时空学说

NO BOUNDARIES Imagine this: you are twenty-one years old and a promising graduate student at one of the top universities in the world. One day, your doctor tells you that you have an incurable disease and may not have more than twelve months to live

发表于:2018-12-04 / 阅读(76) / 评论(0) 分类 人教高中英语高二

[00:00.00]Getting to Know the World Outside the Camp [00:03.79]Nowadays,college students in growing numbers are seen waiting on tables ,clerking in stores,advertising in streets,teaching in families and doing whatever work they can fin [00:17.74]Why

发表于:2018-12-30 / 阅读(77) / 评论(0) 分类 英语六级听力练习集锦

Black Holes What is a black hole? Well, it's difficult to answer this question, since the terms we would normally use to describe a scientific phenomenon are inadequate here. Astronomers and scientist

发表于:2018-12-31 / 阅读(145) / 评论(0) 分类 有声英文阅读

What is a black hole? Well, it's difficult to answer this question, since the terms we would normally use to describe a scientific phenomenon are inadequate here. Astronomers and scientists think that a black hole is a region of space (not a thing) i

发表于:2019-01-02 / 阅读(90) / 评论(0) 分类 双语有声阅读

By Jessica Berman Washington 03 August 2007 There's a period in the development of toddlers when they seem to learn a new word every day. There are different theories about why young children undergo what experts call a word spurt. But one psychologi

发表于:2019-01-07 / 阅读(134) / 评论(0) 分类 2007年VOA标准英语(八月)

It was supposed to be the greatest science experiment ever, and it's certainly the most expensive. The large hadron collider designed to recreate the Big Bang theory with colliding particles has so far cost nearly 10 billion dollars and counting. Sci

发表于:2019-01-07 / 阅读(113) / 评论(0) 分类 cnn2009年(十一)月

新gre作文写作考察考生完成题目过程中是否能够融合批判性思维和分析写作能力,以下是gre考试写作部分issue的优秀写作实例,通过这些优秀范文或是习作,考生可以借鉴里面的短语、句子或思

发表于:2019-01-08 / 阅读(73) / 评论(0) 分类 GRE作文

Albert Einstein was a German-born physicist, although most people probably know him as the most intelligent person who ever lived. His name has become part of many languages when we want to say someone is a genius, as in the phrase, Shes a real Einst

发表于:2019-01-11 / 阅读(99) / 评论(0) 分类 世界名人简介

Do You Think You Can? 你认为你可以吗? From VOA Learning English, this is the Health Lifestyle report. Willpower is a mysterious force that helps us to control our actions and achieve our goals. We also call willpower determination, drive and

发表于:2019-01-12 / 阅读(189) / 评论(0) 分类 2016年VOA慢速英语(二)月

Despite Paralysis, Hawking's Mind Soars When he turned 70 in 2012, Hawking was honored with a special exhibit at Londons Science Museum. The tribute gave visitors an inside look at the life and work of one of the world's greatest minds. We have some

发表于:2019-01-13 / 阅读(114) / 评论(0) 分类 VOA标准英语2013年(一月)

Pareto's Principle - The 80-20 Rule How the 80/20 rule can help you be more effective. In 1906, Italian economist Vilfredo Pareto created a mathematical formula to describe the unequal distribution of

发表于:2019-01-21 / 阅读(150) / 评论(0) 分类 实用英语

JUDY WOODRUFF: But, first, this week marks the 100th anniversary of the publication of Albert Einstein's greatest work, a series of papers laying out the general theory of relativity. Gwen has a look at how it changed our understanding of the cosmos

发表于:2019-01-27 / 阅读(84) / 评论(0) 分类 PBS访谈教育系列

EXPLORATIONS – Albert Einstein By Marilyn Christiano Broadcast: Wednesday, February 23, 2005 VOICE ONE: This is Steve Ember. VOICE TWO: And this is Sarah Long with the VOA Special English program, E

发表于:2019-01-28 / 阅读(115) / 评论(0) 分类 Explorations

The Big Bang theory isn't about the bang itself but about what happened after the bang. Not long after, mind you. By doing a lot of math and watching carefully what goes on in particle accelerators, scientists believe they can look back to 10-43secon

发表于:2019-01-29 / 阅读(100) / 评论(0) 分类 万物简史

Shortly after Copernicus, in the 1580s, an Italian friar, Giordano Bruno, 哥白尼死后不久,在十六世纪80年代,意大利修道士焦尔达诺布鲁诺提出, suggested the stars were suns that likely had their own planets and that the

发表于:2019-02-13 / 阅读(116) / 评论(0) 分类 TED演讲教育篇

Voice 1 Welcome to Spotlight. Im Rena Dam. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Imagine a family with three children.

发表于:2019-02-14 / 阅读(126) / 评论(0) 分类 环球英语 Spotlight

Carol Ann Susi, actress on 'The Big Bang Theory,' dies at 62. 《生活大爆炸》霍华德妈妈扮演者去世。 Actress Carol Ann Susi, best known for her recurring role as Mrs. Wolowitz on CBS The Big Bang Theory, has died, her agent, Pam Ellis

发表于:2019-02-16 / 阅读(80) / 评论(0) 分类 英语新闻

【原文】 Black HolesWhat is a black hole? Well, it's difficult to answer this question, since the terms we would normally use to describe a scientific phenomenon are inadequate here. Astronomers and scientists think that a black hole is a region

发表于:2019-02-16 / 阅读(70) / 评论(0) 分类 英语听力广播—Listening

There was also the problem, demonstrated by Rutherford and Soddy early in the century, that Earthly elements hold huge reserves of heatmuch too much to allow for the sort of cooling and shrinking Suess suggested. And anyway, if Suess's theory was cor

发表于:2019-02-25 / 阅读(111) / 评论(0) 分类 万物简史

Useful tips: (suitable for all questions)l Make it NATURAL, pauses, such as well, urn, and you know, are advisable, but don't do it too much。 l CORRECT your mistakes as soon as you find out, for example, ... I really like standing in, I mean, ON th

发表于:2019-03-12 / 阅读(167) / 评论(0) 分类 托福英语
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