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Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

发表于:2018-11-28 / 阅读(516) / 评论(0) 分类 新概念优美背诵短文50篇

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo

发表于:2018-12-01 / 阅读(215) / 评论(0) 分类 新东方背诵文选

A new study into the hygiene of supermarkets has found that shopping carts are dirtier than the stores bathrooms. Microbiologist Dr Charles Gerba of the University of Arizona conducted research on the handles of 85 carts in four American states. He r

发表于:2018-12-07 / 阅读(201) / 评论(0) 分类 创新英语

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Sometimes a bit of bacteria can be just what the doctor ordered. If you prize yogurt for its active cultures, you know what Im talking about. Now a new s

发表于:2018-12-24 / 阅读(142) / 评论(0) 分类 Scientific American(九)月

They say that who you hang out with says a lot about who you are. Well, the microbes that hang out on your fingers can point to exactly who you are. Because scientists at the University of Colorado in Boulder have been able to identify individuals ba

发表于:2018-12-24 / 阅读(131) / 评论(0) 分类 Scientific American(三)月

Part 1 About Greyhound 灰狗巴士简介 Founded in 191 4, Greyhound Lines, Inc. is the largest provider of intercity bus transportation, serving more than 3,100 destinations with 16,000 daily departures across North America. It has become an American ic

发表于:2019-01-02 / 阅读(114) / 评论(0) 分类 CRI实用英语课堂

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

发表于:2019-01-07 / 阅读(143) / 评论(0) 分类 VOA常速英语2008年(二月)

HealthReport-GutBacteria:WeAreWhatWeEat This is the VOA Special English Health Report. The human digestive system is full of bacteria -- mostly good bacteria. These organisms help break down food so the body can use the nutrients. Scientists are expl

发表于:2019-01-12 / 阅读(166) / 评论(0) 分类 2011年VOA慢速英语(九)月

Experts: Let Produce Dry Out to Avoid Bacteria American researchers say farmers should wait one day after a rain storm or watering their fields to harvest fresh fruits and vegetables. They say gathering the crops at least 24 hours after rainfall incr

发表于:2019-01-12 / 阅读(250) / 评论(0) 分类 2015年VOA慢速英语(七)月

Welcome! The team at Tip Top Trading are hard at work, making plans for the launch and presentation of their latest product: the revolutionary, almost real Imperial Lemon. 欢迎!Tip Top Trading的团队成员们正在努力工作,为了推出展示

发表于:2019-01-14 / 阅读(119) / 评论(0) 分类 职场英文口语

ROBERT SIEGEL, HOST: In a South Dakota courtroom, ABC News will defend a series of stories it reported five years ago in a defamation lawsuit. Jury selection started today. It's a trial that could prove to be a measure of public attitudes toward the

发表于:2019-01-17 / 阅读(103) / 评论(0) 分类 2017年NPR美国国家公共电台6月

In some countries, including France, there is a strong connection between fish and April Fools jokes. It seems the same is true on the pond, where Colin the grumpy Carp, plays a big practical joke on everyone. Read by Natasha. Written by Bertie. Proo

发表于:2019-01-18 / 阅读(207) / 评论(0) 分类 Children’s Stories-儿童故事集

European and World Health Organization scientists say a deadly outbreak of E. coli bacteria that has killed 18 people is a rare and virulent(致命的) strain of the bacteria. The latest victim died Wednesday night in Germany. The United Nations agen

发表于:2019-02-04 / 阅读(131) / 评论(0) 分类 英语新闻

BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Ac

发表于:2019-02-07 / 阅读(114) / 评论(0) 分类 英语新闻

Beautiful. You sound great.Sound great. Thank you.Alright. 太棒了 听起来棒极了 很好听 谢谢 好了 Nick is hosting The Kids' Choice Awards Coming up soon. 尼克不久后要主持儿童选择奖颁奖典礼 Are you prepared to get slimed

发表于:2019-02-15 / 阅读(106) / 评论(0) 分类 艾伦脱口秀

Did you hear? Andy asked. Donna asked, Did I hear what? Andy said, Ground beef contains pink slime. I don't know what pink slime is, but it sounds bad. Donna said, I'll tell you what pink slime is. It's trimmings from the cows. They used to put it in

发表于:2019-02-15 / 阅读(101) / 评论(0) 分类 英文短篇故事(纽约)

When times are good, they exist as one-celled individuals, much like amoebas. 当年景好的时候,它们以单细胞的形式独立存在,很像是变形虫; But when conditions grow tough, they crawl to a central gathering place and become,

发表于:2019-02-17 / 阅读(111) / 评论(0) 分类 万物简史

We now know that there are a lot of microbes living deep within the Earth, many of which have nothing at all to do with the organic world. 我们现在知道了,有大量微生物生活在地球内部的深处,其中许多与普通的有机世界毫

发表于:2019-02-17 / 阅读(99) / 评论(0) 分类 万物简史

If you had any doubts about Victoria Beckham winning at life, take a look at three of her prized golden statues! Actually, that's hubby David Beckham and sons Romeo Beckham, 11, and Cruz Beckham, 9, covered head-to-toe in gold slime at the 2014 Nicke

发表于:2019-02-19 / 阅读(125) / 评论(0) 分类 英语新闻

SCOTT SIMON, HOST: You might want to set aside your cornflakes for a moment now. Ed Yong writes in The Atlantic about a substance he says, quote, looks revolting but is also one of nature's more wondrous substances, unlike anything else that's been c

发表于:2019-03-04 / 阅读(171) / 评论(0) 分类 2019年NPR美国国家公共电台1月
学英语单词
a little too thick
a piss pot
abandon yourself to
abnormal magnetic moment
achiric
adjustable-pitch
aeronaviator
algae culture
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angioembolisation
archegonium
association analysis
atul
bahnsen
Ban Bo
benitas
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binarities
blue-fire
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carriage and wagon works
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centre-court
city limitss
classroom observation techniques
Claude Levi-Strauss
CNUCED
conveyer pipe for material
corneal injury
culture-bound
dark brown soybean
dead front type switchboard
DML
dogfights
don't take any wooden nickels
electrolysis condenser
elliptic restricted problem
eulerian flow
F. S.
First Epistle of Paul the Apostle to the Thessalonians
flos mume
galegine
gayal
gentialutine
goes with you
guglielmi
have no intention of doing
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hematometry
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hence with
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karpose
kick copy
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Morteratsch, Piz
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NINA loan
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owanas
pentaamine
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preceptorially
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reversing valve rod bush
Rhipidocotyle
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smallie
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starter tile
steam jet ejector
substenance
teapot
the Charity Shield
thimble tube composite type
thumbsucking
tophandler
Trikora, Puncak
universal miller
V syndrome
valeo
Xalin