单选题Very often, the human eye and brain can recognize familiar shapes even if all but a few significant points are left out. It is this creative power of the human eye and brain that may someday allow profoundly deaf people to talk in sign language over a special "telephone". Researchers have found that thirteen spots of light on each hand and one spot on the nose--to show head motion and provide a reference point for hand position--are sufficient for the performing of American Sign Language. The bright spots are produced by attaching pieces of a special tape to the nose, fingertips, and wrists and adjusting a closed-circuit television system so that only the bright spots appear on the screen of the receiver. After a few minutes of familiarization, pairs of deaf people are able to communicate freely over television. Deaf people and other sign readers can, of course, understand sign language on commercial television. But widespread link-ups of television systems for personal communication are economically impolite because a standard picture requires about one thousand times more information than a telephone circuit can carry. The researchers think if likely through the simplified picture of twenty-seven moving dots used in their experiments can be reduced to the capacity of a telephone line.

单选题Socrates accepted the death penalty to show______.

单选题Play is the principal business of childhood, and more and more in recent years research has shown the great importance of play in the development of a human being. From earliest infancy, every child needs opportunity and the right material for play, and the main tools of play are toys. Their main function is to suggest, encourage and assist play. To succeed in this they must be good toys, which children will play often, and will come back to again and again. Therefore it is important to choose suitable toys for different stages of a child' s development. In recent years research on infant development has shown the standard a child is likely to reach, within the range of his inherited abilities, is largely determined in the first three years of his life. So a baby' s ability to profit from the right play materials should not be underestimated. A baby who is encouraged and stimulated, talked to and shown things and played with, has the best chance of growing up successfully. The next stage, from three to five years old, curiosity knows no bounds. Every type of suitable toys should be made available to the child, for trying out, experimenting and learning, for discovering his own particular ability. Bricks and jigsaws and construction toys; painting, scribbling and making things; sand and water play; toys for imaginative and pretending play; the first social games for learning to play and get on with others. By the third stage of play development -- from five to seven or eight years -- the child is at school. But for a few more years play is still 'the best way of learning, at home or at. school. It is. easier to see which type of toys the child most enjoys. Until the age of seven or eight, play and work mean much the same thing to a child. But once reading has been mastered, then books and school become the main source of learning. Toys are still interesting and valuable, they lead on to new hobbies, but their significance has changed -- to a child of nine or ten years, toys and games mean, as to adults, relaxation and fun.

单选题What does the woman suggest the man should do?

单选题Which one of the following adjectives can't be applied to language?

单选题According to Paragraph 1, compared with today, industries in the past______.

单选题An enormous variety of relationships between men and women, singly and in groups, meet the definition of marriage. Often the forms of marriage sanctioned by a society are related to the needs of that society. Marriage between two individuals, one male and one female, is known as monogamy. Marriage of three or more individuals is known as polygamy. Polygyny is a form of polygamy in which one male is married to more than one female. Polyandry is a form of polygamy in which one female is married to more than one male. Still another form of polygamy is group marriage, in which two or more males are married to two or more females. In some societies a polyandrous marriage of two men with one woman may become a group marriage through the addition of a second woman. Not uncommonly in these marriages, the co-husbands are brothers and the added woman is the first wife's sister. In general, polygyny presupposes a considerable accumulation of wealth and is therefore rarely practice. A polygynous marriage requires more economic resources than a monogamous marriage because in most societies each wife and her children, unless they are sisters, have their own sleeping quarters and sometimes also have their own cooking facilities. Where polygyny exists, it is practiced largely by the wealthy and the ruling classes, because only these can afford the luxury of having more than one wife. Generally it is the older men, who have lived long enough to acquire capital, who have more than one wife. Younger men have either one wife or none. In some societies where there is an extension of the marriageable ages for women, such as from 13 to 45 years, and a compression of marriageable ages for men, a larger pool of female partners is available, without an overall unbalanced sex ratio. This, too, leads to older men having several wives.

单选题[此试题无题干]

单选题It is surprising how many expressions that people use every day tame from the card game poker For ex- ample, you hear the expression "ace in the hole" used by many who would never think of going near a poker table. An ace in the hole is any argument, plan or thinking kept hidden until needed, especially when it can turn failure into success. In poker and most card games, the ace is the highest and most valuable card. It is often a winning card. In one kind of poker game, the first card to each player is dealt face down. A player does not show-this card to the other players. The other cards are dealt face up with the players betting money each time they receive another card. No one knows until the end of the game whose hidden card is the winner. Often, the "ace in the hole" wins the game. Smart card players, especially those who play for large amounts of money, closely watch the person who deals the cards. They are watching to make sure he is dealing honestly, that he is not dealing off the bottom of the stack of cards. A dealer who is doing that has "stacked the deck". He has fixed the cards so that he will get higher cards and you will lose. The expression "dealing off the bottom" now means cheating in business, as well as in cards. And when someone tells you that "the cards are stacked" against you, he is saying you do not have a chance to succeed. In a poker game you do not want to let your opponents know if your cards are good or bad. So having a "poker face" is important. A poker face never shows any emotion, never expresses either good or bad feelings. No one can learn, by looking at your face. if your cards are good or bad. People now use "poker face" in everyday speech to describe someone who shows no emotion. Someone who has a "poker face" usually is good at "bluffing". Bluffing is trying to trick a person into believing something about you that is not true. In poker, you bluff when you bet heavily on a poor hand. The idea is to make the other players believe you have strong cards and are sure to win. If they believe you, they are likely to drop out of the game, leaving to you the money they have bet. You can do a better job of bluffing if you "hold your cards close to your vest". You hold your cards close to you so no one else can see what you have. In everyday speech, holding your cards close to your vest means not letting others know what you are doing or thinking. You arc keeping your plans secret.

