英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

背诵为王 第 四 册 第 51 课

时间:2007-05-29 08:10来源:互联网 提供网友:lujjjjjjhy   字体: [ ]
特别声明:本栏目内容均从网络收集或者网友提供,供仅参考试用,我们无法保证内容完整和正确。如果资料损害了您的权益,请与站长联系,我们将及时删除并致以歉意。
    (单词翻译:双击或拖选)

Lesson51 Dolphins
Some people think that dolphins have a real language and that if we couldlearn their language; we could eventually start talking to them anddiscussing the important news of the day.
Sadly, this is only a dream. They may have very big brains and they may makelots of strange noises, but they do not, if we are honest about it, have atrue language. It is nice to think they do, but it is simply not thecase.They do, however, have a very special talent for using their noises tofind their way about the oceans and to locate shoals of fish. This is a kindof sonar - an echo-location system. What happens is that the dolphin swimsalong, chirping2 and squeaking4, and these very high-pitched sounds spreadthrough the water until they hit some solid object. Then the sound-wavesbounce back to the dolphin. The animal can tell how far away the object isby checking how long it takes for the sound to reach him. This feature ofsound detection is copied by human beings onto some devices used insubmarines, helping5 them to locate objects and avoid collisions.
With all its special qualities, it is easy to see why we find the dolphin soattractive. It has graceful6 movement, it is intelligent, it is helpful tothose in trouble, it has a playful character and it has a face that alwayslooks happy.
These are all qualities we admire in human beings, so it is not surprisingthat we are so fond of the dolphin.

shoal 鱼群
chirp1 吱喳而鸣
squeak3 发吱吱声

海豚
有些人认为海豚有真正的语言,如果能学会它们的语言,我们就能最终和它们交谈,谈论当今重要的新闻。可惜的是,这只是一个梦想。海豚拥有很大的大脑,能够发出许多奇怪的声音,但是老实讲,它们并不拥有真正的语言。能这样认为固然不错,但这不是事实。
然而,海豚确实有特殊的才能,可以利用它们发出的声音在大海里探路和确定鱼群的位置。这是一种声纳装置,一种回声定位系统。具体来讲,海豚边游动边发出嘁嘁喳喳的声音,这些音调很高的声音在水里传播,碰上坚硬的物体后,声波就返回到了海豚。通过声音返回所需的时间,海豚就能确定物体有多远。人类模仿海豚这种声音探测的特征发明了一些潜水艇用的定位和避免碰撞的装置。
海豚具有如此多独特的品质,那就不难理解它为什么那么惹人喜爱了。它动作优雅,聪明伶俐,乐于帮助处于危难之中的人,它生性好玩,还有一张看上去总是很快乐的脸。
这些都是我们人类崇尚的品质,所以我们如此喜欢海豚就一点也不奇怪了。


点击收听单词发音收听单词发音  

1 chirp MrezT     
v.(尤指鸟)唧唧喳喳的叫
参考例句:
  • The birds chirp merrily at the top of tree.鸟儿在枝头欢快地啾啾鸣唱。
  • The sparrows chirp outside the window every morning.麻雀每天清晨在窗外嘁嘁喳喳地叫。
2 chirping 9ea89833a9fe2c98371e55f169aa3044     
鸟叫,虫鸣( chirp的现在分词 )
参考例句:
  • The birds,chirping relentlessly,woke us up at daybreak. 破晓时鸟儿不断吱吱地叫,把我们吵醒了。
  • The birds are chirping merrily. 鸟儿在欢快地鸣叫着。
3 squeak 4Gtzo     
n.吱吱声,逃脱;v.(发出)吱吱叫,侥幸通过;(俚)告密
参考例句:
  • I don't want to hear another squeak out of you!我不想再听到你出声!
  • We won the game,but it was a narrow squeak.我们打赢了这场球赛,不过是侥幸取胜。
4 squeaking 467e7b45c42df668cdd7afec9e998feb     
v.短促地尖叫( squeak的现在分词 );吱吱叫;告密;充当告密者
参考例句:
  • Squeaking floorboards should be screwed down. 踏上去咯咯作响的地板应用螺钉钉住。 来自《简明英汉词典》
  • Can you hear the mice squeaking? 你听到老鼠吱吱叫吗? 来自《简明英汉词典》
5 helping 2rGzDc     
n.食物的一份&adj.帮助人的,辅助的
参考例句:
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
6 graceful deHza     
adj.优美的,优雅的;得体的
参考例句:
  • His movements on the parallel bars were very graceful.他的双杠动作可帅了!
  • The ballet dancer is so graceful.芭蕾舞演员的姿态是如此的优美。
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎点击提交分享给大家。
------分隔线----------------------------
顶一下
(8)
88.9%
踩一下
(1)
11.1%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