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
自考
Irish Dolphins May Have a Unique Dialect Irish scientists monitoring dolphins living in a river estuary in the southwest of
Irish Dolphins May Have a Unique Dialect Irish scientists monitoring dolphins living in a river estuary in the southwest of
admin
2013-09-17
16
问题
Irish Dolphins May Have a Unique Dialect
Irish scientists monitoring dolphins living in a river estuary in the southwest of the country believe they may have developed a unique dialect to communicate with each other.
The Shannon Dolphin and Wildlife Foundation(SDWF)has been studying a group of up to 120 bottle-nose dolphins in the River Shannon using vocalizations(发声)collected on a computer in a cow shed near the River Shannon.
As part of a research project, student Ronan Hickey digitized and analyzed a total of 1, 882 whistles from the Irish dolphins and those from the Welsh dolphins on a computer and separated them into six fundamental whistle types and 32 different categories. Of the categories, he found most were used by both sets of dolphins—but eight were only heard from the Irish dolphins.
"We are building up a catalogue of the different whistle types they use and trying to associate them with behavior like foraging(觅食), resting, socializing and the communications of groups with carves(幼仔), " project leader Simon Berrow said. "Essentially we are building up what is like a dictionary of words they use or sounds they make. "
Berrow, a marine biologist, said the dolphins’ clicks are used to find their way around and locate prey. The whistles are communications. "They do a whole range of other sounds like barks, groans and a kind of gunshot, " he said. "The gunshot is an intense pulse(脉冲)of sound. Sperm whales use it to stun(击昏)their prey. "
" When I first heard it I was surprised as I thought sperm whales were the only species who used it. We can speculate the dolphins are using it for the same reason as the sperm whales, " Berrow said.
References in local legend indicate there have been dolphins in the Shannon estuary for generations and they may even have been resident there as far back as the 6th century.
They are regularly seen by passengers on the Shannon ferry and an estimated 25 , 000 tourists every year take special sightseeing tours on local boats to visit them.
Sperm whales were the only species that can use pulse sound to stun their prey.
选项
A、真
B、假
C、Not Given
答案
B
解析
利用题干句的特征词pulse sound为线索,查找原文,找到“The gunshot is an intensepulse of sound.Sperm whales use it to stun their prey.”。但是下文又提到“We can speculate thedolphins are using it for the same reason…”,说明海豚也会用,所以题干句的内容不正确。
转载请注明原文地址:https://jikaoti.com/ti/b0tfFFFM
本试题收录于:
英语(二)题库公共课分类
0
英语(二)
公共课
相关试题推荐
资本主义民主制的核心和主要标志是()
区分新事物和旧事物的标志在于看它们
Fishis______andexpensiveatthistimeoftheyearinthisarea.
ManypeoplethinkNewYorkisanoisycity.Infact,scientistswhostudynoisesaythattheaveragenoiselevelinNewYorkis7
Parentscanhaveagreatimpactonthedevelopmentoftheirchildren’screativityinart.Butfirst,theyhavetoknowhow.They
Weallbelievethatmodemtechnologycanmakelifebetterbecauseitmakeseverythingfaster.Butby(11)______everythingup,
Oneofthemostpotent(有效的)elementsinbodylanguageiseyebehavior.Americansarecarefulabouthowandwhentheymeetoneano
Scientistshavealwayswantedtoknowmoreabouttheuniverse.Yearsagotheyknewmanythingsaboutthemoon.Theyknewhowbig
Onedayafewyearsagoaveryfunnythinghappenedtoaneighborofmine.HewasateacheratoneofLondon’sbigmedicalschoo
随机试题
科学的教育决策过程的四个阶段中最关键的阶段是()
女,28岁。心悸3天。约2周前曾咳嗽、流涕。查体:心界不大,心率96次/分,可闻及早搏10次/分。心脏各瓣膜听诊区未闻及杂音和附加音。心电图示频发室性期前收缩。血清肌钙蛋白升高。该患者最可能的诊断是
下列关于民事法律行为的表述中,正确的包括( )。
案例一背景:某装饰公司承接了寒冷地区某商场的室内、外装饰工程。其中,室内地面采用地面砖镶贴,吊顶工程部分采用木龙骨,室外部分墙面为铝板幕墙,采用进口硅酮结构密封胶、铝塑复合板,其余外墙为加气混凝土外镶贴陶瓷砖。施工过程中,发生如下事件:
补贴收入一般不列入()现金流量表。
Itisofbenefittofreightforwarders______EuropetobeawareoftheCMRconventionwhentheyactasinternationaltransport
按买方行权方向的不同可将期权分为()。
人民法院因审理案件,需要向银行查询企业的存款资料时,查询人不得()。
医乃仁术是指()。
有以下程序段:inta,b,c;a=10;b=50;c=30;if(a>b)a=b,b=c;c=a;printf("a=%db=%dc=%d\n",a,b,c);程序的输出结果是()。【08年9月】
最新回复
(
0
)