9．Scientists in Argentina have created the world's first cow with two human genes that will enable it to produce human-like milk．
Genetic engineering was used to introduce the"mothers'milk"genes into the animal before birth，according to the National Institute of Agribusiness Technology in Buenos Aires．
As an adult，the cloned cow"will produce milk that is similar to that of humans"，which will prove"a development of great importance for the nutrition of infants（婴儿）"，said the institute．"The cloned cow，named Rosita ISA，is the first in the world with two human genes that contain the proteins present in human milk，"said the statement．
In April，scientists in China published details of research showing that they had created dairy cows which produced milk containing proteins found in human breast milk．But the Argentine team said the Chinese only introduced one human gene，while their research involved two，meaning the milk will more closely resemble that of humans．
"Our goal was to raise the nutrition value of cows'milk by adding two human genes，which do good to the immune system of infants，"said Adrian Mutto，from the National University of San Martin which worked with the institute．
Cristina Kirchner，President of Argentina，said that the scientific institute made all Argentines proud．She also said that she had rejected the"honor"of having the cow named after her．"They came to tell me that the name is Cristina，but what woman would like to have a cow named after her？It appeared to me to be more proper to call it Rosita．"
25．What is the passage mainly about？C
A．The importance of genetic engineering．
B．Ways to improve mothers'milk．
C．A cloned cow to produce human-like milk．
D．Advanced agricultural technology in Argentina．
26．Which of the following can best replace"more closely resemble"in Paragraph 4？B
A．have more varieties than
B．be more similar to
C．have more nutrition than
D．be more different from
27．What can be inferred from Cristina Kirchner's statements？A
A．She was quite satisfied with the research done by the institute．
B．She considered it an honor to name the special cow．
C．She felt it improper to be named after the cow．
D．She refused to give a name to the cow out of self-respect．
分析 这是一篇新闻报道，属记叙文体裁，介绍了阿根廷通过添加人类基因的方式培育出了"类人乳"牛．
解答 25．C．主旨大意题．根据科技新闻报道的特点，在文章第一段就会出现文章主题句，即 Scientists in Argentina have created the world's first cow with two human genes that will enable it to produce human-like milk．即可得出正确结论，阿根廷通过添加人类基因的方式培育出了"类人乳"牛，故选C．
26．B．词义猜测题．第四段内容介绍了中国培育了加入一个人类基因的牛可以被认为"human-like"，那么阿根廷加入两个，足见是"更接近人乳"了，故选B．
27．A．推理判断题．女总统的话the scientific institute"makes all Argentines proud"说明C 正确，她很满意研究所的作为．A中说她认为给牛命名是一种荣耀，并未提及．最后一段，只要明确name和name after区别即可．be named after her 是以她的名字命名，而be named after the cow是以牛的名字命名；显然B是错误的，而D中give a name to the cow是给牛起名的意思，故A不对．
点评 本文是一个科教类阅读理解，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