单选题 From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first{{U}} (26) {{/U}}, they were like newborn children, unable to use this{{U}} (27) {{/U}}tool. Yet once language developed, the possibilities for mankind's future{{U}} (28) {{/U}}and cultural growth increased. Many linguists believe that evolution is{{U}} (29) {{/U}}for our ability to produce and use language. They{{U}} (30) {{/U}}that our highly evolved brain provides us{{U}} (31) {{/U}}an innate language ability not found in lower{{U}} (32) {{/U}}. Proponents of this innateness theory say that our{{U}} (33) {{/U}}for language is inborn, but that language itself develops gradually,{{U}} (34) {{/U}}a function of the growth of the brain during childhood. Therefore there are critical{{U}} (35) {{/U}}times for language development. Current{{U}} (36) {{/U}}of innateness theory are mixed; however, evidence supporting the existence of some innate abilities is undeniable.{{U}} (37) {{/U}}, more and more schools are discovering that foreign languages are best taught in{{U}} (38) {{/U}}grades. Young children often can learn several languages by being{{U}} (39) {{/U}}to them, while adults have a much harder time learning another language once the{{U}} (40) {{/U}}of their first language have become firmly fixed. {{U}} (41) {{/U}}some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been{{U}} (42) {{/U}}from other human beings do not possess language. This demonstrates that{{U}} (43) {{/U}}with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language{{U}} (44) {{/U}}than any innate capacities. These theorists view language as imitative, learned behavior.{{U}} (45) {{/U}}, children learn language from their parents by imitating them. Parents gradually shape their child's language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.

单选题The committee system serves best to__________.

单选题Generations of Americans have been brought ____ 1____ to believe that a good breakfast is impor-tant fof health. Eating breakfast at the ____ 2____of the day, we have all been ____ 3____, is as necessaryas putting gasoline in the family car ____ 4____starting a trip. But for many people the thought of food first in the morning is by ____ 5____pleasures. So ____ 6____ all the efforts, they still take no ____ 7____ Between 1978 and 1983, the latest years for which figuresare ____ 8____ ,the number of people who didn' t have breakfast increased ____ 9____33 percent-from 8.8million to 11.7 million____10____the Chinese-based Market Research Corporation of America. For those who feel pain of ____11____ about not having breakfast,____ 12____. there is some goodnews. Several studies in the last few years ____ 13____that, for adults especially, there may be nothing____14____with omitting breakfast. "" Going ____ 15____breakfast does not affect ____ 16____"Said Amold E.Bendoer, former professor of nutrition at Queen Elizabeth College in London, ____17____does givingpeople breakfast improve performance. ____18____evidence relating breakfast to better health or ____ 19____performances is surprisingly inade-quate, and most of the recent work involves children, not ____ 20____ "The literature," says one researcher, Dr. Ernesto Pollitt at the University of Texas."is poor.

单选题HowdoesthewomanfeelaboutSingapore?

单选题 Text The evolution of artificial intelligence is now proceeding so rapidly that (26) the end of the century cheap computers (27) larger than portable typewriters will (28) that will be able to solve almost any (29) faster and more efficiently than we can. "Intelligence" in a machine, (30) in a human, is best (31) as the ability to solve complex problems swiftly. This (32) involve medical analysis and prescriptions, (33) legal matters -- (34) short, replacing the profession of lawyers completely -- or in (35) war-games: in other words (36) governments whether (37) not to go to war. (38) computers have already intensified the deadlines of weapons, the prospect for the future is that they will (39) the more beneficial role of preventing wars. (40) asked to estimate the chances of victory, the computer will analyze facts (41) from the life-long military expert with his optimistic sense and military enthusiasm. When the same figures are fed into the emotionless machine each to be weighed with (42) objective and then judged (43) each other, the (44) , far more often than (45) in human decision-making, will be:" You start this war you will lose./

单选题What do we find after the development of the laser in the 1960s?

单选题{{B}}Text 3{{/B}} The visual arts are a class of art forms, including painting, sculpture, photography, and others, that focus on the creation of artworks which are primarily visual in nature. The visual arts are distinguished from the performing arts, language arts, and other such classes of artwork. The definition is not strict, and many artistic disciplines involve aspects of the visual arts as well other types. In Britain until recently the fine arts-painting, sculpture, printmaking, and so on-were seen as distinct from craft disciplines and the various metalworking disciplines. This distinction arose from the Arts and Crafts Movement whose political aim was to value daily art forms as much as high forms. The result of the conflict between the two groups was to politicize the products of what we now know as visual artists. British art schools made a clear distinction between the fine arts (a term that hints at their supposed superiority) and the crafts in such a way that a craftsperson could not be considered a practitioner of high art. Although this is no longer the case, the inequality between the crafts or applied arts and the so-called fine arts still exists in some quarters. A similar stigma exists in the US, where "arts and crafts" has a very particular meaning, referring to the sort of artwork first taught in elementary school and also (later in life) a variety of kitsch, household artwork. Most craftspeople are still seen as practicing something other than "fine art" among the traditional art school set, but, of course, can produce "high art", in any medium.