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(2020·大同市高三学情调研测试试题)China has become the first country to clone a monkey using non－reproductive cells, reducing the need to keep lab monkeys and paving the way for more accurate, effective, and affordable animal tests for new drugs.
By December of 2017, Chinese scientists had created two clone macaques named “Zhong Zhong” and “Hua Hua” by nuclear transfer of somatic cells—any cell in the organism other than reproductive cells. This was the similar technology used to create the famous clone sheep Dolly in 1996.
“Cloning a monkey using somatic cells has been a worldclass challenge because it is a primate (灵长类) that shares its genetic makeup with humans.” Pu Muming said.
“For drug and other lab tests, scientists have to purchase monkeys from all over the world, which is costly, bad for the environment and produces inaccurate results because each monkey might have different genes，” Pu said.
“By cloning monkeys using somatic cells, we can produce large numbers of genetically identical (相同的) offspring in a short time, and even change their genes to suit our needs，” he added. “This can save time, cut down experiment costs, and produce more accurate results, leading to more effective medicine.”
“This achievement will help China lead the world research in an international science project related to neural (神经的) mapping of primate brains，” he said. “However, biology labs from the United States, Japan, and European countries are also very able, and they will quickly catch up with China after the monkey cloning technology is made public，” Sun Qiang added. “This means we have to innovate continuously and work extra hard this year to stay ahead，” he said.
篇章导读：本文是一篇说明文。中国科学家使用非生殖细胞成功地克隆了猴子，成为世界上第一个使用非生殖细胞克隆灵长类动物的国家。这项科研成果为更准确、更有效、更经济的新药动物试验铺平了道路。
1．What is special about China's cloning monkey?
A．It transferred cells in the lab.
B．It creates two monkeys at a time.
C．It adopts a method of embryo splitting.
D．It uses non－reproductive cells.
答案：D 细节理解题。根据第一段中的“China has become the first country to clone a monkey using non－reproductive cells”可知，中国克隆猴的特别之处在于其使用了非生殖细胞，故D项正确。
2．Why do scientists clone monkeys?
A．To keep monkeys from being endangered.
B．To test new medicines on them.
C．To find the side effects of medicines.
D．To find a cure for mental diseases.
答案：B 推理判断题。根据第四段的内容以及第五段最后一句可知，使用克隆猴可以节约时间，缩减实验费用，产生更精确的结果，进而生产更有效的药物。据此可推知，科学家克隆猴子是为了在它们身上试用新药，故B项正确。
3．What Sun said in the last paragraph suggests ________.
A．they are determined to catch up with America
B．they try to avoid competition from other countries
C．they aren't satisfied with what they have achieved
D．they have to keep the monkey cloning technology a secret
答案：C 推理判断题。根据本文末句Sun说的话可知，Sun认为，他们必须不断创新，格外努力工作，以保持技术的先进性。据此可推知，他们并不满足于已取得的成就，故C项正确。
【词汇积累】 ①worldclass adj. 世界第一流水平的 ②offspring n. 幼崽；后代 ③innovate v. 创新；改革 ④genetic makeup 基因组成
【长难句分析】 China has become the first country to clone a monkey using non－reproductive cells, reducing the need to keep lab monkeys and paving the way for more accurate, effective, and affordable animal tests for new drugs.
中国成为世界上第一个使用非生产性细胞克隆猴子的国家，减少了对实验室猴子的饲养需求，为更准确、更有效、更经济的新药动物实验铺平了道路。
分析：这是一个简单句。to clone a money为不定式作后置定语修饰country，using non－productive cells为现在分词短语作方式状语， reducing the need to keep lab monkeys and paving the way for more accurate, effective, and affordable animal tests for new drugs为现在分词短语作结果状语。
