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
2023-08-31
23
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 the 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 Siberain 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 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 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. It can【C16】______many days for a human body to【C17】______the 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、how
B、why
C、where
D、when
答案
A
解析
结构衔接题。空后的句子they affect the way we do our work作studying的宾语,故本空应填一引导词引导宾语从句。下文提到经常更换工作时间就会导致我们的身体不适应,这正是生物钟影响我们身体工作的方式,[A]how表方式,符合语义和语法结构,故答案为[A]。
转载请注明原文地址:https://tihaiku.com/zcyy/2972353.html
相关试题推荐
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
[originaltext]Americanscientistsaredevelopingmapsthatcanidentifyare
[originaltext]Americanscientistsaredevelopingmapsthatcanidentifyare
Atonetime,scientiststhoughtthespacebetweenEarthandSunwasavacuu
Atonetime,scientiststhoughtthespacebetweenEarthandSunwasavacuu
Atonetime,scientiststhoughtthespacebetweenEarthandSunwasavacuu
随机试题
Duringthe1980s,unemployment(失业人数)andunderemployment(不充分就业)insomecountr
Aboutthescratchontheproduct,theshopassistantthinksthat______.[br][o
关于儒释道文化的说法,正确的有( )。A.儒家、道家是本土文化,佛教是外来文化
某大型企业的数据中心为了集中管理、控制用户对数据的访问并支持大量的连接需求,欲构
某银行为达到一个月吸收存款过亿元的指标,可以采取“一万送床单”的吸收存款方式。(
下列各项中,不符合内部牵制的要求的是()。A、出纳人员管票据 B、出纳人员
社会工作者小黄在一次会谈中了解到服务对象小王有暴力伤害室友的想法,但小王要小黄替
左前分支阻滞的心电图表现不包括A.心电轴显著左偏小于-30° B.Ⅰ、aVL
(2019年)根据《污水综合排放标准》,本标准适用于()。A.现有单位水污染的排
医学心理学的研究任务不包括A.人格特征或行为模式在健康中的意义 B.如何运用心
最新回复
(
0
)