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Passage 3
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 researcher has been undertaking for the past five years in a project called Noah’s Ark.
Dr. Duane Kraemer, a professor in Texas A&M's College of Veterinary Medicine and a pioneer in embryo transfer work and related procedures, says he salutes the Chinese effort and I wish them all the success possible. It’s a worthwhile project, certainly not an easy one, and it’s very much like what we’re attempting here at Texas A&M-to save animals from extinction.
Noah’s Ark is aimed at collecting eggs, embryos, semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Kraemer 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 over the next 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, 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. 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 Missyplicity 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 applaud 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. implant embryo into a host animal
B. salute the Chinese efforts in saving pandas
C. save endangered animals from extinction
D. introduce cells from a dead female panda into the egg cells of Japanese white rabbit
【答案】C。细节题。根据题干关键词aim和Noah’s Ark定位至首段第一句…China is desperately trying to clone the animal and save the endangered species. That’s a move similar to…in a project called Noah’s Ark可知这个项目的目的是为了拯救濒临灭绝的动物,选项C正确。选项ABD均是文中的细节内容,故正确答案是选项C。
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
【答案】B。细节题。根据题干的关键词how long和Chinese panda cloning project定位至第六段The entire procedure could take from three to five years to complete.可知该项目会耗时3-5年,故选项B正确。
3.The word groundbreaking (Paragraph 7) can be interpreted as ( ).
A. essentially new
B .pioneering
C. evolutionary
D. epoch-making
【答案】D。含义题。根据所划线词定位至第七段,在其所处的句子中发现,该句子说“这一工程耗时长、难度大,但是一旦成功,那将会是......”,根据这句话,我们可以推断出划线词的含义与选项D是一致的,表示“划时代、意义重大”。故正确答案是选项D。
4.What could be the major problem in cloning pandas according to Professor Kraemer? ( )
A. Lack of available panda eggs.
B. Lack of host animals.
C. Lack of qualified researchers.
D. Lack of funds.
【答案】A。细节题。根据题干关键词major problem和professor Kraemer可以定位至第七段第一句话The nuclear transfer of one species to another is not easy, and the lack of available panda eggs could be a major problem可知A选项正确。选项B:缺少宿主动物;选项C:缺少合格的研究员;选项D:缺少资金,这三个选项文中均为提及,错误。故正确答案是选项A。
5.The best title for the passage may be ( ).
A. China-the Native Place of Pandas Forever
B. China’s Efforts to Clone Pandas
C. China’s First Cloned Panda
D. Exploring the Possibility to Clone Pandas
【答案】B。主旨题。题干让给文章找出合适标题,那么这个标题应当是文章的主旨大意。根据对文章的浏览,可知选项B更贴近文意。选项A:中国永远是熊猫的生存地;选项C:中国的第一只克隆大熊猫;选项D:寻找克隆大熊猫的可能性,均与文章所讲述的内容相悖。故正确答案是选项B。