美国科学60秒 SSS 2013-06-12
时间：2019-01-20 作者：英语课 分类：Scientific American(六)月
The human voice is capable of forming a plethora 1 of incredibly different sounds. So many, in fact, that each individual language contains only a subset of potential sound units or phonemes. What factors determine whether a phoneme enters coming in use or relegated 2 to silence? It turns out geography may play a role. One phoneme that occurs in only 20 percent of the world's languages is the ejective consonance such as Aah or KAh. Caleb Elvin, an anthropologist 3 at the University of Miami, decided 4 to map where the sound occurs. He took a sample of 567 languages spoken around the world and compares the locations and the attitudes of those either contained or ignored the ejective consonance. Elvin discovered that languages that includes the ejective consonance will generally spoken at a higher elevation 5 than those that not. His research is in the journal of Plos One. Elvin suggests that sounds are more popular at the altitude because lower air pressure may make it easier to produce the burst of air that is the key characteristic of ejective consonance which is Pretty Cool.
- Java comes with a plethora of ready-made types.Java配套提供了数量众多的现成类型。
- A plethora of new operators will be allowed to enter the market.大批新的运营商将获准进入该市场。
- She was then relegated to the role of assistant. 随后她被降级做助手了。
- I think that should be relegated to the garbage can of history. 我认为应该把它扔进历史的垃圾箱。 来自《现代汉英综合大词典》
- The lecturer is an anthropologist.这位讲师是人类学家。
- The anthropologist unearthed the skull of an ancient human at the site.人类学家在这个遗址挖掘出那块古人类的颅骨。
- This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
- There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。