首页
登录
职称英语
Throughout history man has observed such natural cycles as the rising and se
Throughout history man has observed such natural cycles as the rising and se
游客
2023-08-23
37
管理
问题
Throughout history man has observed such natural cycles as the rising and setting of the sun, the ebb and flow of the ocean tides, and the changes of the seasons. The【C1】______nature of these events provided people with a measure of【C2】______about things to come and give them reason to reflect on their past and plan for their future. The regularity of such social activities as work hours, meal times, and holiday schedules【C3】______the extent to which human activity itself is organized in cycles.
Recently,【C4】______effort has been spent investigating the effect of various biological rhythms in the human body.【C5】______, interest in these rhythms at least in part results from man’s basic desire to predict future behavior.
The human body【C6】______a number of repeatable rhythms: heartbeats, breathing rates, brain waves and other physiological processes within the human machine.
Scientists studying rhythms in humans have measured sleep patterns and attention【C7】______over periods of several days, and have【C8】______the fact that the cycles exist and exert effects on physiological and sociological behavior. A common example is jet lag. A person’s traveling in the east-west direction across time zones【C9】______his sleep cycles—it may take several days to return to the【C10】______cycle or to readjust to a new one.
A)indicates B)demonstrated C)verifying D)normal
E)considerable F)upsets G)disappoints H)periodic
I)Certainly J)Thankfully K)spans L)gorgeous
M)security N)exhibits O)limits [br] 【C8】
选项
答案
B
解析
这里缺少谓语动词,根据空格前的have可判断时态是现在完成时。词库中只有demonstrated是过去分词形式,带入后表示“……证明了一个事实”。
转载请注明原文地址:https://tihaiku.com/zcyy/2951984.html
相关试题推荐
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Itisclearthathumanhistorywillend;theonlymysteryiswhen.Itisals
Itisclearthathumanhistorywillend;theonlymysteryiswhen.Itisals
Itisclearthathumanhistorywillend;theonlymysteryiswhen.Itisals
"Theworld’senvironmentissurprisinglyhealthy.Discuss."Ifthatwerean
"Theworld’senvironmentissurprisinglyhealthy.Discuss."Ifthatwerean
"Theworld’senvironmentissurprisinglyhealthy.Discuss."Ifthatwerean
随机试题
SometimesitappearsthateverytowninBritainhasatleasthalfadozengh
Psychologistsarefindingthathopeplaysasurprisinglyvitalroleingivin
卡波环可能是A.核膜残余物 B.核残余物 C.白蛋白变性物 D.血红蛋白聚
在用ELISA法测定β-TG时,茶碱的作用是A.抑制血小板活性 B.防止血液凝
1、资料(一) A公司是一家A股上市公司,主要从事钢铁产品的生产和销售,母公司
《义务教育美术课程标准(2011年版)》的实施建议包括( )、( )、教材编
共用题干 WideWorldofRobotsEngineerswho
医生甲意图杀死患者司某,将毒药给不知情的护士乙。乙粗心大意,未经检查就让司某服下
把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项是
做金属烤瓷时,密合度最差的肩台是()A.羽状肩台 B.浅凹型肩台 C.135
最新回复
(
0
)