[题目]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 more similar to what a Texas A & M University researche 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】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 more similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called Noah’s Ark.

Noah’s Ark is aimed at collecting eggs, embryos (胚胎) and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, 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 reintroduce the species in the future.

It is estimated that as many as 2,000 species of mammals, birds and reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct 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 implant the embryo into a host animal.

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

“The nuclear transfer (核子移植) of one species to another is not easy, and the lack of available (capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it's difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort.” adds Kraemer, who is one of the leaders of the Project at Texas A & M, the first-ever attempt 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 appreciate 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.”

【1】The aim of Noah's Ark project is to ____ .

A. make efforts to clone the endangered pandas

B. save endangered animals from dying out

C. collect DNA of endangered animals to study

D. transfer the nuclear of one animal to another

【2】How long will the Chinese panda cloning project take according to the passage?

A. 1 Year. B. 3 to 5 years. C. 2 years. D. 25 years.

【3】According to Professor Kraemer, the major problem in cloning pandas would be the lack of ____.

A. available panda eggs B. host animals

C. qualified researchers D. enough money

【4】From the passage we know that ____ .

A. Kraemer and his team have succeeded in cloning a dog

B. scientists try to implant a panda's egg into a rabbit

C. Kraemer will work with Chinese scientists in clone researches

D. about two thousand species will probably die out in a century

【5】The best title for the passage may be ____.

A. China's Success in Pandas Cloning

B. The First Cloned Panda in the World

C. Exploring the Possibility to Clone Pandas

D. China --- the Native Place of Pandas Forever

【答案】

【1】B

【2】B

【3】A

【4】D

【5】C

【解析】

试题分析：这是一篇科普文章阅读，主要向读者介绍了中国科学家为保证熊猫的数量而积极研用克隆技术来杜绝熊猫灭绝的计划。

【1】推理判断题。根据Noah’s Ark is aimed at collecting eggs, embryos (胚胎) and DNA of endangered animals and storing them in liquid nitrogen可知，这个组织的主要致力于拯救濒危动物，故选B。

【2】细节分析题。根据The entire procedure could take from three to five years to complete.可知，中国熊猫克隆计划将花费3-5年，故选B。

【3】细节分析题。根据“The nuclear transfer (核子移植) of one species to another is not easy, and the lack of available (capable of being used) panda eggs could be a major problem,”可知缺少合适的熊猫卵是最大的难题，故选A。

【4】细节分析题。根据It is estimated that as many as 2,000 species of mammals, birds and reptiles will become extinct in over 100 years可以看出，在近100年里，将有2000多种物种灭绝，故选D。

【5】归纳总结题。结合全文内容来看，作者主要向我们介绍了现在中国科学家致力于克隆熊猫以阻止熊猫灭绝的计划，故选C。

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