首页
登录
职称英语
[originaltext] Caffeine and napping have something in common. They both
[originaltext] Caffeine and napping have something in common. They both
游客
2023-08-05
25
管理
问题
Caffeine and napping have something in common.
They both make you feel alert and can enhance your performance, whether that’s driving, working or studying.
But some people are convinced that drinking a cup of coffee before taking a nap gives you extra energy when you wake up.
Drinking coffee can also help us get through the day. And since the 1990s, researchers have been studying how combining the two might help.
In a 1997 study, 12 sleep-deprived people drank the equivalent of one large cup of brewed coffee and five minutes later had the chance to nap for 15 minutes. They then did some driving tests in a simulator to check their alertness.
Although drinking a coffee (without a nap) helped their driving performance, combining caffeine with a nap—a coffee nap—improved it even further.
People who took a coffee nap were less likely to drift out of their lanes on a two-hour monotonous simulated drive.
This was compared to when they just drank a cup of coffee (and had no nap) or when they had a cup of decaffeinated coffee (and without a nap).
A coffee nap even helped performance if people dozed during their nap time rather than falling into a deeper sleep. A coffee nap also reduced sleepiness once people got up, with people remaining alert for a couple of hours.
However, this early, small study was questioned. For instance, we don’t know how much coffee the people in the study were used to drinking or if they were what researchers call caffeine-naive and so more likely to experience a greater caffeine "hit. "
Questions 9 to 11 are based on the passage you have just heard.
9.What did the 1997 study find about people who took a coffee nap?
10. What did the study find about the benefit of a coffee nap?
11.Why was the study questioned according to the speaker?
选项
A、Because the number of the subjects was rather small.
B、Because the significance of the survey was limited.
C、Because the amount of caffeine the subjects have was unknown.
D、Because the subjects’ sensitivity to caffeine was unknown.
答案
D
解析
短文最后提到,这个早期的小研究遭到了质疑。讲话者提到了两个例子:我们不知道研究对象平时习惯于喝多少咖啡,不知道他们是不是研究者所称的“初涉咖啡”而因此受咖啡因的影响更大。因此答案为D)。
转载请注明原文地址:https://tihaiku.com/zcyy/2900449.html
相关试题推荐
[originaltext]M:Excuseme.Where’syourrockmusicsection?W:Rockmusic?I’m
[originaltext]W:Areyouwatchinganygoodshowsthesedays?M:Actuallyyes.I
[originaltext]M:Today,ourguestisRosieMullender,whoworksasafeaturese
[originaltext]M:Today,ourguestisRosieMullender,whoworksasafeaturese
[originaltext]M:Today,ourguestisRosieMullender,whoworksasafeaturese
[originaltext]M:GoodeveningandwelcometoPhysicsToday.[5]Hereweintervi
[originaltext]M:GoodeveningandwelcometoPhysicsToday.[5]Hereweintervi
[originaltext]M:[1]Doyoumindtakingmyphotowiththestatueoverthere?I
[originaltext]M:[1]Doyoumindtakingmyphotowiththestatueoverthere?I
[originaltext]M:[1]Doyoumindtakingmyphotowiththestatueoverthere?I
随机试题
Thewaythatpeoplespendtheirmoney,andtheobjectsonwhichtheyspendi
Smallcommunities,withtheirdistinctivecharacter—wherelifeisstableand
Healthyadultstakeapproximately10-14breathsperminute,butsomepeople
OnehundredandthirteenmillionAmericanshaveatleastonebankissuedcred
[originaltext]W:Thankheavens!You’rebacksafeandsound.Everyonewasworrie
下列选项中最符合所给图形规律的是()。 A.如上图所示 B.如上图所示
如果一条自行车道的路段通行能力为1000辆/小时,那么,当自行车道的设计宽度为4
某石油仓库的储存油品闪点为58℃,共有4个容积为3000m3的地上立式储罐,均为
下列各句中,没有语病的一句是( )。A.受“非典”影响,这个厂的利税较去年下降
关于利多卡因的抗心律失常作用,哪项错误A.对心肌的直接作用是抑Na内流,促K外流
最新回复
(
0
)