单选题When buying food, consumers are usually in a hurry, so they don't often______ descriptions for motivating them to make a choice.

单选题{{B}}Text 3{{/B}} Within 80 years, some scientists estimate, the world must produce more than eight times the present world food supply. The productiveness of the sea raises our hopes for an adequate food supply in the future. Aided by men of science, we have set forth to find out that 70 percent of the earth remains unexplored the ocean depths. Thus, we may better discover and utilize the sea's natural products for the world's hungry. It is fish protein concentrate that is sought from the seas. By utilizing the unharvested fish in United States waters alone, enough fish protein concentrate can, be obtained to provide supplemental animal protein for more than one billion people for one year at the cost of less than half a cent per day per person. The malnutrition of children is terribly tragic. But the crime lies in society's unrestrained breeding, not in its negligence in producing fish powder. But wherever the population projects are carefully considered, the answer to the problem is something like this: There are few projects that could do more to raise the nutritional level of mankind than a full-scale scientific effort to develop the resources of the sea. Each year some thirty million tons of food products are taken from the sea, which account for 12 percent of the world's animal proteins. Nations with their swelling populations must push forward into the sea frontiers for food supplies. Private industry must step up its marine research and the federal government must make new attacks on the problems of marine research development. There is a tone of desperateness in all these designs on the sea. But what is most startling is the assumption that the seas are an untouched resource. The fact is that the seas have been, and are being, hurt directly and indirectly, by the same forces that have abused the land. In the broad pattern of ecological relationships the seas are not separable from what happens on the land. The poisons that pollute the soil and the air bring in massive doses into the "continental shelf" waters. The dirt and pollution that spills from our urban sewers and industrial out falls despoil our bays and coastal waters. All the border seas are already heavily polluted by the same exploitation drives that have undermined the quality of life on land.{{B}}Notes:{{/B}} sewers 下水道。

单选题The overall development of the passage can best bc described as ______.

单选题The text mainly tells us about

单选题Americans live in a style-conscious culture even elementary school children know the difference between Air Jordans and the cheaper imitations. By the time they enter junior high school, most American adolescents are already highly skilled at distinguishing between brand names. The real lesson young Americans learn is that they live in a world where it matters what brand of clothes or furniture or car they buy. It matters what style of music they listen to, how they wear their hair, whether they"re tattooed or pierced, and what kind of food they like to eat. Even everyday use—objects from staplers to tooth brushes to laptop computers matter too. In many ways, it seems that such a concern for personal style and the appearance of objects is shallow and trivial. After all, what does it really matter whether or not someone"s clothes or music or computer is at the cutting edge of style? Why should anyone care? One reason is that style is a guide to economic and social class in America Style identities. Whether consciously or unconsciously, we make judgments about people based on their appearance and their style. Simply by growing up in American culture, we acquire a sense of the style appropriate to different walks of life—how, for example, a high school teacher, a business executive, a truck driver, or a rock star ought to look. Style communicates messages about economic and social class precisely because we share with others cultural codes that define what"s normal and expected. For example, we expect wealthy professionals in metropolitan areas to be museum members, go to the opera, and enjoy gourmet food and fine wine. On the other hand, we are likely to expect that working-class men in the Midwest drink beer, listen to classic rock, and support their local pro-football team. This doesn"t mean that everyone in a particular social group conforms to these cultural codes. What it does indicate, however, is that style carries cultural meanings that go far beyond individual likes and dislikes. Style, in other words, is linked to the way of life that identifies groups of people, cultures, and subcultures. If the styles we adopt seem to be freely taken personal choices, they are contained nonetheless in a larger system of cultural codes that organize the way we think about identity, social status, prestige, good (and bad) taste, tradition, and innovation. Fashion designers, graphic designers, and product designers understand this intimate connection between style and identity. They design everything from corporate logos and brand trademarks to the latest style of jeans and athletic shoes to computers and cars. Their job is to match styles to people"s identities and, at the same time, to create styles that offer people new identities.

