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  3. 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

admin2011-05-18  61
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 Channel Dolphin and Wildlife Foundation (SDWF) has been studying a group of up to 120 bottle-nose dolphins in the River Shannon using vocalisations collected on a computer in a cow shed near the River Shannon.
    As part of a research project, student Ronan Hickey digitised and analysed 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 behaviour like foraging, resting, socialising and the communications of groups with calves, " 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 of sound. Sperm whales use it, to stun 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.
Whistles could also be used to communicate between adult dolphins and baby dolphins.
选项 A、Right
B、Wrong
C、Not mentioned
答案A
解析 问题中的关键词是adult dolphins和baby dolphins。对应原文第四段第一句，“We are building up a catalogue of the different whistle types they use and trying to associate them with behavior like foraging，resting，socialising and the communications of groups with calves．”说科学家正在设法将啸声与海豚的行为特性联系起来，包括海豚觅食、休息、社交和有幼崽的群体间的交流等，由此可知这也包括成年海豚与小海豚之间的联络这种行为。题句的意思与原句的意思相符，所以答案是A。
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