在线英语听力室

朗文3L看听学英语第四册 Lesson 17

时间:2007-03-12 16:00:00

搜索关注在线英语听力室公众号:tingroom,领取免费英语资料大礼包。

(单词翻译)

  17 Television Day: Computers
  TV Commentary:
  ... the astronauts are returning to earth at exactly 5.24. Splash-down will be in the Pacific, 427 miles west of Hawaii."
  You have often heard announcements like this on television. Scientists can tell us exactly when a space-capsule will arrive on the moon, for instance, and exactly when it will return. They can calculate things like this to the nearest second. How do they do it? Well of course, they use mathematics. We can all do simple sums on paper, but we must use computers for extremely difficult calculations. Perhaps you have seen mechanical calculating-machines in banks and offices. They can work very quickly but nothing like computers. Computers aren't mechanical. They don't have wheels and gears in them. Instead, they work on electrical circuits and can do difficult calculations at tremendous speed. They can work 100 million times faster then the human mind!


分享到:


点击收听单词发音收听单词发音  

0 west pgyw4     
n.西;西方
参考例句:
  • The sun was dropping toward the west.太阳正向西边落下。
  • Wales lies on the west of England.威尔士位于英格兰的西面。
0 exactly Xn7xG     
adv.准确地;严格地
参考例句:
  • What I want is exactly this one.我要的就是这一个。
  • I beg your pardon,what you say is not exactly correct.对不起,你说的话并不完全对。
0 circuits a190be291028c6c1bfdd0e5587fcd06a     
n.电路( circuit的名词复数 );巡回;(体育运动)巡回赛;环行
参考例句:
  • It is called series circuits in physics. 它在物理学上被称为串联电路。 来自《简明英汉词典》
  • Its use is only for precise work, as in making microelectronic circuits. 这类用途仅限于精密加工,如制造微电子电路等方面。 来自辞典例句
0 Hawaii Vrwz4B     
n.夏威夷(美国州名)
参考例句:
  • I met her in hawaii.我在夏威夷认识了她。
  • He is on vacation in hawaii.他去夏威夷度假了。
0 gears 56f3f885234d52d7bd89394d19228991     
n.齿轮( gear的名词复数 );装备;挡;(做某事的)速度
参考例句:
  • Careless use of the clutch may damage the gears. 离合器使用不慎可能会损坏传动装置。
  • A car has five gears. 汽车有五挡。 来自《简明英汉词典》
0 things e64c3132023b29762b354a750b474c53     
n.(个人的)用品;需要的东西;生物;事实;物( thing的名词复数 )
参考例句:
  • Things ain't what they used to be. 现在情况不比从前了。
  • Things have been going badly . 事情进展得不顺利。
0 television HpRwo     
n.电视(机) [=TV]
参考例句:
  • Do you often watch television?你经常看电视吗?
  • Please turn off the television.请把电视关上。
0 astronauts 193819d19d3e8fd8dd43dc2d745c2916     
n.宇航员,太空人( astronaut的名词复数 )
参考例句:
  • Astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • Astronauts work in weightless conditions. 宇航员在失重的条件下工作。
0 mathematics VBgxK     
n.(用作单)数学;(用作单或复)计算(能力)
参考例句:
  • He has come out in front in the study of mathematics.他在数学方面已名列前茅。
  • She is working at a difficult problem in mathematics.她在做一道数学难题。
0 calculations 9a7cbfb33501452ad191bb1f0c3e6209     
n.计算( calculation的名词复数 );盘算;自私的打算;推断
参考例句:
  • We can exclude the possibility of total loss from our calculations. 我们可以在预测中把彻底失败的可能性排除在外。 来自《简明英汉词典》
  • He scored out both calculations and did them again. 他把两个计算结果都划掉,又把它们计算了一遍。 来自《简明英汉词典》
0 offices 2b80472febb0c52ab4551deca95dcd7b     
n.办公室( office的名词复数 );公职;(政府部门的)部;有特定用途的房间[建筑物]
参考例句:
  • new offices with wall-to-wall carpeting 房内铺满地毯的新办公室
  • The development will consist of 66 dwellings and a number of offices. 新建楼区将由66栋住房和一些办公用房组成。
0 wheels f13863ed7d6b0224a0046d9646ecd02c     
