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
A Biological Clock Every living thing has what scientists call a biological clock that controls behavior. The biological clo
A Biological Clock Every living thing has what scientists call a biological clock that controls behavior. The biological clo
admin
2013-10-25
66
问题
A Biological Clock
Every living thing has what scientists call a biological clock that controls behavior. The biological clock tells【C1】______when to form flowers and when the flowers should open. It tells【C2】______when to leave the protective cocoons and fly away, and it tells animals and human beings when to eat, sleep and wake.
Events outside the plant and animal【C3】______the actions of some biological clocks. Scientists recently found, for example, that a tiny animal changes the color of its fur【C4】______the number of hours of daylight. In the short【C5】______of winter, its fur becomes white. The fur becomes gray brown in color in the longer hours of daylight in summer.
Inner signals control other biological clocks. German scientists found that some kind of internal clock seems to order birds to begin their long migration【C6】______twice each year. Birds【C7】______flying become restless when it is time for the trip, 【C8】______they become calm again when the time of the flight has ended.
Scientists say they are beginning to learn which【C9】______of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain【C10】______to control the timing of some of our actions. These【C11】______tell a person when to【C12】______, when to sleep and when to seek food. Scientists say there probably are other biological clock cells that control other body activities.
Dr. Moorhead is studying【C13】______our biological clocks affect the way we do our work. For example, most of us have great difficulty if we must often change to different work hours.
【C14】______can take many days for a human body to accept the major change in work hours. Dr. Moorhead said industrial officials should have a better understanding of biological clocks and how they affect workers. He said【C15】______understanding could cut sickness and accidents at work and would help increase a factory’s production.
【C15】
选项
A、so
B、with
C、such
D、if
答案
C
解析
句意:他说懂得这些。会减少工作中的意外事故,对提高生产大有裨益。本句中的understanding是上句提到的“a better understanding of biological clocks”,所以C项最合适,其他选项在语法上都不合适。故本题选C。
转载请注明原文地址:https://kaotiyun.com/show/UHmd777K
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
Readthefollowingpassageandanswerquestions9-18.1.Mostyoungpeopleenjoysomeformsofphysicalactivity.Itmaybewalk
Youwillhearfivepeoplegivingtheiropinionsonchanginginlife.Forquestions9-13,choosefromthelistA~Fwhateach
Youwillhearfivepeoplegivingtheiropinionsonchanginginlife.Forquestions9-13,choosefromthelistA~Fwhateach
Youwillhearfivepeopletalkingabouttheshortcoursestheyattended.Forquestions9-13,choosefromthelistA-Fwhate
Youwillhearfivepeopletalkingabouttheshortcoursestheyattended.Forquestions9-13,choosefromthelistA-Fwhate
Lookatthequestionsforthispart.Youwillhearapassageabout"LivingaLongLife".Youwilllistentoittwice.F
JohnFisher,abuilder,andhiswifeElizabethwantedmorelivingspace,sotheylefttheirsmallflatforanold40-metre-high
Over-the-counterdrugsarethemedicines______.Thenewrequirementsfortheactivechemicalsinamedicinemustbelabelled_
Over-the-counterdrugsarethemedicines______.Howmanypeoplegetsickbecauseoftakingover-the-counterdrugseachyear?
TheStoryofLaniFive-year-oldLanistilltakessevenmedicineswithherbreakfasteverymorning."She’sverygoodaboutit,
随机试题
发育期的上颌正中间隙,在哪个牙萌出后间隙关闭
钩体病感染中毒型的临床特点有
以下关于中外合资经营企业、中外合作经营企业和外资企业可以采取的企业形式说法不正确的是哪项?()
制定人工时间定额考虑的时间有()。
下列各项不会引起现金净流量金额变动的有()。
在组织信息处理过程中,要对信息的可靠性进行分析,评估信息源可靠性的标准包括()。
A:Ilikethisapartmentverymuch,butI’llcomebackthiseveningwithmywifeandkids.Willthatbeconvenient?B:______
控制信息是由CPU发出的、用于控制外设接口工作方式以及外设的______的信息。
Shynessisthecauseofmuchunhappinessforagreatmanypeople.Shypeopleareanxiousandself-conscious;thatis,theyaree
传统中医(traditionalChinesemedicine)可以不借助任何仪器给病人治病,堪称奇迹。“望”、“闻”、“问”、“切”(pulsetaking)为传统中医诊断的四个方法。“望”指通过直接观察病人体表来了解情况。“闻”就是听声音、闻气味
最新回复
(
0
)