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
29
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://jikaoti.com/ti/nuZFFFFM
0
大学英语六级
相关试题推荐
A、Shedidn’tthinkitasuccess.B、Shewaslisteningtooattentivelytothespeakers.C、Shewaspuzzledbywhatthespeakerssai
PrinciplesinJapaneseOrganizationsDuringthe1970sand1980s,AmericanmanagersinvestedmuchtimeandmoneystudyingJap
Man,eveninthelowerstagesofdevelopment,possessesafacultywhich,forwantofabettername,IshallcallNumberSense.T
A、Theycaneasilylearnquitelongpoemsbyheart.B、Theycanrememberlongstorybyheart.C、Theycanrememberalmosteverythin
A、1:50.B、1:55.C、2:00.D、2:05.A综合推断题。男士问快车是否是2:05开车,女士回答说是1:55开,还差五分钟了,由此可知,现在是1:50。
A、Themanthinkstilewomaniswastinghertime.B、Themanthinksthewomanshouldmakefulluseofhertime.C、Themaniseager
A、Cathyalreadyknowsaboutthesurpriseparty.B、MonicaandCathyarenotgoodfriends.C、MonicawillprobablytellCathyabout
Takingyourdogonvacationmayhavebeen【B1】______adecadeago,buttodayit’sflee.【B2】______thepet-friendlyhotel,whe
A、Childrenunder11.B、Teenagers.C、Adults.D、Oldpeople.A
Itisobviousthat______(经济波动会影响人们的生活).
随机试题
仪器通电后,有高、低压开关的,必须先接“高“压,再接“低”压。
大陆法系形成的基础是()
A、活血消痈B、通络止痛C、行气止痛D、芳香温通E、祛风活络血府逐瘀口服液苦辛泄散,善治气滞血瘀之胸痹,头痛日久。其功能除活血祛瘀外,还能
[2012年第18题]根据《建筑工程建筑面积计算规范》,下列关于建筑面积的计算,正确是:
危险物品的生产、经营、储存单位以及矿山、建筑施工单位的主要负责人和安全生产管理人员,应当由有关主管部门对其安全生产知识和管理能力考核合格后方可任职,考核()。
影响期权价格的因素包括()。
以下关于劳动争议调解的说法,不正确的是()。
对“失败是成功之母”这句话理解正确的是()。
《大卫像》是意大利文艺复兴时期______的重要作品。
A、Heranavillageshop.B、Heworkedonafarm.C、Heworkedinanadvertisingagency.D、Hewasagardener.C题目询问说话人过去做什么谋生。说话人表明
最新回复
(
0
)