首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Insomniacs (someone who cannot sleep easily) don’t just suffer at night. During the day, they often feel sleepy, have trouble co
Insomniacs (someone who cannot sleep easily) don’t just suffer at night. During the day, they often feel sleepy, have trouble co
admin
2017-01-09
59
问题
Insomniacs (someone who cannot sleep easily) don’t just suffer at night. During the day, they often feel sleepy, have trouble concentrating and report greater difficulty with work or school performance than individuals who get adequate sleep.
But researchers are intrigued by an apparent【C1】______: Despite what insomnia patients experience subjectively, they often seem able to【C2】______cognitive tasks as well as people getting adequate sleep.
One【C3】______is that insomnia doesn’t lead to【C4】______ performance after all—maybe it just feels that way.
Using brain imaging technology, researchers【C5】______25 people with insomnia and 25 normal sleepers as they performed an eight-minute working-memory task【C6】______the processing and storing of short-term memory.
As the exercises became more difficult, the people who sleep【C7】______had increased activity in parts of the brain【C8】______the insomnia subjects didn’t. And the poor sleepers couldn’t turn off the brain’s "mind wandering" regions, also known as the "【C9】______mode" network, located generally【C10】______the brain’s midline. These regions are ordinarily active when a person isn’t【C11】______ in goal-directed behavior and they are【C12】______when the person switches to a task.
The more the insomnia patients subjectively reported【C13】______and difficulty concentrating, and the【C14】______they subjectively reported performing their task, the greater was their【C15】______to turn off the mind wandering regions, as measured by the MRI. "There’s no doubt that what’s going on in the brain could be measured as less 【C16】______," experts said.
More research is needed to understand how insomnia patients were able to【C17】______and perform the tasks equally well despite the apparent【C18】______in brain activity. The ultimate goal of this kind of research is to【C19】______ the environmental and genetic causes of insomnia and develop【C20】______treatments.
【C16】
选项
A、effective
B、available
C、efficient
D、accessible
答案
C
解析
本题所在句子是对上文所提失眠症患者的各种表现的总结。依据上文的各种提示,如:他们经常感觉很困、很难集中精力、工作或学校表现中遇到更大的困难(第1段),睡眠不好者不能关闭“心不在焉”区(第5段),可推断他们“效率不高”,be less efficient“效率不高”,故选C项efficient。
转载请注明原文地址:https://kaotiyun.com/show/BsEZ777K
0
考研英语一
相关试题推荐
Heroesarepeoplethathaveaehievedsomethingthatweadmire.Itcouldbeacharacterinabookoramovie.Everybodylovesah
The20thcenturywitnessedtwoprofoundchangesinregionsoftheworldwherepeoplearewelleducatedandscienceandtechnolog
Fordecades,ferryboatscrossedthecoldwatersofMichigan’sStraitsofMackinac,shuttlingpeopleandvehiclesbetweenthetw
Startingthismonth,roughlyonequarteroftheworld’spopulationwilllosesleepandgainsunlightastheysettheirclocksah
Startingthismonth,roughlyonequarteroftheworld’spopulationwilllosesleepandgainsunlightastheysettheirclocksah
Itmaynotbeobvious,buthearingtwolanguagesregularlyduringpregnancyputsinfantsontheroadtobilingualismbybirth.A
Isathleteprowessattainedorinnate?Thosewhohavesufferedthescoldingofatyrannicalgamesmasteratschoolmightbeforg
Isathleteprowessattainedorinnate?Thosewhohavesufferedthescoldingofatyrannicalgamesmasteratschoolmightbeforg
Elderlypeoplerespondbesttoacalmandunhurriedenvironment.Thisisnotalwayseasytoprovide【B1】______theirbehaviorcan
随机试题
改错题:改正句子中的错误。他不仅把伤者送进了医院,同时垫付了医药费。
A、地西泮B、硝西泮C、艾司唑仑D、劳拉西泮E、奥沙西泮短效苯二氮草类药物是
A.胡麻仁阿胶麦冬生地B.白芍阿胶麦冬当归C.胡麻仁阿胶麦冬D.胡麻仁当归生地E.生地玄参麦冬白芍复脉汤中所用的养阴药是
工程咨询单位的主要营销手段包括()。
信用社的现金资产包括()。
属于违反公序良俗原则的行为有()。
日本脱口秀表演家金语楼曾获多项专利。有一种在打火机上装一个小抽屉代替烟灰缸的创意,在某次创意比赛中获得了大奖,备受推崇。比赛结束后,东京的一家打火机制造厂家将此创意进一步开发成产品推向市场,结果销路并不理想。以下哪项如果为真,能最好地解释上面的矛盾?
Whichofthefollowingunderlinedpartsisusedasanobject?
TheWorldHealth【B1】______saysavianinfluenzacouldbecomeaworldwidethreatunlessgovernmentsactnowtostopit.Officials
Liketime,spaceisperceiveddifferentlyindifferentcultures.SpatialconsciousnessinmanyWesternculturesisbasedonape
最新回复
(
0
)