4．Where can we probably read this passage?

　　A．In a science report.

　　B．In a storybook.

　　C．In an advertisement.

　　D．In a textbook.

　　答案：A　细节理解题。In a science report在科技报告上；In a storybook在故事书中；In an advertisement在一个广告中；In a textbook在课本中。通读全文，并根据文章介绍埃博拉病毒的研究进程判断选A。

　　B

　　(2015·长春市质量检测二)

　　Scientists in Argentina have created the world's first cow with two human genes that will enable it to produce human­like 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 humans” in what 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 that incorporates two human genes that contain the proteins present in human milk，” said the statement.

　　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 the infants.” said Adrian Mutto, from the National University of San Martin which worked with the institute.

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