英语简单阅读关于天文
❶ 关于天文学的英语文章
新概念英语第三册
Lesson 55
❷ 关于天文的英语阅读
Black Holes(黑洞)
Black holes are some of the strangest things in space. A black hole sucks in anything that gets near it. Nothing can escape from a black hole—not even light.
BLACK HOLES ARE STRONG
Nothing escapes from a black hole because its gravity is so strong. Gravity is a force that pulls one thing to another. Gravity is the force that holds you down on Earth. When you jump up, Earth’s gravity pulls you right back down. Earth’s gravity also makes the Moon orbit (go around) Earth.
The more matter (stuff) that is packed in a star, planet, moon, or other object, the stronger is its gravity. Gravity makes an object with more matter pull an object with less matter toward it. The Sun has a lot more matter than Earth. The Sun’s gravity pulls on Earth. It makes Earth orbit the Sun.
Matter is packed very tightly in some things and loosely in others. The matter that makes up an iron ball is packed much tighter than the matter that makes up a bag of feathers. A scientist would say that an iron ball is much denser than a bag of feathers.
A black hole is denser than anything you could imagine. A black hole could have a million times more stuff than our Sun. All of this stuff would be packed into an area smaller than a city. The force of gravity from so much stuff packed into such a small area is awesome.
WHERE DO BLACK HOLES COME FROM?
Astronomers and physicists think black holes come from dying stars. A dying star burns out and stops shining. All the stuff that makes up the star starts falling in on itself. The star gets denser and denser. If the star is big enough and has enough matter, it could get dense enough to become a black hole.
STUDYING BLACK HOLES
No one has really seen a black hole. You cannot see black holes because they do not give off any kind of light. Physicists used math to predict that black holes exist.
Astronomers look for signs of black holes. Astronomers study powerful rays coming from stars in deep space. The stars seem to be orbiting black holes. Astronomers think that black holes are sucking gas from the stars, and this makes the stars give off X rays.
Galaxies are enormous groups of stars. Astronomers think that most galaxies have huge black holes at their centers. The Hubble Space Telescope took pictures of a disk of hot gases at the center of our own Milky Way Galaxy. Astronomers think this disk is going around an enormous black hole right in the center of our galaxy.
黑洞(黑洞)
黑洞是在太空的一些奇怪的事。一个黑洞吸入任何靠近它。没有什么能逃脱黑hole-not甚至光。
黑洞是强大的
没有逃离黑洞因为它的引力是如此的强烈。重力是一股力量,把一件事到另一个地方。重力是地球上把你的力量。当你跳起来时,地球引力把你拉回来。地球的引力也让月球地球轨道(四处)。
越多事情(东西),装在一个明星,行星,月亮,或其他对象,它的引力就越强。物体重力使一个对象有更多物质拉向它用更少的问题。太阳比地球更重要。地球上太阳的引力拉。它使地球轨道太阳。
问题是包装非常紧密一些事情和松散。这件事让一个铁球比这件事更紧了,一袋羽毛。科学家会说,一个铁球比一袋密集的羽毛。
一个黑洞的密度比你能想象的任何东西。一个黑洞可能更多的东西比太阳的一百万倍。所有的这些东西会比城市更小的区域里。这么多东西的重力挤进这么小的区域是可怕的。
黑洞来自哪里?
天文学家和物理学家认为黑洞来自垂死恒星。垂死的恒星燃烧停止照耀。所有的东西,明星开始下降。星星变得越来越密集的。如果恒星足够大,有足够的物质,它能密度足以成为一个黑洞。
研究黑洞
没有人真正看到一个黑洞。你看不见黑洞因为他们不发出任何类型的光。物理学家利用数学预测,黑洞的存在。
天文学家寻找黑洞的迹象。天文学家研究强大的射线来自恒星外层空间。星星似乎环绕黑洞。天文学家认为,黑洞吸气体从恒星,这使得星星发出X射线。
星系是巨大的恒星组。天文学家认为,大多数星系有巨大的黑洞中心。哈勃太空望远镜拍照片的一个磁盘的热气体在我们的银河系的中心。天文学家们认为这个磁盘将在一个巨大的黑洞就在银河系的中心。
❸ 求关于天文方面的多篇英语短文
到金山词霸的官网自己翻去吧
❹ 有关宇宙的英语阅读理解
Universe is a space, time, matter and energy, posed by continuum. Is a synthesis of all space and time. General understanding of the universe that we existed a temporal and spatial continuous system, including all materials, energy, and events. According to big bang cosmological model of the universe projection, age of the universe about 20 billion years.
The shape of the universe is still unknown, humans in audacity to imagine. Some people say that the universe is in fact a human-like creature in a small cell. The shape of the universe according to the big bang theory, the history of the universe can be expressed as a right-side opening of closed surfaces. Left Center for bang singularity, right 13.7 billion years to reach our now open. From left to right are: Singularity, 400,000 years of expansion, nearly 400 million years in the early dark phase, stars, galaxies and planets appear development phase, contains dark matter and dark energy accelerating expansion period.
❺ 问些简单的天文知识(英文的)
With the advanced development navigation,humanbeings explore the Universe for looking for other creatrues.
They launch the rocket to Mars and some evidence show it exists water and ice on the Mars.
People believe they will make progress at the end.
❻ 关于天文学的英语演讲短文
Also known as the Moon Taiyin, commonly known as the moon [1]. The Earth are the only natural satellite. Moon is the most obvious examples of natural satellites. In the solar system, with the exception of Mercury and Venus, the other planets have natural satellites. There is around the age of the moon 4.6 billion years. Has the moon shell, mantle, core, such as Hierarchy. On the outermost shell of average thickness of about 60-65 km. Shell month following the month are 1000 kilometers deep mantle, it accounts for most of the size of the moon. Mantle on the following month are nuclear, nuclear month temperature of about 1000 degrees, melting is likely to be the status. The Moon about 3476 kilometers in diameter, are of the Earth 3 / 11, Sun 1 / 400. The size of the moon the Earth is only 1 / 49, the quality of about 7350 quadrillion tons, equivalent to the quality of the Earth 1 / 81, the lunar surface gravity of the Earth gravity is almost 1 / 6.
❼ 有关天文英语题
hehe:)~这些关于天文的题目挺有趣的,希望能帮助你:)~~
1.meteor(流星)(又称 "shooting star" 或 "falling star") 流星体或小冰粒进入大气层后因空气磨擦生热产生的在空中的光亮条。较大的流星称作火球和火流星。
2.Mars(火星)和太阳一样有鲜红的颜色,火星为距太阳第四远,也是太阳系中第七大行星.
3.Comet(彗星)
4.moon(月球)
5.Polaris(北极星)
6.sky(天)
------------------
1.asteroid(小行星),在太阳系中,除了九大行星以外,在红色的火星和巨大的木星轨道之间,还有成千上万颗肉眼看不见的小天体,沿着椭圆轨道不停地围绕太阳公转,这些小天体就是太阳系中的小行星。
2.earth(地球),月球是围绕地球转动的一颗卫星。它围绕地球公转一周和自转一周所用的时间相同,因此月球永远只有一面对着地球。
3.Neptune(海王星)Uranus(天王星),海王星和天王星显蓝色是其外层大气层中的甲烷吸收了红光的结果。
4.Neptune(海王星)
5.Moon(月球),Mercury(水星),水星外观同月球十分相像,表面布满了大大小小的环形山即沙丘。在亿万年前也许发生过火山活动。水星表面上还到处遍布大大小小的陨星坑。
6.Mars(火星),火星的轨道是显著的椭圆形。(希腊语: 阿瑞斯)被称为战神。这或许是由于它鲜红的颜色而得来的;火星有时被称为“红色行生”。
7.Venus(金星),金星的大气压力为90个标准大气压(相当于地球海洋深1千米处的压力),大气大多由二氧化碳组成,也有几层由硫酸组成的厚数千米的云层。
❽ 一篇关于天文学的英语短文
The Greek Heavenly Thoughts
The Greek was the first recognize the distinction between the natural and the supernatural. In other words , they found the nature, since then, the cosmology(宇宙学) could never be maintain a system of myth.
