A.procedure B.transplant   C.attempt     D.native      ...

问题详情：

A. procedure  B. transplant    C. attempt      D. native       E. extinct     F. prohibited    

G. worth      H. appreciate    I. reintroduce   J. undertaken   K. groundbreaking

With only about 1,000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species. That’s a move similar to what a Texas A&M University researchers have   41   for the past five years in a project called “Noah’s Ark.”

    Noah’s Ark is aimed at collecting eggs, embryos (胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become   42  , Dr. Duane Kraemer, a professor in Texas A&M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to   43   the species in the future.

    It is estimated that as many as 2,000 species of mammals, birds, reptiles will face extinction in over 100 years. The panda,   44   only to China, is in danger of extinction in the next 25 years.

    This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to   45   the embryo into a host animal.

The entire   46   could take from three to five years to complete.

“The nuclear transfer of one species to another is not easy, and the lack of available panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (怀孕). It takes a long time and it’s difficult, but this could be

  47   science if it works. They are certainly not putting any live pandas at risk, so it is

  48   the effort,” adds Kraemer, who is one of the leaders of the project at Texas A&M, the first-ever   49   at cloning a dog.

“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly   50   their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”

【回答】

J   E   I   D   B   A   K  G   C   H

知识点：信息匹配

题型：阅读填空