新东方网>BBC>BBC英语教学>潮流英语>随身英语>正文

猫咪为什么发出咕噜声?

2020-07-15 09:17

来源:bbc

作者:

随身英语

Why do cats purr? 猫咪为什么发出咕噜声?

众所周知,猫会发出喵喵声、嘶嘶声和咕噜咕噜声。但有一个问题让人们感到困惑,那就是猫为什么会发出咕噜咕噜的声音。我们通常认为猫咪发出咕噜声是因为它们很快乐,不过原因可能没有这么简单。

词汇:sound 声音

We’ve all heard cats meow and hiss, but why do they purr? There are a number of theories out there - from the commonly held belief that they are simply happy, to British comedian Eddie Izzard’s light-hearted suggestion that they are impersonating a drill.

While they do purr when tickled or caressed to show their appreciation for attention, cats also make the noise when not in our company. The purring noise is a consistent pulsing sound that occurs while they both inhale and exhale breath. The word ‘purr’ is a great example of onomatopoeia and refers to the constant noise which ranges in frequency between 25 and 150 hertz.

For a long time, scientists debated how cats purred. Most people believe that the cat’s brain signals the laryngeal muscles to vibrate and function like a valve, opening and closing the space between the vocal cords. What triggers this reaction is debated. Some argue that the cat intends to purr, while others say it may be due to endorphins released by the brain as a reaction to pleasure, or pain.

According to Leslie A. Lyons, an assistant professor at the School of Veterinary Medicine at the University of California, cats often purr while stressed, such as when they head to the vets or are recovering from an injury. So what are the potential benefits of this ‘drilling’ sound? Some scientists believe the vibrations that ripple through the cats’ bodies may actually promote muscle development, heal bones and injuries, ease breathing and lessen pain. It could even help to soothe discomfort in a similar way to a child sucking their thumb.

So, the purring of a cat may have more uses than just telling you they’re enjoying attention. It’s also important to remember that not all cats can purr. Some bigger felines, like lions, can’t, and only roar. So, the next time you hear a roar, it probably isn’t your pussy cat, and you might need to run.

词汇表

meow 猫叫声,喵喵叫
hiss 嘶嘶声
purr (猫发出的)咕噜声
pulsing 脉冲的
inhale 吸气
exhale 呼气,吐出气
onomatopoeia 象声词,拟声词
frequency (声波的)频率
hertz 赫兹
laryngeal 喉部的
vibrate 震动,颤抖
vocal cords 声带
endorphin 内啡肽,安多芬
vibration 持续震动
ripple (声音)传播起伏
roar 吼叫

测验与练习

1.  阅读课文并回答问题。

1. True or false: cats purr when they breathe in and out.

2. Why does Eddie Izzard compare purring to drilling?

3. What is the word ‘buzz’ an example of?

4. Why might the brain release endorphins?

5. Do all cats purr?

2. 选择意思恰当的单词或词组来完成下列句子。

1. If one _______ too deeply, they may cough.

exhale                          exhalation                 exhales                    exhaling

2. Listen to that tiger _______. It’s terrifying.

roared                           roars                         roaring                     was roaring

3. The seat _______ to massage your back.

vibrating                        vibrate                      vibration                   vibrates

4. Be careful when _______ – try not to breathe too deeply.

inhaling                         inhales                      inhale                      inhalation     

5. The sounds _______ through the air.

ripples                           rippling                      rips                          rippled

答案

1.  阅读课文并回答问题。  

1. True or false: cats purr when they breathe in and out.
True. Cats purr when they inhale and exhale.

2. Why does Eddie Izzard compare purring to drilling?
It was a joke. Drilling is a similar sound – they both pulse.

3. What is the word ‘buzz’ an example of?
‘Buzz’ is an example of onomatopoeia – a word pronounced like it sounds.

4. Why might the brain release endorphins?
As a reaction to pleasure or pain.

5. Do all cats purr?
No. Big cats like lions don’t usually purr.

2 选择意思恰当的单词或词组来完成下列句子。

1. If one exhales too deeply, they may cough.

2. Listen to that tiger roaring. It’s terrifying.

3. The seat vibrates to massage your back.

4. Be careful when inhaling – try not to breathe too deeply.

5. The sounds rippled through the air.

资料下载

  • 七年级上、下册英语词汇

    3342次下载 点击下载
  • 八年级上、下册英语词汇

    2621次下载 点击下载
  • 九年级全册英语单词表

    4734次下载 点击下载
  • 中考英语1600个词汇手册

    1854次下载 点击下载
  • 高考英语词汇必备3500

    1391次下载 点击下载
  • 新概念英语1-4册全套教材

    1391次下载 点击下载
名称名称
300次下载

微信扫码关注"新东方网"服务号

回复""立刻获取!

猜你喜欢

  • 听力
  • 口语
  • 阅读
  • 娱乐
  • 词汇
  • 写作

            新东方英语辅导专区

            班级名称 上课地点 上课时间 费用 详细

            焦点推荐

            版权及免责声明

            凡本网注明"稿件来源:新东方"的所有文字、图片和音视频稿件,版权均属新东方教育科技集团(含本网和新东方网) 所有,任何媒体、网站或个人未经本网协议授权不得转载、链接、转贴或以其他任何方式复制、发表。已经本网协议授权的媒体、网站,在下载使用时必须注明"稿件来源:新东方",违者本网将依法追究法律责任。

            本网未注明"稿件来源:新东方"的文/图等稿件均为转载稿,本网转载仅基于传递更多信息之目的,并不意味着赞同转载稿的观点或证实其内容的真实性。如其他媒体、网站或个人从本网下载使用,必须保留本网注明的"稿件来源",并自负版权等法律责任。如擅自篡改为"稿件来源:新东方",本网将依法追究法律责任。

            如本网转载稿涉及版权等问题,请作者见稿后在两周内速来电与新东方网联系,电话:010-60908555。

            蓝月亮二四六精选大全