CCTV9英语新闻：中国克隆猪正产业化 每年产500头

By CCTV reporter Su Yuting

Cloning is a controversial and decisive issue that has split public opinion regarding its potential benefits versus 1 the ethical 2 issues it raises. In recent years, scientists have been using the cloning of pigs for medical research. But now China is using a low-cost, and efficient technique, dubbed 3 "handmade cloning" to mass-produce cloned pigs.

Our reporter Su Yuting went to Shenzhen in southern China to visit the company BGI, the world's largest center for the cloning of pigs, to find out more.

They may look like ordinary pigs, but they’re far from it. Each is carrying cloned embryos 4. Many are clones themselves. In China, the cloning of pigs has become far easier and efficient, with the application of mass production.

“We implant 5 the embryos into the sow’s uterus. The surgery takes about a hour. Our team can do two implantations a day. The success rate is about 70 to 80 percent. We will take special care of these sows in an observatory 6 room to ensure it recover safe and sound.” Technician Li Dongyin said.

Pigs are very similar to humans in terms of their genetic 7 structure and body function. Every single one of these cloned pigs is genetically 8 identical. They serve as useful models for treating chronic 9 diseases and helping 10 pharmaceutical 11 companies develop effective drugs that could be used on humans.

About 500 cloned pigs are produced here every year. Experts say the technology of “hand-made cloning” is the key for achieving cloning on an industrial scale.

“For hand-made cloning, it has three very crucial advantages. First, it’s very low cost, not only for the equipment but also for human resources, we don’t need to invest too much. And second, it’s highly efficient. The efficiency rate is very high compared to traditional cloning. And third it’s very easy to learn and this technology is very easy to transfer to other places. Based on these three points, we can really help pharmaceutical companies produce disease models at very low cost.” Du Yutao, vice 12 president of BGI Healthcare, said.

“This in my mind and I think across the world for many scientists' minds, creates incredible resources that very few places can do. And so, China encourages the cloning of pigs for the purpose of medical studies is really fantastic.”

Scientific innovation is one of the major driving forces in our world today. But the issue of cloning has long been controversial, and only time will tell if the debate over its pros 13 and cons 14 will be finally resolved.

点击收听单词发音  






1
versus

  
 


prep.以…为对手，对；与…相比之下


参考例句：





The big match tonight is England versus Spain.今晚的大赛是英格兰对西班牙。
The most exciting game was Harvard versus Yale.最富紧张刺激的球赛是哈佛队对耶鲁队。












2
ethical

  
 


adj.伦理的，道德的，合乎道德的


参考例句：





It is necessary to get the youth to have a high ethical concept.必须使青年具有高度的道德观念。
It was a debate which aroused fervent ethical arguments.那是一场引发强烈的伦理道德争论的辩论。












3
dubbed

  
 


v.给…起绰号( dub的过去式和过去分词 )；把…称为；配音；复制


参考例句：





Mathematics was once dubbed the handmaiden of the sciences. 数学曾一度被视为各门科学的基础。
Is the movie dubbed or does it have subtitles? 这部电影是配音的还是打字幕的？ 来自《简明英汉词典》












4
embryos

  
 


n.晶胚；胚，胚胎( embryo的名词复数 )


参考例句：





Somatic cells of angiosperms enter a regenerative phase and behave like embryos. 被子植物体细胞进入一个生殖阶段，而且其行为象胚。 来自辞典例句
Evolution can explain why human embryos look like gilled fishes. 进化论能够解释为什么人类的胚胎看起来象除去了内脏的鱼一样。 来自辞典例句












5
implant

  
 


vt.注入，植入，灌输


参考例句：





A good teacher should implant high ideals in children.好教师应该把高尚理想灌输给孩子们。
The operation to implant the artificial heart took two hours.人工心脏植入手术花费了两小时。












6
observatory

  
 


n.天文台，气象台，瞭望台，观测台


参考例句：





Guy's house was close to the observatory.盖伊的房子离天文台很近。
Officials from Greenwich Observatory have the clock checked twice a day.格林威治天文台的职员们每天对大钟检查两次。












7
genetic

  
 


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。












8
genetically

  
 


adv.遗传上


参考例句：





All the bees in the colony are genetically related. 同一群体的蜜蜂都有亲缘关系。
Genetically modified foods have already arrived on American dinner tables. 经基因改造加工过的食物已端上了美国人的餐桌。 来自英汉非文学 - 生命科学 - 基因与食物












9
chronic

  
 


adj.(疾病)长期未愈的，慢性的；极坏的


参考例句：





Famine differs from chronic malnutrition.饥荒不同于慢性营养不良。
Chronic poisoning may lead to death from inanition.慢性中毒也可能由虚弱导致死亡。












10
helping

  
 


n.食物的一份&adj.帮助人的，辅助的


参考例句：





The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。












11
pharmaceutical

  
 


adj.药学的，药物的；药用的，药剂师的


参考例句：





She has donated money to establish a pharmaceutical laboratory.她捐款成立了一个药剂实验室。
We are engaged in a legal tussle with a large pharmaceutical company.我们正同一家大制药公司闹法律纠纷。












12
vice

  
 


n.坏事；恶习；[pl.]台钳，老虎钳；adj.副的


参考例句：





He guarded himself against vice.他避免染上坏习惯。
They are sunk in the depth of vice.他们堕入了罪恶的深渊。












13
pros

  
 


abbr.prosecuting 起诉；prosecutor 起诉人；professionals 自由职业者；proscenium （舞台）前部n.赞成的意见( pro的名词复数 )；赞成的理由；抵偿物；交换物


参考例句：





The pros and cons cancel out. 正反两种意见抵消。 来自《现代英汉综合大词典》
We should hear all the pros and cons of the matter before we make a decision. 我们在对这事做出决定之前，应该先听取正反两方面的意见。 来自《简明英汉词典》












14
cons

  
 


n.欺骗，骗局( con的名词复数 )v.诈骗，哄骗( con的第三人称单数 )


参考例句：





The pros and cons cancel out. 正反两种意见抵消。 来自《现代英汉综合大词典》
We should hear all the pros and cons of the matter before we make a decision. 我们在对这事做出决定之前，应该先听取正反两方面的意见。 来自《简明英汉词典》