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    D.细节题.根据文章第 4 段第 2 句 This is mainly because many parents know little or nothing about the good points of the resinous glasses 可推知此题答案为 D. (18) With only about 1, 000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species. That’s similar to what Texas A＆M University researchers have been undertaking for the past five years in a project called “Noah’s Ark . Noah’s Ark is aimed at collecting eggs, embryos, semen and DNA of endangered animals and storing them in liquid nitrogen(氮). If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A＆M’S College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future. It is estimated that as many as 2, 000 species of mammals, birds and reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years. Chinese scientists said they grew an embryo introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal. The entire procedure could take from three to five years to complete. “The nuclear transfer of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem, Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy. It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort, adds Kraemer, who is one of the leaders of the Project at Texas A＆M, the first-ever attempt at cloning a dog. “They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed. 【查看更多】

     

    题目列表(包括答案和解析)

    The number of speakers of English in Shakespeare’s time is estimated(估计) to have been about five million. Today it is estimated that some 260 million people speak it as a native language, mainly in the United States, Canada, Great Britain, Ireland, South Africa, Australia and New Zealand. In addition to the standard varieties of English found in these areas, there are a great many regional and social varieties of the language as well as various levels of usage that are employed both in its spoken and written forms.

    In fact, it is impossible to estimate the number of people in the world who have acquired an adequate(足够的) working knowledge of English in addition to their own languages. The purpose for English learning and the situations in which such learning takes place are so varied that it is difficult to explain and still more difficult to judge what forms an adequate working knowledge for each situation.

    The main reason for the widespread demand for English is its present-day importance as a world language. Besides serving the indefinite needs of its native speakers, English is a language in which some of important works in science, technology, and other fields are being produced, and not always by native speakers. It is widely used for such purposes as meteorological and airport communications, international conferences, and the spread of information over the radio and television networks of many nations. It is a language of wider communication for a number of developing countries, especially former British colonies. Many of these countries have multilingual populations and need a language for internal communication in such matters as government, commerce, industry, law and education as well as for international communication and for entrance to the scientific and technological developments in the West.

    1.What would be the best title for this passage?

    A．The Difficulties of Learning English

    B．International Communications

    C．The Standard Varieties of English

    D．English as a World Language

    2.Which of the following statements is NOT true?

    A．Some 260 million people in the world have an adequate working knowledge of English.

    B．There are some 260 million native speakers of English in the world.

    C．It is almost impossible to estimate the number of people with an adequate working knowledge of English.

    D．People learn English for a variety of reasons.

    3.According to the passage, what is the main reason for the widespread use of English?

    A．It was popular during Shakespeare’s time.

    B．It is used in former British colonies.

    C．It serves the needs of its native speakers.

    D．It is a world language that is used for international communication.

    4.What forms an adequate working knowledge of English?

    A．The ability to read a newspaper.

     

    B．It is difficult to judge because it differs for each situation.

     

    C．Being able to speak several languages.

    D．Being a native speaker.

    5.What type of developing countries would be most likely to use English?

    A．Those geographically close to the United States.

    B．Those interested in the culture of the United States.

    C．Former colonies of Great Britain.

    D．Countries where international conferences are held.

    6.C。细节题。根据文章最后一段倒数第2句可推知此题

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