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Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(427) / 评论(0) 分类 新东方背诵文选

越来越多的人居住在异国他乡。有三到四个身世来源的作家皮柯.耶尔(Pico Iyer) 思索着家的意义,旅行的乐趣和静止的平和。

发表于:2018-12-09 / 阅读(334) / 评论(0) 分类 TED公开课:地球村

Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many

发表于:2018-12-15 / 阅读(269) / 评论(0) 分类 VOA慢速英语2008年(六)月

An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ

发表于:2018-12-16 / 阅读(236) / 评论(0) 分类 VOA标准英语2010年(十一)月

Voice 1 Welcome to Spotlight. I'm Liz Waid. Voice 2 And I'm Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 The sounds of traffic! You can h

发表于:2018-12-19 / 阅读(255) / 评论(0) 分类 环球英语 Spotlight

Long ago, before BandAids, or even medicine of any kind, our ancestors evolved to heal cuts themselves. If you got sliced open, the body blocked it up, to prevent blood loss, water loss, infection. But as we gained that powerwe sacrificed something e

发表于:2018-12-24 / 阅读(290) / 评论(0) 分类 2017年Scientific American(一)月

Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s

发表于:2019-01-02 / 阅读(273) / 评论(0) 分类 原版英语小短文

SCIENCE REPORT - January 2, 2002: New Cold Drug By Nancy Steinbach This is the VOA Special English Science Report. American researchers say they have developed the first drug that can effectively trea

发表于:2019-01-07 / 阅读(299) / 评论(0) 分类 科技之光

英语短文:Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

发表于:2019-01-08 / 阅读(328) / 评论(0) 分类 英语小短文

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(313) / 评论(0) 分类 2011年VOA慢速英语(二)月

'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the

发表于:2019-01-14 / 阅读(252) / 评论(0) 分类 VOA标准英语2011年(八月)

Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours

发表于:2019-01-14 / 阅读(282) / 评论(0) 分类 VOA标准英语2013年(七月)

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(301) / 评论(0) 分类 世界各地新闻集锦

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(308) / 评论(0) 分类 60秒科学

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(540) / 评论(0) 分类 科技之光

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

发表于:2019-01-30 / 阅读(288) / 评论(0) 分类 健康与经济

Vieques Controversy May Persist After the Bombing Ends Michael Bowman Miami 18 Jun 2001 22:05 UTC Protests continued Monday on the Puerto Rican island of Vieques, days after the Bush administration an

发表于:2019-01-31 / 阅读(307) / 评论(0) 分类 VOA2001-国际风云(1)

By VOA News 20 November 2007 Two separate teams of scientists say they have transformed ordinary human skin cells into ones that look and act like embryonic stem cells. Laboratory teams at universities in the United States and Japan Tuesday announced

发表于:2019-01-31 / 阅读(231) / 评论(0) 分类 VOA常速英语2007年(十一月)

Japanese designer Pico has combined her love of cats and handbags to create highly realistic purses. The bags are shaped like kitties with whiskersand tails. Each cat-bag is priced at about $500 to $700, but buyers dont seem to mind the steep pricing

发表于:2019-02-07 / 阅读(230) / 评论(0) 分类 阅读空间

Lana Del Rey 微电影《Tropico》!电影艺术赋予了这个倾倒众生的女人一个展示灵魂的机会,这是你无法在平时见到的美丽躯体,意味深长的镜头切换唤醒了我们对于神秘之美的好奇,玄妙的音乐如

发表于:2019-02-17 / 阅读(252) / 评论(0) 分类 流行英文歌曲
学英语单词
a social butterfly
active time
alveo-
Aphilan
apofacial reaction
approve a bill
arinc
bassia bassensis
be past praying for
bogying
brannock
brumbies
Calciorhodochrosite
calyx melo
car-bottom furnace
cartridge container
chart of percentage comparison
Chichatka
choreohyperkinesis
chorionic shell
cibodas
cirsoid hemangioma
co-producing
compact into
CONAG (combined nuclear and gas turbine)
cyclovir
denotements
desolution
diabase tuff
diethylallylacetamide
digital record mark
direct-return system
electric-signal storage tube
endless loop cartridge tape
environmental laws
ethnic discrimination
experimental investigation
festivalist
field, electric
forced perspective
frustoconical
g3p
gas engine power plant
generalized Jocobian variety
Gösenroth
hobsinking
hold it
Indict.
invading waves in estuary
ion-exchange sephadex
isonipecotic acid
j.k
Kefa Kifle Hāger
koehn
lam into
land banking
leaflet
ligamentum transcersum atlantis
low viscosity rubber
method of cementation
midvoyage condition
Mormon L.
mostows
Motbāri
nicotinic acid picrate
northern lights
OBE (operating basis earthquake)
oleum picis rectificatum
olive ridley turtle
osmo-comformer
Pachuca de Soto (Pachuca)
partitioning strategies
PEFCO
photographic magnitude
Piltown
pirayas
planning dependencies
probability of reliability probability
protoplasmic toxin
Rayleigh balance
resistance to disease
roast-sintering
sand sill
scrach
segment electrode transistor
sfs
shade bearing tree
short-hop
show someone around
Slievemore
stencil
substituted benzene
Swan Plain
symmetrized
tap changing device
tellurism
the least bit
truncated sample
vasa prominens
verivakiss
weight-lifting
Z Camelopardalis star