单选题 The uniqueness of the Japanese character is the result of two seemingly contradictory forces: the strength of traditions and selective receptivity to foreign achievements and inventions. As early as the 1860s, there were counter movements to the traditional orientation. Yukichi Fukuzawa, the most eloquent spokesman of Japan's "Enlightenment", claimed: "The Confucian civilization of the East seems to me to lack two things possessed by Western civilization: science in the material sphere and a sense of independence in the spiritual sphere." Fukuzawa's great influence is found in the free and individualistic philosophy of the Education Code of 1872, but he was not able to prevent the government from turning back to the canons of Confucian thought in the Imperial Rescript of 1890. Another interlude of relative liberalism followed World War I, when the democratic idealism of President Woodrow Wilson had an important impact on Japanese intellectuals and, especially students; but more important was the Leninist ideology of the 1917 Bolshevik Revolution. Again in the early 1930s, nationalism and militarism became dominant, largely as a result of failing economic conditions. Following the end of World War II, substantial changes were undertaken in Japan to liberate the individual from authoritarian restraints. The new democratic value system was accepted by many teachers, students, intellectuals, and old liberals, but it was not immediately embraced by the society as a whole. Japanese traditions were dominated by group values, and notions of personal freedom and individual rights were unfamiliar. Today, democratic processes are clearly evident in the widespread participation of the Japanese people in social and political life; yet, there is no universally accepted and stable value system. Values are constantly modified by strong infusions of Western ideas, both democratic and Marxist. School textbooks expound democratic principles, emphasizing equality over hierarchy and rationalism over tradition; but in practice these values arc often misinterpreted and distorted, particularly by the youth who translate the individualistic and humanistic goals of democracy into egoistic and materialistic ones. Most Japanese people have consciously rejected Confucianism, but vestiges of the old order remain. An important feature of relationships in many institutions such as political parties, large corporations, and university faculties is the oyabun-kobun or parent-child relation. A party leader, supervisor, or professor, in return for loyalty, protects those subordinate to him and takes general responsibility for their interests throughout their entire lives, an obligation that sometimes even extends to arranging marriages. The corresponding loyalty of the individual to his patron reinforces his allegiance to the group to which they both belong. A willingness to cooperate with other members of the group and to support without qualification the interests of the group in all its external relations is still a widely respected virtue. The oyabun-kohun creates ladders of mobility which an individual can ascend, rising as far as abilities permit, so long as he maintains successful personal ties with a superior in the vertical channel, the latter requirement usually taking precedence over a need for exceptional competence. As a consequence, there is little horizontal relationship between people even within the same profession.

单选题To be frank, I'd rather you ______ in the case. A. will not be involved B. not involved C. not to be involved D. were not involved

单选题Throughout this long, tense election, everyone has focused on the presidential candidates and how they'll change America. Rightly so. But selfishly, I'm more fascinated by Michelle Obama and what she might be able to do, not just for this country, but for me as an African-American woman. As the potential First Lady, she would have the world's attention. And that means that for the first time people will have a chance to get up close and personal with the type of African-American woman they so rarely see. Usually, the lives of black women go largely unexamined. The prevailing theory seems to be that we're all hot-tempered single mothers who can't keep a man. Even in the world of make-believe, black women still can't escape the stereotype of being eye-rolling, oversexed females raised by our never-married, alcoholic(酗酒的) mothers. These images have helped define the way all black women are viewed, including Michelle Obama. Before she ever gets the chance to commit to a cause, charity or foundation as First Lady, her most urgent and perhaps most complicated duty may be simply to be herself. It won't be easy. Because few mainstream publications have done in-depth features on regular African-American women, little is known about who we are, what we think and what we face on a regular basis. For better or worse, Michelle will represent us all. Just as she will have her critics, she will also have millions of fans who usually have little interest in the First Lady. Many African-American blogs have written about what they'd like to see Michelle bring to the White House—mainly showing the world that a black woman can support her man and raise a strong black family. Michelle will have to work to please everyone—an impossible task. But for many African-American women like me, just a little of her poise(沉着), confidence and intelligence will go a long way in changing an image that's been around for far too long.

单选题She had her finger ______when she was paper cutting.

单选题The pianist was{{U}} adept{{/U}} at playing the arpeggios.

单选题 The Supreme Court's decisions on physician-assisted suicide carry important implications for how medicine seeks to relieve dying patients of pain and suffering. Although it ruled that there is no constitutional right to physician-assisted suicide, the Court in effect supported the medical principle of "double effect, "a centuries-old moral principle holding that an action having two effects—a good one that is intended and a harmful one that is foreseen—is permissible if the actor intends only the good effect. Doctors have used that principle in recent years to justify using high doses of morphine to control terminally iii patients' pain, even though increasing dosages will eventually kill the patient. Nancy Dubler, director of Montefiore Medical Center, contends that the principle will shield doctors who "until now have very, very strongly insisted that they could not give patients sufficient mediation to control their pain if that might hasten death." George Annas, chair of the health law department at Boston University, maintains that, as long as a doctor prescribes a drug for a legitimate medical purpose, the doctor has done nothing illegal even if the patient uses the drug to hasten death. "It's like surgery," he says. "We don't call those deaths homicides because the doctors didn't intend to kill their patients, although they risked their death. If you're a physician, you can risk your patient's suicide as long as you don't intend their suicide." On another level, many in the medical community acknowledge that the assisted-suicide debate has been fueled in part by the despair of patients for whom modern medicine has prolonged the physical agony of dying. Just three weeks before the Court's ruling on physician-assisted suicide, the National Academy of Science (NAS) released a two-volume report, Approaching Death: Improving Care atthe End of Life. It identifies the under treatment of pain and the aggressive use of "ineffectual an forced medical procedures that may prolong and even dishonor the period of dying" as the twi problems of end-of-life care. The profession is taking steps to require young doctors to train in hospices, to test knowledge of aggressive pain management therapies, to develop a medicare billing code for hospital-base care, and to develop new standards for assessing and treating pain at the end of life. Annas says lawyers can play a key role in insisting that these well-meaning medical initiative translate into better care. "Large numbers of physicians seem unconcerned with the pain their patients are needlessly and predictably suffering", to the extent that it constitutes "systematic patient abuse". He says medical licensing boards "must make it clear.., that painful deaths are presumptively ones that are incompetently managed and should result in license suspension".

