Cloning an animal is a complex that can go fatally wrong at any stage. A. process B. regulation C. step D. method 题目和参考答案——青夏教育精英家教网—

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Cloning an animal is a complex ________ that can go fatally wrong at any stage.

A. process B. regulation C. step D. method

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Have you seen Jurassic Park? In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and more dangerous than expected. That’s nothing more than a fiction.
But could we really clone endangered animals?
    To date, the most successful attempt to do so was the cloning of a gaur, a rare ox-like animal from southeast Asia. Scientists used a cow to bring the cloned baby gaur, named Noah. Two days after birth, however, Noah died from a common bacterial infection. Other endangered species that may be cloned include the African bongo antelope (邦戈羚羊), the Sumatran tiger, the cheetah (猎豹), and the giant panda.     Next, could we really clone extinct animals?
In theory? Yes. To do this, you need a well-kept source of DNA from the extinct animals such as wool mammoth (毛象), Tasmanian tiger, or even dinosaur, and a closely related species, still living, which could serve as a surrogate mother.
In reality? Probably not. On the one hand, it’s not likely that extinct animals’ DNA could survive undamaged for such a long time. Cloning extinct animals as wool mammoth, Tasmanian tiger, or dinosaur is much more difficult due to the lack of properly well-preserved DNA. On the other hand, for example, a gaur can have a cow as a surrogate mother, definitely not a monkey. But what about an extinct animals as unique as the panda? What species could possibly serve as a surrogate mother?
Cloning presents many exciting possibilities. However, even if extinct animals are brought back, they could not survive in today’s world. Not only do most extinct animals have no habitat to love in, but the other plants and animals they depended on for food may also be gone as well.
1. It can be learned from the text that ________.
A. scientists have cloned the African bongo antelope
B. both the cheetah and the giant panda live in Asia
C. the gaur lives in Asia and is endangered
D. the gaur is an extinct species
2. The underlined words “a surrogate mother” probably refer to a female who -----
A. contributes its eggs to another female  B. gives birth to a baby for another female
C. gives birth to a baby of its own        D. cannot give birth to a baby
3. The difficulty in cloning an extinct species is the lack of ______.
A. both the well-preserved DNA and plants to live on
B. both the habitat to live in and the well-preserved DNA
C. both habitat to live in and plants to live on
D. both the well-preserved DNA and a surrogate mother
4. In the author’s opinion, it is possible that ______.
A. some extinct species may be cloned, but not survive
B. extinct species may be cloned and easily survive
C. a gaur can have a monkey as a surrogate mother
D. all the extinct species may be cloned
5．Today , have scientists cloned dinosaus?
A .Yes    B .No    C .A lot D.Only one.

B
Rome-Doctors and medical groups around the world last weekend reacted with strong opposition to the news that an Italian specialist is on the point of cloning the first human baby．　　
Dr．Severino Antinori, who is the head of a hospital in Rome, has been referred to in an Arab newspaper as claiming that one of his patients is eight weeks pregnant （怀孕的）with a cloned baby．　　
Antinori refused to comment on the reports, but in March 2001 he said he hoped to produce a cloned embryo （卵）for implantation within two years．So far seven different kinds of mammals have already successfully cloned, including sheep, cats and most recently rabbits．　　
Doctors showed their doubt and were strongly opposed although they admit that human cloning would finally come true unless there was a world wide ban on the practice．　　
Professor Rudolf Jaenisch of the Whitehead Institute for Biomedical Research at the Massachusetts Institute of Technology said: “I find it astonishing that people do this where the result can be foretold that it will not be a normal baby．It is using humans as guinea pigs．It makes people feel sick．” But Ronald Green, director of the Ethics institute at Darmouth College in the US, said it is unlikely that an eight-week-old pregnancy would lead to a birth．　　
So far all cloned animals have suffered from some different serious disorders, many of them dying soon after their births ．　　
Doctors are opposed to human cloning because they are worried about the welfare of the cloned child if there is one．　　
“There are no benefits of cloned human beings, just harm,”said Dr．Michael Wilks of the UK．
45．What is the doctors’ general attitude to cloning of humans according to the passage?
A．They are against it．                    B．They support it．
C．They welcome it．                          D．They pay no attention to it．
46．Which of the following statements is true according to the passage?
　 A．Doctor Severino Antinori is strongly opposed to cloning human beings．
　 B．Up to now, seven kinds of animals have been cloned, including sheep, cats, humans and rabbits．
　 C．Professor Rudolf Jaenisch is carrying on an experiment on cloning an eight-week-old embryo．
　 D．Ronald Green doubts about the future successful birth of the so-called cloned embryo．
47．Which is the best title for the passage?
　 A．The Success of Cloning Humans           B．The Anger at Cloning Humans
　 C．Failure of Cloning Humans             D．First Cloned Human?

