填空题 The police have sent out a detailed description _________ the missing woman.

填空题Farm-raised pigs are dirty, smelly animals that get no respect. They’re also an environmental hazard. Their manure contains phosphorus, which, when it rains, runs off into lakes and estuaries, depleting oxygen, killing fish, stimulating algae overgrowth and emitting greenhouse gases. 41. ______. Pigs provide more dietary protein, more cheaply, to more people than any other animal. Northern Europe still maintains the highest pig-to-human ratio in the world (2-1 in Den- mark), but East Asia is catching up. During the 1990s, pork production doubled in Vietnam and grew by 70 percent in China— along densely populated coastlines, pig density exceeds 100 animals per square kilometer. The resulting pollution is “threatening fragile coastal marine habitats including mangroves, coral reefs and sea grasses,” according to a report released in February by the Food and Agriculture Organization of the United Nations. As it turns out, there is a solution to the pig problem, but it requires a change of mind-set among environmentalists and the public. 42. ______. The Enviropig is one of many new technologies that are putting environmentalists and organic-food proponents in a quandary: should they remain categorically opposed to genetically modified (GM) foods even at the expense of the environment? 43. ______. The most significant GM applications will be ones that help alleviate the problem of agriculture, which accounts for 38 percent of the world’s landmass and is crowding out natural ecosystems and species habitats. GM crops that can be produced more efficiently would allow us to return land to nature. 44. ______. U.S. Department of Agriculture scientist Eliot Herman has already created a less-allergenic soybean — an important crop for baby foods. Through genetic surgery, Herman turned off the soy gene responsible for 65 percent of allergic reactions. Not only was the modified soy less allergenic in tests but, as Herman explained, “the yield looks perfectly normal, plants develop and grow at a normal rate and they seem to have the same kinds of protein, oil and other good stuff in them.” Other scientists have reported promising results in shutting off allergy-causing genes in peanuts and shrimp. Should these advances be turned into products, organic soy or peanut products will be certifiably more dangerous to human health than comparable nonorganic products.45. ______. In this climate, much of the needed research isn’t being pursued. Chances are, farmers will continue to grow their polluting organic pork, their allergenic organic soy and their neurotoxin-sprayed organic apples. Worse still, they will make sure that no one else gets a choice in the matter of improving the conditions of life on earth — unless, that is, others rise up and demand an alternative.[A] Two Canadian scientists have created a pig whose manure doesn’t contain very much phosphorus at all. If this variety of pig were adopted widely, it could greatly reduce a major source of pollution. But the Enviropig, as they call it, is the product of genetic modification — which is anathema to many Westerners.[B] In fact, although all commonly used pesticides dissipate so quickly that they pose a miniscule health risk to consumers, allergic food reactions to natural products kill hundreds of children each year. Genetically modified foods could greatly reduce this risk.[C] Canadian biologists Cecil Forsberg and John Phillips, for instance, have constructed a novel DNA molecule that, when planted in a pig embryo, imbues the Enviropig with the ability to secrete a phosphorus extracting enzyme in its saliva. The results so far are dramatic — the new pigs can extract all the phosphorus they need from grain alone, without the phosphorus supplements that farmers now use. This reduces the phosphorus content of their manure by up to 75 percent.[D] Doing away with the pig is not an option.[E] Pigs can also be modified to digest grasses and hay (as cows and sheep do), reducing the energy-intensive use of corn as pig feed. Elsewhere, trees grown for paper could be made amenable to much more efficient processing, reducing both energy usage and toxic chemical bleach in effluents from paper mills.[F] Of course, stringent testing is needed to show that a genetic modification works and that the product is not harmful to humans. Scientists can do both of these things with techniques that allow them to examine and compare the structure and activity of every one of an animal’s genes.[G] Unfortunately, this won’t happen any time soon. Because no society has ever banned allergenic foods, conventional farmers have no incentive to plant reduced-allergy seeds. And many members of the public have been led to believe that all genetic modifications create health risks.

填空题We think it is an important matter and expect there being more discussions.

