单选题 Before the nineteenth century, scientists with an interest in the sea were few and far between. Certainly Newton considered some theoretical' aspects of it in his writings, but he was {{U}} {{U}} 1 {{/U}} {{/U}}to go to sea to {{U}} {{U}} 2 {{/U}} {{/U}}his work. For most people the sea was {{U}} {{U}} 3 {{/U}} {{/U}}, and with the {{U}} {{U}} 4 {{/U}} {{/U}}of early international travelers or others who earned a living from the sea, there was little reason to ask many questions about it, {{U}} {{U}} 5 {{/U}} {{/U}}alone to ask what lay beneath the surface. The flint time that the question "What is at the bottom of the oceans?" had to be answered with any commercial {{U}} {{U}} 6 {{/U}} {{/U}}was when the {{U}} {{U}} 7 {{/U}} {{/U}}of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile of the {{U}} {{U}} 8 {{/U}} {{/U}}to estimate the length of cable that had to be {{U}} {{U}} 9 {{/U}} {{/U}}. It was {{U}} {{U}} 10 {{/U}} {{/U}}Maury of the US Navy {{U}} {{U}} 11 {{/U}} {{/U}}the Atlantic Telegraph Company turned, in 1853, {{U}} {{U}} 12 {{/U}} {{/U}}information on this matter. The cable was laid, but not until 1866 {{U}} {{U}} 13 {{/U}} {{/U}}the connection made {{U}} {{U}} 14 {{/U}} {{/U}}and reliable. At the early {{U}} {{U}} 15 {{/U}} {{/U}}, the cable failed and when it was taken out for repairs {{U}} {{U}} 16 {{/U}} {{/U}}was found to be covered in living {{U}} {{U}} 17 {{/U}} {{/U}}, a fact which {{U}} {{U}} 18 {{/U}} {{/U}}contemporary scientific opinion {{U}} {{U}} 19 {{/U}} {{/U}}there was no life in the deeper parts of the sea. Within a few years oceanography was {{U}} {{U}} 20 {{/U}} {{/U}}way.

单选题Whatdowelearnfromtheconversation?A.Themanneedshelp.B.Themaniscomplaining.C.Themanlikeshisjob.D.Themanistalkingwithhisboss.

单选题WhatdoweknowabouttheAmsterdamAmericanHotelaccordingtothetalk?A.It'sneartheLeidsepleinSquare.B.Ithasaltogether175guestrooms.C.Itwasbuiltinthe19thcentury.D.Itslocationisverygood.

单选题 {{I}} Questions 5 to 7 are based on the following passage.{{/I}}

单选题To the writer, the fact that women alter their old-fashioned dress if seen as ______.

单选题Questions 22～25 are based on the following conversation.

单选题What do we learn from this passage about the visiting companies?

单选题 IQuestions 11-13 are based on the following dialogue./I

单选题Changes have come into museums. They are not places that one "should" go any longer but a place to get pleasure. If you go to a science museum in Canada, when harmless electricity passes through your body you can feel your hair stand on end. At the Children's Museum in New York, you can strike an African drum. In some other museums in the USA, "Do Not Touch" signs do not exist. It is realized by more and more museum directors that when becoming a part of what they are seeing, people get the best learning effect. Many science museums encourage visitors to touch, listen, operate as well as experiment in order that they can discover scientific rules by themselves. The intention of the change is not only to provide pleasure, but make people feel easy in the scientific world. Suppose you don't understand science, you will fear it; and when you fear science, you may not make the best use of it. The rise in wealth and spare time is one of the reasons for all these changes. Another reason is the increasing number of young people in the whole population. Among them are mainly college students or college graduates, with a new and totally different way of seeing the world. They want art which they can take part in. It's also true in science and history. Ancient museums have been changing and the government is encouraging to build new, modern museums. There are more than 6,000 museums in the United States and Canada, which are almost twice as it was 25 years ago.

单选题Where is this conversation probably taking place?

单选题Even today in the modern, developed world, surveys show that parents still prefer to have a boy rather than a girl. One longstanding reason why boys have been (26) as a greater blessing has been that they are (27) to ,become better economic providers (28) their parents' old age. Yet it is time for parents to (29) again. Girls may now be a better investment. Girls get better (30) at school than boys, and in most developed countries more women than men go to (31) . Women will thus be better (32) for the new jobs of the 21st century, in which brains (33) a lot more than physical strength. In Britain far more women than men are now (34) to become doctors. And women are more (35) to provide sound advice on investing their parents' nest egg. Surveys show that women consistently (36) higher financial returns than men do. (37) , the increase in female employment in the rich world has been the main (38) force of growth in the past couple of decades. Those women have (39) more to global GDP growth than have either new technology or the new giants, China and India. Add the (40) of housework and child-rearing, and women probably account (41) just over half of the world output. It is (42) that women still get paid less and few (43) it to the top o companies, but, (44) prejudice fades over coming years, women will have great scope to (45) their productivity and incomes.

单选题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 a move similar to what a Texas A&M University researcher has been undertaking for the past five years in a project called "Noah"s Ark." Dr. Duane Kraemer, a professor in Texas A&M"s College of Veterinary Medicine and a pioneer in embryo (胚胎) transfer work and related procedures, says he salutes the Chinese effort and "I wish them all the best success possible. It"s a worthwhile project, certainly not an easy one, and it"s very much like what we"re attempting here at Texas A&M — to save animals from extinction." Noah"s Ark is aimed at collecting eggs, embryos, semen (精子) and DNA of endangered animals and storing them in liquid nitrogen. If certain species should be come extinct, Kraemer 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 over the next 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years. This week, Chinese scientists said they grew an embryo by 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 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 Missy plicity Project at Texas A&M, the first ever attempt at cloning a dog.

单选题Withwhomisthemanspeaking?