinner,accordingtoBritishre
Fatterpeoplearemorelikelytolosetheirmemoriesandbrainpowerquickerthanthosewhoarethinner,accordingtoBritishre
Fatterpeoplearemorelikelytolosetheirmemoriesandbrainpowerquickerthanthosewhoarethinner,accordingtoBritishre
Fatterpeoplearemorelikelytolosetheirmemoriesandbrainpowerquickerthanthosewhoarethinner,accordingtoBritishre
随机试题
怎样进行数控工序的零件检测?
A、普及方面B、提高方面C、两者都是D、两者都不是全国基层医院已有的外科设备及专业属于______。
患者,女,45岁,肝硬化病史7年,午饭后突然呕吐褐色胃内容物,量约500ml,来院急诊。出血后最易出现的并发症是()
甲国是群岛国,乙国是甲国的隔海邻国,两国均为《联合国海洋法公约》的缔约国。根据相关国际法规则,下列哪一选项是正确的?
企业结账的时间应为()。
经济危机时期,由于企业经营环境恶化、销售下降,企业应当逐步降低债务水平,以减少破产风险。()
会计核算和监督的内容是特定主体的()。
阅读下面的材料,以“幸福的加法”为题写一篇不少于800字的现代汉语议论文,要求主题明确,文字通顺,用词得体,结构合理,文体恰当,文笔优美。犹太人种庄稼,收割时总会在靠近路旁的庄稼地里的四个角留下一部分给路过此地急需解决饥饿问题的贫苦人。一方面,他
A、Touching.B、Talking.C、Smiling.D、Giftgiving.A讲座中间讲到在美国和西方国家,见面打招呼都会有一些身体的接触,因此A项“接触”为正确答案。B项“聊天”、C项“微笑”和D项“送礼”都不是“西方国家见面打招呼
Thirtyyearsago,anyoneblaminglonelinessforphysicalillnesswouldhavebeenlaughedat.Butasscientistsstudieddifferent
最新回复
(
0
)