时间:2019-02-03 作者:英语课 分类:VOA标准英语2009年(十月)


英语课

By Tom Rivers
London
07 October 2009


 
Ada Yonath (file photo)
Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA 1 code is translated into life itself. 


Americans Venkatraman Ramakrishnan and Thomas Steitz and Ada Yonath from Israel were all instrumental in showing how proteins are made at the atomic level.


The chairman of the Nobel Chemistry Committee, Gunnar Von Heijne says the importance of their research cannot be overstated.


"The three laureates have accomplished 2 what many scientists thought impossible, namely to determine the three- dimensional structure of the molecular 3 machine that makes all the proteins in a cell, the so-called ribosome," said Von Heijne. "Using x-ray crystallography to obtain snapshots of the ribosome in action, they have been able to explain how the ribosome selects and couples together amino acids to form proteins."
 
While DNA molecules 4 contain the blueprint 5 for life inside each cell of every organism, it is the ribosome that translates that information into life.


And as professor Von Heijne says, their understanding of the mechanisms 6 at work has opened the door to others seeking new treatments.


"They have also shown how bacterial 7 ribosomes can be stopped dead in their tracks by various antibiotics 8, thereby 9 providing insights that help researchers design new drugs to be used in our never-ending fight against bacterial infections," he explained.


The three recipients 10 share the $1.4 million prize. The chemistry award is the third in the 2009 Nobel series. Prizes for medicine were handed out Monday and for physics on Tuesday.


Prizes for the sciences and for peace have been handed out annually 11 since 1901.



(缩)deoxyribonucleic acid 脱氧核糖核酸
  • DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
  • Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。
adj.有才艺的;有造诣的;达到了的
  • Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。
  • Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。
adj.分子的;克分子的
  • The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
  • For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时,分子的碰撞就停止了。
分子( molecule的名词复数 )
  • The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
  • Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里,大分子裂变为小分子。
n.蓝图,设计图,计划;vt.制成蓝图,计划
  • All the machine parts on a blueprint must answer each other.设计图上所有的机器部件都应互相配合。
  • The documents contain a blueprint for a nuclear device.文件内附有一张核装置的设计蓝图。
n.机械( mechanism的名词复数 );机械装置;[生物学] 机制;机械作用
  • The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
  • He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》
a.细菌的
  • Bacterial reproduction is accelerated in weightless space. 在失重的空间,细菌繁殖加快了。
  • Brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。
n.(用作复数)抗生素;(用作单数)抗生物质的研究;抗生素,抗菌素( antibiotic的名词复数 )
  • the discovery of antibiotics in the 20th century 20世纪抗生素的发现
  • The doctor gave me a prescription for antibiotics. 医生给我开了抗生素。
adv.因此,从而
  • I have never been to that city,,ereby I don't know much about it.我从未去过那座城市,因此对它不怎么熟悉。
  • He became a British citizen,thereby gaining the right to vote.他成了英国公民,因而得到了投票权。
adj.接受的;受领的;容纳的;愿意接受的n.收件人;接受者;受领者;接受器
  • The recipients of the prizes had their names printed in the paper. 获奖者的姓名登在报上。 来自《简明英汉词典》
  • The recipients of prizes had their names printed in the paper. 获奖者名单登在报上。 来自《现代英汉综合大词典》
adv.一年一次,每年
  • Many migratory birds visit this lake annually.许多候鸟每年到这个湖上作短期逗留。
  • They celebrate their wedding anniversary annually.他们每年庆祝一番结婚纪念日。
学英语单词
alce
alternate operation
analog communication system
apivore
arei
badger skin
banharn
beidel
bhutanis
bioirrigated
broncho-egophony
CADD - computer-aided design and drafting
cephalaspidas
Cobh
common mode operation
connecting rod jig
conyngham
court reporters
crop fair and refit
cut sheets
cystopteriss
D'Alembert's test for convergence
deferral period
Dichloro-chloroaniline-triazine
dumbification
earth metals
egyptian capitals
electric double refraction
electrical(electric)
electrohydraulic steering gear
ethnically
feasible basis
fixed destination ticket
gaftney
ghurry
groundwater dynamics
haunched arch
have a slate off
have many irons on the fire
heat pump plant
Hennickendorf
idolizers
incisal embrasure
indentured worker
key property
Leonidas I
lesser sciatic foramen
lobular pneumonic
lossit
mactator
Nanny Goating
nearly best linear estimator
nephometer
net profit theory
neutron powermeter
normal tooth profile
noseband
o-aminoazobenzene
odontus
organization for product design
payments balance
pear cider
pesture
petticoat insulator
phallocratic
Phosphoglucomutase(glucose-cofactor)
polymorphic transformation
post production
preputial diverticulum
principle of charge compensation
pseudotumor of kidney
ranicipitid
rankism
referee for inquiry
repulsion state
rhenium(iv) oxydifluoride
rhinoptia
roller oscillating tooth
rontgen radiation
room of mother and infant
saccharimete
Serg., serg.
shoot bull
side wall stock divider
soil seepage
sort results
sorting key
special-branch
square bands machine
steam coals
steiber
stir-frying with adjuvants
streak plate
Strong, Anna Louise
suicidism
surf skis
swift electron
thawing equipment
vankirk
wax-pod
wisconsin glacial period
yam yams