魔术美文记英语4级词汇 The New Autobiobiography

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2013年ESL之就医和人际交往 17 Fearing Bioterrorism

Fearing Bioterrorism Natalie: Why are you wearing that gas mask? Anton: Im getting used to it. If we ever have a bioterrorist attack, Ill be ready. Want to try one on? Natalie: No, thanks. If we get involved in biological warfare, I think well have s

数学英语 36 How to Convert Units

by Jason Marshall In the last article, we began discussing how to convert from one system of units to anotherfor example from miles to kilometersand how all of this relates to the multiplicative identity. But we didnt quite have enough time to get to

英语口语大赢家Topic146:换钱Changing Money

泰瑞在中国旅行，想换一些人民币。他来到银行，发现当天澳元对人民币的汇率比昨天低。他手里拿着一千澳元，换还是不换呢？ Listen Read Learn Bank clerk: Good Morning, sir. What can I do for you? Terry: Yes, I'd like to change Australian dollars for RMB. Ban

蒋健棠听说学英语 Chapter16:The wildlife biologist

蒋健棠听说学英语 Chapter16:The wildlife biologist

2014年ESL之日常生活 02 Converting to Another Religion

Converting to Another Religion Debbie: Okay, Im off. Ill be back around eight oclock. Marcelo: Hey, where are you going in such a hurry? Debbie: Im going to my religious education class. Marcelo: Religious education class? Whats that about? Debbie: W

新编英语教程第五册unit07_2_mouse_cloning_begins_bio-industri

新编英语教程第五册unit07_2_mouse_cloning_begins_bio-industri

ESL Podcast 930 – Fearing Bioterrorism

Natalie: Why are you wearing that gas mask? Anton: Im getting used to it. If we ever have a bioterrorist attack, Ill be ready. Want to try one on? Natalie: No, thanks. If we get involved in biological warfare, I think well have some warning. Anton: T

Designer Antibiotics

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04

Biosolids

By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode

2007年VOA标准英语-More Hispanic Americans are Converting to Islam

By Steve Mort Orlando, Florida 09 February 2007 watch Hispanic Muslim report The number of Hispanic Americans converting to Islam is growing rapidly -- particularly in New York, California, Texas and Florida, which have the greatest concentration of

SSS 2010-02-15

Imagine a world where sunlight can be captured to produce electricity anywhere, on any surface. The makers of thin-film flexible solar cells imagine that world too. But a big problem has been the amount of silicon needed to harvest a little sunshine.

万物简史 第149期:基本物质(21)

The nineteenth century held one last great surprise for chemists. It began in 1896 when Henri Becquerel in Paris carelessly left a packet of uranium salts on a wrapped photographic plate in a drawer. When he took theplate out some time later, he was

AGRICULTURE REPORT - Biocontrols, Part 2

AGRICULTURE REPORT - Biocontrols, Part 2 By Mario Ritter Broadcast: Tuesday, April 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biocontrols are the way nature seeks ba

货币英语 19 Convert to a Roth IRA

By Elizabeth Carlassare. Todays topic is what to do if you want to convert to a Roth IRA, but can't. A Roth IRA is a great way to save for retirement if youre eligible to contribute. With a Roth IRA, you contribute after-tax money, but your earnings

俄科学家研制出"不老药"

俄罗斯莫斯科的一位生物能量学教授近日宣布，他已研制出一种能够有效延缓衰老的不老药，并有望于几年内上架销售。这位科学家用40年的时间研制出一种抗氧化剂，能够有效抑制氧分子对人

VOA标准英语2009年-Liberia Converting Old Rubber Trees to Ele

Work begins this month on a new, environmentally-friendly power plant in Liberia that will use old rubber trees to generate electricity. It is part of a plan to make Liberia the world's first sustainable biomass-driven economy. Natural rubber has an

Newly Discovered Biomarker Predicts Cancer Growth

One of the most common questions cancer patients ask their doctors is: has the disease been contained or will it spread. A recent study by U.S. and Chinese researchers may help provide clues. The scientists examined genetic（遗传的,基因的） m

英语听力文摘 English Digest 323、荡秋千的精彩

Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量，包括物体的，微粒的或质点集的运动等。 势能(Potential energy )是位置的函数，例如把一个

【英语时差8，16】荡秋千

Sit on a swing, let someone push you, and away you go. But what happens if the person who pushed you walks away, and you want to swing faster and higher. If you've ever been in the second grade, you know the solution to that. Just start pumping your