三级aa视频在线观看-三级国产-三级国产精品一区二区-三级国产三级在线-三级国产在线

您現在的位置: Language Tips> Easy English> Odd Question  
 





 
為什么有的人是左撇子?
[ 2006-12-27 10:58 ]

在這個右撇子占絕對多數的世界,卻有這樣一群左撇子:他們之中天才輩出,他們對人類文明的貢獻和對人類歷史、生活的影響遠遠高于他們在人口中的比例。左撇子到底緣何而來?我們來看看科學家的解釋。

"Because lefties do it right!"

"Because left handed people are the only people in their right minds?"

This question is definitely not a no-brainer.

Two theories predominate in the debates that rage on as to why a mere 4% of the population is left-handed. Most authorities agree, to the relief of many a mother of a left-handed child, that if the child prefers using the left hand, and functions well with it, there is no need to correct this "condition."

One theory centers on the two halves of the brain, i.e. the left half and the right half, each of which functions differently. Medical science believes that the left half of the brain predominates over the right half. The stem of this theory is the fact that nerves from the brain cross over at neck-level to the opposite side of the body, and nerves from the other side of the brainreciprocate. The end result is that the opposite sides of the body are supplied by the opposite sides of the brain.

The predominant left half of the brain, which graciously supplies the right half of the body, theoretically renders it more skillful in reading, writing, speaking, and working, and makes most people right-handed. "Lefties," however, are the product of an inversion, whereas the right half of the brain predominates, and they work best with the left side of their bodies.

Theory number two trickles down to the asymmetrical nature of the body. Examples of the asymmetry, which flows from head to toe, are that the right side of our faces differs slightly from the left, that our legs differ in strength, or that our feet vary in size. One aspect of this asymmetry is that for most people the right hand is stronger than the left.

There is no doubt that all exist in a "right-handed society," which manufactures most basics, including scissors, doorknobs, locks, screwdrivers, automobiles, buttons on clothing, and musical instruments for the 96%. Left-handed people compensate for this snobbery of sorts, by being members of an elite society, which includes many of the greatest geniuses, including Michelangelo, Leonardo da Vinci, and The Useless-Infomaster.

reciprocate: 交叉,交互

(英語點津 Annabel 編輯)

 
 
相關文章 Related Stories
 
 
 

本頻道最新推薦

     
  為什么下雪時天氣暖
  You are the smartest fish I've ever seen!
  Dog burger
  為什么老了脾氣好
  飛蛾為什么撲火

論壇熱貼

     
  開個題目大家扯:hotel & restaurant
  追求某人
  請教工商年檢如何翻譯
  How to translate “中國老字號”into English?
  "港股直通車"怎么翻譯?
  兩免一補怎么說?




主站蜘蛛池模板: 久久免费视频7 | 成人久久久观看免费毛片 | 日韩国产三级 | 97国产大学生情侣11在线视频 | 美女内部福利视频在线观看 | 最新香蕉97超级碰碰碰碰碰久 | 国产真实乱freesex | 国产高清国产专区国产精品 | 黄色网在线播放 | 成在线人永久免费播放视频 | 最新国产在线视频 | 欧美黄色大片 | 亚洲成色| 亚洲国产精品久久久久666 | 亚洲一区亚洲二区亚洲三区 | 日日插天天操 | 亚洲六月丁香六月婷婷花 | 国产一区二区日韩欧美在线 | 国产精品午夜在线观看 | 免费人成网站在线播放 | 成人精品视频一区二区三区尤物 | 日韩精品一区二区三区在线观看l | 91中文字幕在线一区 | 精品三级 | 国产乱人乱精一区二区视频密 | 国产精品亚洲专区在线播放 | 大香蕉毛片 | www.婷婷| 亚洲日韩色综合视频 | 看免费的黄色片 | 网红主播vip福利视频 | 亚洲xx站 | 国产网站麻豆精品视频 | 亚洲第5页 | 欧美黑人白人bbw | 国产一级片儿 | 亚洲美女在线观看 | 日韩成人精品视频 | 污网站网址 | 国产大片91精品免费观看不卡 | 国产成人在线观看免费网站 |