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
2010-11-02
66
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】______ .
【C3】
选项
A、reaction
B、release
C、relief
D、recovery
答案
B
解析
名词辨析题。这句话的意思是:生物钟控制我们身体的温度.控制荷尔蒙的分泌.甚至控制我们的梦。对于“分泌”一词,符合题意的是B release。
转载请注明原文地址:https://kaotiyun.com/show/5Ls7777K
0
大学英语六级
相关试题推荐
A、HeputfileinformationontopofhisdeskB、Hedoesn’tknowtheanswerrightnow.C、Thetopofhisheadhurts.D、He’snotsur
Menseemtohavealwaystakenaninterestinmeteorites,butnotuntiltheearlynineteenthcenturyweretheseobjectsconsidere
Noiseentersourearsaspowerfulwavesofmechanicalenergy.Scientistsmeasuresoundintensityindecibels(db),witheachdou
GMOrganismsByfarthemostcommongeneticallymodified(GM)organismsarecropplants.Butthetechnologyhasnowbeenapp
GMOrganismsByfarthemostcommongeneticallymodified(GM)organismsarecropplants.Butthetechnologyhasnowbeenapp
Agoodwaytogetinformationforessaysandreportsistointerviewpeoplewhoarcexpertsinyour【S1】______topicorwho
A、Thelectureswereallboring.B、Notallthelectureswereinteresting.C、Thelectureswereratherinteresting.D、Thelectures
A、Therearenorapidsorwaterfalls.B、Thereisaconstant,strongwind.C、Navigationisratherdifficult.D、Frequentstormscau
Intheatmosphere,carbondioxideactsratherlikeaone-waymirror—theglassintheroofofagreenhousewhichallowsthesun’s
随机试题
关键活动是指_______为0的活动。()
5岁女孩,检查血常规发现全血细胞减少。下列各病中哪类不可能有此表现
根据中共中央“十二五”规划建议,在区域发展总体战略中居于优先位置的是()。
下列保险产品中,不属于投资型保险产品的是()。
简述入住服务应注意的事项。
遗传素质在人发展中的作用,下列说法正确的有()。
2009年3月,我国外交部发言人针对______签署领海基线法案,将黄岩岛和南沙群岛部分岛礁列为该国所属的岛屿一事重申,黄岩岛和南沙群岛历来都是中国领土的______部分。中华人民共和国对这些岛屿及其附近海域拥有无可争辩的主权。
下列命题正确的有()。
A、Inthesubway.B、Inthemoviehouse.C、Inlineoutside.D、Somewhereelse.C男士表示真希望这个电影值得一看,他的脚已经冻僵了,他再也受不了寒冷了。女士回应说她也很不愿意在外面排队
A、Americanpresidents’interventionintelevisionprograms.B、Americanpresidents’favoritetelevisionprograms.C、Televisionde
最新回复
(
0
)