单词：Henbury Craters
单词：Henbury Craters 相关文章
What makes science really fun is when you get to do things yourself, so today were going to be making moon craters. 科学真正变得有趣的时刻就是当你亲自实践的时候，那么今天，让我们来一起制作月球陨石坑吧！ They
初学者听力文摘精选
[00:00.62]UNIT 3 [00:07.67]Expansion 3 [00:12.97]Exercise 2 [00:15.15]My name is Kevin. [00:17.00]I am from New Zealand. [00:19.24]Here is some information about my country. [00:23.44]New Zealand is in the South Pacific Ocean [00:27.25]about 1,000 mi
北师大版初中英语八年级上
It used to be that finding even one new planet was enough to make an astronomer's career. 曾经即便是找到一颗新卫星都足以成就一名天文学家的事业。 Uranus was discovered in 1781 by William Herschel, who these days has, among o
经济学人科技系列
Todd: So, Phil, I'm thinking about going to China and I'm really into nature. I love wildlife. Can you recommend anything to me? Phil: The best thing I did in China was go through Zhang Jia Jie National Park. That's Hunan Province, and if you like na
英语访谈对话
1983年４月７日，美国＂挑战者＂号航天飞机在太空飞行期间，两名航天员在太空自由自在地飘飞行走了3个多小时．这是人类首次不系绳索自由地在太空行走． 航天员为何能在太空行走呢？原
60秒科学
Twelve men have walked on the moon. And now you can, too. Virtually, that is. Because planetary researchers are enlisting everyday citizens in scientific exploration of the surface of the moon. At the Web site moonzoo.org, you can check out new high-
Scientific American(五)月
中国登月引发月球开发争论 LONDON Last month, China successfully landed an unmanned probe on the Moon. The mission renewed a debate about the potential exploitation of the Moons resources and who exactly owns the Earths only natural satelli
英语新闻
Crater 火山口 A crater is a big hole in the ground. 火山口就是地面上的大洞。 Volcanic activity can make craters. 火山活动会形成火山口。 After a volcano erupts, we see a huge hole on the top of the volcano. 火山喷发后，火
与美国小学生一起学英文第7册
李华和Larry在公园散步。最近全球性的经济衰退，让Larry忧心忡忡。今天我们要学两个常用语： do-or-die和 to crater. LL: Well, Li Hua, I'm glad to hear that you are enjoying your job. But I can't help worrying about th
美国之音《流行美语》
I want to talk about 4.6 billion years of history in 18 minutes. That's 300 million years per minute. Let's start with the first photograph NASA obtained of planet Mars. This is fly-by, Mariner IV. It was taken in 1965. When this picture appeared, th
英语演讲
The U.S. space agency(代理中介) has released the first ever image taken of the surface of Mercury from a spacecraft orbiting the planet. The black and white image, posted on the NASA website Tuesday, shows a surface pocked with craters of varying
英语新闻
The U.S. space probe MESSENGER is poised to enter orbit around Mercury（水银） early Friday, Universal time, capping a nearly seven-year journey to the solar systems innermost planet. Scientists with the U.S. space agency, NASA, hope the orbiting
英语新闻
US satellite observations have produced the first strong evidence for water flowing on Mars. 美国卫星观测找到了火星表面存在液态水的首批强有力证据。 The water is a brine saturated in salts such as perchlorates. As it seeps d
英语新闻
在托福阅读的课堂上，经常有学生对繁杂的学术词汇头疼不已。碰到这类词汇，会大大拖慢阅读速度，影响整体的正确率。托福阅读中，所有的单词可以被归为两类：一般功能词汇和学术词汇
托福英语
One fragment, known as Nucleus G, struck with the force of about six million megatonsseventy-five times more than all the nuclear weaponry in existence. 有个名叫核G的碎块，其撞击威力高达6亿吨级──相当于现有核武器的总威力
万物简史
The few craters that remained evident on Earth (most had been eroded away) were generally attributed to other causes or treated as fluky rarities. 一般来说，地球上仅有的几个明显的坑(大多数已经被侵蚀干净)要么被归于别的原
万物简史
The story begins in the early 1950s when a bright young geologist named Eugene Shoemaker paid a visit to Meteor Crater in Arizona. 故事始于20世纪50年代之初。当时，有一位名叫尤金苏梅克的年轻有为的地质学家对亚利桑那
万物简史
And the answer that occurred to me first, 我首先想到的是 was it looked like another moon peeking out behind lo. 它看起来像是从木卫一后方露出来的另一个卫星 But when she looked closer she realised it 但仔仔观察后她才发
神秘的月球
As the moon pulls away it will put an end 随着月球日渐远离 to one of nature's most glorious spectacles; 自然界中最壮丽的奇景也将画下句点 a total solar eclipse. 那就是日全食 The moon is 400 times smaller than the sun. 月球
神秘的月球
什么是学术词汇 在托福阅读的课堂上，经常有学生对繁杂的学术词汇头疼不已。碰到这类词汇，会大大拖慢阅读速度，影响整体的正确率。托福阅读中，所有的单词可以被归为两类：一般功能
托福英语