Graally, the Greek believed themselves to live in a cosmos, and considered the cosmos to be an entirely natural place. Besides they saw an order in the cosmos. The order, to them, not only means an arrange, but also a good order, and also a beautiful, elegant order. With an optimism(乐观主义), they believed the order, and the cosmos were comprehensible(可知的), and furthermore, could be described in words and numbers. When the Greek formed these crucial ideas, some earliest philosophers and scientists were important and influential. The Milesians(米利都学派得的哲学家), including Thales(泰勒斯), Anaximander(阿纳克西曼德), described the cosmos in entirely natural terms for the first time. Heraclitus(赫拉克立特) insisted that the cosmos worked according to a logos(理性), which mean “word”, “account”, “measure”, and “proportion”, and if we grasp this logos, the cosmos could be understood and described well.
After the Greek accepted the idea that the cosmos was a natural place and comprehensible, some pre-Socratics(前苏格拉底时代德哲学家) overcame some significant conceptual(观念上的) hurdles to achieve a more sophisticated cosmology. There was the move from a hemispherical(半球形) universe to a spherical(球形) one, and a earth supported by water to supported by air, and then to one which need no support. In the earlier Greek cosmologies, objects were thought to drop in parallel straight lines from the top of the cosmos to the bottom, this led to the problem why the earth doesn’t fall to the bottom of the cosmos, so in this sort of the cosmos, something is required to support the earth. Then Aristotle placed the earth at the center of the cosmos, there was no the problem of the earth dropping. He believed that objects moved to the center of the cosmos, that is the earth itself.
The idea that the earth was central and stable dominated Greek astronomy and cosmology. In Greek minds, it can explain many phenomena. Firstly, the experience told Greek, if one was in rapid motion, he certainly knew about it, so they thought, if the earth has a daily rotation from west to east, there should be constant wind from east to west; if the earth is in motion around the sun, all objects will sweep off the face of the earth. Secondly, because they had no knowledge of gravity, they believe if the earth in rapid motion, it will disintegrate(解体). Thirdly, if the earth takes up different positions relative to the stars(恒星), there should be a stellar parallax(恒星视差量), one can detect slight changes in the apparent positions of the stars from the earth.
When the Greek physics, astronomy, philosophy and common sense all seemed to indicate an immobile earth, there was an important consequence, all of the motions of the heavens were real motions to the earth, not apparent ones e to the motion of the earth.
At the outset, Greek observational astronomy was rather divorced(背离) from philosophical speculation about the nature of the cosmos. Some observed the heavens and took careful notes of what they saw, some proced cosmological models based on general philosophical considerations. But no one gave a cosmological model that were anywhere near explaining, in a precise manner, the phenomena that had been record. The Pythagoreans(毕达哥拉斯学派的哲学家) made the first attempt. They believed in the center of the cosmos was a fire, not the sun, the fire was shield from the earth by a body known as the counter earth. The model was vague and speculative, and the earth moves around the fire, and between the fire and earth, there was the counter earth. Plato(柏拉图) proced a slightly better model, had central earth, with the sun, the moon, the five planets and the stars orbiting around it. Then it was a basic assumption of Greek astronomy and cosmology, if some motions seems not circular or regular, almost all Greek philosophers and scientists would consider these as some combination of several circular and regular motions. Neither of two models could account for two important phenomena relating to the point at which the sun sets. The sun does not always set e west(正西方). Where the sun sets ring a year changes from a maximum of 23.5º north of west to a maximum of 23.5°north of west. Solstices(至日,包括冬至、夏至) occur at the maximum points, while equinoxes(分日,包括春分、秋分) occur at the e west. Later Plato gave the first model that could give a reasonable account for these phenomena. The model was one of the most important Greek cosmological models. Plato made the first serious attempt to unite astronomical phenomena and cosmological traditions. He insisted that the sun, the moon, have a combination of two regular circular motions, that’s to say, the sun and the moon have a second motion in addition the daily one, offset(偏移) at an angle to it. As to the five planets, which are wandering in the heaven apparently, Plato gave a similar but more complex explanation. The model could give a reasonable explanation approximately, but couldn’t explain the planets exceptive motions. They will progress against the background of the fixed stars over a year or two, or even longer, then they will halt suddenly, and go in the other direction for a while, stop again, after that, progress in the normal direction. Facing a series strange exceptions and motions of the planets, Eudoxus(人名,难以翻译,重要的哲学家、科学家) thought regressively(回归,追本溯源). He was a pupil of Pythagorean, and had a close relationship with Plato. About planets, Plato’s model had two regular circular movements for each planet, Eudoxus gave four circular movements for each planet. In this model, the first sphere (环), generate a daily motion; the second generate the motion along the ecliptic(黄道), the other two proce a pattern like the figure 8 laid on its sides(行星出现在黄道正负8度范围内). Besides, Eudoxus had a record of planets’ motion, and made a good use of mathematics, so compared with Plato’s model, his is more sophisticated.
