免疫防御

Yael: I just read about an exciting technique. Researchers found a way to convert types A and B blood into type O blood--the type that can be transfused into any patient. This advance could help avoid blood shortages in the future. Don: Wow, that is

发表于:2018-12-03 / 阅读(71) / 评论(0) 分类 初学者听力文摘精选

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The plague is most famous for killing tens of millions of people all over Europe in the 1300s. Plague is caused by the bacteria Yersinia pestis. And th

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(八)月

He is immune to chickenpox, he had it as a child. 他对水痘免疫,他小时候就得过了。 immune表示免疫的,immune system就是指身体的免疫系统;而对...有免疫力就用be immune to...这个词组。

发表于:2018-12-25 / 阅读(62) / 评论(0) 分类 蒋健棠英语实用句子

【背景】 血型分类: 一般常见A、B、AB和O四种,另外还有RH、MNS、P等极为稀少的10余种血型系统。其中,AB型可以接受任何血型的血液输入,因此被称作万能受血者,O型可以输出给任何血型的人

发表于:2018-12-27 / 阅读(50) / 评论(0) 分类 英语听力广播—Listening

It's time for a new year and a new you, but perhaps your heart is not in it this time around. Maybe you're jaded from too many failed New Year's resolutions, or maybe you're just not feeling motivated these days. Here are a few reasons why you may no

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 英语阅读理解

HIV Vaccine Research 艾滋病疫苗研究 Two years ago, Jason Brenchley took part in an HIV vaccine trial sponsored by the U.S. National Institutes of Health. An NIH researcher himself, Mr. Brenchle

发表于:2019-01-08 / 阅读(76) / 评论(0) 分类 VOA2005(上)--环境科学探索

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Barbara Klein. This week, we talk about a sickness called lupus and other autoimmune diseases. Autoimmune diseases affect the immune system the body's

发表于:2019-01-11 / 阅读(82) / 评论(0) 分类 VOA慢速英语2009年(四)月

This is the VOA Special English Health Report. Scientists may have found a way to reduce shortages of type O blood. Type O is the kind of blood that hospitals most often need. What the researchers are testing is an easier way to make type O blood ou

发表于:2019-01-11 / 阅读(68) / 评论(0) 分类 VOA慢速英语2007年(五)月

New Ebola Vaccine Proves Effective in Mice U.S. scientists have developed a new vaccine against the deadly ebola virus which has the potential to remain potent after years of storage. Ebola is one of the deadliest viruses known. It kills about nine o

发表于:2019-01-13 / 阅读(55) / 评论(0) 分类 VOA标准英语2011年(十二月)

Researchers have developed an improved version of the smallpox vaccine that can be combined with a vaccine against anthrax. The dual vaccine represents a significant scientific achievement as well as a possible improved defense against biological att

发表于:2019-01-14 / 阅读(79) / 评论(0) 分类 VOA标准英语2010年(十)月

Scientists Target Antibodies That Work Against Many HIV Mutations The search for a vaccine against HIV/AIDS has been disappointing, in part because the virus cleverly changes to elude the antibodies of the human immune system. Now, scientists have id

发表于:2019-01-14 / 阅读(95) / 评论(0) 分类 VOA标准英语2011年(八月)

Study: Immune System Weakens in Space During the final flight of the US space shuttle Atlantis in the summer of 2011, one of the most important pieces of scientific cargo on board was a medical experiment designed to test how the human immune system

发表于:2019-01-14 / 阅读(80) / 评论(0) 分类 VOA标准英语2013年(四月)

It starts with a tickle in your throat that becomes a cough. 你一开始是喉咙痒,而后转为咳嗽。 Your muscles begin to ache, you grow irritable, and you lose your appetite. It's official: you've got the flu. 肌肉开始疼痛,逐渐烦躁

发表于:2019-01-17 / 阅读(44) / 评论(0) 分类 TED演讲教育篇

Yael: I just read about an exciting technique. Researchers found a way to convert types A and B blood into type O blood--the type that can be transfused into any patient. This advance could help avoid blood shortages in the future. Don: Wow, that is