填空题(To many early Americans), chicken on the table represented fancy (civilized) food and suggested (that) a farmer and his wife (has found) prosperity. A. To many early Americans B. civilized C. that D. has found

填空题Customer: Excuse me, but can I draw on my account for payment of things I buy in China ? Clerk: Certainly, sir. ______

填空题和远方的朋友保持联系不是一件容易的事。

填空题A. How old are theyB. What does he doC. and brothersD. but no brothersE. What do they doF. is studyingG. Does she workH. She is a lawyer Tom: So, tell me about your family. Have you got any brothers or sisters? Barbara: Yeah. I've got three sisters (56) . Tom: Three sisters. (57) ? Barbara: Well, the oldest is twenty-three. The second oldest is twenty-one, and the youngest is nineteen. Tom: And what do they do? Barbara: The oldest one has two children, and they keep her pretty busy. The second oldest, is in college like me. She (58) computer science. And the other one is still in high school. Tom: And what about your dad? (59) ? Barbara: Oh, he’s a lawyer. Tom: Oh, really?. And your mom? (60) , too? Barbara: Yeah, she’s a journalist. She works for a travel magazin

填空题Bob: The boss won't be here today. Let's have a party.Alice: ______.

填空题Honesty is an important ______ (elementary) for being a person.

填空题I really appreciate you recommended me to that company in time .

填空题Student life at American universities is chaotic during the first week of each quarter or semester. Registering for classes, becoming familiar (51) the buildings (52) campus, (53) books, adding and dropping classes, and (54) fees are confusing for everyone. During this busy period there is little time for students to anticipate (55) they will later encounter in the classroom. International students, (56) to their countries' educational expectations, must adapt (57) new classroom norms in a foreign college or university. Whereas in one country prayer may be acceptable in a classroom, in another it may be (58) . In some classrooms around the world students must humbly obey their teacher's commands and remain absolutely silent during a class period. In (59) , students may talk, eat and smoke during lectures as (60) as criticize a teacher's methods or contradict his or her statements. It is not always easy to understand a new educational system. There is considerable variety in university classrooms in the United States. Because of diverse teaching methods and non-standardized curricula, no two courses are (61) . Undergraduate courses are considerably different from graduate courses. The classroom atmosphere in expensive, private universities may differ from (62) in community college s (63) are free and open to everyone. State-funded universities have different requirements and expectations than (64) parochial colleges. (65) , there are shared features in American college and university classrooms (66) the diversity of educational institutions of higher learning. Participation (67) the classroom is not only accepted but also expected of the student in many courses. Some professors base part of the final grade (68) the student's oral participation. Although there are formal lectures during (69) the student has a passive role(i, e. , listening and taking notes), many courses are organized around classroom discussions, student questions, and informal lectures. In graduate seminars the professor has a "managerial" role and the students (70) presentations and lead discussions. The students do the actual teaching in these seminars.

填空题When he was in high school, hardly anyone did scientific experiments, much less accepted training ________this respect

填空题The conceptualist view holds that there is no ________ link between a linguistic form and what it refers to

填空题Language is produced as a continuous stretch of speech or writing, but one can still find pauses and blanks every now and then

填空题（  ） 

填空题The smart boy answered every question ______ (intelligence).

填空题A. What about making it a little earlier?B. I have no idea.C. Let's go together.D. Thank you all the same.E. Do you like basketball?F. When and where shall we meet?G. It doesn't matter?H. What are you going to do?A: What do you plan to do this weekend?B: (61) A: I hear there's going to be a basketball match this Sunday. Tom and I are going to watch it. (62) B: Of course. Basketball is my favourite. But I have no ticket for the match. What a pity!A: You're lucky. I have some free tickets. (63) B: Great! (64) A: Let's meet at the bus stop at half past five.B: I think there must be a big crowd of people there. (65) A: OK. See you at five o'clock.B: See you.

填空题A. Ifs impossible.B. I suggest we go to the seaside.C. I'd like to tell you something.D. How about going to the art exhibition?E. I hope not.F. We'd better think of something else.G. I'm afraid.H. I'm very sorry to hear that. Tony: Do you have a plan for the coming holiday? Lucy: Yes. (56) . Tony: But what about it if the weather changes? Lucy: (57) . Well, you're right. (58) . Tony: (59) . It was said it is worth seeing. Lucy: Good idea. We ought to call Charlie before that. Otherwise he may go away. Do you think so? Tony: (60) . Anyway, it would be better to let him know beforehan

填空题In the 20th century the equipping of bathrooms became a separate industry with a wide variety of special forms of bathroom furniture and fixtures. The materials used are porcelain, enamel, plastic, wood and ______ steel. (stain)

填空题这群年轻人听了这则笑话哄堂大笑. (to roar with).