高考英语阅读理解冲刺全程训练(23)

2014高考英语阅读理解冲刺全程训练（23）及答案

阅读理解

With only about 1,000 pandas left in the world, China is desperately trying to clone the animal and save these in a dangerous situation. That's a move 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), semen and DNA of these 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 probably 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 of one species to another is not easy, but 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 (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. The cooperation between us is very much needed."

1. The final 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

答案解析：答案为B。本题为细节题。由第二段内容可知，“诺亚方舟”项目的目的在于收集濒临灭绝的动物的卵子、胚胎、精子和DNA，并用液体氮将它们储存起来。如果某些物种灭绝了，将会有足够的基础建设材料再造这些物种。最后一段第二句“We're both trying to save animals that face extinction.”又一次提到了这个项目的目的，即拯救濒临灭绝的物种。故答案为B。

2. According to Professor Kraemer, ________.

A. the long time lasting cloning research could be successful.

B. the eggs transfers immediately result in having a baby.

C. the lack of nuclear transfer could be a major problem to have new pandas.

D. if species should die out, basic building blocks would heal them.

答案解析：答案为A。本题为推理题。由倒数第二段第一句话“…but the lack of a vailable panda eggs could be a major problem”可知，C选项错误。由该段第二句话“They will probably have to do several hundred transfers to result in one pregnancy (having a baby).”可知，B选项错误。由该段第三句话“It takes a long time and it's difficult, but this could be groundbreaking s cience if it works.”可知，这（细胞核移植）需要很长时间，而且难度很大，但是一旦成功，便会成为开创性的科学。言外之意就是长期的克隆研究技术或许能成功。故A选项正确。

第二段提到“If certain species should become extinct, …there would be enough of the basic building blocks to reintroduce the species in the future.”，而 D选项“如果物种灭绝，基础建设材料将治愈他们”夸大了基础建设材料的作用，与原文不符，故错误。

3. The best title for the passage may be_________.