(安徽省马鞍山二中2009届高三第四次模拟考试A篇)
56. This passage most probably is a (n) _____.
A. advertisement B. news story
C. lab report D. letter of thanks
57. From the passage we learn that Mindle is a device（设备） which _____.
A. has neither wires nor weight B. is operated by a computer
C. disappears while you read D. can find a book within one minute
58. With the device, the reader is able to _____.
A. enjoy reading when driving a car B. improve reading skills
C. gain access to free software D. get rid of heavy books made of paper
59. Different from mobile phones, Mindle _____.
A. has a much more friendly screen B. can work in the absence of electricity
C. doesn’t involve regular fees D. is wireless and can be used anywhere
科目：高中英语 来源： 题型：阅读理解
(安徽省马鞍山二中2009届高三第四次模拟考试D篇)
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 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 endangered animals and storing them in liquid nitrogen. If certain species should become extinct(灭绝), 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(移植) the embryo into a host animal.
The entire procedure（程序） 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 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.”
69. 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
70. 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
71. From the passage we know that _______.
A. Kraemer and his team have succeeded in cloning a dog
B. scientists try to implant(移植) a panda’s egg into a rabbit
C. Kraemer will work with Chinese scientists in clone researches
D. about two thousand of species will probably die out in a century
72. Which of the following should be the best title for the passage?
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.
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com
