SSS 2009-03-18
时间：2019-01-08 作者：英语课 分类：Scientific American(三)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
Seventy percent of all antibiotics 1 in this country go to livestock 2 like pigs and chickens. And concern is growing about drug-resistant bacteria that sprout 3 up in crowded livestock facilities and may spread to humans. Now researchers suggest that a vector for that spread may be the common housefly.
Scientists from the Johns Hopkins Bloomberg School of Public Health collected samples of both flies and poultry 4 litter at chicken houses along the Delmarva Peninsula. That's the region where Delaware, Maryland and Virginia meet up, and it has the highest concentration of what are known as broiler chickens in the U.S.
They isolated 5 and analyzed 6 antibiotic-resistant enterococci and staphylococci from both groups. The samples showed that the bacteria in both the flies and the litter have similar characteristics and genes 7 for resistance. The researchers caution that they haven't shown conclusively 8 that flies are in fact spreading the diseases. But more than 30,000 flies might enter a poultry house over six weeks. And flies are known to be vectors of viral and bacterial 9 diseases such as cholera 10. Another study to add to the growing pile of research suggesting our cheap meat is not as cheap as it seems.
Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.
- 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。
- Both men and livestock are flourishing.人畜两旺。
- The heavy rains and flooding killed scores of livestock.暴雨和大水淹死了许多牲口。
- When do deer first sprout horns?鹿在多大的时候开始长出角？
- It takes about a week for the seeds to sprout.这些种子大约要一周后才会发芽。
- There is not much poultry in the shops. 商店里禽肉不太多。
- What do you feed the poultry on? 你们用什么饲料喂养家禽?
- His bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
- Patients with the disease should be isolated. 这种病的患者应予以隔离。
- The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
- The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》
- You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
- Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
- All this proves conclusively that she couldn't have known the truth. 这一切无可置疑地证明她不可能知道真相。 来自《简明英汉词典》
- From the facts,he was able to determine conclusively that the death was not a suicide. 根据这些事实他断定这起死亡事件并非自杀。 来自《简明英汉词典》
- 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。