SSS 2008-10-06
时间：2019-01-08 作者：英语课 分类：Scientific American(十)月
This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ?
Germany’s Harald zur Hausen and France’s Luc Montagnier and Francoise Barre-Sinoussi share the 2008 Nobel Prize in Physiology 1 or Medicine, awarded October 6th.
Barre-Sinoussi and Montagnier discovered HIV. Shortly after reports in the early 1980s of a new immunodeficiency syndrome 2, researchers all over the world raced to find the cause. The two French scientists cultured cells from lymph nodes of patients. They first detected the enzyme 3 reverse transcriptase, which meant that a retrovirus was active. Further searching turned up retroviral particles, which could kill white blood cells and which also reacted with antibodies from infected patients. These discoveries made possible unprecedented 4 rapid development of blood screening techniques and of new antiviral therapies.
Zur Hausen defied the medical establishment and postulated 5 in the 1970s that cervical cancer was caused by the human papilloma virus. He was able to isolate 6 viral DNA 7 in tumors. He also determined 8 that there were multiple kinds of papilloma viruses, and that only some caused cancer. His discovery led to the development of a vaccine 9 against cervical cancer.
Thanks for the minute for Scientific American's 60-Second Science. I'm Steve Mirsky .
- He bought a book about physiology.他买了一本生理学方面的书。
- He was awarded the Nobel Prize for achievements in physiology.他因生理学方面的建树而被授予诺贝尔奖。
- The Institute says that an unidentified virus is to blame for the syndrome. 该研究所表示,引起这种综合症的是一种尚未确认的病毒。
- Results indicated that 11 fetuses had Down syndrome. 结果表明有11个胎儿患有唐氏综合征。
- Above a certain temperature,the enzyme molecule will become unfolded.超过一定温度，酶分子将会展开。
- An enzyme that dissolves the fibrin of blood clots.能溶解血凝块中的纤维的酶。
- The air crash caused an unprecedented number of deaths.这次空难的死亡人数是空前的。
- A flood of this sort is really unprecedented.这样大的洪水真是十年九不遇。
- They postulated a 500-year lifespan for a plastic container. 他们假定塑料容器的寿命为500年。
- Freud postulated that we all have a death instinct as well as a life instinct. 弗洛伊德曾假定我们所有人都有生存本能和死亡本能。 来自辞典例句
- Do not isolate yourself from others.不要把自己孤立起来。
- We should never isolate ourselves from the masses.我们永远不能脱离群众。
- 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。
- I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
- He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。