n.轮子( wheel的名词复数 );旋转;Wheels 汽车;有…轮子的汽车(或自行车等)
参考例句:
  • The wheels sank deeper into the mire. 轮子在泥潭中陷得更深了。
  • The car wheels got stuck in the mud. 汽车轮子陷到泥里去了。
0 course 1zcx6     
n.课程,讲座,过程,路线,一道(菜)
参考例句:
  • The college course was then cut to three years.大学学制那时缩短到三年。
  • Of course,I don't always sleep in the afternoons.当然,我并不总是在下午睡觉。
0 instance 66oxM     
n.例,例证,实例
参考例句:
  • Can you quote me a recent instance?你能给我举一个最近的例子吗?
  • He's a greedy boy,yesterday,for instance,he ate all our biscuits!他是个贪吃的孩子――比如,他昨天把我们的饼干都吃了!
0 announcements bccd1749fc2f1ef02fdc62280cd40df0     
n.通告( announcement的名词复数 );布告;预告;宣告
参考例句:
  • Announcements were made over the PA. 通告是从广播系统播出的。
  • What is your preferred notification method for Cyberway announcements? 赛百威资料首选的通告您的方法是? 来自互联网
0 returning 167a77939d6d79814e846ff5885b63b9     
v.返回,回来( return的现在分词 );恢复;还;归还
参考例句:
  • A growing number of people are returning to full-time education. 越来越多的人重返学校接受全日制教育。
  • The people lined the streets to hail the returning heroes. 人们夹道欢迎凯旋的英雄们。 来自《简明英汉词典》
0 pacific NKexe     
adj.和解的,平静的;[P-]太平洋的;n.[the P -]太平洋
参考例句:
  • China lies on the east of the Pacific.中国位于太平洋东部。
  • He is serving on a warship in the Pacific.他在太平洋海域的一艘军舰上服役。
0 commentary kXeyu     
n.评论,评注;实况广播报导,现场口头评述
参考例句:
  • He is giving the commentary on the basketball game.他正在对篮球赛作评论。
  • His running commentary on the football match was excellent.他对这次足球赛所作的实况报道十分精彩。
0 arrive FNHyC     
vi.到达;(时间、事件)到来,发生;达到
参考例句:
  • You must arrive early tomorrow.你明天必须早点来。
  • It will arrive at midnight.它在午夜时到达。
0 mechanical YCDxt     
adj.机械(学)的;力学的;机械似的;手工操作的
参考例句:
  • He borrowed a mechanical book from me.他从我这儿借了一本力学方面的书。
  • He looks very mechanical.他看上去非常呆板。
0 human gcCxP     
n.人,人类;adj.人类的,人性的,有同情心的
参考例句:
  • Human beings can talk,but animals can't.人会说话,而动物却不会。
  • Kehr is a very human person.凯尔是一个极富人情味的人。
0 Miles aoczUD     
n.英里( mile的名词复数 );很多;一英里赛跑;大面积
参考例句:
  • Eight kilometres is roughly equivalent to five miles. 八公里约等于五英里。
  • a fortress town enclosed by four miles of ramparts 由四英里长的城墙围着的设防城镇
0 simple AyMwQ     
adj.简单的,易懂的,单纯的,纯朴的
参考例句:
  • He wrote a story in simple English.他用简单的英语写了一则故事。
  • He was as simple as a child.他像孩子一样天真。
0 electrical jq9x5     
adj.电的,有关电的
参考例句:
  • We can transmute water power into electrical power.我们能将水力变成电力。
  • He told his children to stay away from dangerous electrical things.他叫他的孩子们不要接近危险的电器。
0 speed evFwb     
vt./vi(sped,sped,speeded,speeded)加快;飞跑;n.速度
参考例句:
  • The car was running at high speed.汽车急速地向前行驶。
  • We'll never get there if he doesn't speed up. 如果他不快些走,我们一定到不了那里。
0 return mDvyr     
vi.返回,回来;送还;回复,恢复;vt.归还,送还;n.返回,归来;偿还,归还;回复
参考例句:
  • I'll return at 10 this evening.我今晚十点回来。
  • I often return in dreams to my hometown.我常常在梦中回到我的故乡。
0 use Yj4wU     
v.使用;n.用途,利用
参考例句:
  • Do you often use it?你经常用它吗?
  • What use does it have?它有什么用途?
0 moon eEGxH     
n.月亮
参考例句:
  • He looked at the moon.他看了看月亮。
  • The moon is shining bright.月亮发出了明亮的光。
0 perhaps wM0x5     
adv.也许,可能
参考例句:
  • Perhaps it will rain in the afternoon.下午可能有雨。
  • Perhaps I can help you.也许我能帮帮你的忙吧。
0 work OoOyu     
n.工作,劳动
参考例句:
  • We all work hard.我们都努力工作。
  • Her work is to take care of the children.她的工作是照料好孩子。
0 faster 2twzJx     
