单选题Many teachers believe that the responsibilities for learning lie with the student. 1 a long reading assignment is given, instructors expect students to be familiar with the 2 in the reading even if they don"t discuss it in class or take an exam. The 3 student is considered to be 4 who is motivated to learn for the sake of 5 , not the one interested only in getting high grades. Sometimes homework is returned 6 brief written comments but without a grade. Even if a grade is not given, the student is 7 for learning the material assigned. When research is 8 , the professor expects the student to take it actively and to complete it with 9 guidance. It is the 10 responsibility to find books, magazines, and articles in the library. Professors do not have the time to explain 11 a university library works; they expect students, 12 graduate students, to be able to exhaust the reference 13 in the library．Professors will help students who need it, but 14 that their students should not be 15 dependent on them. In the United States, professors have many other duties 16 teaching, such as administrative or research work 17 , the time that a professor can spend with a student outside of class is 18 . If a student has problems with classroom work, the student should either 19 a professor during office hour 20 make an appointment．

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单选题The expression "esthetic qualities" might have something to do with the ______ of the containers.

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.

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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.