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
2024-05-07
54
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] 【C9】
选项
A、transportation
B、emigration
C、immigration
D、migration
答案
D
解析
语义衔接题。由下句中的when it is time for the trip可推断出,鸟类开始的这次飞行应该是“迁徙”,[D]migration泛指从一个地方到另一个地方定居,不一定是国家和国家之间的迁徙,故答案为[D]。[A]transportation意为“交通运输”;[B]emigration意为“移民出境”,指离开说话人所在的国家移居到别处去;[C]immigration意为“外来的移民移居入境”,移居到说话人所在的国家,并且获得公民身份和永久居住权。
转载请注明原文地址:https://tihaiku.com/zcyy/3588614.html
相关试题推荐
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
Everylivingthinghaswhatscientistscallabiologicalclockthatcontrols
随机试题
Asabusinesswoman,Icaredeeplyaboutmycustomers.Butlikeanyoneforwh
Yoga,theancientpracticeofpostures,breathingandmeditation,isgainin
Ifyougodowntothewoodstoday,youmaymeethigh-techtrees—genetically
关于人生价值的实现说法正确的是()。A.由于人的社会关系是多方面的,人生价值的
一旦中断请求出现,CPU立即停止当前指令的执行,转去受理中断请求。()
既具有酸性又具有还原性的药物是( )。A.苯巴比妥 B.维生素A C.维生
企业在使用外部薪酬调查的结果时应注意哪些问题?
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
下列关于国家发展和改革委员会审批地方面投资项目的舰中,正确的是()。 A
患儿,女,3岁。咳嗽5天,发热2天。查体:咽红,双侧扁桃体Ⅰ度肿大,双肺可闻及较
最新回复
(
0
)