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
52
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】______ .
【C19】
选项
A、decrease
B、diminish
C、decline
D、reduce
答案
D
解析
动词辨析题。根据本句大意,了解生物钟对工作应该有一定好处,所以在工作中突发的疾病和事故应该会有所减少,因此选择D.reduce,指人为地使某物在数量或重量方面的减少或降低。A.decrease指“数量上的减少;力量或者强度的减弱”;B.diminish指“因为不断消耗.在数量方面缓慢减少或素质、价值的下降”;C.decline“(数目、价格、比率)下降;谢绝,婉言推辞;衰退,衰落”。
转载请注明原文地址:https://kaotiyun.com/show/Jes7777K
0
大学英语六级
相关试题推荐
A、Sandwiches.B、Fruits.C、Pies.D、Cookies.C选项都和食物有关。从Kidsinschooltakesandwiches,fruitandcookiesalongwiththem...可以得知pi
A、Hedoesn’tlikeNewYork.B、HelikesOrlandobetterthanNewYork.C、Hewasabusinessman.D、Heisverybusywithhiswork.D
Drunkendriving—sometimescalledAmerica’ssociallyacceptedformofmurder—hasbecomeanational【B1】______.Everyhourofever
ScientistssaytheyhavehighhopesforadrugthatcouldonedayprovideanewformoftreatmentforHIV-AIDS.Acompound,whic
Atsometimeinyourlife,youmayhaveastrongdesiretodosomethingstrangeorterrible.However,chancesarethatyoudon’t
Sexprejudicesarebasedonandjustifiedbytheideologythatbiologyisdestiny.Accordingtothisideology,basicbiological
A、Heistheman’sfriend.B、Tomakethewomanhappy.C、Topleasetheman’swife.D、TopleaseHarryhimself.C女士说“我真受不了Harry总是支配谈
_________________________(这一丑闻对于正在力争赢得大选的工党来说无疑是一件尴尬的事).Thenegativeeffectcouldbringaboutterribledecreaseinthevotes.
A、ThesizeisverysmallB、Professorsdothepresentationinlectureclasses.C、Studentscan’taskquestions.D、Studentsshould
随机试题
目前发现的不稳定血红蛋白有
诊断早期糖尿病肾病较有意义的检查是
患儿,2周,高热,鼻塞,体温39.6℃,查体咽后壁充血,诊断为上呼吸道感染。护士为该忠儿采取的首要护理措施是
关于司法、司法制度的表述,下列哪些选项是正确的?(2008—卷一—88,多)
房屋中跨度较小的房间,通常采用现浇钢筋混凝土()。【2008年真题】
完全竞争市场的一般均衡是指满足以下哪些条件的一组价格体系?()
下列有关票据贴现说法正确的是()。
基金管理人是()。
DNS服务器中提供了多种资源记录,其中()定义了域名的反向查询。
Formostaverageexercisersandathletes,sportsdrinksarenotonlyawasteofyourmoney,butmoreimportantly,canactuallyw
最新回复
(
0
)