2023年12月英语六级真题听力第一套（6）
Recording two
记录2
many dog owners will tell you that their dog somehow knows when they're ill or upset
许多狗主人会告诉你，他们的狗不知怎的知道他们生病或难过时
and according to researchers who study dog cognition, those pet owners are right
据研究狗类认知的研究人员称，这些宠物主人是对的
dogs do know when their human companions are having a rough time
狗确实知道它们的人类伴侣过得不好
not only can your dog sense when you have a cold, but domestic dogs have shown an aptitude for detecting both much smaller mood fluctuations and far more serious physical conditions
你的狗不仅能感知到你感冒，而且家养犬已经表现出能够检测更小的情绪波动和更严重的身体状况的能力
this is because dogs are extremely sensitive to changes in the people they are familiar with, and illness causes change
这是因为狗对它们熟悉的人的变化极为敏感，而疾病会引起变化
if a person is infected with a virus or bacteria for example, that odor will be abnormal, and dogs are able to smell that change, even if the human can't
例如，如果一个人感染了病毒或细菌，那种气味就会异常，狗能够闻到这种变化，即使人类不能
because dogs have a much more powerful sense of smell than humans
因为狗的嗅觉比人类强大得多
researchers have also found that a person's mood, which can be an indicator of a larger illness, triggers a dog's sense of smell
研究人员还发现，一个人的情绪可能是更严重疾病的征兆，这会触发狗的嗅觉
human emotions manifest physically in chemical signals that are emitted by the body, and dogs are able to smell those as well
人类的情绪会以身体发出的化学信号的形式表现出来，狗也能闻到这些信号
beyond smell, dogs gather information from a person's voice in order to sense changes
除了嗅觉之外，狗还会从人的声音中收集信息来感知变化
in 2014, researchers discovered that dogs have an area of the brain similar to one in humans that allows them to understand emotional cues in the tone of a speaker's voice beyond what they'd be able to pick up from familiar words alone
2014年，研究人员发现，狗的大脑中有一个区域与人类的类似，这使得它们能够理解说话者声音中的情感线索，而这些线索是它们仅仅从熟悉的单词中无法获取的
a person's voice can also carry indicators of illness
人的声音也可能携带疾病的迹象
what's not understood quite so well is what dogs understand about these changes
尚不完全清楚的是，狗对这些变化的理解如何
humans send out lots of cues, but whether dogs know some of these cues mean illness isn't clear
人类发出许多线索，但狗是否知道其中一些线索意味着疾病还不清楚
what we perceive as concern on a dog's part might be more like increased curiosity or suspicion that something is wrong with us
我们所认为的狗的担忧可能更像是增加的好奇心或怀疑我们出了什么问题
and sticking close by is a great way to gather more information about the situation
而靠近是收集更多关于这种情况信息的好方法
some researchers assert dogs will one day help doctors diagnose diseases
一些研究人员断言，狗总有一天会帮助医生诊断疾病
as some dogs have already demonstrated the ability to detect an assortment of ailments
因为有些狗已经表现出能够检测出一系列疾病的能力
including diabetes and certain types of cancer
包括糖尿病和某些类型的癌症
but those researchers can see that's probably in the distant future
但这些研究人员认为这可能在遥远的未来
for now research suggests dog ownership can have an array of benefits in and of itself
目前，研究表明养狗本身可以带来一系列好处
keeping a pet dog has been shown to bolster health and boost mood
养宠物狗已被证明可以增强健康和情绪
dogs also help people relax and they can be a particular comfort to those with chronic diseases
狗还能帮助人们放松，它们对慢性病患者来说也是一种特别的安慰
questions 19 to 21 are based on the recording you have just heard
问题19到21基于你刚刚听到的录音
question 19
what view of many dog owners win support from researchers studying dog cognition
许多狗主人的什么观点得到了研究狗类认知的研究人员的支持
question 20
why can dogs detect their owners abnormal odor according to the speaker
根据说话人，狗为什么能嗅出它们主人异常的气味
question 21
what does research suggest for now about dog ownership
目前的研究对养狗有什么建议
