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What were the three cornerstones of American postwar economic boom？
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更多“What were the three cornerston…”相关的问题
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？Many people thought babies were not able to learn things until they were five or six month sold. But doctors now say babies begin learning on their first day of life. A baby will smile if his or her mother does something the ？baby likes. A baby learns to get the best care by smiling top lease her mother or other care givers. This is when babies learn to connect and “talk” with other people.
？Languages kills are believed to develop best in the first three years when the place is rich with sounds and sights. Scientists say children should hear the speech and language of other people again and again. The first signs of communication(交际) happen during the first few days of life, when a baby learns that crying will bring food and attention.
Research shows that most children recognize the general sounds of their native language by six months of age. By that time, a baby usually begins to make sounds. By the end of their year, most children are able to say a few simple words, although they may not understand the meaning of the words. By 18 months of age, most children can say between eight and ten words. By two years of age, most children are able to make simple sentences. By ages three, four and five, the number of words a child can understand quickly increases. It is at these ages that children begin to understand the rules of language.
When do babies begin to learn according to doctors？？？？？
？？？？A.Right after they are born
B.Not until they are five months old
C.When they are six months old
D.As soon as they are one year old
Babies will smile when .
A.they are wet or hungry
B.they want to get the best care
C.they want to talk to others
D.they learn sounds and words
What do most children begin to do from age three or older？A.Make sounds
B.Make simple sentences
C.Say a few words
D.Understand language rules
What would be the best title for the text？A.The Language of Babies
B.When Do Babies Learn to Talk
C.The Roles of Cry and Smile
D.How Babies Understand Words
请帮忙给出每个问题的正确答案和分析，谢谢！
Passage Three
For more than six million American children, coming home after school means coming home to an empty house. They spend part of each day alone. They are called "latchkey children". They're children who look after themselves while their parents work. And their bad conditions have become a social problem.
Lyne Brown was once the headmaster of an elementary school. She said, "A lot of kids had chains around their necks with keys attached.! was constantly telling them to put them inside shirts. There were so many keys, it never came to my mind what they meant. ",slowly, she learned they were house keys.
Lyne learned of the impact working couples and single parents were having on their children. She found that Fear is the biggest problem faced by children at home alone. Many had nightmares and were worried about their own safety.
The most common way latchkey children deal with their fears is by hiding. It might be in a shower stall, under a bed, in a closet. The second is TV. They'll often play it at high volume. It's hard to get statistics (情况，材料) on latchkey children. Most parents are slow to admit they leave their children alone.
41. The main idea about "latchkey children" is that they______.
A. are growing in numbers
B. are also found in middle-class neighborhoods
C. watch too much television during the day
D. suffer problems from being left alone
These proportions vary somewhat from one area of the nation to another. In all areas, however, families are the fastest-growing sector of the homeless population, and in the Northeast they are by far the largest sector already. In Massachusetts, three-fourths of the homeless now are families with children; in certain parts of Massachusetts—Attleboro and Northampton, for example—the proportion reaches 90 percent. Two thirds of the homeless children studied recently in Boston were less than five years old.
Of the estimated two to three million homeless people nationwide, about 500,000 are dependent children, according to Robert Hayes, counsel to the National Coalition for the homeless. Including their parents, at least 750,000 homeless people in America are family members.
What is to be made, then, of the supposition that the homeless are primarily the former residents of mental hospitals, persons who were carelessly released during the 1970s？ Many of them are, to be sure. Among the older men and women in the streets and shelters, as many as one-third (some believe as many as one-half) may be chronically disturbed, and a number of these people left mental hospitals during the 1970s. But in a city like New York, where nearly half the homeless are small children with an average of six, to operate on the basis of such a supposition makes no sense. Their parents, with an average age of twenty-seven, are not likely to have been hospitalized in the 1970s, either.
According to the statistics, among the homeless in New York there were ______.
A．more people in a families than single persons
B．about six thousand families
C．3 children in a family
D．more families with two parents than one
It has long been the subject of speculation among the police and criminologists: what would happen if all the officers who now spend so much of their time taking statements, profiling criminals and moving pieces of paper around were suddenly put on the streets？ Crime figures released by London's Metropolitan Police this week provide the best answer yet.
Following the bombings of July 7th and 21st, thousands of police officers materialised on London's pavements, many of them sporting brightly coloured jackets. Drawn from all over the city, they were assigned to guard potential targets such as railway stations. The police presence was especially heavy in the bombed boroughs: Camden (which was struck three times), Hammersmith and Fulham, Lambeth, Tower Hamlets, Westminster and the City of London.
The show of force did not just scare off terrorists. There was less crime in July than in May or June, which is unusual: the warmer month tends to bring out criminal tendencies, as windows are left open and alcohol is imbibed alfresco. But the chilling effect was much stronger in the six boroughs that were targeted by terrorists. There, overall crime was down by 12% compared with July 2004.In inner London as a whole, crime fell by 6%. But in outer London, where the blue line was thinner, it went up slightly.
Simon Foy, who tracks such trends at the Metropolitan Police, says that crime fell particularly steeply on the days of the attacks, partly because of the overwhelming police presence and partly because "even criminals were watching their televisions". What is significant is that crime barely rose thereafter. That was a change from the aftermath of September 11th 2001, when crime quickly soared just about everywhere—possibly because officers were deployed only in the very centre of London.
"The received wisdom among criminologists is that marginal changes invisible patrolling have little or no effect on crime," says Mike Hough, a criminologist at King's College London. July's experiment should put that argument to rest. Even if offenders do not make rational calculations about the odds of being caught—which was low both before and after the bombings—they will be moved by a display of overwhelming force.
What does the word "materialise" mean in the second paragraph？
A．Bomb.
B．Investigate.
C．Provoke.
D．Appear.
Dr. Farid employed a technique called wavelet analysis to examine 13 drawings that had at one time or another been attributed to Pieter Bruegel the Elder, a 16th-century Flemish painter. He also looked at Perugino's "Madonna with Child", a 15th-century Italian -masterpiece lodged in the college's Hood Museum of Art. He concluded, in agreement with art historians, that eight of the putative Bruegels are authentic, while the other five are imitations. In the case of "Madonna with Child", he analysed the six faces in the painting (Mary, the infant Jesus and several saints) and found that three of them were probably done by the same painter, while the other three were each done by a different hand. The view that four different painters worked on the canvas is, he says, consistent with the view of some art historians that Perugino's apprentices did much of the work, although there is no clear consensus among art historians.
As sceptics will doubtless point out, this is a small number of images. Furthermore, Dr. Farid knew before performing the analysis what results he expected. But he is the first to acknowledge that it is early days for his methodology. He hopes to study many more paintings. By looking at large numbers of paintings that are universally believed to be authentic, Dr. Farid hopes to be able to examine doubtful cases with confidence in the future.
Even with the Bruegels—real and imitation—though, Dr. Farid's results are persuasive. It is tricky to describe exactly what it is that distinguishes the real ones from the imitations, but Dr. Farid says that it can be thought of as the nature of the artist's brushstroke. Unlike some analyses of Jackson Pollock's work that have been done over the past few years by Richard Taylor of the University of Oregon, Dr. Farid says his technique could, in principle, be used for any artist.
What Dr. Farid did was to convert each work of art into a set of mathematical functions. These so-called wavelets describe particular parts of the image as a series of peaks and troughs of variable height and wavelength. By expressing an image this way, it is possible to compress that image while losing very little information. The sums of the wavelets from different images can then be compared. Once he did this, Dr. Farid found that the types of wavelets used to express authentic Bruegels were noticeably different from those used to express the imitations. (The Perugino was analysed by treating the six faces as distinct paintings.) It seems that curators may s6on be able to add another weapon to their anti-forgery arsenal.
The message Dr. Farid's work focuses on is close to ______.
A．what the artwork intends to tell
B．the style. and form. of the work
C．the common factor of science
D．the quality of the artwork
The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate foster (收养) homes. Peter was reared by parents of low intelligence in an isolated community with poor educational opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark's IQ was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level.
This selection can be titled ______.
A．Measuring Your Intelligence
B．Intelligence and Environment
C．The Case of Peter and Mark
D．how the Brain Influences Intelligence
They flew to London and arrived at their hotel late one evening. They expected that they would have to go to bed hungry, because in that small inn in New Jersey no meals were served after seven. They were therefore surprised when the man who received them in the hall asked whether they would ask dinner there that night.
"Are you still serving dinner？" asked Mr. Smith.
"Yes, certainly, sir," answered the man. "We serve it until half past nine."
"What are the times of meals then？" asked Mr. Smith.
"Well, Sir," answered the man, "We serve breakfast from seven to half past eleven in the morning, lunch from twelve to three in the afternoon, tea from four to five and dinner, from six to half past nine."
"But that hardly leaves any time for us to see the sights of London." Said Mrs. Smith.
Mr. and Mrs. Smith ______ in the past.
A．had often stayed in a big hotel in New Jersey
B．had traveled to many places
C．had often stayed in a small inn
D．had made a lot of money
When he got up in the morning, it looked, as though the fire was dying down, though he could still see some flames. So he set to work to tidy his room and put his things back where he wanted them. While he was doing this, Jane came in to say that she had heard the fire was a bad one:three hundred houses had been burned down in the night and the fire was still burning. Pepys went out to see for himself. He went to the Tower of London and climbed up on a high part of the buildings so that he could see what was happening. From there, Pepys could see that it was, indeed, a bad fire and that even the houses on London Bridge were burning. The man of the Tower told him that the fire had started in a baker's shop in Pudding Lane; the baker's house had caught fire from the overheated oven and then the flames had quickly spread to the other houses in the narrow lane. So began the Great Fire of London, a fire that lasted nearly five days, destroyed most of the old city and ended, so it is said, at Pie Corner.
What is the passage about？
A．The Great Fire of London.
B．Who was the first to discover the fire.
C．What Pepys was doing during the fire.
D．The losses caused by the fire.
Passage Three
An old Indian story says that the game of chess (国际象棋) was invented by Sissa Ben, Prime Minister of King Shirham. As soon as the invention was finished he gave it to the king, who was glad and asked him what he would like to have in return. To the king's surprise, what Sissa wanted seemed very little. "Your Majesty, "said the minister, kneeling before the king. "I want nothing but some wheat. Please put a grain of wheat on the first square of the chessboard (棋盘), two on the second, four on the third, eight on the fourth.., and so on, doubling the number for each following square. Give me enough grains to cover the 64 squares of the chessboard."
"You don't ask for much, my honest servant. You might have asked for gold or money," said the king and then ordered a bag of wheat brought to the palace.
But when the counting began, with one grain for the first square, two for the second, four for the third, and so on, the bag was emptied before the 20th square. More bags were brought, but the number of grain needed for the following squares increased so rapidly that the king was not able to keep his promise even with all the crops in the whole India! In fact, he would have needed 8 466 744 073 709 511 615 grains, which would be as much as that they would produce in about 2000 years!
Now tile king found himself deep in debt to his minister. He had either to face the terrible trouble all his life or to cut off Sissa's head, the litter of which, it is said was what he finally chose.
41. This story tells us ______.
A. how cruel the king was
B. how clever the minister was
C. Sissa was a famous mathematician
D. how the game of chess came into being
Passage Two
There are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual the sort of environment in which he is reared (抚养). If an individual is handicapped environmentally, it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable.
The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate foster (收养) homes. Peter was reared by parents of low intelligence in an isolated community with poor educational opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark's IQ was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level.
36. This selection can be titled ______.
A. Measuring Your Intelligence
B. Intelligence and Environment
C. The Case of Peter and Mark
D. how the Brain Influences Intelligence
