400-820-0859Bode's Law托福听力原文翻译及问题答案,关于这个问题常春藤外语平台小编就简单为大家说一下。
一、Bode's Law托福听力原文：
Narrator:Listen to part of a lecture in an astronomy class.You will not need to remember the numbers the professor mentions.
MALE PROFESSOR:OK.Let's get going.Today I'm going to talk about how the asteroid belt was discovered.And...I'm going to start by writing some numbers on the board.Here they are:We'll start with zero,then 3,...6,...12.Uh,tell me what I'm doing.
FEMALE STUDENT:Multiplying by 2?
MALE PROFESSOR:Right.I'm doubling the numbers,so 2 times 12 is 24,and the next one I'm going to write after 24 would be...
FEMALE STUDENT:48.
MALE PROFESSOR:48.Then 96.We'll stop there for now.Uh.now I'll write another row of numbers under that.Tell me what I'm doing.4,7,10...How am I getting this second row?
MALE STUDENT:Adding 4 to the numbers in the first row.
MALE PROFESSOR:I'm adding 4 to each number in the first row to give you a second row.So the last two will be 52,100,and now tell me what I'm doing.
FEMALE STUDENT:Putting in a decimal?
MALE PROFESSOR:Yes,I divided all those numbers by 10 by putting in a decimal point.Now I'm going to write the names of the planets under the numbers.Mercury...Venus...Earth...Mars.So,what do the numbers mean?Do you remember from the reading?
MALE STUDENT:Is it the distance of the planets from the Sun?
MALE PROFESSOR:Right.In astronomical units–not perfect,but tantalizingly close.The value for Mars is off by...6 or 7 percent or so.It's...but it's within 10 percent of the average distance to Mars from the Sun.But I kind of have to skip the one after Mars for now.Then Jupiter's right there at 5-point something,and then Saturn is about 10 astronomical units from the Sun.Um,well,this pattern is known as Bode's Law.
Um,it isn't really a scientific law,not in the sense of predicting gravitation mathematically or something,but it's attempting a pattern in the spacing of the planets,and it was noticed by Bode hundreds of years ago.Well,you can imagine that there was some interest in why the 2.8 spot in the pattern was skipped,and um...but there wasn't anything obvious there,in the early telescopes.Then what happened in the late 1700s?The discovery of...?
FEMALE STUDENT:Another planet?
MALE PROFESSOR:The next planet out,Uranus–after Saturn.And look,Uranus fits in the next spot in the pattern pretty nicely,um,not perfectly,but close.And so then people got really excited about the validity of this thing and finding the missing object between Mars and Jupiter.And telescopes,remember,were getting better.So people went to work on finding objects that would be at that missing distance from the Sun,and then in 1801,the object Ceres was discovered.
And Ceres was in the right place–the missing spot.Uh,but it was way too faint to be a planet.It looked like a little star.Uh,and because of its starlike appearance,um,it was called an asteroid.OK?"Aster"is Greek for"star,"as in"astronomy."Um,and so,Ceres was the first and is the largest of what became many objects discovered at that same distance.Not just one thing,but all the objects found at that distance form the asteroid belt.So the asteroid belt is the most famous success of this Bode's Law.That's how the asteroid belt was discovered.
二、Bode's Law托福听力中文翻译：
旁白：在天文学课上听一节课的一部分。你不需要记住教授提到的数字。
男教授：好的。我们开始吧。今天我要谈谈小行星带是如何被发现的。和我先在黑板上写一些数字。它们是：我们从零开始，然后是3，。。。6.告诉我我在做什么。
女生：乘以2？
男教授：对。我把数字加倍，所以2乘以12等于24，下一个24后写的是。。。
女生：48岁。
男教授：48岁。然后是96。我们现在就到此为止。嗯现在我再在下面写一行数字。告诉我我在做什么。4,7,10...第二排怎么走？
男学生：在第一行的数字上加4。
男教授：我在第一行的每个数字上加4，给你第二行。最后两个是52100，现在告诉我我在做什么。
女学生：输入小数点？
男教授：是的，我把所有的数字都除以10，加上一个小数点。现在我要把行星的名字写在数字下面。水星维纳斯世界火星那么，这些数字意味着什么？你还记得阅读的内容吗？
男学生：是行星与太阳的距离吗？
男教授：对。以天文单位计算——虽然不完美，但非常接近。Mars的值已关闭。。。6%或7%左右。这是。。。但它距离火星与太阳的平均距离不到10%。但我现在不得不跳过火星之后的那一个。然后木星在5点左右，然后土星距离太阳大约10个天文单位。这个模式被称为博德定律。
嗯，这不是一条真正的科学定律，不是从数学上预测万有引力之类的意义上来说，但它正在尝试一种行星间距的模式，数百年前博德就注意到了这一点。嗯，你可以想象，人们对为什么跳过模式中的2.8点很感兴趣，嗯。。。但在早期的望远镜中，那里没有任何明显的东西。那么18世纪末发生了什么？发现。。。？
女生：另一个星球？
男教授：土星之后的下一颗行星，天王星。看，天王星很好地适应了模式中的下一个位置，嗯，不是很完美，但很接近。于是人们对这件事的有效性感到非常兴奋，并找到了火星和木星之间失踪的物体。记住，望远镜正在变得更好。于是人们开始寻找与太阳相距如此遥远的天体，然后在1801年，谷神星被发现。
而谷神星在正确的位置——缺失的位置。呃，但它太暗了，不可能是行星。它看起来像一颗小星星。呃，由于它的星形外观，呃，它被称为小行星。好啊“Aster”在希腊语中是“星”的意思，如“天文学”因此，谷神星是第一个也是在相同距离发现的众多天体中最大的一个。不仅仅是一件事，在这一距离发现的所有物体都形成了小行星带。因此，小行星带是博德定律最著名的成功之处。小行星带就是这样被发现的。
三、Bode's Law托福听力问题：
Q1:1.What is Bode’s law?
A.A law of gravitation
B.An estimate of the distance between Mars and Jupiter
C.A prediction of how many asteroids there are
D.A pattern in the spacing of the planets
Q2:2.Why does the professor explain Bode's Law to the class?
A.To describe the size of the asteroids
B.To explain how the asteroids belt was discovered
C.To explain how gravitational forces influence the planets
D.To describe the impact of telescopes on astronomy
Q3:3.How does the professor introduce Bode's Law?
A.By demonstrating how it is derived mathematically
B.By describing the discovery of Uranus
C.By drawing attention to the inaccuracy of a certain pattern
D.By telling the names of several of the asteroids
Q4:4.According to the professor,what two factors contributed to the discovery of the asteroid Ceres?[Click on 2 answers.]
A.Improved telescopes
B.Advances in mathematics
C.The discovery of a new star.
D.The position of Uranus in a pattern
Q5:5.What does the professor imply about the asteroid belt?
A.It is farther from the Sun than Uranus.
B.Bode believed it was made up of small stars.
C.It is located where people expected to find a planet.
D.Ceres is the only one of the asteroids that can be seen without a telescope.
Q6:6.Why does the professor say this.
A.To introduce an alternative application of Bode's Law.
B.To give an example of what Bode's law cannot explain.
C.To describe the limitaions of gravitational theory.
D.To contrast Bode's Law with a real scientific law.
四、Bode's Law托福听力答案：
A1:正确答案：D
A2:正确答案：B
A3:正确答案：A
A4:正确答案：AD
A5:正确答案：C
A6:正确答案：D
