英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

SSS 2009-01-20

时间:2010-05-17 02:49来源:互联网 提供网友:木渐浅。   字体: [ ]
特别声明:本栏目内容均从网络收集或者网友提供,供仅参考试用,我们无法保证内容完整和正确。如果资料损害了您的权益,请与站长联系,我们将及时删除并致以歉意。
    (单词翻译:双击或拖选)

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.

 

For years, scientists and physicians have been up in arms about the rise in antibiotic1 resistance. Seems that many  bacteria, devious2 buggers that they are, are able to share genetic5 information—including, say, the instructions for destroying penicillin6. Well, if that’s not bad enough, scientists from the N.Y.U. School of Medicine have found that some bacteria can use viruses to help them pass along the recipe for their favorite toxin7, results published in the journal Science.

Like humans, bacteria are also prone8 to infection by viruses. And most of these viruses—called bacteriophage, or phage for short—make their bacterial9 victims sick. Or even dead. But in the laboratory, the scientists discovered that Staphylococcus aureus, the bug3 that causes toxic10 shock syndrome11 among other things, can actually co-opt phage, using them to shuttle the gene4 for toxic-shock toxin to another bacteria, in this case Listeria. That’s doubly nasty, because Listeria on its own causes food poisoning, so if it added toxic shock to its repertoire12, well, that would be one seriously bad bug. Whether Staph aureus can pull off this stunt13 outside the lab’s not clear. But in this particular battle, ya gotta hope the viruses come out on top.

 

Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.

 


点击收听单词发音收听单词发音  

1 antibiotic KNJzd     
adj.抗菌的;n.抗生素
参考例句:
  • The doctor said that I should take some antibiotic.医生说我应该服些用抗生素。
  • Antibiotic can be used against infection.抗菌素可以用来防止感染。
2 devious 2Pdzv     
adj.不坦率的,狡猾的;迂回的,曲折的
参考例句:
  • Susan is a devious person and we can't depend on her.苏姗是个狡猾的人,我们不能依赖她。
  • He is a man who achieves success by devious means.他这个人通过不正当手段获取成功。
3 bug 5skzf     
n.虫子;故障;窃听器;vt.纠缠;装窃听器
参考例句:
  • There is a bug in the system.系统出了故障。
  • The bird caught a bug on the fly.那鸟在飞行中捉住了一只昆虫。
4 gene WgKxx     
n.遗传因子,基因
参考例句:
  • 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。
5 genetic PgIxp     
adj.遗传的,遗传学的
参考例句:
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
6 penicillin sMXxv     
n.青霉素,盘尼西林
参考例句:
  • I should have asked him for a shot of penicillin.我应当让他给我打一针青霉素的。
  • Penicillin was an extremely significant medical discovery.青霉素是极其重要的医学发现。
7 toxin hn5wb     
n.毒素,毒质
参考例句:
  • Experts have linked this condition to a build-up of toxins in the body.专家已把这一病症与体内毒素的积累联系起来。
  • Tests showed increased levels of toxin in shellfish.检验表明水生有壳动物的毒素水平提高了。
8 prone 50bzu     
adj.(to)易于…的,很可能…的;俯卧的
参考例句:
  • Some people are prone to jump to hasty conclusions.有些人往往作出轻率的结论。
  • He is prone to lose his temper when people disagree with him.人家一不同意他的意见,他就发脾气。
9 bacterial dy5z8q     
a.细菌的
参考例句:
  • 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。
10 toxic inSwc     
adj.有毒的,因中毒引起的
参考例句:
  • The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
  • There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。
11 syndrome uqBwu     
n.综合病症;并存特性
参考例句:
  • 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。
12 repertoire 2BCze     
n.(准备好演出的)节目,保留剧目;(计算机的)指令表,指令系统, <美>(某个人的)全部技能;清单,指令表
参考例句:
  • There is an extensive repertoire of music written for the flute.有很多供长笛演奏的曲目。
  • He has added considerably to his piano repertoire.他的钢琴演奏曲目大大增加了。
13 stunt otxwC     
n.惊人表演,绝技,特技;vt.阻碍...发育,妨碍...生长
参考例句:
  • Lack of the right food may stunt growth.缺乏适当的食物会阻碍发育。
  • Right up there is where the big stunt is taking place.那边将会有惊人的表演。
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎点击提交分享给大家。
------分隔线----------------------------
TAG标签:   SSS  resistance
顶一下
(0)
0%
踩一下
(0)
0%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