人教新课标版高二选修8 Unit2 Cloning Reading ppt课件2.pptVIP

At first, the fact that Dolly developed ______ and _________ produced a lamb in a natural way was __________. Later, the news _____she lived for six years, half the length of the life of the ______ one was __________. Finally, the problem that occurred to the scientists was that a cloned animal lives_____________ the original one. The word “controversial” in para 4 probably means ____________. A. complicated B. arguable C. important True or false: 1 People feared that Cloned Hitlers would do harm to the world. 2 All the research into human beings will be forbidden. 3 Some countries will use cloning in a wise way. A. Positive (be in favor of it) B. Negative (be against it) C. Objective 1. The main idea of the text is____ A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden. C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not sure about its future. 2.Dolly the sheep_____. looked exactly like the sheep that provides the egg. was the exact copy of the sheep that provides the nucleus. C. looked like the sheep that gave birth to it. D. had the characteristics of all three sheep. 3. It can be inferred from the passage that a cloned animal_____.A. usually lives as long as the original oneB. usually lives longer than the original oneC. usually lives shorter than the original one D. is usually as healthy as the original one 4. Which of the following is not an advantage of cloning? Cloning can be used for medical purposes. Large quantities of food can be produced by cloning. Cloning can help keep animals from becoming extinct. People can clone themselves at will. 5. What is people’s fear about human cloning? Which of the follo