磁极迁移

Women's Pole Vault Provides Stirring Drama at Olympics

By Parke Brewer The women's pole vault provided one of the stirring dramas of the 2004 Olympic track and field competition. Until the mid 1990s, women's pole vault was not taken very seriously, mainly

发表于:2018-12-12 / 阅读(162) / 评论(0)

VOA2004（下）--雅典奥运

SSS 2008-08-26

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(218) / 评论(0)

Scientific American(八)月

SSS 2011-02-24

If you splashed down in the Atlantic, you'd flounder on which way to swim. But a hatchling loggerhead turtle would know just where to paddleby reading the Earth's magnetic field. Scientists knew turtles can pinpoint latitude this way, because the fie

发表于:2018-12-24 / 阅读(172) / 评论(0)

Scientific American(二)月

第74期: kneel, lap, magnetic, nasty, zero

说一口流利的英语，从简单的单词开始。听听，读读，背背，今天你的词汇量又增加了5个。单词/词义中英例句单词听读 kneel [ ni:l ] She knelt to pray. v. 跪

发表于:2018-12-30 / 阅读(277) / 评论(0)

每日攻克5词

加州语文教材 G5 V5 North Pole, South Pole 10

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发表于:2019-01-08 / 阅读(286) / 评论(0)

加州语文教材California Treasures G5

英语听力：自然百科地球力场 Earth's Force Field—10

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

发表于:2019-01-22 / 阅读(201) / 评论(0)

自然百科2011年

英语听力：2012-01-27 从南极到北极 From Pole To Pole—5

They are constantly on the move. New-born calves have to be up and running the day they are born. But the vast herds do not travel alone. Wolves. Packs of them, eight to ten strong, shadow the migration. And they are hungry. Its the newly born calves

发表于:2019-01-23 / 阅读(178) / 评论(0)

探索与发现2012年

英语听力：2012-01-25 从南极到北极 From Pole To Pole—4

Day 10. And the mother has let her cubs a mile from the den. Its time to put them to the test. Theyve grown enormously in confidence, but they dont have their mothers sense of urgency. At last it seems that they are ready for their journey. And they

发表于:2019-01-23 / 阅读(160) / 评论(0)

探索与发现2012年

Magnetic Bubbles Detected at Edge of Solar System

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field

发表于:2019-02-06 / 阅读(210) / 评论(0)

英语新闻

加州语文教材 G5 V5 North Pole, South Pole 01

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发表于:2019-02-09 / 阅读(303) / 评论(0)

加州语文教材California Treasures G5

加州语文教材 G5 V5 North Pole, South Pole 02

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发表于:2019-02-09 / 阅读(250) / 评论(0)

加州语文教材California Treasures G5

加州语文教材 G5 V5 North Pole, South Pole 03

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发表于:2019-02-09 / 阅读(282) / 评论(0)

加州语文教材California Treasures G5

加州语文教材 G5 V5 North Pole, South Pole 04

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发表于:2019-02-09 / 阅读(312) / 评论(0)

加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(312) / 评论(0)

加州语文教材California Treasures G5

加州语文教材 G5 V5 North Pole, South Pole 06

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发表于:2019-02-09 / 阅读(275) / 评论(0)

加州语文教材California Treasures G5

加州语文教材 G5 V5 North Pole, South Pole 07

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发表于:2019-02-09 / 阅读(318) / 评论(0)

加州语文教材California Treasures G5

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发表于:2019-02-09 / 阅读(296) / 评论(0)

加州语文教材California Treasures G5

2012年英语六级阅读:科学证实人有第六感

It has long been known as ESP, Spider Sense, or the ability to see things before they happen. 一直以来，第六感也被称为超感知觉、蜘蛛感应，也就是预知未来事物的能力。 But now scientists have proved that human really d

发表于:2019-02-09 / 阅读(181) / 评论(0)

大学四六级阅读

【英语时差8,16】南北两极-下

By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That tells us which direction was magnetic north tens of thousands of years ago. Surprisingly, its not alw

发表于:2019-02-23 / 阅读(184) / 评论(0)

英语时差8，16

VOA慢速英语2019--磁极的移动速度比科学家预想的快

Magnetic North Pole Moving Faster Than Scientists Expected Earths north magnetic pole is moving, researchers say. It has moved so much, so quickly that a group of scientists hurried to change a model that helps guide shipping, airplanes and submarine

发表于:2019-03-12 / 阅读(366) / 评论(0)

2019年VOA慢速英语(二)月

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broad beam attenuation

broods

Cepol

channe-noise factor