首页
登录
职称英语
Every living thing has what scientists call a biological clock that controls
Every living thing has what scientists call a biological clock that controls
游客
2023-09-07
60
管理
问题
Every living thing has what scientists call a biological clock that controls behavior. It tells plants when to 【C1】______ flowers and insects when to leave protective cocoon(茧) and fly away. And it tells animals and human beings when to 【C2】______ , sleep and seek food. It controls our body temperatures, the 【C3】______ of some hormones and even dreams.
Events 【C4】______ the plant and animal affect its actions. Scientists recently found that a tiny animal called Siberian hamster changes the color of its 【C5】______ because of the number of hours of 【C6】______ . In shorter days of winter its fur becomes white. The fur becomes gray-brown in longer 【C7】______ of daylight in summer.
【C8】______ signals control other biological clocks. German scientists found that some internal one seems to order birds to begin their 【C9】______ flights two times each year. Birds prevented from flying become 【C10】______ when it is time for the trip. 【C11】______ they become can again when the time of the flight has ended. A mix of outside and internal events controls some biological clocks;such things as heartbeat and the daily change from sleep to walking take place because of both external and internal signals.
Scientists are beginning to learn 【C12】______ parts of the brain contain the biologicaI clocks. A researcher at Harvard University. Dr. Martin Moore Ede, said a small group of cells near the front of the brain seemed to control the 【C13】______ of some of our actions. Probably there are other cells to control other body activities. He is studying 【C14】______ they affect the way we do our work. Most of us have great difficulty if we 【C15】______ often change to different work hours. 【C16】______ call take many days for a human body to 【C17】______ a major change in work hours. Industrial officials should have a better 【C18】______ of biological clocks and how they affect workers. He said such an understanding could 【C19】______ sickness and accidents at work, and would help increase 【C20】______ . [br] 【C2】
选项
A、walk
B、cry
C、guard
D、awaken
答案
D
解析
语义衔接题。结合空格后的并列动词sleep and seek food,此题可用排除法。生物钟可以告诉人和动物什么时候醒来(awaken),什么时候入睡.以及什么时候寻找食物。
转载请注明原文地址:https://tihaiku.com/zcyy/2993661.html
相关试题推荐
[originaltext]M:Youlikelivinginthecity,don’tyou?W:Oh,Iloveit.It’s
[originaltext]M:Youlikelivinginthecity,don’tyou?W:Oh,Iloveit.It’s
[originaltext]Scientistssaysharkshavelivedintheworld’soceansformi
[originaltext]Scientistssaysharkshavelivedintheworld’soceansformi
ClimateChangeScientistspredictincreasi
ClimateChangeScientistspredictincreasi
ClimateChangeScientistspredictincreasi
ClimateChangeScientistspredictincreasi
ClimateChangeScientistspredictincreasi
[originaltext]W:Whatdoyoudoforaliving,Frank?M:Iamanaerospaceengin
随机试题
MrFielder[br]ThesuccessofBorgWarnerliesin[originaltext]At63,Joh
WhichofthefollowingtagquestionsisINCORRECT?A、There’snohopeforit,ist
Aladywasreportedinthenewspaper______nearthepoliceofficeyesterday.A、bei
A.0,γ B.0,2γ C.γ,γ D.γ,2γ
能够种植粟,制造彩陶,居住在半地穴式房子里的原始居民是()。A.元谋人B.北
(2019年5月)工时定额和产量定额是劳动定额的两种基本表现形式,它们在数值上互
下列哪项不属于“十八反”的药物A.甘草反甘遂 B.乌头反贝母 C.莱菔子反人
下列公式中正确的有( )。A.有形净资产=所有者权益+无形资产 B.利息保障
绘制双代号网络图时,符合节点编号的原则是( )。A.不应重复编号 B.可以随机
根据《建筑安装工程费用项目组成》(建标[2013]44号文),以定额人工费为基
最新回复
(
0
)