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
22
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】______ .
【C17】
选项
A、adapt
B、adjust
C、adopt
D、accept
答案
D
解析
动词辨析题。根据上下文和自己的生活经验可以判断:人体需要很多天来适应工作时间的大调整。比较选项,只有accept接近题意。
转载请注明原文地址:https://kaotiyun.com/show/DLs7777K
0
大学英语六级
相关试题推荐
Moreandmore,theoperationofourbusiness,governments,andfinancialinstitutionsarecontrolledbyinformationthatexists
A、Shedoesn’twanttopaythelatefee.B、Shewasgivenincorrectinformation.C、Shecan’taffordtopayhertuition.D、Shedidn
PassageOneAliceWalkermakesherlivingbywriting,andherpoems,shortstories,andnovelshavewonmanyawardsandfell
Menseemtohavealwaystakenaninterestinmeteorites,butnotuntiltheearlynineteenthcenturyweretheseobjectsconsidere
Doyouseetheglassashalf-fullratherthanhalfempty?Doyoukeepyoureyeuponthedoughnut,notuponthehole?Suddenlyth
Noiseentersourearsaspowerfulwavesofmechanicalenergy.Scientistsmeasuresoundintensityindecibels(db),witheachdou
A、Hewasveryslowindoingthings.B、Hewastherightpersontodosuchathing.C、Heisexpectedtodosuchathing.D、Hewoul
Intheatmosphere,carbondioxideactsratherlikeaonewaymirror—theglassintheroofofagreenhousewhichallowsthesun’s
A、Thelectureswereallboring.B、Notallthelectureswereinteresting.C、Thelectureswereratherinteresting.D、Thelectures
随机试题
麦氏重排的特点有哪些?
数而时一止,止无定数所主病有
多发性骨髓瘤患者血清蛋白电泳图谱出现M区带是由于患者血清中有大量的
下列哪一项是对行政诉讼和刑事诉讼之间关系的错误表述?
关于公路施工企业信用评价等级的说法正确的有()。
对圆的直径是它的半径的两倍的学习属于()。
收容教育的期限是()
设函数f(x)==__________。
Manyexpertsbelievethatinthenewworldofartificialintelligence(AI)humanbeingswillstillbeneededtodothejobsthat
FannyKemble(1809—93)wasthenieceoftwoShakespeareantragedians,SarahSiddonsandSiddons’sbrother,JohnPhilipKemble.【R1】
最新回复
(
0
)