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
The Earth’s daily clock, measured in a single revolution, is twenty-four hours. The human clock, 【C1】______, is actually about t
The Earth’s daily clock, measured in a single revolution, is twenty-four hours. The human clock, 【C1】______, is actually about t
admin
2019-06-03
59
问题
The Earth’s daily clock, measured in a single revolution, is twenty-four hours. The human clock, 【C1】______, is actually about twenty-five hours. That’ s【C2】______scientists who study sleep have determined from human subjects who live for several weeks in observation chambers with no【C3】______of day or night. Sleep researchers have【C4】______other surprising discoveries as well.
We spend about one-third of our lives asleep, a fact that suggests sleeping, 【C5】______eating and breathing, is a fundamental life process. Yet some people almost never sleep, getting by on as【C6】______as fifteen minutes a day. And more than seventy years of【C7】______into sleep deprivation, in which people have been kept【C8】______for three to ten days, has【C9】______only one certain finding: Sleep loss makes a person sleepy and that’s about all; it causes no lasting ill【C10】______. Too much sleep, however, may be【C11】______for you.
These findings【C12】______some long-held views of sleep, and they【C13】______questions about its fundamental purpose in our lives. In【C14】______, scientists don’t know just why sleep is necessary.
Some scientists think sleep is more the result of evolutionary habit than【C15】______actual need, Animals sleep for some parts of the day perhaps because it is the【C16】______thing for them to do: it keeps them【C17】______and hidden from predators; it’s a survival tactic. Before the advent of electricity, humans had to spend at least some of each day in【C18】______and had little reason to question the reason or need for【C19】______. But the development of the electroencephalograph and the resulting discovery in 1937 of dramatic【C20】______in brain activity between sleep and wakefulness opened the way for scientific inquiry in the subject.
【C9】
选项
A、ignored
B、yielded
C、recognized
D、excluded
答案
B
解析
本题考查动词辨析。此处句意为“在一项长达70多年对睡眠缺乏的研究中,让人们3至10天不睡觉,______一个肯定的结果:缺乏睡眠让人犯困,仅此而已”。空格所在句的主语为research,宾语为finding,故B.yielded“产生(结果);得出(信息)”符合题意,为正确答案。ignore“忽略”,recognize“认可,承认”,exclude“排除,不包括”,均不符合题意,故排除。
转载请注明原文地址:https://kaotiyun.com/show/GHnZ777K
0
考研英语一
相关试题推荐
Itusedtobesostraightforward(直接的).Ateamofresearchersworkingtogetherinthelaboratorywouldsubmittheresultsofthe
Olderpeoplemustbegivenmorechancestolearniftheyaretocontributetosocietyratherthanbeafinancialburden,accordi
Olderpeoplemustbegivenmorechancestolearniftheyaretocontributetosocietyratherthanbeafinancialburden,accordi
Olderpeoplemustbegivenmorechancestolearniftheyaretocontributetosocietyratherthanbeafinancialburden,accordi
Olderpeoplemustbegivenmorechancestolearniftheyaretocontributetosocietyratherthanbeafinancialburden,accordi
Olderpeoplemustbegivenmorechancestolearniftheyaretocontributetosocietyratherthanbeafinancialburden,accordi
Howbesttosolvethepollutionproblemsofacitysunksodeepwithinsulfurouscloudsthatitwasdescribedashellonearth?
Howbesttosolvethepollutionproblemsofacitysunksodeepwithinsulfurouscloudsthatitwasdescribedashellonearth?
JusthowmuchdoestheConstitutionprotectyourdigitaldata?TheSupremeCourtwillnowconsiderwhetherpolicecansearchthe
随机试题
选用超声耦合剂错误的是
有关遗传性血管性水肿正确的是
A.慢性浅表性胃炎B.十二指肠球部溃疡C.胃癌D.胃MALT淋巴瘤E.慢性萎缩性胃炎男性,60岁。反复上腹部不适多年,一直未行胃镜检查。可诊断为
关于IgE的特性,错误的一项是
北京大学中文系美籍留学生杰克用中文创作了一篇短篇小说,发表在《文汇月刊》杂志上。以下哪些行为属于合理使用?()
已知某基础工程双代号时标网络计划如下图所示,如果工作E实际进度延误了4周,则施工进度计划工期延误()周。
下列关于应付账款的说法中,正确的有()。
下列各项中,属于土地增值税免税或不征税的有()。
初步可行性研究报告对项目进行初步的全面描述、分析和论证,是向有关主管部门提交项目建议书的必要条件,是开展详细可行性研究的依据。初步可行性研究报告的基本要求包括________。
监理应按照“守法、公平、公正、独立”的原则,开展信息系统工程监理工作,维护_______。
最新回复
(
0
)