单选题In England recently three foreign gentlemen approached a bus stop. They studied the information on the sign attached to the concrete post and decided which bus to take. About five minutes later the bus they wanted came along. They prepared to board it. Suddenly there was a clamor behind them. People rushed onto the bus and tried to push them out of the way. Someone shouted insulting remarks about foreigners. The bus conductor came rushing down the stairs to see what all the trouble was about. The three foreign gentlemen looked puzzled and embarrassed. No one had told them about the British custom of queuing for a bus so that the first person who arrived at a bus stop is the first person to get on the bus. Learning the language of a country isn"t enough. If you want to ensure a pleasant visit, find out as much as possible about the manners and customs of your hosts. You will probably be surprised just how different they can be from your own. A visitor to India would do well to remember that people there consider it impolite to use the left hand for passing food at table. The left hand is supposed to be used for washing yourself. Also in India, you might see a man apparently shaking his head at another and assume that he is disagreeing. But in many parts of India a rotating movement of the head is a gesture that signifies agreement or acceptance. Nodding your head when offered a drink in Bulgaria is likely to leave you thirsty. In that country you shake your head to signify "yes" a nod indicates "no". Arabs are known for their sumptuous hospitality. At a meal in countries on the Arabian Peninsula, you will find that any drinking vessel is repeatedly refilled as soon as you drain it. The way to indicate that you have had enough is to take the cup or glass in your hand and give it a little shake from side to side or place your hand over the top. In Europe it is quite usual to cross your legs when sitting talking to someone even at an important meeting. Doing this when meeting an important person in Thailand, however, could cause offence. It is considered too informal an attitude for such an occasion. Also when in Thailand avoid touching the head of an adult— it"s just not done.

单选题Computer programmer David earns $40,000 a year designing new computer games, yet he cannot find a bank to let him have a credit card. Instead, he has been told to wait another two years until he is 18. The 16-year-old works for a-small firm in Liverpool. David's firm releases two new games for the fast growing computer market each month. But David's biggest headache is what to do with his money. Even though he earns a lot, he cannot drive a car, take out a mortgage(抵押货款), or get credit cards. "I got the job because the people who run the firm knew I had already written some programs." he said. David spends some of his money on records and clothes, and gives his mother 50 pounds a week. "Unfortunately, computing was not part of our studies at school," he said, "but I had been studying it in books and magazines for four years in my spare time. I knew what I wanted to do and never considered staying on at school." David added, "I would like to earn a million and I suppose early retirement is a possibility. You never know when the market might disappear./

单选题There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic. At present, we realize that although these are the areas with the worst air pollution, the problem is literally worldwide. On several occasions over the past decade, a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas' away from any major concentration of manufacturing and automobile traffic. In fact, the very climate of the entire earth may be infected by air pollution. Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels (coal and oil)is creating a "greenhouse effect" -- conserving heat reflected from the earth and raising the world's average temperature. If this view is correct and the world's temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York, Boston, Miami, and New Orleans will be in water. Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth's temperature -- a result that would be equally disastrous. A drop of just a few degrees could create something close to a new ice age, and would make agriculture difficult or impossible in many of our top farming areas. Today we do not know for sure that either of these conditions will happen (though one recent government report drafted by experts in the field concluded that the greenhouse effect is very possible). Perhaps, if we are lucky enough, the two tendencies will offset each other and the world's temperature will stay about the same as it is now.

单选题It is well known that teenage boys tend to do better at math than girls, that male high school students are more likely (26) their female counterparts to tackle advanced math courses like calculus, that (27) all the great mathematicians have been men. Are women born with (28) mathematical ability? Or does society's sexism (29) their progress? In 1980, two Johns Hopkins University researchers tried to (30) the eternal nature/nurture debate. Julian Stanley and Camilla Benbow have (31) 10,000 talented seventh and eighth (32) between 1972 and 1979. Using the Scholastic Aptitude Test, (33) math questions are meant to measure ability rather than knowledge, they discovered (34) sex differences. (35) the verbal abilities of the males and females (36) differed, twice as (37) boys as girls scored over 500 (on a scale of 200 to 800) on mathematical ability; at the 700 level, the ratio was 14 (38) l. The conclusion: males have (39) superior mathematical reasoning ability. Benbow and Stanley's findings, (40) were published in "Science", (41) some men and women. Now there is comfort for those people in a new study from the University of Chicago that suggests math is not, after all, a natural male (42) Prof. Zalman Usiskin studied 1,366 high school students. They were selected from geometry classes and tested (43) their ability to solve geometry proofs, a subject requiring (44) abstract reasoning and spatial ability. The conclusion (45) by Usiskin: there are no sex differences in math ability.

