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A recent announcement by scientists that they have successfully cloned the first human embryo has caused much debate and has shocked many people around the world. On the one hand，some scientists point out that if you clone an embryo，you can produce valuable tissues(组织）and organs that could be used to save human lives. On the other hand，many people，including some scientists, disagree and fear that if mankind interferes with（干涉）nature in this way，they may be on their way to producing a real-life Frankenstein’s monster.
Cloning is producing an exact copy of a plant or an animal using its cells. The first mammal to be cloned successfully from an adult cell was Dolly the sheep. She was born in 1996 and died in early 2003，at a much younger age than normal. When she was born，many people were angry because they thought cloning would create more disease in the animal world. However，in general the scientists were praised for their wonderful scientific breakthrough.
The Scottish scientist who created Dolly，Ian Wilmut，is shocked that some scientists are now considering cloning human beings. Although he researches cloning，his intention has never been to create copies of humans. Instead，he thinks research efforts should concentrate on creating new tissues and organs that could eventually be used to cure diseases like cancer. However，some people consider that cloning human embryos with the intention of destroying them shows no respect for human life.
While cloning human embryos is illegal in many countries，some scientists are already pushing ahead with research so as to deliver a cloned human baby. Severino Antinori，an Italian doctor，is one of the leaders in this kind of research. He has declared that he wants to be the first to clone a human being.
In China，scientists have focused their efforts on cloning animals，as well as stern cells to be used in medical research. China has succeeded in producing clones of cows and goats，and continues to research ways in which cloning can benefit mankind.
51. Which of the following statements about cloning is TRUE according to the passage?
A. Cloning technology can only be applied to animals.
B. A cloned animal can live longer than a normal one.
C. People all over the world are happy about the birth of Dolly.
D. Cloning can produce valuable tissues and organs to cure human diseases.
52. The reasons why people are anti-cloning include the following EXCEPT that_______.
A. cloning may produce a real-life Frankenstein’s monster
B. cloning might create more disease in the animal world
C. cloning can’t help those who want to clone their dead children
D. cloning human embryos shows no respect for human life
53. Who is in favor of cloning human beings?
A. Ian Wilmut. B. Severino Antinori.
C. The author. D. The Chinese scientists.
54. What can be inferred from the last two paragraphs?
A. If we interfere with nature, we will change the world to be what we want.
B. It is impossible to clone babies for women who cannot have ones.
C. Cloning human beings is illegal in many countries，so no scientists want to do so.
D. Whether cloning human embryos is legal or not remains a matter of debate.
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The recent death of the world's most famous sheep--Dolly the clone--has not dampened（使沮丧）the enthusiasm（热情）of Chinese scientists, who are working hard to make more breakthroughs（突破）in clone technology.
“It is hard to say whether Dolly died at a relatively young age or died from defects（缺陷）in reproduction.”Du Miao, a researcher with the Biology and Growth Institute of the Chinese Academy of Sciences, told China Daily in Beijing yesterday.“But Dolly's case reminds us that both Chinese and foreign scientists should put more efforts into improving clone technology as well as disease treatment techniques in the field of cloning animals.” He said his institute, in co operation（合作）with Yangzhou University in Eastern China's Jiangsu Province, had cloned more than 10 sheep since 1999 and the oldest is nearly five. They are all still alive.
Li Ning, deputy（代表）director of the National Key Laboratory of Agricultural and Biological Technology, who is also a professor with the Beijing Based China Agriculture University, said, “Clone technology is actually progressing well. Dolly is the first cloned sheep after all. Like driving cars, new drivers meet with accidents more easily, but the more you drive, the easier and safer you feel. In the future, the death rate of cloned animals will be reduced with technological developments.”
“Official reports show seven locally cloned sheep are still alive. Clone technology in China is gradually approaching（接近）a level of commercialization（商业化）,”Li added. But Wang Yu, deputy（代表）director of the Biological Technology Centre under the Ministry of Science and Technology, said the commercialization of clone technology depends on market demand.
(1) Which of the following statements is ture?
[ ]
A．Some Chinese scientists believe Dolly died from defects in reproduction.
B．Some Chinese scientists think Dolly's death has dampened their enthusiasm.
C．Some Chinese scientists are satisfied with their successes in clone.
D．Some Chinese scientists think they should improve not only disease treatment techniques but also clone technology.
(2) What's Li Ning's purpose to take driving cars for example?
[ ]
A．To tell the people clone technology was too difficulty in the past.
B．To show clone technology is difficult in the beginning and has a bright future.
C．To show clone technology will be more difficult in the future.
D．To tell people Chinese scientists met too much difficulty in the beginning.
