188bet网站主页|管帐188bet.com|办理188bet.com|计算机188bet.com|医药学|经济学188bet.com|法学188bet.com|社会学188bet.com|文学188bet.com|教育188bet.com|理学188bet.com|工学188bet.com|艺术188bet.com|哲学188bet.com|文明188bet.com|外语188bet.com|188bet.com格局
我国论文网

用户注册

设为主页

您现在的方位: 我国188bet网站 >> 外语188bet.com >> 英语教学 >> 正文 会员中心
 外语翻译188bet.com   言语文明188bet.com   英美文学188bet.com   其他相关188bet.com   学术英语   商务英语   英语教学
缤纷前沿

原文作者:佚名

 stricken dolphin asks diver for help
  受伤海豚找潜水员求救
  keller laros, a professional diving instructor, was leading a group of divers for a dive experience when suddenly they heard a dolphin cry and the dolphin swam in their direction. laros soon noticed that the dolphin was entangled (缠住) in fishing line and a hook was lodged in its pectoral fin (胸鳍). "the way he came right up and pushed himself into me there was no question this dolphin was there for help," said laros. "the line wrapped around his pectoral fin was so tight and he had cuts both front and aft (尾部). i was worried if i tugged (拉拽) on it, it might hurt him more." however, the dolphin patiently and calmly allowed him to work to remove the fishing line.
   海豚懂得找人求助的才智让人不由赞赏,不过它们对人类的信赖更令人敬服和深省。www.seunghunhome.com [188bet网站]
  ear battery becoming possible
  会发电的耳朵
  deep within the ear of all mammals is a spiral-shaped structure called a cochlea (耳蜗). it contains two chambers, each filled with a different liquid. one fluid contains dissolved minerals, while the other has a higher proportion of potassium (钾). a thin membrane (隔阂) separates the two chambers and cells in it continually pump potassium from one chamber into the other. the difference in potassium concentrations (浓度) between the chambers creates a small voltage (电压) difference between them. so it's like a battery that never loses its charge, explained anantha, an electrical engineer at the mit. his experiment shows fluids in the inner ear can actually power an electronic device. but it is far less powerful than those used to run watches or calculators.
   不可思议看似不起眼的小小耳朵居然能够发电,人体还有多少美妙之处尚待咱们去发现呢?
  heroes for reading
  超级英豪现场平话
  disney xd and marvel comics have launched a new children's literacy campaign at the burbank library in california. the campaign is called marvel comics close-up (特写). the goal is to use comic books to encourage kids to read. disney and marvel donated 210,000 books to libraries and schools across the united states. many stars from disney xd read spider-man comic books to 70 kids from boys & girls clubs in southern california. david levine, the vice president of disney xd worldwide, says great stories and great characters, like spider-man and the avengers, are key to making reading fun.
   除了有超级英豪相伴,还能亲耳感触原声重现,这样的读书会谁能不喜欢呢!

  • 上一篇外语188bet.com:
  • 下一篇外语188bet.com:
  •  更新时刻:2013-04-07 16:35:10  作者:佚名 [标签: 落英缤纷 五光十色 前沿 前沿 面膜 前沿 ]
    姓 名: *
    E-mail:
    评 分: 1分 2分 3分 4分 5分
    谈论内容:
    宣布谈论请恪守我国各项有关法律法规,谈论内容只代表网友个人观点,与本网站态度无关。
    没有相关外语188bet.com
    | 设为主页 | 加入收藏 | 联络咱们 | 网站地图 | 手机版 | 188bet.com宣布

    Copyright 2006-2013 © 结业188bet网站 All rights reserved 

     [我国免费188bet网站]  版权所有