单选题{{B}}Text 1{{/B}} A consumer survey examining the children's and teenager's book markets was conducted by Bruno 22% were 18-19 years old, 28% were 30-44 years old and 50% were 45 years old and older. Most were married (79%); 21% were single, divorced or widowed. The teen sample included 53 girls and 47 boys. Fifty-seven were in the 12-14 age range, 43 in the 15-17 age range. Twenty-four teens were interviewed by telephone and 76 were interviewed in shopping malls across the country. To shed some light on the children's and teen book market, PW and BookExpo America examined consumer trends among children's and teenage book buyers. The survey evaluated what kinds of children's and teenage books consumers choose, how they choose them and where they go to buy them. The findings paint a positive picture of America's younger generations of readers and point optimistically toward a future country of book lovers. Judging from responses, adults who buy children's books believe that books play an important role in a child's development. Consequently, the majority children's book buyers take seriously the process of choosing books for children. For their part, teens feel that "reading is cool" and "makes you smarter". An analysis of these attitudes and an examination of the book-buying habits of children's and teen book consumers could be useful in helping publishers, promoters and booksellers provide more appealing products and services.

单选题{{B}}Text 3{{/B}} Futurists love computers. After all,40 years ago electronic digital computers didn't exist; today microchips as tiny as a baby's fingernail are making all sorts of tasks faster and easier. Surely the future holds still more miracles. Some of the computer experiments now going on inspire exciting visions of the future. For example, scientists are working on devices that can electronically perform some sight and hearing functions, which could make life easier for the blind and deaf. They're also working on artificial arms and legs that respond to the electric impulses produced by the human brain. Scientists hope that some day a person who's lost an arm could still have near-normal brain control over an artificial arm. Video games, computerized special effects in movies, and real-life training machines now being used by the US Army are causing some people to predict new educational uses for computers. Computers could some day be used to simulate travel to other planets, to explore the ocean floor, or to look inside an atom. Experiments with electronic banking and shopping inspire predictions that these activities will soon be done from home computer terminals. Cars, too, might be equipped with computers to help drivers find their way around (Honda has one in an experimental car) or to communicate with home and office computers. Many people, including handicapped workers with limited ability to move around, already are working at home using computer terminals. Each terminal is connected to a system at a company's main office. Some futurists say the day may come when few people will have to leave home to go to work -- they'll just turn on a terminal A growing number of factories such as the General Motors Plant in Newark, Delaware, "hire" computerized robots to perform tasks such as spot welding. Some executives get a gleam in their eyes as they envision the spread of these "perfect workers" -- no coffee breaks, no strikes, and no vacations or sick days. These modern and potential computer uses are possible because of the silicon microchip. These chips, which have become increasingly complex since their beginning in 1959, contain a network of information pathways. Electronic impulses travel along the paths. The plans for a chip look much like a city street plan and can be as large as a football field. It can take as long as three months to complete a new chip design. Chips are used to store information, too. An entire "computer" can be put onto one chip -- called a microprocessor. As chips become even more complex, easier to make, and less costly, futurists predict limitless possibilities. A group of Japanese scientists is working on a new generation of computers, which they hope will be able to understand vocal instructions, talk back to their users, and automatically try out alternate solutions to a problem to come up with the best answer. Some people say that the humans of the future will never be without their companion -- computers. Predicting the future can be tricky, of course. In 1948 an IBM study predicted that there would never be enough demand for computers to justify going into the business!

单选题According to the passage, man will begin to think about such needs as housing and clothing only when______.

单选题The example given about a young wife shows that ______.

单选题How much did the shoes cost originally?

单选题In England recently three foreign gentlemen approached a bus stop. They studied the information on the sign attached to the concrete post and decided which bus to take. About five minutes later the bus they wanted came along. They prepared to board it. Suddenly there was a clamor behind them. People rushed onto the bus and tried to push them out of the way. Someone shouted insulting remarks about foreigners. The bus conductor came rushing down the stairs to see what all the trouble was about. The three foreign gentlemen looked puzzled and embarrassed. No one had told them about the British custom of queuing for a bus so that the first person who arrived at a bus stop is the first person to get on the bus. Learning the language of a country isn''t enough. If you want to ensure a pleasant visit, find out as much as possible about the manners and customs of your hosts. You will probably be surprised just how different they can be from your own. A visitor to India would do well to remember that people there consider it impolite to use the left hand for passing food at table. The left hand is supposed to be used for washing yourself. Also in India, you might see a man apparently shaking his head at another and assume that he is disagreeing. But in many parts of India a rotating movement of the head is a gesture that signifies agreement or acceptance. Nodding your head when offered a drink in Bulgaria is likely to leave you thirsty. In that country you shake your head to signify " yes" a nod indicates "no". Arabs are known for their sumptuous hospitality. At a meal in countries on the Arabian Peninsula, you will find that any drinking vessel is repeatedly refilled as soon as you drain it. The way to indicate that you have had enough is to take the cup or glass in your hand and give it a little shake from side to side or place your hand over the top. In Europe it is quite usual to cross your legs when sitting talking to someone even at an important meeting. Doing this when meeting an important person in Thailand, however, could cause offence. It is considered too informal an attitude for such an occasion. Also when in Thailand avoid touching the head of an adult—it''s just not done.

单选题The passage indicates that the conditions that led to overcrowded roads also brought about ______.

单选题In Line 15, what is the author's purpose in mentioning a rose, an apple, or an orchid?

单选题In every cultivated language there are two great classes of words. They, taken together, (26) the whole vocabulary. First, there are those words (27) which we become familiar in ordinary conversation, which, we learn, (28) is to say, from the members of our own family and from our friends, and which we should know and use (29) we could not road or write. They . (30) the common things of life, and are the stock in trade of (31) who speak the language. Such words may be called "popular", since they belong to the people (32) and are not the (33) of a limited class only. On the other hand, our language includes a large number of words which are (34) seldom used in ordinary conversation. Their meanings are known to every (35) person, but there is little (36) to use them at home. Our first (37) with them comes not from our mother's lips or from the talk of our classmates, (38) from books that we read, lectures that we hear, or the more formal conversation of (39) educated speakers who are discussing some particular topic in an elevated (40) . Such words are called "learned", and the difference between them and "popular" words is (41) great importance to a right understanding of language. We may (42) a girl as "lively" or as "vivacious. "In the first (43) , we are using a native English word (44) from the familiar noun "life". In the (45) , we are using a Latin derivative which has exactly the same meaning.

单选题 IQuestions 14-17 are based on the following dialogue./I

单选题 {{B}} Text {{/B}} Every human being, {{U}}(26) {{/U}} what he is doing, gives off body heat. The usual problem is {{U}}(27) {{/U}} dispose of it. But the designers of the Johnstown campus of the University of Pittsburgh set themselves the {{U}}(28) {{/U}} problem how to collect body heat. They have designed a collection system which utilize {{U}}(29) {{/U}} body heat, but the heat given off by such objects {{U}}(30) {{/U}} light bulbs and refrigerators as well. The system works so well {{U}}(31) {{/U}} no conventional fuel is needed {{U}}(32) {{/U}} the campus's six buildings comfortable. Some parts of most modern buildings, theatres and offices {{U}}(33) {{/U}} classrooms are more than heated by people and lights and sometimes must be air-conditioned and {{U}}(34) {{/U}} in winter. The technique of {{U}}(35) {{/U}} heat and redistributing it is {{U}}(36) {{/U}} "heat recovery". A few modern buildings recover {{U}}(37) {{/U}}, but the university's system is the first to recover heat {{U}}(38) {{/U}} some buildings and reuse it in {{U}}(39) {{/U}}. Along the way, Pitt has learned a great deal about some of its heal producers. The {{U}}(40) {{/U}} a student studies, the more heat his body {{U}}(41) {{/U}}. Male students emit more than {{U}}(42) {{/U}} students, and the larger a student, the more heat his body {{U}}(43) {{/U}}. It is tempting to {{U}}(44) {{/U}} that the hottest prospect for the Johnstown campus would be a {{U}}(45) {{/U}} overweight male genius.