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】______ flower
Every living thing has what scientists call a biological clock that controls behavior. It tells plants when to 【C1】______ flower
admin
2010-12-04
46
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 can 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 biologicaI 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】______ call 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。B.release“分泌”.符合题意。reaction“反应”;relief“(痛苦的)减轻,救济”;recovery“恢复,痊愈”。
转载请注明原文地址:https://kaotiyun.com/show/wes7777K
0
大学英语六级
相关试题推荐
Ifyouweretobeginanewjobtomorrow,youwouldbringwithyousomebasicstrengthsandweaknesses.Successor【C1】______iny
A、Shethinksitisofinferiorquality.B、Shethinksitisoverpriced.C、Shethinksitisabargain.D、Shethinksitcanbepurc
BirthControlThetermbirthcontrolreferstothevolitional(自觉的)controlofthenumberandspacingofchildreninafamil
A、Husbandandwife.B、Teacherandstudent.C、Fatheranddaughter.D、Friends.D
Drunkendriving—sometimescalledAmerica’ssociallyacceptedformofmurder—hasbecomeanational【B1】______.Everyhourofever
Theageofgildedyouthisover.Today’sunder-thirtiesarethefirstgenerationforacenturywhocanexpectalowerlivingsta
A、Campusfacilitiesforinternationalstudents.B、Optionalcoursesforinternationalstudents.C、Activitiesonandoffcampusfo
A、Hehasmanypets.B、Hehasthreechildren.C、Hedoesn’tneedalargerhouse.D、Hiswifeispregnant.D由男士所说的She’shavingabab
Takingyourdogonvacationmayhavebeen【B1】______adecadeago,buttodayit’sflee.【B2】______thepet-friendlyhotel,whe
A、Itshabits.B、Itsgenes.C、Itsmentalstates.D、Itsphysicalconditions.B根据短文中提到的Sleepisgeneticallyprogrammedinbabies可知,
随机试题
甲企业拥有三幢房产,分别为厂房A、厂房B和一幢办公楼,其中厂房A为与乙企业和丙企业共同共有,2014年有关甲企业房产的事项如下。(1)乙企业准备将厂房A进行内部装修,添置新的附属设施,经查,甲、乙、丙三个企业事先均没有约定处理方式,乙企业与甲企业
(2006年4月)企业文化
女性,40岁,因反复皮肤黏膜出血2周被诊断为ITP,应用泼尼松1mg/(kg·d)持续治疗6个月后仍然反复黏膜出血。对该患者最佳处理方案是
已知n元非齐次线性方程组Ax=B,秩r(A)=n一2,α1,α2,α3为其线性无关的解向量,k1,k2为任意常数,则Ax=B的通解为()。[2014年真题]
下列()措施可以用作沉井下沉的辅助措施。
下列关于个人住房贷款担保方式的说法正确的有()。
在下列各项中,能够反映上市公司股东财富最大化目标实现程度的最佳指标是()。
按照美国金融学专家罗伯特·库恩的划分,以下选项属于投资银行业务中,最广义的业务是()。
设求f(x)的间断点并判定其类型.
GlobalShortageofFreshWater
最新回复
(
0
)