Question

【題目】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

Answer 1

【答案】

【1】B

【2】B

【3】A

【4】D

【5】C

【解析】

試題分析：這是一篇科普文章閱讀，主要向讀者介紹了中國科學家為保證熊貓的數(shù)量而積極研用克隆技術來杜絕熊貓滅絕的計劃。

【1】推理判斷題。根據(jù)Noah’s Ark is aimed at collecting eggs, embryos (胚胎) and DNA of endangered animals and storing them in liquid nitrogen可知，這個組織的主要致力于拯救瀕危動物，故選B。

【2】細節(jié)分析題。根據(jù)The entire procedure could take from three to five years to complete.可知，中國熊貓克隆計劃將花費3-5年，故選B。

【3】細節(jié)分析題。根據(jù)“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,”可知缺少合適的熊貓卵是最大的難題，故選A。

【4】細節(jié)分析題。根據(jù)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，將有2000多種物種滅絕，故選D。

【5】歸納總結(jié)題。結(jié)合全文內(nèi)容來看，作者主要向我們介紹了現(xiàn)在中國科學家致力于克隆熊貓以阻止熊貓滅絕的計劃，故選C。