adj.更快的;快的( fast的比较级 );走得快;感光快的;[摄影术]快动作的(镜头)adv.更快地
参考例句:
  • According to the theory of relativity, nothing can travel faster than light. 根据相对论,任何东西都无法超越光速。
  • Mary bragged that she could run faster than Jack. 玛丽夸口说她比杰克跑得快。 来自《简明英汉词典》
0 earth ar7xL     
n.陆地;大地;地球
参考例句:
  • The earth moves round the sun.地球绕着太阳转。
  • Spring returns to the earth.大地回春。
0 scientists 0d40887127bee8f7731f5c4f95eb5331     
n.科学家( scientist的名词复数 )
参考例句:
  • Scientists have established a connection between cholesterol levels and heart disease. 科学家已证实胆固醇含量与心脏病之间有关联。
  • Scientists disagree about how the universe was created. 科学家对宇宙是怎样形成的有分歧。
0 instead c6uxQ     
adv.代替;顶替
参考例句:
  • She decided to leave here on Sunday instead of Monday.她决定星期日而不是星期一离开这里。
  • Will you go to the party instead of me?你替我赴宴好吗?
0 nothing 6Hqx7     
adv.毫不;n.微不足道的人或事;pron.什么也没有
参考例句:
  • I have nothing to do at the moment.此刻我无事可做。
  • She knows nothing about music.她一点也不懂音乐。
0 second qZTxG     
num.第二;adj.第二的;别的;n.第二;秒;片刻
参考例句:
  • Who was second in the high jump?跳高比赛第二名是谁?
  • This is the second type.这是第二种。
0 mind DDjxa     
n.思想,主意,心意;v.介意,照顾,留心
参考例句:
  • I've changed my mind.我一经转变主意。
  • You really don't mind?你真的不介意?
0 extremely 2tJzAz     
adv.极其,非常,极度
参考例句:
  • The film is extremely good,I just cannot miss it.这部电影太精彩了,我非看不可。
  • The old man was extremely difficult to get along with.这个老人极难相与。
0 tremendous EmFwh     
adj.巨大的,极大的;很好的,非常好的
参考例句:
  • This book was the outcome of a tremendous amount of scientific work.这本书是大量科学研究工作的成果。
  • There is a tremendous difference between them.他们之间有着极大的差别。
0 seen ujyzZX     
vbl.(see的过去分词)看见
参考例句:
  • Since I left college, I have not seen him.自从我离开大学以后,就没有见过他了。
  • I hope to have seen the film next week.我希望下星期能看到这部电影。
0 million D7QzO     
num.百万,100万;n.无数,大众
参考例句:
  • I've seen it a million times.我在书上看过无数遍了。
  • What will you do if you had a million dollars?如果你有一百万美元,你会干什么?
0 difficult Gv8xV     
adj.困难的,艰难的,不容易的
参考例句:
  • I find English very difficult.我发现英语很难。
  • It is difficult to climb a mountain.爬山是很艰难的。
0 quickly LkAz66     
adv.很快地,迅速地
参考例句:
  • Don't eat so quickly.不要吃得这么快。
  • He went into the office quickly.他迅速地走进办公室。
0 computers 524164822d03894ee68052e183e7ea36     
n.(电子)计算机,电脑( computer的名词复数 )
参考例句:
  • Personal computers are cheap and getting cheaper. 个人电脑现在价格便宜,以后还会越来越便宜。
  • the use of computers in the classroom 在课堂使用计算机
0 Banks 7y4z2S     
n.银行( bank的名词复数 );(条形的)堆;(河的)岸;库存v.堆积( bank的第三人称单数 );筑(堤);将(钱)存入银行;(转弯时)倾斜飞行
参考例句:
  • Japanese banks remain bearish. 日本银行继续看跌。
  • Lending by banks rose to $10 billion last year. 去年银行发放的贷款增至100亿元。
0 nearest UnqzAz     
adj.最近的
参考例句:
  • Can you tell me the nearest way to the station?你能告诉我去火车站最近的路吗?
  • Did you come by the nearest road?你是由最近的路来的吗?
0 sums 21149749d0f8eea0c0a5698922e07ee4     
abbr.summons 传票n.总数( sum的名词复数 );算术;金额;算术题(的解答)v.合计( sum的第三人称单数 );总结,归纳;总计,计算…的总数(常与 up 连用);集中(常与 up 连用)
参考例句:
  • substantial sums of money 大笔大笔的钱
  • My sums were wrong and I had to do them over. 我的总数错了,只好再算一遍。 来自《简明英汉词典》
0 calculate aTXyx     
vt.计算,核算;估计,推测;计划,打算
参考例句:
  • He must calculate the probability of failure.他必须计算一下失败的概率。
  • I'll calculate what it will cost.我要估计一下那要花多少钱。

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。