单选题 Space Shuttle Project is one of the first huge-typed spaceflight instruments used for many times in the world, organized by American National Aviation andSpaceflight Bureau, the main researches of{{U}} {{U}} 1 {{/U}} {{/U}}are researching and making the system of space shuttle, suggesting and choosing{{U}} {{U}} 2 {{/U}} {{/U}}and landing ports,deciding the scheme of reclaiming the roll booster of solid rocket,{{U}} {{U}} 3 {{/U}} {{/U}}the establishment of repairing the roll booster, and rebuilding and expanding the building of the{{U}} {{U}} 4 {{/U}} {{/U}}and controlling system. At the beginning of 1969, the United States set up a group that specially researched the development direction of spaceflight with{{U}} {{U}} 5 {{/U}} {{/U}}for the next stage,{{U}} {{U}} 6 {{/U}} {{/U}}by deputy president. After{{U}} {{U}} 7 {{/U}} {{/U}}and research, it suggested that an aerocraft with great benefits in{{U}} {{U}} 8 {{/U}} {{/U}}should be made, eg{{U}} {{U}} 9 {{/U}} {{/U}}the spaceflight being its leading stanchion. In this project, five orbit implements were prescribed to be made,{{U}} {{U}} 10 {{/U}} {{/U}}" Exploitation", " Columbia", " Challenger","Discovery" and "Atlands". In 1970, spaceflight got into an all-round{{U}} {{U}} 11 {{/U}} {{/U}}of research and manufacture. The whole-project had to delay more than three years. Five orbit implements were{{U}} {{U}} 12 {{/U}} {{/U}}to be four and flight experiment for six times was also decreased for four, {{U}} {{U}} 13 {{/U}} {{/U}}the number of production was cut down, according to the original scheme. In April 1971 this{{U}} {{U}} 14 {{/U}} {{/U}}was decided that Kennedy Space Centre was used for the launching and landing port for space shuttles, and Edwards Air Base was used for the{{U}} {{U}} 15 {{/U}} {{/U}}landing port. In February 1977,"Exploitation" Orbit Implement started to have entering and landing experiment sin Edwards Air Base. From May 12, 1981 to July 4, 1982, "Columbia" Space Shuttle successfully finished four flight experiments for research and manufacture, {{U}} {{U}} 16 {{/U}} {{/U}}meant that the {{U}} {{U}} 17 {{/U}} {{/U}}and manufactures were over in{{U}} {{U}} 18 {{/U}} {{/U}}form. It{{U}} {{U}} 19 {{/U}} {{/U}}about 12 years and cost more than 75 billion US dollars to finish the whole project. On November 11, 1990, space shuttles began to fly for{{U}} {{U}} 20 {{/U}} {{/U}}.

单选题After the earthquake, a new school building was put up ______ there had once been a theatre.

单选题In the past few decades, remarkable findings have been made in ethnology, the study of animal social behavior. Earlier scientists had (61) that nonhuman social life was almost totally instinctive or fixed by genetics. Much more careful observation has shown that (62) variation occurs among the social ties of most species, showing that learning is a part of social life. That is, the (63) are not solely fixed by the genes. (64) , the learning that occurs is often at an early age in a process that is called imprinting. Imprinting is clearly (65) instinctive, but it is not quite like the learning of humans; it is something in between the two. An illustration best (66) the nature of imprinting. Once, biologists thought that ducklings followed the mother duck because of instincts. Now we know that, shortly (67) they hatch, ducklings fix (68) any object about the size of a duck and will henceforth follow it. So ducklings may follow a basketball or a briefcase if these are (69) for the mother duck at the time when imprinting occurs. Thus, social ties can be considerably (70) , even ones that have a considerable base (71) by genetics. Even among the social insects something like imprinting (72) influence social behavior. For example, biologists once thought bees communicated with others purely (73) instinct. But, in examining a "dance" that bees do to indicate the distance and direction of a pollen source, observers found that bees raised in isolation could not communicate effectively. At a higher level, the genetic base seems to be much more for an all-purpose learning rather than the more specific responses of imprinting. Chimpanzees, for instance, generally (74) very good mother but Jane Good all reports that some chimps carry the infant upside down or (75) fail to nurture the young.