首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Every living thing has what scientists call a biological clock that controls behavior. It tells plants when to【C1】______flowers
Every living thing has what scientists call a biological clock that controls behavior. It tells plants when to【C1】______flowers
admin
2013-06-02
23
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】______.
【C8】
选项
A、Outer
B、Other
C、Inner
D、Inward
答案
C
解析
语义衔接题。该段第二句中的internal one seems to order birds提示本句是说,身体内部的信号也能控制生物钟,故答案为[C]。[D]Inward常用来指朝向中心或内部方向的,侧重方向而不是位置,也可指内心的隐密活动,与此处语境不符,故排除。
转载请注明原文地址:https://kaotiyun.com/show/RP67777K
0
大学英语六级
相关试题推荐
A、Throwawayproductsarewidelyusedbecausetheyareproduced.B、Usingthrowawayproductsistoowasteful.C、Throwawayproducts
ARVshaven’tbeenusedwidelytopreventHIVtransmissionorinfectionforlackofmoney.Bothmother-to-childtransmissionand
A、Becausehecouldmakebigmoneybydoingthis.B、Becauseheoncewashelpedbyastrangeronhighway.C、Becausepeoplewouldh
Peoplehavedreamedoftravelinginspaceforthousandsofyears.Butitwasnotuntil1957thatitbecamea(36)______.OnOcto
TheFutureofTelevision:What’sonNext?BossesinthetelevisionindustryhavebeenkeepinganervouseyeontwoScandinav
ScientistshavelongbelievedonewaytostoptheEarth’satmospherefromwarmingisbyplantingmoretrees.Theideaisthatm
ScientistshavelongbelievedonewaytostoptheEarth’satmospherefromwarmingisbyplantingmoretrees.Theideaisthatm
A、Hethinksthewomanshouldn’tspeaksoopenly.B、Hetotallyagreeswiththewoman.C、Hewantstopersuadethewomannottothi
A、Comedy.B、Lightmovie.C、Mysterymovie.D、Actionmovie.C综合推断题。女士和男士在对话结尾处对一部悬疑电影都给出了很高的评价,因此男士在最后说,至少他们的某些观点是一致的,他觉得他们以后得去看悬疑
A、Alltheolddecentjobswillvanishforever.B、Additionalhigh-qualityjobswillemerge.C、Somejobswillbereplacedbynewo
随机试题
根据《生产安全事故应急预案管理办法》,生产经营单位的应急预案分为()。
A.巩膜B.虹膜C.脉络膜D.角膜E.视网膜具有屈光作用的是()
子宫内膜异位症痛经的特点是( )
按现行《1:5001:10001:2000地形图航空摄影测量内业规范》(GB/T7930-2008),地形图航空摄影测量中地形的类型不包括()。
根据《中华人民共和国环境噪声污染防治法》对社会生活噪声污染防治的规定,下列选项中正确的是()。
黄河是我国的第二大河,她一路浩荡,奔腾东疏,经九个省区,全长5464公里,似一条金色的巨龙,昂首______在我国北部辽阔的大地上。在古代,黄河流域的自然环境是很______的。那时,这里的气候温暖湿润,土地肥沃,到处是青山绿野,植物种类繁多,为原始人类
根据我国《刑法》的规定,下列行为属于犯罪的是()。
在一个如此欧洲化的地方,欧盟宪法理所当然成了当地的一个焦点话题,令人感到__________的是,这里不是赞成的声音最响亮的地方,而是反对者的天下。填入画横线部分最恰当的一项是:
(2012年真题)按照规则对人们行为限定的范围或程度的不同,可以将法律规则划分为()。
在人类文明发展的进程中,“创新设计”起着重要作用。以奔驰、通用、波音、西门子等为代表的汽车飞机、电力电器设计,引领了现代交通和电气化社会;以英特尔、微软、苹果、联想等为代表的芯片、软件、智能终端设计,造就了信息网络社会的生活方式。这说明
最新回复
(
0
)