首页
登录
职称英语
It has been known since ancient times that certain plants regularly openthe
It has been known since ancient times that certain plants regularly openthe
游客
2023-09-14
71
管理
问题
It has been known since ancient times that certain plants regularly open
their leaves in daytime and close them at night. It was assumed which this 【S1】______.
periodic change was triggered by the alternating sunlight and darkness. Such
leaves stick to their daily routine even when keeping in constant darkness. 【S2】______.
What is circadian rhythm? Many biological processes follow a 24-hours 【S3】______.
schedule. These cycles are called circadian rhythms. These innate rhythms are
governed by sophisticated chemical mechanisms can be described as biological 【S4】______.
clocks. Such rhythms are important for humans too! We sleep through most
of the hours of darkness and are awaken through most of the hours of 【S5】______.
daylight. Body temperature increases during the day and decreases during the
night. The secretion of various hormones that controls life’s processes rises 【S6】______.
and falls to a circadian rhythm.
How does this relate to health? Circadian rhythms are important for
desirable functioning of the processes vital to health. This is most effectively
illustrated and the normal circadian rhythms are disrupted by lack of sleep or by 【S7】______.
crossing time zones. It may take days or even hours for all the bodies circadian 【S8】______.
rhythms to read just appropriately. The turmoil (混乱) that results from the
readjustment process when time zones are crossed experienced as the 【S9】______.
phenomenon of jet lag. This is also experienced by people who do shift work
Understanding circadian rhythms may be irrelevant to the understanding and 【S10】______.
treatment of disease. Therapy can be more effective and toxic effects reduced
when drugs are administered at carefully selected times of the day. [br] 【S2】
选项
答案
keeping→kept
解析
根据上下文,本句的意思“(白天)即便把这些叶子一直放置在黑暗处,它们依然遵循白天的规律”。状语keep和主语leaves 之间是被动关系,因此应该用过去分词形式,而不是现在分词形式。
转载请注明原文地址:http://tihaiku.com/zcyy/3012421.html
相关试题推荐
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotionto
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotionto
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotionto
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotionto
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotionto
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotionto
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotionto
Ifyou’vebeenoncampusforverylong,I’mcertainthatyou’vealreadyhear
[originaltext]Tosucceedinajobinterview,youshoulddemonstratecertain
[originaltext]Tosucceedinajobinterview,youshoulddemonstratecertain
随机试题
(a)Lim有一家宠物店,最近他在带狗散步时丢了一只阿尔萨斯小狗。他立即发出悬赏广告,任何人还回他的狗,他将支付给他500美元。Lena在Victria公园慢跑
(1)Scientist,engineer,musicianandgreatartist,LeonardodaVinciisthe
Cliniciansatarecentpsychoanalyticconferencebroughtforthinterestingev
甲带领15周岁的乙,在停车场劫持了宋某,将宋某带到郊外一废弃的厂房内,捆绑在铁架
Atabasiclevel,cloudcomputingissim
肌力评定的目的不包括A.判断有无肌力低下 B.发现肌力低下的原因 C.区别肌
为了加强对脊髓灰质炎的监测,对于急性弛缓性瘫痪的儿童均应于瘫痪发生_____天内
最适用于降低肥胖型糖尿病患者血糖的药物是A.胰岛素 B.格列齐特 C.瑞格列
关于非处方药的有关说法正确的是A.不需执业医师或执业助理医师处方消费者可以自行判
某市政供热管道工程,供回水温度为95℃/70℃,主体采用直埋敷设。管线经过公共
最新回复
(
0
)