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    精英家教网 > 高中英语 > 题目详情
    The United States government wants to know what the public thinks about its findings on the safety of cloned animals.
    The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat. An F.D.A. official called them "as safe to eat as the food we eat every day." And when those clones reproduce sexually（有性繁殖）, the agency says, their offspring（后代） are safe to eat as well. But research on cloned sheep is limited. So the F.D.A. proposes that sheep clones not be used for human food.
    The United States this year could become the first country to approve the sale of foods from cloned animals. First, however, the public will have ninety days to comment on three proposed documents. On December 28th the F.D.A. released a long report, called a draft risk assessment, along with two policy documents.
    The agency says it must receive comments by April second. The F.D.A. seemed ready to act several years ago, but an advisory committee called for more research.
    For now, the government will continue to ask producers to honor a request that they not sell foods from cloned animals.
    Clones are still rare. They cost a lot and are difficult to produce.
    The F.D.A. says most food from cloning is expected to come not from clones themselves, but from their sexually reproduced offspring. It says clones are expected to be used mostly as breeding animals to spread good qualities.
    Public opinion studies show most Americans do not like the idea of food from cloned animals. But this research also shows the public knows little about cloning.
    Cloning differs from genetic engineering. A cell taken from a so-called donor animals is grown into an embryo（胚胎）in the laboratory. Next, the embryo is placed into the uterus（子宫）of a female animal. If the process is successful, the pregnancy reaches full term and a genetic copy of the donor animal is born.
    小题1:From the passage we know that               .
    A．foods from cloned animals are popular in America
    B．cloned adult animals are safe to eat except sheep.
    C．cloned animals will be easy to produce
    D．most foods from cloning is expected to take place of other foods
    小题2:The main purpose of the text is to               .
    A．tell a interesting storyB．give some advice on foods
    C．give a reportD．compare different opinions
    小题3:Who believe that foods from cloning are safe to eat?
    A. Most Americans     B. An advisory committee
    C. Critics             D. The F.D.A.
    小题4:It can be inferred from the last paragraph that         .
    A．cloning has much in common with genetic
    B．not every cell taken from a donor animal can grow into a genetic copy
    C．the donor animal should be a female one
    D．cloned animals grow faster than normal ones

    小题1:B
    小题2:C
    小题3:D
    小题4:B

    小题1:推理判断题。从文中第二段可推出。
    小题2:主旨大意题。本篇文章是关于克隆食物的安全问题的报道。
    小题3:事实细节题。从“The Food and Drug Administration says meat and milk from clones of adult cattle, pigs and goats are safe to eat.…”可知。
    小题4:推理判断题。从最后一段“If the process is successful, the pregnancy reaches full term and a genetic copy of the donor animal is born.”可知答案。
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    ②    infrasound  n. 次声
    ③    vibration  n. 振动，颤动
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    B．Because the animals were able to run much faster than human beings.
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    科目：高中英语 来源：不详 题型：完形填空


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    科目：高中英语 来源：不详 题型：阅读理解

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    小题4:The best title for this passage is____．
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    科目：高中英语 来源：不详 题型：阅读理解

    Everyone becomes a little more forgetful as they get older, but men's minds decline more than women's, according to the results of a worldwide survey.
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    A．Men do better than women when it comes to learning English.
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    D．Women excel at dealing mathematic problems.
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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

    Doreen Sykora is now a junior at McGill University. She had a difficult time when she first began college. She said, “I was always well prepared for my examinations. But when I go into class to take the exam, I would fall apart. I could just blank out because of nervousness and fear.” Hitoshi Sakamoto, an anthropology(人类学) student at Temple University in Tokyo reports similar experiences.
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    For Hitoshi in Tokyo, the results were much the same. He is enjoying school a lot more and learning more.
    小题1:What is the similarity between Doreen Sykora and Hitoshi Sakamoto?
    A．They are students from the same university.
    B．They failed in all the examinations.
    C．They both had experiences of test anxiety.
    D．They both had the same poor studying habits.
    小题2:The phrase “blank out” in Paragraph 1 refers to “_______.”
    A．lose interest in the examB．refuse to take the exam
    C．get an extra paperD．be unable to think clearly
    小题3:What’s the purpose of some special university student-help courses?
    A．To help students to reduce test anxiety.
    B．To show a stress level experienced by students.
    C．To learn more knowledge about test anxiety.
    D．To have a better understanding of test anxiety.

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