角状突起硅藻属

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(478) / 评论(0) 分类 新概念优美背诵短文50篇

> I’ve been working on the railroad, all the live-long day. I’ve been working on the railroad, just to pass the time away. Can’t you hear the whistle blowing? Rise up so early in the mom. Can’t you hear the captain shouting, “Dinah, blow you

发表于:2018-11-29 / 阅读(223) / 评论(0) 分类 迪斯尼儿歌第一集

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(185) / 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(174) / 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(116) / 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(99) / 评论(0) 分类 Scientific American(三)月

It was my dream to learn the clarinet(黑管). There seemed to be no hope, since I didn't know where to go to learn the clarinet. While I was walking on the street today, there came a person dispensing the flyers(发传单) about the clarinet cla

发表于:2019-01-02 / 阅读(84) / 评论(0) 分类 不用背句型学英语

This is the VOA Special English Health Report. Tuberculosis killed one million three hundred thousand people around the world in two thousand seven. In addition, almost half a million people who were infected with tuberculosis and with H.I.V. also di

发表于:2019-01-02 / 阅读(86) / 评论(0) 分类 2010年慢速英语(三)月

听音乐学英语 Ive been working on the railroad我一直在铁路上工作 Ive been working on the railroad, all the live-long day. Ive been working on the railroad, just to pass the time away. Cant you hear the whistle blowing? Rise up so early

发表于:2019-01-07 / 阅读(122) / 评论(0) 分类 听歌学英语

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(115) / 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(137) / 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(209) / 评论(0) 分类 2015年VOA慢速英语(七)月

E coli: Good Bacteria Gone Bad As a major outbreak of a highly toxic strain of E. coli bacteria continues to sicken residents of Europe, medical experts are racing to find the source. E. coli doesn't usually cause any trouble, says University of Minn

发表于:2019-01-14 / 阅读(141) / 评论(0) 分类 VOA标准英语2011年(六月)

Report: Superfood for Babies A new report says more than 800,000 babies lives could be saved every year, if all women began breastfeeding within the first hour of giving birth. Save the Children calls breastfeeding one of the best ways to prevent mal

发表于:2019-01-14 / 阅读(105) / 评论(0) 分类 VOA标准英语2013年(二月)

Artist/Musician Invents Easy-to-Play Instrument He designed it that way to encourage everyone, and not just musicians, to play music. People are capable of playing a musical instrument, but if you play an instrument and get frustrated with it early e

发表于:2019-01-14 / 阅读(109) / 评论(0) 分类 VOA标准英语2013年(五月)

Janet Jackson的新专辑登上了美国流行专辑榜榜首位置,这是她7年的第一个冠军,但唱片的销量却折射出音乐界总体的滑坡。 《Discipline》是杰克逊音乐生涯中第6张冠军专辑,截止到3月2日,共售出18.1075万张。而她此前的两张专辑虽然只取得亚军,但销量相当可观。 Artist

发表于:2019-02-03 / 阅读(173) / 评论(0) 分类 音乐咖啡厅

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(111) / 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(90) / 评论(0) 分类 英语新闻

48 Bacteria 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 bac

发表于:2019-02-17 / 阅读(106) / 评论(0) 分类 双语有声阅读

作为一个不在意是否成为明星的人,Blake Shelton 在过去的几年中确实闯出了名头。 Now i love country music And i guess i always will But these days, when i turn on the radio It's just not the same thrill I like a song that g

发表于:2019-02-18 / 阅读(89) / 评论(0) 分类 美国乡村音乐
学英语单词
abrasive damage
Allai
ar rayn
armoured reconnaissance vehicle (arv)
assign network address
back axle
bartholdis
bow the knee to
bubbleheads
c.c.c
cauldron
cock-tread
cold-rolling practice
come to the wrong shop
compellingly
compose music
conservation-biology
consistent matrix
corner cube prism
dbe horizontal seismic force
deuterated manganese bath
dosantos
dustpan suction dredger
East Stoke
Exonians
extracorporeal shock wave lithotriptor
fibre rotator
flow elasticity
flue gas boiler
food-distribution
George Bryan Brummell
GGTI-286
grass oil
guidance counselor
guide wheel shaft bush
Halco
hand forging
Heldenlieder
hirayama
hybrid scalability
hyperactivism
hyperovals
hypochromatosis
iodometric titration
iterative array model
karyopyknotic index
kgr
konghuas
lake itch
lean on a broken reed
Ligamentum gastrosplenicum
mangement
Metopagy
miscopying
Montfortian
mudar
multiphase system
multiresource
neutron diffusion
New Bern
nitrosations
normal form pushdown automaton
northern flying squirrels
Ochtmersleben
old-car
over size shoes
oyly
oysters Rockefeller
petzite
photoionized
pilea involucratas
Playón
plus pressure process
poeticness
potential entrant
Prairie City
press(ed) ham
productivity factor
progresso
protoecium
Prudhoe
psychogenetically
Quercus wizlizenii
reaction threshold
recollate
resist to
roll film
shannonite (monticellite)
shipping traffic
silk scarf
somatodidymus
spiralium
striae malleolaris
tadpole (pl. taeniae) (taenia )
Tail-tree
temporoparietal
tributoxyethyl phosphate
ts (toll swithc)
turbinectomies
unmilitaristic
vuecelencia
waitzkin