太阳科普 第6期

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条，都是微量复杂元素造成的 metals like iron and magnesium. 好比说

VOA慢速英语2013 火星湖可能存在微生物

AS IT IS 2013-12-20 Martian Lake Possibly Supported Microbial Life 火星湖可能存在微生物 From VOA Learning English this is As It Is. Hello. Im Caty Weaver. Climate researchers have found links between recent periods of extreme weather and th

与美国小学生一起学英文第1册 第2期:岩石

Rock 岩石 If you look around you, you can find some rocks very easily. 如果你环顾四周的话，你轻而易举就能发现一些岩石。 Rocks are minerals and they are all from the Earth. 岩石是矿物质，全都来自于地球。 What c

VOA慢速英语2014 Rare Minerals May Be in North Korea 稀有矿物质可能在朝鲜发现

Rare Minerals May Be in North Korea 稀有矿物质可能在朝鲜发现 Hello and welcome back. Im Jim Tedder in Washington. Today we are going to talk about something that is worth a lot of money, and it is buried in the ground. Were not exactly go

VOA标准英语2009-Conflict Minerals Under Study in US Congress

Bipartisan legislation on so called conflict minerals was recently introduced in the US House of Representatives. The bill is designed to create transparency and allow consumers to make informed choices when they purchase electronic devices like cel

商务口语：介绍公司在本领域的重要地位

第一句： We have been importing and exporting all kinds of metals and minerals for thirty years. 我们经营各种金属和矿石的进出口业务已经有30年了。 A: We have been importing and exporting all kinds of metals and minerals for

托福听力短文 I-13-2

(woman) I'd like to begin by thanking Dr. Kane for inviting me to be here today. Although I'm not a geologist, I have been collecting minerals for years. My collection is rally diverse because I've traveled all over the world to find them. Today I'v

4.1 Stone and the flower 石头与花儿

You have hardened said the flower,bending her petals downward toward the half stone at her roots.These rains should have softened you.made you more fertile and receptive to the seeds of minerals;but no. You have accumulated minerals，become more sil

CNN 2012-03-16

Wanted to slice out little time,we wish everyone a happy pie day on this March 14th.413 Ok.let's go ahead to get today's headlines. Two primaries two caucuses,110 delegates,that's what was the stake yesterday in the race for the Republican presidenti

草莓的作用

Dieting isnt always easy, particularly if you have a sweet tooth. But by adding strawberries to your diet, you can enjoy a range of guilt-free dishes, drinks and snacks any time of day. Best of all, strawberries are low in calories, high in fiber, fa

肯尼亚孕妇流行吃石头 称其补钙利器

AS IT IS 2015-07-19 Pregnant Women in Kenya Craving for... Stones 肯尼亚孕妇流行吃石头 称其补钙利器 Some pregnant women can develop a strong, even urgent desire for something tasty to eat. This craving is not at all like normal hunger

7种实用食品缓解压力显奇效

Eating when stressed can be a bad habit when the food of choice is a candy bar or bag of chips. Try these healthy foods that are actually proven to lower stress levels. 当有压力的时候如果选择吃糖果或者薯条对健康是有坏处的。试

英语听力：自然百科 为什么海水是咸的？

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

在购物清单上加上这些健康食品吧

Avocado 牛油果 In addition to its flavorful taste and rich and creamy texture, this fruit (yep, it is indeed a fruit!) is loaded with antioxidants and can help you lower your bad cholesterol. Whether you eat it in a salad, spread on toast, or even

U.S. study ranks walnuts as most healthy nuts

LOS ANGELES, March 27 (Xinhua) -- Walnuts have a combination(综合) of more healthful antioxidants and higher quality antioxidants than any other nut, U.S. researchers have found. Study findings were presented on Sunday at the 241st National Meeting

经济学人170:地质还是地理理论?

Mining 采矿业 Geology or geography? 地质还是地理理论? Miners should spread their risks across countries as well as minerals 矿业公司应用多国开采和多矿产开发以分散风险 THE past half-dozen years have been kind to miners.

有效的睡眠疗法

Sleep well, sleep better If sleep has plunged to the bottom of your to-do list, you're not alone. Although the National Sleep Foundation recommends getting seven to nine hours of sleep a night, the average American logs only six hours and 40 minutes.

乔布斯 第229期:靠自己(8)

Jobs's passion for perfection was out of control. 乔布斯对于完美的热情已然失控。 When he noticed a tiny line in the chassis caused by the molds, 当他注意到模具在机箱底盘上留下的微小细纹时， something that any othe

多吃芹菜 健康好处多多

1. It is very hydrating. 盈润保湿。 Celery is high in water content (95% water) and electrolytes, which are vital for proper hydration and cellular functions. For a super re-hydrating drink (e.g. after a long flight or after having food poisonin

减肥瘦身英语口语话题 第9期:饮食均衡

Unit 9 Eat a well-balanced diet. Unit 9 饮食均衡 Remember having to memorize the four food groups when you were a kid and wondering if you were really going to need this information when you grew up? 记得你小时候要死背，而当时却怀疑