首页
登录
职称英语
Every living thing has what scientists call a biological clock that control
Every living thing has what scientists call a biological clock that control
游客
2024-05-30
15
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 calm 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 biological 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】______ can 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] 【C14】
选项
A、why
B、how
C、when
D、where
答案
B
解析
疑问副词辨析题。根据下文可知,如果我们经常更换工作时间,我们的身体会不适应。这正是生物钟怎样影响我们工作的体现,所以B正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3612172.html
相关试题推荐
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrol
随机试题
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Mrs.Blakekeptthedoorandthewindowsshut____________(唯恐外面的噪音干拢了她儿子的睡眠).les
WhatisthefullnameofBBC?A、BritishBroadcastingCooperationB、BritishBroadc
关于哺乳期用药,下列哪个是错误的()A.弱碱性药物容易从乳汁排出 B.
(2017年)下列各项会计处理方法中,体现了财务会计信息质量可比性要求的是(
根据《房屋建筑与装饰工程工程量计算规范》GB50854—2013,某墙基础采用
导游员在与游客交往时,切忌运用的界域语是( )。A.个人界域语和亲密界域语
有关特异质反应说法正确的是A.是一种免疫反应 B.多数反应比较轻微 C.发生
下列关于“容积率”的解释中符合《城市规划基本术语标准》的是()。A.一定地块
2012年7月15日,某工厂正在生产的梳麻车间、前纺车间和准备车间的联合厂房突然
最新回复
(
0
)