Howmuchsleepisenough?Tostayingoodhealth,someexpertintheUSsay,adultsshouldgetseventoeighthoursofsleep.Teenagerneedninetotenhours.Andpre-schoolchildrenneedmorethan10hoursofsleepanight.Expertssaythequality(质量)ofoursleepbecomespooraswegrowolder.Thishappensbecausethebrainunitthatcontrolssleepbeginstoweakenslowlyaswea...
D ,根中"Signs that show you may not be getting enough sleep: You're always hungry or you've got unwanted weight. ... You have trouble remembering things You are having trouble seeing” 象你能不睡 :You often get hungry.经常感到 饿: Your eyesight is falling.视力下降了: You have poorer...
You know you need to get enough sleep, but the question remains: How much is enough? Sleep scientist Matt Walker tells us the recommended amount for adults and explains why it's necessary for your long-term health.
How much sleep do we need? People are all different. Some people need only three or four hours of sleep a night. Others need ten hours of sleep a night. Most Americans sleep seven to eight hours a night. Some people find it is hard to fall asleep. About one in three Americans have...
(2)根据Most Americans sleep seven to eight hours a night.描述,可知本句表述错误。(3)根据Many of these people can not fall asleep. The name of this problem is insomnia(失眠症).不能入睡并不是永远不能入睡。可知本句表述错误。(4)根据About one in three(三分之一) Americans have a problem ...
根据文章中的第二段的第一句和第二句:To stay in good health, some experts in the US say, "Adults should get seven to eight hours of sleep." Teenagers need nine to ten hours. 为了保持健康,美国的一些专家说, "成年人应该有7到8个小时的睡眠。" 青少年需要9到10个小时。可知青少年通常比成年人...
原版时文阅读:睡多长时间才适合?How much sleep?Sleeping is essential to all animals including humans.If you've ever stayed up late and then gotten up earlythe next day, you know what it's like to not get enoughsleep. Its a very uncomfortable feeling. In fact, scientistshave long believed ...
After the age of fifty, the average sleep time goes down to 6.5 hours a night. Most people have a night when they cannot sleep. About one in three Americans has a problem with sleep. Many of these people cannot fall asleep. This problem is called insomnia. This is not a new problem....
So far, we've spoken about all of the wonderful benefits that sleep provides, but how much sleep should we actually be getting? [Sleeping with Science] For the average adult, the current recommendation is somewhere between seven to nine hours of sleep a night. And what we've been finding...
凭我的经验：How much sleep do you have everyday?n.(名）你每天需要睡多长时间？How long do you sleep everyday?v.（动）