根据上下文及所给的首字母或汉语意思填写单词(每条横线上只能填写一个单词)
注意：给出首字母的词，需将首字母一起填写到答题卷上
【小题1】The m          of us voted for Mr. Red, who then became chairman of the committee.
【小题2】Remember, tasks are only a m           to an end; goals are that end.
【小题3】All efforts of cloning an animal will be in v           if there is not enough diversity in the group to overcome illnesses.
【小题4】Don’t b            him with that now; he is busy preparing for an exam.
【小题5】Is it c             for you to meet me at the airport next Monday afternoon?
【小题6】In a courtroom it is sometimes difficult to recognize who is i            and who is guilty.
【小题7】If I’m not m           , Colorful Clouds Chase the Moon is a Chinese song, not a Japanese one.
【小题8】Generally speaking, he thought that lower class people betrayed themselves with their r            whenever they spoke.
【小题9】The war i             the trade between the two countries.
【小题10】The book tells the story of Max, who behaves badly and is sent to his room without dinner as a ______________(惩罚).

根据上下文及所给的首字母或汉语意思填写单词(每条横线上只能填写一个单词)

注意：给出首字母的词，需将首字母一起填写到答题卷上

1.The m of us voted for Mr. Red, who then became chairman of the committee.

2.Remember, tasks are only a m to an end; goals are that end.

3.All efforts of cloning an animal will be in v if there is not enough diversity in the group to overcome illnesses.

4.Don’t b him with that now; he is busy preparing for an exam.

5.Is it c for you to meet me at the airport next Monday afternoon?

6.In a courtroom it is sometimes difficult to recognize who is i and who is guilty.

7.If I’m not m , Colorful Clouds Chase the Moon is a Chinese song, not a Japanese one.

8.Generally speaking, he thought that lower class people betrayed themselves with their r whenever they spoke.

9.The war i the trade between the two countries.

10.The book tells the story of Max, who behaves badly and is sent to his room without dinner as a ______________(惩罚).

Rome-Doctors and medical groups around the world last weekend reacted with strong opposition to the news that an Italian specialist is on the point of cloning the first human baby．　　

Dr．Severino Antinori, who is the head of a hospital in Rome, has been referred to in an Arab newspaper as claiming that one of his patients is eight weeks pregnant （怀孕的）with a cloned baby．　　

Antinori refused to comment on the reports, but in March 2001 he said he hoped to produce a cloned embryo （卵）for implantation within two years．So far seven different kinds of mammals have already successfully cloned, including sheep, cats and most recently rabbits．　　

Doctors showed their doubt and were strongly opposed although they admit that human cloning would finally come true unless there was a world wide ban on the practice．　　

Professor Rudolf Jaenisch of the Whitehead Institute for Biomedical Research at the Massachusetts Institute of Technology said: “I find it astonishing that people do this where the result can be foretold that it will not be a normal baby．It is using humans as guinea pigs．It makes people feel sick．” But Ronald Green, director of the Ethics institute at Darmouth College in the US, said it is unlikely that an eight-week-old pregnancy would lead to a birth．　　

So far all cloned animals have suffered from some different serious disorders, many of them dying soon after their births ．　　

Doctors are opposed to human cloning because they are worried about the welfare of the cloned child if there is one．　　

“There are no benefits of cloned human beings, just harm,”said Dr．Michael Wilks of the UK．

45．What is the doctors’ general attitude to cloning of humans according to the passage?

A．They are against it． B．They support it．

C．They welcome it． D．They pay no attention to it．

46．Which of the following statements is true according to the passage?

　 A．Doctor Severino Antinori is strongly opposed to cloning human beings．

　 B．Up to now, seven kinds of animals have been cloned, including sheep, cats, humans and rabbits．

　 C．Professor Rudolf Jaenisch is carrying on an experiment on cloning an eight-week-old embryo．

　 D．Ronald Green doubts about the future successful birth of the so-called cloned embryo．

47．Which is the best title for the passage?

　 A．The Success of Cloning Humans B．The Anger at Cloning Humans

　 C．Failure of Cloning Humans D．First Cloned Human?

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