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 cloc
A Biological Clock Every living thing has what scientists call a biological clock that controls behavior. The biological cloc
admin
2012-09-29
60
问题
A Biological Clock
Every living thing has what scientists call a biological clock that controls behavior. The biological clock(1)plants when to form flowers and when the flowers should open. It tells insects when to(2)the protective cocoon (防护卵袋) and fly away, and it tells animals and human beings when to eat, sleep and wake.
Events outside the plant and animals(3)the action of some biological clocks. Scientists recently found, for example, that a tiny animal changes the color of its fur because of the(4)of hours of daylight. In the short(5)of winter, its fur becomes white. The fur becomes gray brown in(6)in the longer hours of daylight in summer.
Inner signals control other(7)clocks. German scientists found that some kind of internal clock seems to order birds to begin their long migration(8)twice each year, Birds(9)from flying become restless when it is time for the trip,(10)they become calm again when the time of the flight has ended.
Scientists say they are beginning to learn which(11)of the brain contain biological clocks. An American researcher, Martin Moorhead, said a small group of cells near the front of the brain(12)to control the timing of some of our actions. These(13)tell a person when to wake, when to(14), and when to seek food. Scientists say there probably are other biological clock cells that(15)other body activities.
选项
A、shape
B、type
C、form
D、color
答案
D
解析
解题思路:备选项中有关系项(A和C是近义词),缩小答案范围(A和C相互排除掉),再根据搭配结构语意“皮毛在……上变成棕色”判断D是答案。
转载请注明原文地址:https://kaotiyun.com/show/rGmd777K
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
Readthefollowingarticleandchoosethebestword,foreachspace.Forquestions26-45,markoneletterA,B,CorDonyo
Readthefollowingpassageandanswerquestions9-18.1.Peoplehavebeenpaintingpicturesforatleast30,000years.Theearli
CONVERSATION2(Questions5-8)DiscountsforGymCoursesWehavediscountsfor【L5】______students.For
CONVERSATION2(Questions5-8)DiscountsforGymCoursesWehavediscountsfor【L5】______students.For
YouwillheararadiointerviewwithMikeReynolds,whosehobbyisexploringundergroundplacessuchascaves.Forquestions9-1
EatingPotatoesGivesYourImmuneSystemaBoostEatingpotatoesisnotonlygoodforbowelhealth,butalsoforthewholeimmun
LanguageandCommunicationAlanguageisasignalingsystemwhichoperateswithsymbolicvocalsounds(语声),andwhichisused
Hehasmadeuphismindtogiveupsmoking.
Accordingtothepassage,someengineersaretryingtoimprovethehandlebarsbecauseThepassageimpliesthat
(46).Studieshaveshownthatpregnantwomenwhodrinkcoffeearemorelikelythanotherwomentogivebirthtosmallbabies.Th
随机试题
为了证实被审计单位某月份关于销售收入的“存在或发生”认定或“完整性”认定。下列审计程序最有效的是()
天麻钩藤饮的组成药物不包括
某企业采用双倍余额递减法计提固定资产折旧。2007年12月份购人设备一台,该设备原值为80000元,预计可使用年限5年,预计该设备报废时的净残值收入为3000元,请计算该设备在2012年应该计提的折旧额为()元。
1988年《巴塞尔协议》对银行资本的规定是()
2009年4月,甲企业与乙银行签订借款合同,借款金额为10万元人民币,借款期限为1年,由丙企业作为保证人。合同签订3个月后,甲企业因扩大生产规模急需资金,遂与乙银行协商,将贷款金额增加到15万元,甲企业和乙银行通知了丙企业,丙企业未予答复。后甲企业到期不能
从特定的社会环境来说,先进生产力有其特定的表现形态。比如火的发现与应用,骨制工具、石器、青铜器、铁器,文字的发明与应用,中国的四大发明,特别是蒸汽机、电气、原子能、计算机,等等,都曾经是先进的生产力。今天的知识化、数字化、信息化、网络化、系统集成化和时空一
“制造资源计划”的简写是()。
阅读文本材料和相关要求,完成第19~21题。刘成章《安塞腰鼓》原文一群茂腾腾的后生。他们的身后是一片高粱地。他们朴实得就像那片高粱。咝溜溜的南风吹动了高粱叶子,也吹动了他们的衣衫。他们的神情沉稳而安静。紧贴
简述学生心理健康的标准。
目前由于大气污染严重,有些厂家把新鲜的空气作为商品来销售,新鲜空气成为商品的原因有()。
最新回复
(
0
)