首页
登录
职称英语
[originaltext] Many say their brain doesn’t start working properly in the mo
[originaltext] Many say their brain doesn’t start working properly in the mo
游客
2024-05-15
59
管理
问题
Many say their brain doesn’t start working properly in the morning until they have had a cup of coffee. (30)But the stimulating effect for which caffeine is famous may be an illusion, say researchers. Those who drink a lot of coffee may feel more alert after their first cup of the day. But this is probably because it reverses the fatiguing effects of overnight caffeine withdrawal, say the researchers. Their study suggests coffee drinkers may actually be better off without their habitual morning mug as it raises the risk of anxiety and high blood pressure. In the study, 379 people who abstained from caffeine for 16 hours before drinking either caffeine or a placebo (安慰剂) were tested for a range of responses afterwards. The Bristol University researchers found little variance in levels of alertness among the volunteers. Around half the volunteers drank little or no caffeine and the other half were medium-high caffeine consumers. All were asked to rate their levels of anxiety and alertness and whether they had a headache before and after being given the caffeine or the placebo. They were also asked to carry out a series of computer tasks to test their levels of memory, attentiveness and vigilance. The medium-high caffeine consumers who received the placebo reported a fall in alertness and an increase in headaches, neither of which were reported by those who received caffeine. However, their post-caffeine levels of alertness were no higher than those of no or low-level consumers received a placebo. (32) This suggests caffeine only brings coffee drinkers back up to "normal."
30. What does the passage say about coffee?
31. What does the study suggest coffee drinkers do?
32. What does the study say about caffeine?
选项
A、Have coffee after breakfast.
B、Give up the habit of drinking in the morning.
C、Abstain from caffeine completely.
D、Be alert about the risk of being paralyzed.
答案
B
解析
细节推断题。短文指出,研究表明,咖啡爱好者最好别在早晨习惯性地喝一杯,因为这样会增加患有焦虑和高血压的风险。
转载请注明原文地址:http://tihaiku.com/zcyy/3600131.html
相关试题推荐
[originaltext]Theworld’ssmartestadolescentsinmathematicsandsciencea
[originaltext]Theworld’ssmartestadolescentsinmathematicsandsciencea
[originaltext]InBritainthereare11nationaldailynewspapersmidmostpe
[originaltext]M:Weseemtobehavingthisconversationoverandoveragain.W:
[originaltext]M:Weseemtobehavingthisconversationoverandoveragain.W:
[originaltext]M:Hey,Amy,whereareyouoffto?W:TotheRecreationCenter.I
[originaltext]M:Hey,Amy,whereareyouoffto?W:TotheRecreationCenter.I
[originaltext]W:I’mreallylookingforwardtothistripwithourgeologyclass
[originaltext]W:I’mreallylookingforwardtothistripwithourgeologyclass
[originaltext]W:I’mreallylookingforwardtothistripwithourgeologyclass
随机试题
You______payyourtuitionfees.Ifnot,you______notbeallowedtogoonwithyo
Oneofthethreemajorcommercialnetworks,CBSwere【M1】______
Everytimeweopenourmouthsandspeakwe【C1】______ourselves—IamEnglish
Oncearuralcountry,theUnitedStatesistodayahighlyurbanizedcountry,
低压配电屏(箱)、二次设备屏等有触电危险或易造成短路的作业场所悬挂的标志牌应使用
钳表的测量注意事项有哪些?()A.不得测试高于仪表限制的电压、电流,以防
以下关于双代号网络图的说法中,正确的是()。A.以节点或该节点的编号表示工作
基金产品设计的起点是()。A:确定基金风格B:选择适当的产品组合C:考虑相关
下列绝缘材料中,属于有机绝缘材料的有( )。A.矿物油 B.硫黄 C.橡胶
男性,43岁,长期咳嗽,经常咳脓痰15年。发热、咳脓臭痰一周来诊查体,左肺下背部
最新回复
(
0
)