(3) From the passage, we can know _____.
[ ]
A．the Chinese clone technology is behind some other countries
B．the Chinese scientists learn lessons from Dolly
C．the Chinese clone technology is Well Developed
D．the Chinese clone technology is actually developing well
(4) The underlined word“case”in the second paragraph means ______.
[ ]
“It is hard to say whether Dolly died at a relatively young age or died from defects (缺陷) in reproduction,” Du Miao, a researcher with the Biology and Growth Institute of the Chinese Academy of Sciences, told China Daily in Beijing yesterday. “But Dolly's case reminds us that both Chinese and foreign scientists should put more efforts into improving clone technology as well as disease treatment techniques in the field of cloning animals.” He said his institute, in co-operation (合作) with Yangzhou University in Eastern China's Jiangsu Province, had cloned more than 10 sheep since 1999 and the oldest is nearly five. They are all still alive.
Li Ning, deputy director of the National Key Laboratory of Agricultural and Biological Technology, who is also a professor with the Beijing-based China Agriculture University, said, “Clone technology is actually progressing well. Dolly is the first cloned sheep after all. Like driving cars, new drivers meet with accidents more easily, but the more you drive, the easier and safer you feel. In the future, the death rate of cloned animals will be reduced with technological developments.”
“Official reports show seven locally cloned sheep are still alive. Clone technology in China is gradually approaching (接近)a level of commercialization (商业化),” Li added. But Wang Yu, deputy director of the Biological Technology Centre under the Ministry of Science and Technology, said the commercialization of clone technology depends on market demand.
1. From Dolly's death, some of the Chinese scientists________.
A. think it has dampened their enthusiasm
B. believe it died from defects in reproduction
C. think they should improve not only disease treatment techniques but also clone technology
D. are satisfied with their successes in clone
2. Li Ning took driving cars for example to show________.
A. the difficulty with clone technology
B. anything is difficult in the beginning
C. clone technology is difficult in the beginning and has a bright future
D. clone technology will be more difficult in the future
3. According to Li Ning, the Chinese clone technology is________.
A. behind some other countries
B. progressing badly
C. among the developed countries
D. actually developing well
4. What is the best title for the passage?
A. Learning Lessons from Dolly
B. Chinese Scientists’ Clone Enthusiasm
C. Clone Technology like Driving Cars
D. Chinese Clone Technology Well Developed
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The recent death of the world's most famous sheep－Dolly the clone—has not dampened the enthusiasm (热情)of Chinese scientists, who are working hard to make more breakthroughs in clone technology.
“It is hard to say whether Dolly died at a relatively young age or died from defects (缺陷) in reproduction,” Du Miao, a researcher with the Biology and Growth Institute of the Chinese Academy of Sciences, told China Daily in Beijing yesterday. “But Dolly's case reminds us that both Chinese and foreign scientists should put more efforts into improving clone technology as well as disease treatment techniques in the field of cloning animals.” He said his institute, in co-operation (合作) with Yangzhou University in Eastern China's Jiangsu Province, had cloned more than 10 sheep since 1999 and the oldest is nearly five. They are all still alive.
Li Ning, deputy director of the National Key Laboratory of Agricultural and Biological Technology, who is also a professor with the Beijing-based China Agriculture University, said, “Clone technology is actually progressing well. Dolly is the first cloned sheep after all. Like driving cars, new drivers meet with accidents more easily, but the more you drive, the easier and safer you feel. In the future, the death rate of cloned animals will be reduced with technological developments.”
“Official reports show seven locally cloned sheep are still alive. Clone technology in China is gradually approaching (接近)a level of commercialization (商业化),” Li added. But Wang Yu, deputy director of the Biological Technology Centre under the Ministry of Science and Technology, said the commercialization of clone technology depends on market demand.
1. From Dolly's death, some of the Chinese scientists________.
A. think it has dampened their enthusiasm
B. believe it died from defects in reproduction
C. think they should improve not only disease treatment techniques but also clone technology
D. are satisfied with their successes in clone
2. Li Ning took driving cars for example to show________.
A. the difficulty with clone technology
B. anything is difficult in the beginning
C. clone technology is difficult in the beginning and has a bright future
D. clone technology will be more difficult in the future
3. According to Li Ning, the Chinese clone technology is________.
A. behind some other countries
B. progressing badly
C. among the developed countries
D. actually developing well
4. What is the best title for the passage?
A. Learning Lessons from Dolly
B. Chinese Scientists’ Clone Enthusiasm
C. Clone Technology like Driving Cars
D. Chinese Clone Technology Well Developed
查看习题详情和答案>>