Eudoxus’ model was excellent model for a long time, but there were some inherent difficulties. Because the distance between the earth and each one of five planets that we can see with naked eyes, always changes, it is not difficult to find that all planets’ size are varying apparently. Eudoxus can’t cope with the phenomenon, in his model, the distances between the earth and the planets are constant, that means the size of planets can’t vary. Account for these problems, Ptolemy(托勒密) proced a whole new system which was to last for nearly 1500 years. The system was based on combination of regular circular motions too. He gave up concentric(同心圆) sphere model in favor of a system based on a device, the epicycle(本轮,天文模型的一种). The epicycle is a combination of two regular circular motions, but not around the same center. The center of smaller circle moves around the larger circle. The two circles can proced many complex patterns, because these patterns, Ptolemy was able to explain most problems that beset the concentric sphere model, including the variation of apparent size, the brightness, the velocity(速度) of the planets. Besides the epicycle, Ptolemy made another subtle change, the earth is offset from the center of the sun’s orbit. So the model can account for that seasons have slightly different lengths. Now before the telescope was invented and new phenomena that can’t be found with naked eyes were detected, the model is the best in the ancient times.
After talking about some important Greek cosmological models, we have to mention an exceptive astronomer, Aristarchus(阿里斯塔克斯). He is the first one who have a revolutionary thinking that the earth is orbiting around the sun. But sadly, we don’t know how and why he can be aware this without any idea about gravity and the phenomena which only can be detected with telescope, only we know he is a follower of Aristotle.
❾ 考研英语一阅读会考与天文类的吗
作为英语的重头戏,阅读是大家首先要啃掉的硬骨头,阅读怎么复习?下面分回享2018考研英语阅读正确率低答的五大常见原因!大家一起来学习下:
(一) 题材
内容涉及社会科学、自然科学和人文科学各个领域的知识,其中社会科学所占比重较大,自然科学所占比重不大,人文科学近来有增加的趋势。社会科学常涉及的领域有经济学、心理学、社会学、教育学、传播学等,但政治、军事不涉及。自然科学主要涉及医学、生物学、工程和科学史等。人文科学主要涉及文学评论、语言、杂文和散文等。
(二) 文体在体裁上,
大纲要求能读懂四类文章:议论文、说明文、记叙文和应用文 (如信函、技术说明和产品介绍等)。但出题以议论文和说明文为主。
❿ 找篇关于介绍天文方面的英语文章
介绍流星的:
METEOR (Metric for Evaluation of Translation with Explicit ORdering) is a metric for the evaluation of machine translation output. The metric is based on the harmonic mean of unigram precision and recall, with recall weighted higher than precision. It also has several features that are not found in other metrics, such as stemming and synonymy matching, along with the standard exact word matching. The metric was designed to fix some of the problems found in the more popular BLEU metric, and also proce good correlation with human judgement at the sentence or segment level This differs from the BLEU metric in that BLEU seeks correlation at the corpus level.
Example alignment (a).Results have been presented which give correlation of up to 0.964 with human judgement at the corpus level, compared to BLEU's achievement of 0.817 on the same data set. At the sentence level, the maximum correlation with human judgement achieved was 0.403.[1]
http://www..com/s?ie=gb2312&bs=google&sr=&z=&cl=3&f=3&tn=&wd=%CE%AC%BB%F9%B0%D9%BF%C6&ct=0&oq=%CE%AC&rsp=0