发表于:2019-01-26 / 阅读(58) / 评论(0) 分类 英语听力文摘 English Digest

SCIENCE IN THE NEWS - Autoimmune Diseases Threaten The Body's Natural Defense For Fighting DiseaseBy Brianna Blake Broadcast: Tuesday, November 21, 2006 VOICE ONE: This is SCIENCE IN THE NEWS, in VOA

发表于:2019-01-30 / 阅读(94) / 评论(0) 分类 2006年慢速英语(十一)月

SCIENCE IN THE NEWS -July 9, 2002: Tuberculosis By Oliver Chanler VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Steve Ember with Science in the News, a VOA Special English program about recen

发表于:2019-01-30 / 阅读(515) / 评论(0) 分类 科技之光

今天分享的是柠檬水的妙用。 重点词汇 immune system 免疫系统; potassium n.化钾; freshen vt.使新鲜; 使清爽,使有精神,把(自己)盥洗一番; 1. Gives your immune system a boost. 2. Excellent source of potassium.

发表于:2019-02-02 / 阅读(94) / 评论(0) 分类 卡卡课堂早餐英语

今天我们要学的词是immune。Immune, 的意思是免疫的,比如,immune system就是指免疫系统, immune disease则是免疫系统疾病。Immune还可以指免除的,不受影响的. Apple's OS X, which has long been considered immu

发表于:2019-02-06 / 阅读(55) / 评论(0) 分类 英语单词荟萃

Developing countries in Africa are bracing for serious setbacks in their economies. One of the countries that may feel the effects of the downturn more acutely than others is Kenya, which suffered months of political unrest earlier this year. VOA Co

发表于:2019-02-06 / 阅读(55) / 评论(0) 分类 VOA标准英语2008年(十月)

He wanted Amelio to help him return to Apple as the CEO. 他想让阿梅里奥帮助他回到苹果担任CEO。 There's only one person who can rally the Apple troops, Jobs said, only one person who can straighten out the company. 只有一个人可以

发表于:2019-02-22 / 阅读(70) / 评论(0) 分类 乔布斯传
学英语单词
active immunity
ajaccios
Almyropotamos
Ameca
amedo
angon
average daily calling rate
ball and inner ring assembly
barge to barge transfer
bills drawn under letter of credit
binary to decimal conversion
binnein mor
blowing spray
bomb calorimeters
branches at home and abroad
brick laid with mortar
capricorn beetle
carib woods
chimbley
complete set of eigenstates
contact flange
core and winding assembly
darrayne
disprovide
diverting dam
draw ... up
drift epoch
droseras
electron paramagnetic resonance
europium acetate
exchange volume
field investment
flairing
gemmifications
general call signal
Gentiloni
genus pedilanthuss
global liquidity
gone over
Hai Phong
heat-producing reaction
hflo
independent fault
inlaces
internal fuel
ionic speaker
irreversible circulation
ks-standard loading
latex examination gloves
LAVINIA
lipophilic compound
literatize
Loboc
macrocyclic compounds
metal-semiconductor-metal diode
monosuits
nonpsychological
notched furnace
oil sump tank
pallidofugal
Parafasciolopsis
pass-over offset
pentaradiate
pickup points
Pillsbury, Lake
plaque-infested port
plasma lipids
playdohs
public lawyer
Puccinia epimedii
put one's best foot first
radicicol
ratten-
readmitance
reclaiming by centrifuge
red-shank
relational instruction
resource productivity
sampling length
scare someone out of his wits
seasonal group profile code
settleability test
small wiring
soft corruption
spoliation
steam and gas
stereochemical formula
sun-bathing
suppression hangover time
tax reimbursement for export
thermofocal
tracepoint
tunnel in rock
twofold degeneracy
uncorrugated
unfavorable variance
union colourimeter
wetting of cloth
whidder
Wycakon-G
yudha