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【英语时差8,16】光速与星际高速路（下）

时间：2015-11-25 07:09:18

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（单词翻译）

Likewise, light travels at its maximum speed through a vacuum-the interstellar highway-but it slows down when it enters air, water, or some other medium. Through air, light moves a hint slower: forty miles-per-second less than its maximum speed. Through glass, light moves almost eighty-thousand miles-per-second slower. Light moves more than a hundred thousand miles-per-second slower through a diamond-less than half its speed in a vacuum. Light moves so quickly anyway, do we ever notice this change in speed? Actually, we do. When light slows down it also bends slightly. This is know as refraction. Lenses use the lower speed limit of light in glass to bend and focus the light. If light always moved at it’s maximum speed, none of our telescopes, eyeglasses--or even our eyes themselves-would ever work.


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0 actually wJSyE     
adv.实际上，事实上，竟然，居然，如今
参考例句：
  • he looks young, but she's actually 50.她看上去年轻，可是实际上已五十岁了。
  • Actually,that's not quite right.实际上，那不完全对。
0 air 5KuyO     
n.空气
参考例句：
  • We know air has weight.我们知道空气有重量。
  • I opened the window and took a breath of fresh air. 我打开窗子，吸了一口新鲜空气。
0 almost 7Llyo     
adv.几乎，差不多
参考例句：
  • The band has been on the road for almost a month. 那支乐队进行巡回演出近一个月了。
  • We stay in almost every night and watch television.我们几乎每个晚上都在家里看电视。
0 also 5LHyk     
adv.也，亦；并且；同样；而且，还
参考例句：
  • I also like chocolate ice cream.我也喜欢吃巧克力冰淇淋。
  • People also like to have a Christmas tree in the living-room.人们同样喜欢在起居室内摆一棵圣诞树。
0 always uLSyb     
adv.总是，无例外地；永远，始终
参考例句：
  • The nurse is always full of thought for her patients.这名护士对病人总是关心备至。
  • You are always welcome here.在这儿你永远受欢迎。
0 anyway eMoy3     
adv.不管怎样；无论如何
参考例句：
  • Anyway I'm free now . Let me go with you. 我反正闲着没事,就陪你走一趟吧。
  • Anyway, you can try. 至少你可以试试。
0 as pNiyL     
conj.按照；如同
参考例句：
  • He got work in a hotel as a waiter.他在一家旅馆找到了当服务生的工作。
  • In the hotel,the old men were drinking away as usual.在旅馆里，这些老人和往常一样喝个不停。
0 bend uQMy0     
n.弯；拐角；屈服；vt.（bent，bent）使弯曲，使屈服；vi.弯身；弯腰
参考例句：
  • Can we bend the ruler?我们可以把尺子弄弯吗？
  • Nobody could bend me to his will.谁也不能使我屈从他的意志。
0 bends TymzMR     
n.潜水员病
参考例句：
  • Watch out for sharp bends and adjust your speed accordingly. 当心急转弯并相应调整车速。
  • Before it reaches the church, the road bends to the left. 那条路在到达教堂前就向左弯了。
0 change 6U0yB     
n.变化；零钱；vt.改变；更换；vi.变化；更换
参考例句：
  • You should change an idea.你应该换个思路。
  • Shall we change seats?咱们要不要交换座位？
0 enters ac7091f0a5db64e9059789cdea87e4c2     
v.进入( enter的第三人称单数 )；进去；参加；登记
参考例句：
  • Nearly everybody enters for 'The Nicest Garden Competition' each year, but Joe wins everytime. 几乎每年每人都报名参加“最佳花园赛”，但每次都是乔获胜。 来自《用法词典》
  • A boy who has good manners stands up in an automatic movement when a lady enters the room. 一个有礼貌的孩子，在一个女士进入房间时，便会不假思索地站起来。 来自《简明英汉词典》
0 even EiUzR     
adj.平坦的，偶数的，相等的；adv.甚至，恰好，正当
参考例句：
  • It was cold yesterday,but it's even colder today. 昨天冷，今天更冷了。
  • He's the best teacher even though he has the least experience.尽管他经验最少，但教得最好。
0 ever ZijzR     
adv.曾经；永远；不断地；在任何时候；究竟
参考例句：
  • Have you ever been to hangzhou?你曾经去过杭州吗？
  • I will be young and strong and beautiful for ever.我将永远年轻、强壮，永远漂亮。
0 focus kjnxK     
n.焦点，焦距；vi.聚焦，注视；vt.使聚焦，调焦，集中
参考例句：
  • She was the focus of everyone's attention.她是大家注意的焦点。
  • The noise made it hard for me to focus on work.噪音让我无法集中注意力工作。
0 forty Zi4x1     
num.四十，第四十
参考例句：
  • The woman may be forty.那位妇女可能有四十岁。
  • Life begins at forty.[谚]人生始于四十。
0 glass 1gsxR     
n.玻璃，玻璃杯；pl.眼镜；玻璃制品
参考例句：
  • Fill the glass with wine.把杯子倒满酒。
  • I can see the hill through the clear glass.通过透明的玻璃我能看到小山。
0 half LemzT     
n./adj.半，一半，半个
参考例句：
  • Half of six is three.六的一半是三。
  • Half of the students go to school early.一半的学生上学早。
0 hint IdgxW     
n.暗示，示意；[pl]建议；线索，迹象；v.暗示
参考例句：
  • He gave me a hint that I was being cheated.他暗示我在受人欺骗。
