历史上的今天-Today in History 2011-02-28
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。