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
65
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
WhatdopeopletendtothinkofPicasso’spaintings?[br]Whichofthefollowing
强行平仓制度规定,当出现()的情况时,交易所要实行强行平仓。A、会员结算准备金余额为最低风险标准B、交易所紧急措施中规定必须平仓C、交易所交易委员
当长边与短边长度之比不大于2.0时,应按双向板计算。
一T脊髓损伤患者,男性,尿失禁合并尿潴留,测残余尿量200~300ml。他将近期
能在HAT培养基生长繁殖的细胞是A.小鼠脾细胞B.饲养细胞C.杂交瘤细胞D.小鼠
防腐材料包含的类别有( )。 A、油漆及涂料 B、不锈钢及其制品 C
下列关于审计职业道德的作用表述不正确的是()。A.有利于为解决审计争议提供依据
关于建设单位的质量责任与义务的表述,正确的是()。A:建设单位可以将建设工程肢
下列关于小额贷款公司的表述中,正确的有()。A.不吸收公众存款 B.可以吸收公
期货公司的交易软件、结算软件供应商有下列( )行为的,责令改正,处3万元以上1
最新回复
(
0
)