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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(342) / 评论(0) 分类 Scientific American(八)月

This is the VOA Special English Health Report. Every few years, two groups do a study of how many Americans wash their hands after using the toilet. These groups are the American Society for Microbiology and the American Cleaning Institute, formerly

发表于:2018-12-07 / 阅读(241) / 评论(0) 分类 2010年VOA慢速英语(九)月

[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(301) / 评论(0) 分类 北美小学生英语一年级教材(牛津英语教材)

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(266) / 评论(0) 分类 英语课程学习计划和讲义

今天我们要学的词是tit-for-tat. Tit-for-tat意思是针锋相对,以牙还牙。Islamist militants' attacks and tit-for-tat violence between rival ethnic groups have cast doubt on Mali's upcoming elections. 伊斯兰国激进分子的袭击和

发表于:2018-12-30 / 阅读(232) / 评论(0) 分类 英语单词荟萃

The Tertiary Education Commission (the TEC) announced the funding for polytechs and universities for the next 3 years. The TEC is the government organisation responsible for tertiary institutions like polytechs and universities so this is government

发表于:2018-12-31 / 阅读(301) / 评论(0) 分类 新西兰英语

By Ravi Khanna New York 04 April 2007 New York City is home to the famous Lee Strasberg Theater and film institute, which is known for training actors in what it calls method acting. Urdu TV' s Ravi Khanna went inside the institute to find out more f

发表于:2019-01-06 / 阅读(299) / 评论(0) 分类 2007年VOA标准英语(四月)

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(268) / 评论(0) 分类 Scientific American(八)月

PanamaResearchInstituteDedicatedtoEarth'sEcosystem Every year, about 1,000 scientists from around the world visit the Smithsonian Tropical Research Institute in Panama. The Institute is one of the oldest and largest facilities of its kind in the worl

发表于:2019-01-08 / 阅读(327) / 评论(0) 分类 VOA标准英语2011年(九月)

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(385) / 评论(0) 分类 VOA标准英语2010年(一月)

The US government is considering, for the first time, the approval of a genetically-modified animal for human consumption. The animal being considered is salmon, but approval could open the door for other animals as well. Those who favor the move say

发表于:2019-01-13 / 阅读(323) / 评论(0) 分类 VOA标准英语2010年(七)月

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(253) / 评论(0) 分类 VOA标准英语2010年(五)月

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(300) / 评论(0) 分类 VOA标准英语2010年(三月)

This is the VOA Special English Development Report. Health experts predict that soon, more people will die from cancer than from AIDS, tuberculosis and malaria combined. They expect that by two thousand ten, cancer will become the world's leading cau

发表于:2019-01-20 / 阅读(237) / 评论(0) 分类 2010年慢速英语(三)月

Glaucoma is the leading cause of irreversible loss of vision worldwide and now doctors believe the devastating disease begins in the brain and not in the eye as has long been thought. Dr. David Calkins, director of research at the Vanderbilt Eye Inst

发表于:2019-01-20 / 阅读(259) / 评论(0) 分类 VOA标准英语2010年(三月)

Government-funded researchers hope to commercialize an idea called a mobile harbor. The developers aim to expand global shipping options while reining in carbon emissions. Kurt Achin | Seoul 04 January 2010 A computer simulation demonstrates how smal

发表于:2019-01-20 / 阅读(242) / 评论(0) 分类 VOA标准英语2010年(一月)

Your boss has a bigger vocabulary than you have. That's one good reason why he's your boss. This discovery has been made in the word laboratories of the world. Not by theoretical English professors, but by practical, hard-headed scholars who have bee

发表于:2019-01-21 / 阅读(259) / 评论(0) 分类 阅读空间

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(239) / 评论(0) 分类 英语小达人

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(321) / 评论(0) 分类 科技之光

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) 分类 实用英语
学英语单词
.cb
active carbon fiber
adjusting drilling machine
Airy spot
alifera
anterior atlantooccipital membrane
assumingly
astrochemistry
automatic exposure
basidiograph
be without equal
benign familial chronic pemphigus
bill for
bunnell's test
burglarproof
CAD (cash against documents)
calcium-Catapleiite
Caryopteris odorata
chelate formation
code pendant
colonosigmoidoscope
coral snake
coupling sugar
cyclical theory of regeneration
dark picture areas
digeneous
diphenylisodecyl phosphite
Evohaler
faceless
family coryphaenidaes
fastening bolt
flat bottom ampul
gas voltameter
genus Rhodanthe
Gulf of Suez
gyracone crusher
high-temperature dyeing
Ileopexy
Immuno-C
inequigranular fabric
insemination crate
involute-gear-cutter
jelin
late orogenic phase
Lawr.
lettres de provision
macrochylomicron
masterminders
minimum widith
multicomponent glass optical fiber
multiple-point recording potentiometer
neurohumour
nods off
noise free
nondestructing readout
Nothnagel's bodies
o'kelly
on easy term
optional table
ourhouse
over-mountain
pansy orchid
planting soil
polytelite
Pretzier
proserv
put the clock back
roaring twenties
saddle wear of rail end
sady
sakin
Schlatter-Osgood disease
sea-borne only
self-recording mechanism
ship's clerk
snippersnapper
SNW (spot network)
spherical lapping
staglike
stand there
stock pigeons
suberogorgin
sugarbirds
superarc
synchiropus altivelis
syncytial theory
tactical missile (tm)
Thyrocricoidectomy
torsion
transition rays
transverse discontinuity
tricho-dento-osseous(tdo) syndrome
Trumbull, Jonathan
tryacle
underwater apron
upward-fining sequence
vapour pressure constant
velocity coefficient
vodou
vomitory
waste motion