首页
登录
职称英语
[originaltext]No one knows exactly why we sleep. But scientists have learned a
[originaltext]No one knows exactly why we sleep. But scientists have learned a
游客
2024-03-04
65
管理
问题
No one knows exactly why we sleep. But scientists have learned a lot about how we sleep, From sleep experiments, scientists have learned that there are four different stages of sleep.
When you first fall asleep, your heart starts to beat more slowly and your breathing slows down. If something wakes you, you might not think that you had been asleep. Some people call this kind of sleep dozing. Scientists call it Stage One sleep. Next, if you are not awakened, you drift into a deeper sleep. Your pulse and breathing become even slower than they were during Stage One sleep. But you can still be awakened quite easily. If you take a cat nap, you probably will not get any further than this stage of sleep, which is called Stage Two.
If you sleep longer than about twenty minutes, you go into the third stage of sleep. Your body is very relaxed. It would take a loud noise to wake you up.
You have probably heard of people who walk in their sleep. No one knows what makes people sleepwalk. But a person can sleepwalk only during Stage Four. This is the deepest kind of sleep. If someone wakes you up during stage four, you might feel very confused. It might take you a few minutes to get used to being awake.
选项
A、Stage One.
B、Stage Two.
C、Stage Three.
D、Stage Four.
答案
A
解析
At which stage is sleep called dozing?
细节题。文章分别介绍了睡眠的四个阶段,一些人把第一个阶段叫做sleep dozing。
转载请注明原文地址:https://tihaiku.com/zcyy/3503984.html
相关试题推荐
[originaltext]W:Hello,SuperstarComputers.MayIhelpyou?M:Yes,thisisKe
[originaltext]W:Hello,SuperstarComputers.MayIhelpyou?M:Yes,thisisKe
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]Whenyouturnontheradio,youhearanadvertisement.Wheny
[originaltext]Lipstickplaysanimportantroleinsexualattractionandcal
[originaltext]Lipstickplaysanimportantroleinsexualattractionandcal
[originaltext]M:Hello,Mrs.Kelly.I’dliketopickupmytest,please.W:Sur
[originaltext]M:Hello,Mrs.Kelly.I’dliketopickupmytest,please.W:Sur
[originaltext]W:What’stheproblem?M:Ican’tfigureouthowtoputthepage
随机试题
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______a
Anintroductorysentenceforabriefsummaryofthepassageisprovidedbelow.C
[originaltext]M:Hey,Vale.Sinceyou’refromArgentina,I’dhavetoaskyouab
功效补脾养胃,生津益肺,补肾固涩的药物是()A.山药 B.太子参 C.
某基金总资产为50亿元,总负债为20亿元,发行在外的基金份数为30亿份,则该基金
无单独巡视设备资格的人员到变电站参观检查,应在()的陪同下方可进入设备场区
中国大陆第一部荣获柏林国际电影节“金熊奖”的电影是()。 A.《本命年》B.
()具有保证劳动法体系全面实施的功能。A.劳动法律法规制度 B.企业内部劳动
下列有关组织、强迫、引诱、容留、介绍卖淫罪,说法正确的是:()A.明知是淫秽网站
施工文件档案卷内的文字材料按事项、专业顺序排列、同一事项的请示与批复、同一文件的
最新回复
(
0
)