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
Dolphins are not the only animals (31) humans that use sounds in an apparently intelligent manner. Whales also use a complex sys
Dolphins are not the only animals (31) humans that use sounds in an apparently intelligent manner. Whales also use a complex sys
admin
2009-06-24
81
问题
Dolphins are not the only animals (31) humans that use sounds in an apparently intelligent manner. Whales also use a complex system of sounds (32) is similar in many ways to a human language. One type of whale even sings, and its songs can (33) on for as long as three or four hours. What is more, they can be heard under water at (34) of more than 300 kilometers. After analyzing one of these songs with the aid of a computer, Carl Sagan said it (35) at least a million "bits" of information. This is approximately the same (36) of "bits" as in a long poem like The Odyssey.
Chimpanzees also use a system of different sounds to communicate with each (37). One type of cry (38) to mean something like "danger in the air" or "big bird" and another apparently means "danger on the ground" or "snake". When they (39) the first cry, they hide under trees or in holes and look up at the sky. The second cry causes them to hide in the upper (40) of trees and to stare nervously at the grass. Chimpanzees are also (41) of learning sign language. So are gorillas. One chimp called Washoe learned to (42) about 160 separate signs meaning (43) things as "Give me a drink" and "banana". Washoe even (44) to swear. She had a teacher called Jack (45) once refused to give her a drink. Washoe (46) angrier and angrier and used several signs which (47) "dirty Jack"! A group of chimps at research institute in Atlanta, Georgia, have recently (48) taught to type sentences, using a type of computer. The chimps’ trainer was called Tim, and he kept correcting the (49) one of the chimps made. The chimp obviously wanted Tim to stop (50) him and typed out the following request: "Tim, please leave room!"
选项
答案
been
解析
现在完成时被动语态。
转载请注明原文地址:https://kaotiyun.com/show/UnTd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
NorwichNorwich,thecapitalofthepartofBritainknownasEastAnglia,hasbeeninexistenceformorethantwothousandy
NorwichNorwich,thecapitalofthepartofBritainknownasEastAnglia,hasbeeninexistenceformorethantwothousandy
OnBritishNewspapersBesidesthedailynewspapers,thereareanumberofSundaynewspapersinBritain.Manyofthemarecon
LondonCabbies(出租车司机)Everycityintheworldhastaxistotaketouriststointerestingplaces.Londonistheonlycityint
Universitiesusuallygivediplomasorcertificatestostudentswhocompletecourserequirementsadequately.
For2,005years,Irelandhasbeenthebestplaceforhumanstolivein.TheUnitedStatesofAmericaisamongthetop10countr
For2,005years,Irelandhasbeenthebestplaceforhumanstolivein.FamilylifeinZimbabweisnotstable.
Theydidn’trealizehowserioustheproblemwas.
A.Adjustmentofyoungpeople’sstyleB.DisadvantageofcollegeeducationC.WhatfasionisD.TheimportanceofcreativityE.Warni
A.Adjustmentofyoungpeople’sstyleB.DisadvantageofcollegeeducationC.WhatfasionisD.TheimportanceofcreativityE.Warni
随机试题
在市场机制作用下,企业通过产权交易获得其他企业产权,并企图获得其控制权的经济行为是()
下列属于产品生命周期中客户成本的是【】
患者,男,28岁。3天前身热,恶风,微咳。今日咳嗽加剧,痰少而黏,不易咳出,时带血丝,鼻燥咽干,咳甚则胸痛,舌尖红,脉细略数。其证候是
根据药物浓度及时间,可以绘制某药物的药时曲线,根据药时曲线可定量地分析药物在体内动态变化的规律性和特征。药时曲线的升段主要反应
《现金管理暂行条例》允许企业使用现金结算的经济业务有()。
被辞退人员,自批准之月起停发工资。()
中国的户籍制度源远流长,它是历代政府加强人口管理、统计人口数字的一项制度。我国现行的城乡分割的二元户籍制度形成于新中国成立初期,这种与计划经济体制相适应的户籍制度在特定历史条件下,有利于生产力和劳动力的划拨。但是,这种限制性的户籍制度,在改革开放以后的市场
(2012山东3)世间的事物很少能比大学更美。在这里,憎恨无知的人奋力求知,________真理的人传授真理,在青年们长知识的年华里,大学给予他们远大目标和共同生活的规范,给予他们渴望得到的亲密友情,让青年人永无止境地对永恒的主题________。没有这些
设则f(x,y)在(0,0)处().
给定程序中,函数fun的功能是:求SS所指字符串数组中长度最短的字符串所在的行下标,作为函数值返回,并把其串长放在形参n所指变量中。ss所指字符串数组中共有M个字符串,且串长
最新回复
(
0
)