全新版大学英语综合教程3课文翻译unit8(国外英文资料).docVIP

全新版大学英语综合教程3课文翻译unit8(国外英文资料) Unit 8 Cloning technology Text A Cloning technology makes it possible for us to duplicate ourselves. Should the technology be allowed to apply? What are the benefits and dangers of cloning? Clone life was born Giana cora On July 5, 1996, at 5 p.m., the most famous lamb was born. It was born in a small shed in the path of the roslin institute in roslin, Scotland, which was created by the academy. And its creator, wilmut, Ian is a balding discarded embryos, 52, but dont remember where he is to hear the sheep named dollys head. He didnt even remember once had a phone call from John bray, Ken, who gave birth to dolly the sheep scientists monitored the whole process of pregnancy on the phone said dolly live healthy, weight 6.6 kg. No one broke open the champagne. No one was photographed. Only a few staff members of the institute, and a local veterinarian who delivered the birth, were present. However, dolly, the little lamb with the hundreds of thousands of other sheep scattered on the rolling hills of Scotland, soon changed the world. When future generations write the history of our times, this quiet birth, the birth of this little lamb, will stand out. The world has changed since it was born. Dolly is a clone. It is not a product of a combination of sperm and eggs, but is made from the genetic material of a breast cell from a six-year-old sheep. Wilmutter took out all the genetic material from the egg of another sheep and then fused the egg with the breast. The cells of the mammary gland are set up in the egg to grow and develop. The result was dolly the sheep, identical twin to the sheep that provided the mammary cells, but the twin was born six years later. Before dolly came out, cloning was a science fiction story. This possibility was raised a few decades ago, and then abandoned, and serious scientists thought that cloning was impossible in the near future. Now it is no longer a fantasy, after decades, perhaps one day you can clone th