酸性蛋白

This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute? The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any

发表于:2018-12-24 / 阅读(160) / 评论(0) 分类 Scientific American(二)月

Hungry Lasagna So you made lasagna last night, and it was delicious. You saved the leftovers by wrapping aluminum foil over the top of the pan, and putting it in the fridge. When you get hungry today, you go to look for that lasagna, but it looks lik

发表于:2018-12-31 / 阅读(109) / 评论(0) 分类 英语听力文摘 English Digest

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow

发表于:2019-01-02 / 阅读(108) / 评论(0) 分类 60秒科学

Study: Protein in Mother's Milk May Prevent HIV Transmission to Infants研究发现母乳中蛋白质能预防艾滋病毒传播 From VOA Learning English, this is the Health Report. 这里是美国之音慢速英语健康报道。 Hundreds of thousa

发表于:2019-01-02 / 阅读(132) / 评论(0) 分类 2013年VOA慢速英语(十一)月

More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the growth of corals. And it turns out acidic seawater also makes clownfish and damselfish suicidally bold and reckless, accor

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(194) / 评论(0) 分类 Scientific American(四)月

This is Scientific American 60 second Science, I am Sophie Bushwick, got a minute~ Theyre called hydogels: Jell-O-like materials made of networks of long-chain molecules in water. And theyre as flexible as living tissue. But hydrogels could not recov

发表于:2019-01-08 / 阅读(177) / 评论(0) 分类 Scientific American(三)月

Almost all cells need iron to grow. Now, researchers have identified a link between the body's system for regulating iron and breast cancer. The discovery could help doctors predict the course of breast cancer disease and even help them decide the mo

发表于:2019-01-13 / 阅读(271) / 评论(0) 分类 VOA标准英语2010年(八)月

DNA analysis is a staple of crime scenesand crime shows, like HBO's The Night of or the old standby, CSI: We just need to get this to the DNA lab, confirm it's the victim's blood. And then, case closed. And it's not just for crime: DNA sequencing als

发表于:2019-01-20 / 阅读(170) / 评论(0) 分类 2016年Scientific American(九)月

如果你爱喝葡萄酒或经常遇到要喝葡萄酒的场合,学几句高大上的品酒英语尤其重要。 品葡萄酒本节课的重点词汇: 1) wine tasting 葡萄酒品酒会2) tasting flight 品酒序列3) Cabernet Sauvignon 赤霞珠4)

发表于:2019-01-22 / 阅读(140) / 评论(0) 分类 美国文化脱口秀

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(140) / 评论(0) 分类 自然百科2009年

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(227) / 评论(0) 分类 60秒科学

SCIENCE REPORT – January 23, 2002: Aging Protein By Jerilyn Watson This is the VOA Special English Science Report. A new study suggests that a protein that protects animals from cancer early in life

发表于:2019-01-30 / 阅读(189) / 评论(0) 分类 科技之光

HEALTH REPORT-Heart Disease and C-Reactive Protein By Cynthia Kirk Broadcast: Wednesday, January 19, 2005 I'm Gwen Outen with the VOA Special English Health Report. American researchers have found evi

发表于:2019-01-30 / 阅读(187) / 评论(0) 分类 健康与经济

C-reactive protein is an indication of inflammation in the body, and, at high levels, is considered an early sign of future heart disease. It's a risk factor in a similar way that elevated cholesterol is a risk factor for heart disease, says Asheley

发表于:2019-01-31 / 阅读(150) / 评论(0) 分类 VOA标准英语2010年(三月)

Low-salt,low-protein diet can prevent kidney stonesA diet low in salt and meat can dramatically reduce the risk of kidney stones,according to an Italian study that could spell the end for the low-calcium diet that doctors have been recommen

发表于:2019-01-31 / 阅读(151) / 评论(0) 分类 阅读空间

地球村时代,英语和中文也全球化了。爱吃零食的你怎能不会看包装袋的英文呢?小心哦,不要一不留神,营养没跟上,脂肪增加不少了哟。健康又美味,包装英语跟我学! 国外食品的包装上,

发表于:2019-02-01 / 阅读(207) / 评论(0) 分类 实用英语

零食包装袋上完整的产品成份(ingredients) Nutrition Facts 营养明细 Serving Size 5 pieces (55 g) 每份五片(55克) Servings Per Container About 5 每包约5份 Amount Per Serving 每份含量 Calories 150 Fat Cal.50 % 热量 1

发表于:2019-02-01 / 阅读(191) / 评论(0) 分类 实用英语

Don comes up with another entrepreneurial venture, but Yael straightens him out just in time. [Thunder] Y: What are you doing outside, Don? It's about to rain. D: I'm setting up bottles. Y: I can see that. But why? D: For my new business venture: bot

发表于:2019-03-06 / 阅读(203) / 评论(0) 分类 英语时差8,16

Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as

发表于:2019-03-09 / 阅读(336) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
134
achtaragdite
active content
allyl methyl ether
ammophoska
armoured motor
articulates
available hydropower resources
backward moving average
bardhan
bottom loading pressure
butyful
capacity for labor
casuitically
cataplexis
closed center hydrostatic power steering system
colligable
compressive nappe
convection depth
crooked-bow boat
Cultrinae
cuppola
CY copy
daisy world model
dirty grease
dried plasma
early after-depolarization
educationize
electric glarimeter
eligibility
emulation terminal system
female dovetail
forefatherly
frame pulse pattern
frut-
gantner
giving her a hand
helve ring
hemadynamometry
hensby
heterogone
Hottentot's fig
hydrometer aerometer
imitation milk products
ionic surface active agent
isodoublet
job trailer
Kashiwazaki-Kariwa
Katiola, Dép.de
l.s.a.t
Lentiira
lesser scaup duck
Lffler's blood serum
light spot scanning
linear sound
magnetic line of force
modulator panel
moo cow
oaktag
office of destination
order Aepyorniformes
overtalked
palai
pass-out
performance stock
phonometric
photo-conductive cell
pilary
platinum needle
plough sth into sth
Purple Springs
release on bail
reversed least square-derivative spectrophotometry
right-hand polarization
riskier
Rosellinia platani
rRNA(guanine-N1)-methyltransferase
salemanship
Salvia hayatae
Schisandra grandiflora
sertatus
singular attractor
social education
sorting out
souvenir picture
splirt
SRCN
strong-boxes
Surt
tapped us
televising
thermodesorption
troop carrier aircraft
underdriving
uneymable
venerators
vestige of capitalism
vinbarbitone
welded fissure
whitcher
Wilson equation
wishings