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
2024-04-11
19
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 E)considerable I)Certainly M)security
B)demonstrated F)upsets J)Thankfully N)exhibits
C)verifying G)disappoints K)spans O)limits
D)normal H)periodic L)gorgeous [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/3550163.html
相关试题推荐
[originaltext]W:Hey,Mike!DidyouattendMr.Johnson’sseminarontheHistory
[originaltext]Asaresultofrisinguniversitycosts,manystudentsarefin
[originaltext]Asaresultofrisinguniversitycosts,manystudentsarefin
[originaltext]Oneofthecomplaintsofcityresidents,notsurprisingly,is
[originaltext]W:Hey,Tom!Iheardthatyouareauditingatthehistoryclass.
[originaltext]W:Hey,Tom!Iheardthatyouareauditingatthehistoryclass.
[originaltext]Asaresultofrisinguniversitycosts,manystudentsarefin
[originaltext]Asaresultofrisinguniversitycosts,manystudentsarefin
[originaltext]Asaresultofrisinguniversitycosts,manystudentsarefin
[originaltext]W:Hey,Mike!DidyouattendMr.Johnson’sseminarontheHistory
随机试题
[img]2012q1/ct_etoefm_etoeflistz_0765_20121[/img][br]Whydoestheprofessorme
Accordingtoasurvey,whichwasbasedontheresponsesofover188,000stud
按国家版权局《出版文字作品报酬规定》,图书原创作品的版税率标准为( )。A.2
下面哪一项是俄国文学史上“多余人”的形象:()A.奥涅金 B.海燕 C.宝
玄参药材横切面特征是A:棕色,粉性强B:黄棕色,角质性C:黑色,粉性D:黑
理财规划师所在机构与客户有时会发生争议,所以理财合同中应设定“争议条款”,争议解
组成普通地图的主体要素部分是()A:数学要素B:地理要素C:辅助要素D:补
有关阿托品药理作用的叙述,不正确的是A:抑制腺体分泌 B:扩张血管改善微循环
“解放思想,实事求是”中的“解放思想”是指 A.在马克思主义指导下,打破习惯势
5-氟尿嘧啶的抗癌作用机制是A.抑制二氢叶酸还原酶 B.抑制尿嘧啶的合成 C
最新回复
(
0
)