题目内容
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Not until the early years of the 19th century________what heat is．
A.man knew
B.did man know
C.did not man know
D.man did know
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更多“Not until the early years of t…”相关的问题
Not until the early 1900s ______ to vote in the United States．
A．women were allowed
B．they allowed women
C．when women were allowed
D．were women allowed
Although ______ named until 1812, the metal was used as early as 5100 B.C..
A．it was
B．was not
C．was
D．it was not
One way to represent the evolution of life is to compress the 4. 6-billion-year history of Earth into a 1-year-long film. In such a film, Earth forms as the film begins on January 1, and through all of January and February it cools and is cratered(变成坑状) and the first oceans form. But those oceans remain lifeless until sometime in March or early April, when the first living things develop. The 4-billion-year history of Precambrian (前寒武纪) evolution lasts until the film reaches mid-November, when primitive ocean life begins to evolve into complex organisms such as trilobites(三叶虫).
If we examine the land instead of the oceans, we find a lifeless waste. But once our film shows plant and animal life on the land, about November 28, evolution proceeds rapidly. Dinosaurs, for example, appear on about December 12 and vanish by Christmas Eve, as mammals (哺乳动物) and birds flourish.
Throughout the 1 -year-run of our film there are no humans, and even during the last days of the year as the mammals rise and dominate the landscape, there are no people. On the early evening of December 31, vaguely human forms move through the grasslands, and by late evening they begin making stone tools. The Stone Age lasts until about 11:45 p. m. , and the first signs of civilization, towns and cities, do not appear until 11:54 p. m. The Christian era begins only 14 seconds before the New Year, and the Declaration of Independence is signed with one second to spare.
In comparing all of Earth's geological evolution to one calendar year, the author shows
A．just how recently humanity has arrived on the scene
B．just how simple it is to understand the history of Earth
C．just how early humanity appears on planet Earth
D．just how difficult it is to understand the history of Earth
What is the main topic of the passage？ ()
A．The need for agricultural advances to help feed a growing population.
B．The development of safer machines demanded by the labor movement.
C．Machinery that contributed to the agricultural revolution.
D．New Jersey as a leader in the agricultural revolution.
Fresco, one of the greatest of all art forms, is done with watercolor. It is created by mixing pigments and water and applying these to wet plaster. Of the thousands of people who stand under Michelangelo's heroic ceiling in the Sistine Chapel, very few are aware that they are looking at perhaps the greatest watercolor painting in the world.
The invention of oil painting by the Flemish masters in the fifteenth century led to a decline in fresco painting, and for the next several centuries watercolor was used mainly as a medium for doing preliminary sketches or as a tool for study. It was not until the eighteenth and nineteenth centuries that English painters reinstated watercolor as a serious art form. The English have a notorious love for the outdoors and also great fondness for small, intimate pictures. The subdued tones of watercolor had a remarkably strong appeal for them.
The popularity of watercolor continued to grow until in the twentieth century the United States passed England as the center for watercolor, producing such well - known watercolor artists as Thomas Eakins and Andrew Wyeth.
What is the main theme of the passage？
A．The decline of fresco painting.
B．The predominance of oils over watercolor.
C．The rediscovery of watercolor in England.
D．The origin and development of watercolor.
听力原文： During the early American colonial years, corn was more plentiful than wheat, so corn bread was more common than wheat bread. Friendly Indians showed colonists how to grow corn and how to prepare it for food and pioneer women then improved the Indian cooking techniques. When people traveled, they went on foot or horseback, sleeping and eating in the forests. They carried corn bread for sustenance. The corn bread came to be called journeyeake. Later when roads and taverns were built and stagecoaches carried passengers, journeycake became johnnycake, a name many easterners still use for corn bread. The kinds of bread made with cornmeal were and still are almost without limit. Every region has its specialties.
From the start, southerners showed a preference for white eorm:neal, northerners for yellow. And pioneers on the frontier, when they ran out of yeast, made salt-rising bread. They stirred together water, a little water ground cornmeal, potatoes, and salt. They set the mixture, uncovered, in a warm place until it absorbed bacteria from the air and began to ferment. Then they removed the potatoes and used the liquid as leavening for their bread, made with white flour.
(33)
A．The colonists preferred corn bread.
B．Corn was more abundant.
C．The colonists did not know how to make wheat bread.
D．Corn bread did not spoil as rapidly as wheat bread did.
