时间:2019-01-19 作者:英语课 分类:历史上的今天-2011年


英语课

 Februray 28th 1953 - In Britain scientists say they found the double helix structure of DNA 1. The molecule 2 that contains the human gene 3, years later Frances Crick describes the discovery that he and fellow scientist James Watson made.


"Biological systems are the result of evolution, and they produce very complicated things,now the reason of DNA (look) looks so beautiful and simple, it goes right back to near the origins of life.” 1993 – Start of an armed standoff at the Branch Davidian compound in Waco, Texas.
Federal agents try to arrest religious leader David Koresh for stockpiling guns and explosives.
That sparks a shoot-out which kills 4 agents and 6 of Koresh’s Davidian followers 4.
The standoff ends 51 days later when the compound burns to the ground killing 5 nearly 80 people.
1986 – Sweden’s prime minister Olof Palme is shot to death in central Stockholm; his murder remains 6 unsolved.
And 1983 –"All is quiet on New Year's Day" Rock group U2 releases its “War” album.  Among the tracks “New Year’s Day” and “Sunday Bloody 7 Sunday.”
Today in History February 28th ,Sandy Kozel,the Associated Press.

(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。
n.分子,克分子
  • A molecule of water is made up of two atoms of hygrogen and one atom of oxygen.一个水分子是由P妈̬f婘̬ 妈̬成的。
  • This gives us the structural formula of the molecule.这种方式给出了分子的结构式。
n.遗传因子,基因
  • A single gene may have many effects.单一基因可能具有很多种效应。
  • The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
追随者( follower的名词复数 ); 用户; 契据的附面; 从动件
  • the followers of Mahatma Gandhi 圣雄甘地的拥护者
  • The reformer soon gathered a band of followers round him. 改革者很快就获得一群追随者支持他。
n.巨额利润;突然赚大钱,发大财
  • Investors are set to make a killing from the sell-off.投资者准备清仓以便大赚一笔。
  • Last week my brother made a killing on Wall Street.上个周我兄弟在华尔街赚了一大笔。
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
adj.非常的的;流血的;残忍的;adv.很;vt.血染
  • He got a bloody nose in the fight.他在打斗中被打得鼻子流血。
  • He is a bloody fool.他是一个十足的笨蛋。
学英语单词
-phrenia
aall
air damping device
air steward
airplane spray tank
Alpinia
anagen
Aranguren
archival-quality
autocategorizes
automatic send/receive set
autoscreen film
back-burner
battle pieces
bibus
blastodisk
Bomberai, Semenanjung
brass cock straight
brightwaters
caidwell
cardiac(o)edema
casuarinoides
catachrestial
clayed sand
compound planetary train
concinnated
connectic
consolidated subsoil
coupling factor of two circuits
cylindrical sight tube
Dahlenwarsleben
deep underground disposal
diagonaly body break
direct-broadcast satellite television system
discuss
divided share
dodderel
entrechat de vol?e
feltrinelli
friedrichstas
frost-cracking
genus cetonias
go and to go gage
Hasidim
head-nurse
Hilda group
histaminums
howcroft
hydrodynamic process
incorporation
intermediate station
isoperimetric line
Jhudo
khazis
latest-generation
link indicator
Lugosi
lunde
make a concession to
many-ones
marmorstein
modern marineengine engineering
nonhockey
Nënoksa
odd job man
odonto-maxillary orthopedic
optical fusion
OSL
ou-
our school
percentage of compaction
pit membrane
plural service
pole compass
political program
pregnanolone
Proclaim it from the rooftops
radiumologist
red region
ridge ropes
Root-fomes
screw over
seconddegree
sentenel
simple rhombohedral
soil water diffusivity
student lamp
subperiostial
subsurface progressing cavity pump
surface electrical resistance
Tamilnād Plains
tectonic burial metamorphism
Teghalimet
that's the way life is
theory of prismatic society
unconstraint
washing section
weak singularity
well-affected
went round
windbaggeries
wire eye