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
62
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
Thereoughttobeless______overtheperceivedriskofmountainclimbingthan
Whatdidthemanagersendinresponsetotheenquiryof6thNovember?______for
HowGeniusesWorkIn1905,AlbertEinsteindeveloped
简述邻接权与著作权的主要区别。
下列有关光纤的说法中哪些是错误的是()。A.多模光纤可传输不同波长不同入射
外观要求玻璃珠应为无色松散球状,清洁无明显杂物。在显微镜或投影仪下,玻璃珠应为无
“奋斗就会有艰辛,艰辛孕育新的发展,这是一个普遍规律。”这个普遍规律从哲学上看,
当采用预裂爆破时,在开挖界限处按适当( )排列炮孔A.梅花型 B.方格型
29岁初产妇,妊娠39周,于晨4时临产,10时自然破膜,20时20分查宫口开大2
经定作人同意,承揽人将其承揽的主要工作交由第三人完成。关于责任承担的说法,正确的
最新回复
(
0
)