2019学年度人教版选修八Unit 2CloningPeriod 1Reading学案作业(4页word版)
2019学年度人教版选修八Unit 2CloningPeriod 1Reading学案作业(4页word版)第3页

8. object to doing experiments

阅读理解

A 10-month-old baby boy died last year and his sad parents have vowed to give him a second chance of life. They've paid $500, 000 to have a company called Clonaid make a clone of their son. "We will do all that is possible to bring the twin of this boy back to life, "said Brigitte Boisselier, director of Clonaid.

Boisselier is not alone in her desire to duplicate (复制)a human. Another team of scientists recently announced that they, too, have begun a similar experiment. If either team is successful in copying a human being, it will be a truly earthshaking event.

In 1996, Scottish researcher Ian Wilmut created the world's first animal clone: a sheep named Dolly. First, he removed an egg cell from an adult female sheep. Then he used a fine needle to suck out the egg's nucleus. Next, Wilmut removed a somatic cell from another sheep-the sheep he wished to copy. He combined the two cells with a charge of electricity and got an egg from one animal that contained the DNA of another. The new egg cell divided and developed into an embryo (the first stage of a baby). Wilmut then implanted the embryo in the mother sheep. In time, the embryo developed into a sheep-Dolly.

Four years later, mice, cows, and goats have been"produced"in laboratories around the globe. Now, the race is on to produce the first human clone. Two scientific teams are publicly competing for the first place. Human cloning is"just around the corner, "said Zavos, a scientist of a team. "The genie (妖怪)is out of the bottle. "Clonaid's lab may be moved to another country because the U. S. Food and Drug Administration (FDA)has forbidden the lab's research.

Ⅰ. Skim the passage and find the main idea quickly.

This passage is about____________________________________________.

答案:the competition/race between two teams about the experiment of cloning humans

Ⅱ. Read the passage again and choose the best answer.

1. Which of the following statements is TRUE according to the passage?

A. Ian Wilmut will help to clone the first human in the world.

B. Ian Wilmut cloned the first animal with the help of electricity.

C. The two teams are working hard to realize the parents' dream.

D. The parents paid $500, 000 to have their son come back to life.

【解析】选B。细节理解题。根据第三段"He combined the two cells with a charge of electricity and. . . "可知B选项正确。

2. By saying"The genie is out of the bottle"in the last paragraph, the scientist means_______.

A. the first cloned human will look terrible

B. we don't know what the cloned human will be like

C. we aren't sure how to control the cloned human's behavior

D. there will be some harm we haven't imagined with human cloning

【解析】选D。句意理解题。结合该句的上下文可看出, 该句要表达的意思是: