黑云母岩

魔术美文记英语4级词汇 The New Autobiobiography

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发表于:2018-11-30 / 阅读(569) / 评论(0)

24篇魔术美文串记4级词汇

SSS 2008-08-29

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.

发表于:2018-12-02 / 阅读(343) / 评论(0)

Scientific American(八)月

北美小学生英语一年级教材: 第11课 I'm Titch

[全屏观看] 点击右键- 另存为可保存这个Flash影片

发表于:2018-12-12 / 阅读(302) / 评论(0)

北美小学生英语一年级教材（牛津英语教材）

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

发表于:2018-12-26 / 阅读(395) / 评论(0)

蒋健棠听说学英语

英语课程计划-World Hepatitis Day

World Hepatitis Day is observed on May the 19th. It aims to increase awareness worldwide of the diseases hepatitis B and hepatitis C. Its hope is to encourage the prevention and diagnosis of these two diseases, and increase the number of people who r

发表于:2018-12-29 / 阅读(269) / 评论(0)

英语课程学习计划和讲义

新编英语教程第五册unit07_2_mouse_cloning_begins_bio-industri

发表于:2018-12-29 / 阅读(261) / 评论(0)

新编大学英语阅读部分

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

发表于:2019-01-01 / 阅读(261) / 评论(0)

地道美语播客

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

发表于:2019-01-02 / 阅读(368) / 评论(0)

科技之光

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

发表于:2019-01-02 / 阅读(341) / 评论(0)

VOA2003（下）-农业与经济

SSS 2009-08-12

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(271) / 评论(0)

Scientific American(八)月

VOA标准英语2010年-New Audits Cite Lax Oversight of US Co

The U.S. Special Inspector General for Iraq Reconstruction has criticized the State Department for its management of nearly $3 billion in contracts and grants in Iraq. In two reports, auditors cited weak and ineffective State Department oversight of

发表于:2019-01-13 / 阅读(386) / 评论(0)

VOA标准英语2010年(一月)

VOA标准英语2010年-Stomach Cancer on Rise Among Certain Y

Stomach cancer is one of the deadliest diseases, and ranks second among cancers worldwide with at least 800,000 deaths yearly. But in the United States, the number of cases has been declining, except for among one group of Americans. Glenda Reimer, h

发表于:2019-01-13 / 阅读(254) / 评论(0)

VOA标准英语2010年(五)月

VOA标准英语2010年-Fruit Flies Could Unlock Mystery of Al

At Scripps Research Institute in Jupiter, Florida, scientists are working to find clues about how the human brain processes memories. Their laboratory test animal is not a chimp or a dog or a rat animals that we know can remember things it is the com

发表于:2019-01-13 / 阅读(301) / 评论(0)

VOA标准英语2010年(三月)

英语小达人 372 Tit for Tat

Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But

发表于:2019-01-28 / 阅读(240) / 评论(0)

英语小达人

Johns Hopkins Malaria Institute

72 约翰斯·霍普金斯疟疾协会 DATE=7-19-01 TITLE=SCIENCE REPORT - Johns Hopkins Malaria Institute BYLINE=Jill Moss (Start at 01'0

发表于:2019-01-30 / 阅读(322) / 评论(0)

科技之光

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

发表于:2019-01-30 / 阅读(300) / 评论(0)

农业与发展

Offering Substitute　提供代用品

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(356) / 评论(0)

实用英语

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

发表于:2019-02-06 / 阅读(348) / 评论(0)

阅读空间

VOA常速英语2007年-UN Study Finds Nairobi Dumpsite Endangers Child

By Cathy Majtenyi Nairobi, Kenya 06 December 2007 Kenya's capital, Nairobi, is home to one of Africa's largest dumpsites. A recent United Nations study found that nearly half of the children surveyed who live near the dumpsite suffer from serious med

发表于:2019-02-07 / 阅读(399) / 评论(0)

VOA常速英语2007年（十二月）

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

发表于:2019-02-18 / 阅读(274) / 评论(0)

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