  • He quickly took the hint.一点他就明白了。
0 hundred ncsxZ     
num.百，一百；（pl.）许多；adj.一百的；许多
参考例句：
  • One hundred centimeters make one meter.一百厘米等于一米。
  • I want some hundred dollar notes.我想要一些百元纸币。
0 lenses 30996d2550dfb61e169d884caec35abb     
n.透镜，镜头( lens的名词复数 )；眼睛中的水晶体
参考例句：
  • a pair of glasses with tinted lenses 一副有色镜片眼镜
  • Wash the lenses in saline solution. 用盐溶液清洗镜片。
0 less q1Ux4     
adj.更少的，更小的；adv.更少地，更小地；n.少量，次要；prep.减
参考例句：
  • I read much less now than I did at school.我现在看书远比我上学时少。
  • You can't buy the dress with less than 50 yuan.买这件衣服没有50元钱下不来。
0 light 61SxT     
n.光，光亮，灯；adj.轻的，光亮的，容易的；v.点燃，著火，变亮
参考例句：
  • The sun gives light and heat.太阳发出光和热。
  • The traffice light was green.交通信号灯是绿色。
0 likewise i1SxY     
adv.同样地，照样地；也，又
参考例句：
  • The explorers had to undergo much suffering.探险者不得不忍受很多困苦。
  • The planes have to undergo rigorous safety checks.飞机必须经过严密的安全检查。
0 limit P0Yxy     
vt.限制；限定；n.界限；限度
参考例句：
  • We must limit our spending.我们必须限制我们的开支。
  • The speed limit is 120 kilometers per hour.速度限定是120公里每小时。
0 lower 2Acxw     
adj.较低的；地位较低的，低等的；低年级的；下游的；vt.放下，降下，放低；减低
参考例句：
  • Society is divided into upper,middle and lower classes.社会分为上层、中层和下层阶级。
  • This price is his minimum;he refuses to lower it any further.这个价格是他开的最低价，他拒绝再作任何降价。
0 maximum zBmxW     
n.极点，最大量，极大；adj.最高的，最大极限的；
参考例句：
  • This hall holds a maximum of seventy people.这厅最多能容纳七十人。
  • What's your maximum distance ever walked?你最多走过多远?
0 medium 0CRxh     
n.媒体，方法，媒介；adj.适中的，中等的
参考例句：
  • He was a man of medium height.他是个中等个子的男子。
  • Do you have the medium size?您有中号的吗？
0 moved 11dfd868d93bc2b0e4ce0bee5756f8b1     
adj.受感动的v.移动，搬动( move的过去式和过去分词 )；搬家；行动；进展
参考例句：
  • The last time we moved house there were very few breakages. 我们上次搬家时几乎没有什么物品破损。
  • The procession moved into the church. 人们排着队走进教堂。
0 moves 85b51ace16ad425d5d1e15832fc38da0     
鸽子
参考例句：
  • The doves winged skyward. 鸽子向空中飞去。 来自《简明英汉词典》
  • The doves were cooing in the trees. 鸽子在林中咕咕啼鸣。 来自《现代汉英综合大词典》
0 none pHjxr     
adv.一点也不；prep.没人，毫无；pron.没有人，没有任何东西
参考例句：
  • Remember that none is perfect.记住没有任何人是完美的。
  • There's almost none left.几乎一个没剩。
0 notice SH1x7     
n.通知，布告；注意，认识；vt.看到，注意到
参考例句：
  • Post this notice on the wall.把这个通知贴在墙上。
  • I didn't notice you when you passed by.你走过时，我没有注意到你。
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 slower jiNzIS     
v.减慢adj.慢的( slow的比较级 )；迟钝的；慢速的；迟迟不…
参考例句：
  • The train went slower and slower until it stopped altogether. 火车愈来愈慢，最后完全停了。
  • Progress was slower than expected. 进展比预计的缓慢。
0 slows 2da0aa046eca94ca88cbfb2b6f059337     
v.（使）缓行， （使）减速( slow的第三人称单数 )
参考例句：
  • The conversation slows down the action of the play. 这些对话使剧情进展有所减缓。 来自《现代汉英综合大词典》
  • The river slows on the flat bottom. 河水在平坦的河床上减慢了流速。 来自《简明英汉词典》
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 telescopes a30f80a975967e0569eee24dc23498bc     
n.望远镜( telescope的名词复数 )
参考例句：
  • optical instruments such as microscopes and telescopes 显微镜和望远镜等光学仪器
  • Telescopes and microscopes are optical instruments. 望远镜和显微镜是光学仪器。 来自《简明英汉词典》
0 thousand 6ojwe     
num./n./a.一千；（pl.）许许多多，成千上万
参考例句：
  • How many hundreds are there in a thousand?一千里有多少个一百？
  • The college has five thousand teachers and students in all.该校共有师生5千人。
0 through 1IMzX     
adv.穿越，完全；prep.经过，穿过，凭借
参考例句：
  • He was running through the streets.他跑着穿过条条街道。
  • The train went through a tunnel.火车通过一条隧道。
0 travels SgWzXZ     
n.旅途， （非正式）旅行笔记，游记；旅行( travel的名词复数 )；移动；游历；[机械工程]机械运动（尤指往复运动）v.行进( travel的第三人称单数 )；步行；经过；走过…
参考例句：
  • Stories about his travels abound. 有关他游历的故事多得很。
  • She travels in cyberspace by sending messages to friends around the world. 她利用电子空间给世界各地的朋友们发送信件。 来自《简明英汉词典》
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 vacuum 3KxzN     
n.真空，空间，真空吸尘器；adj.真空的，产生(利用)真空的；v.用吸尘器打扫
参考例句：
  • Sound waves will not travel through a vacuum.声波在真空里不能传播。
  • He sells vacuum cleaners.他经销真空吸尘器。
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。

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