The bathtub was a wash tub (澡盆) filled with water from the stove. If you were small enough you could sit down by drawing your knees to your chest, Otherwise, you washed yourself standing up. Often all the women and girls in the family bathed together. Then the men and boys did. In most families this was Saturday-night because Sundays they went to church.
A small number of families did have running water. But that depended on Whether there was a water system where they lived and on whether they could afford the plumbing (水管实施 ). Some people had bathtubs in their homes as early as 1895. But many others did not have their first bath in a bathtub until 1910 or later when they were fifteen or sixteen years old.
In the first paragraph, "took care of" means ______.
A．kept
B．looked after
C．used
D．kept and used
Hollywood (好莱坞) is a suburb of the city of Los Angeles (洛杉矶) in California. Until 1908 it was no more than a quiet village on the northern side of the city, but in that year William Selig, one of the first people to make films, set up a film-producing workshop (车间) in Los Angeles. By 1911 , David and William Horsely had set up another one in Hollywood, and at about the same time oil was discovered in the neighborhood. Thus Hollywood quickly became a big district given over to the film industry and to oil wells
The early makers of films found Hollywood a good place for their work because of its clear, sunny, rain-free weather, which allowed pictures to be taken all the year round. Also, it was known that every kind of scene needed for films, whether town, country, sea, desert or snow-capped mountains, could be found within the area of California. Today, when most films can be "shot" (拍摄) under cover by man made lighting, these advantages (优点) are not so important.
In spite of a drop in its importance, Hollywood remains a center of film production although now making more films for television than for the cinema.
David and William Horsely ______.
A．were the first to set up a film-producing workshop in Hollywood
B．discovered oil in and around Hollywood
C．followed William Selig to Hollywood and settled down there
D．turned Hollywood into a film producing center of the country
A poignant is the dilemma that parents find themselves in today as a consequence of successive radical changes in the image of the child in society and in our theories of childrearing.
At the turn of the century in the United States, for example, the dominant theory reflected the prevailing scientific belief in the importance of heredity in determining behavior. Mothers who had never heard of Darwin or Spencer raised their babies in ways consistent with the world views of these thinkers. Vulgarized and simplified, passed from person to person, these world views were reflected in the conviction of millions of ordinary people that "bad children are a result of bad stock", that "crime is hereditary", etc.
In the early decades of the century, these attitudes fell back before the advance of environmentalism. The belief that environment shapes personality, and that the early years are the most important, created a new image of the child. The work of Watson and Pavlov began to creep into the public ken. Mothers reflected the new behaviorism, refusing to feed infants on demand, refusing to pick them up when they cried, weaning early to avoid prolonged dependency.
A study by Martha Wolfenstein has compared the advice offered parents in seven successive editions of INFANT CARE, a handbook issued by the United Stats Children's Bureau between 1914 and 1951. She found distinct shifts in the preferred methods for dealing with weaning and thumb-sucking. It is clear from this study that by the late thirties still another image of the child had gained ascendancy. Freudian concepts swept in like a wave and revolutionized childrearing practices. Suddenly, mothers began to hear about "the rights of infants" and the need for "oral gratification". Permissiveness became the order of the day.
The passage tells us that any new knowledge will have a powerful influence on ordinary people if ______.
A．it is simple and understandable
B．it is advocated by eminent persons
C．it has been put into practice and prove tree
D．it bas something to do with their immediate concerns
Child and adolescent psychiatrists(精神病学家) recommend that the child be told about the adoption by the adoptive parents. Children should be told about their adoption in a way that they can understand.
There are two different views on when a child should be told about the adoption. Many experts believe the child should be told at earliest age possible. This approach provides the child an early opportunity to accept and integrate the concept of being "adopted". Other experts believe that telling a child too early may confuse the young child who can't really understand the event. These experts advise waiting until the child is older.
In either case, children should learn of their adoption from the adoptive parents. This helps give the message that adoption is good and that the child can trust the parents. If the child first learns about the adoption intentionally or accidentally from someone other than parents, the child may feel angry and mistrust towards the parents, and may view the adoption as bad or shameful because it was kept a secret.
Adopted children will want to talk about adoption and parents should encourage this process. Several excellent children's story books are available in bookstores which help parents tell the child being adopted.
Parents who have an adopted child want to know ______.
A．how to hide the fact that he or she is adopted
B．when the child was born exactly
C．whether they should tell the child that he or she is adopted
D．if the child has certain disease
