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SSS 2011-10-20

时间:2011-11-01 08:27来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

 This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?

 
"We produce nine billion food animals in the United States every year. And most of these animals are fed antibiotics2 throughout their life. And it's the single greatest use of antibiotics in the United States." Lance Price, director of the TGen North Center for Microbiomics and Human Health in Flagstaff, at the ScienceWriters2011 conference on October 16th.
 
"And then this is the thing that just drives public health people crazy: most antibiotics are fed to healthy animals to promote growth or to prevent diseases3 that may be just occurring because of the way we're raising them. Racial overcrowding and unsanitary conditions—we call 'em production diseases. And so we're using these lifesaving drugs as production tools. It's pretty amazing.
 
"So most animals are raised in concentrated animal feeding operations, or CAFOs. I could not honestly engineer a better system for creating antibiotic1-resistant bacteria than to introduce antibiotics to this setting4. And that's exactly what we do every day in the United States. If we all recognize that antibiotic resistance5 is one of the greatest threats to public health we face today, we have to do something about this."
 
Thanks for the minute. For Scientific American's 60-Second Science, I'm Steve Mirsky.

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 antibiotics LzgzQT     
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 )
参考例句:
  • 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。
3 diseases 5c749da591474dd5c2c7f1d77b874f5d     
n.疾病( disease的名词复数 );弊端;恶疾;痼疾
参考例句:
  • Smoking is a causative factor in several major diseases. 抽烟是引起几种严重疾病的病因。
  • The illness frequently coexists with other chronic diseases. 这种病往往与其他慢性病同时存在。
4 setting 7i5zmt     
n.背景
参考例句:
  • The play has its setting in Vienna.该剧以维也纳为背景。
  • Where and when a story takes place is called the setting.故事发生的地点和时间称为故事背景。
5 resistance UWlxi     
n.抵抗力,反抗,反抗行动;阻力,电阻;反对;adj.抵抗的
参考例句:
  • Very little resistance was put up by the enemy.敌人没怎么进行抵抗。
  • An aircraft has to overcome the resistance of the air.飞机须克服空气的阻力。
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