题目内容

 

Against the supposition that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.

    This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over the next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.

    This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.

    Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone(臭氧) levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.

    “We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in the amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicted, 0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.

46. According to the new findings, taking steps to prevent northern forest fires may __________.

A. result in a warming climate     

B. cause the forest fires to occur more frequently

C. lead to a longer fire season             

D. protect the forests and the environment there

47. The following are all the immediate effects after a forest fire EXCEPT __________.

A. large amounts of greenhouse gases enter the atmosphere

B. the levels of ozone which is a type of oxygen increase

C. snow on the ground mirrors more sunlight back into space

D. ashes from the fire fall on the ice surface and take in more radiation from the sun

48. Earlier studies about northern forest fires __________.

A. analyze all aspects of how northern fires influence climate

B. indicate that forest fires will pollute the atmosphere

C. suggest that people should take measures to protect environment

D. suggest that the fires will speed up climate warming

49.The underlined phrase “soak up” in the last paragraph most probably means __________.

A. released         B. absorbed       C. created      D. distributed

50. From the passage we can draw a conclusion that forest fires in Alaska, Canada and Siberia may __________.

A. warm the climate as the supposition goes

B. allow more snow to reflect more sunlight into space and thus cool the climate

C. destroy large areas of forests and pollute the far-off sea ice

D. help to gain more energy rather than release more energy

 

【答案】

 

 A

 C

 D

 B

 B

【解析】             

 

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“Racism (种族歧视) is a grown-up disease,” declares the saying on Ruby Bridge’s website along with a photo of Mrs. Bridge today, a 6-year-old girl four decades ago. In the photo, she is walking up the steps of the William Frantz Public School in New Orleans, a little black girl accompanied by two officers who protect her on her way to school.
Her name then was Ruby Nell. It was Nov. 14, 1960. She was the first black child to enroll at this all-white elementary school according to the court order to desegregate in New Orleans schools. Her story is moving -- she was a very courageous child -- and remains a significant proof against intolerance (不宽容) of all kinds. Ruby’s photo brings out another powerful image on her website: Norman Rockwells symbolic painting for Look magazine on Jan. 14, 1964, “The Problem We All Live With.”
Rockwell was an illustrator of exceptional skill and charm. He produced a vast number of unforgettable images over a long career, many of them involving children. His American kids are innocent and appealing, but often, at the same time, decidedly naughty. His method was to photograph his models, and the resulting paintings were photographic. But it is revealing to see how the artist slightly changed facial expressions from photo to oil painting in order to make his paintings communicate with the viewer. Communication, even persuasion, lay at the back of his work; this was art for effect.
“The Problem We All Live With” belongs to Rockwell’s later work, when he began openly showing his strong belief in liberty. This is a highly persuasive image. Before he arrived at the final copy, one sketch (草图) shows the little girl closer to the two officers following her than to those in front. In the finished picture, the girl seems more determined, independent, and untouched. The unfriendly tomatoes thrown on the wall are behind her now, and she, is completely unaffected.
【小题1】Ruby Nell was protected by officers on her way to school, because   .

A.she was a little fighter against racism
B.she was very young, short and timid
C.she was the first black to study in an all-white school
D.she was chosen by the com t0be’wi’th white children
【小题2】According to the passage, “The Problem We All Live With” is a(n)     .
A.social program for American children
B.famous painting by Norman Rockwell
C.photo displayed on Ruby Bridges’ website
D.exhibition at the Norman Rockwell Museum
【小题3】The word “desegregate” in paragraph 2 probably means“   ”.
A.fight against the whiteB.end racial separation
C.struggle for freedomD.stop the black-white conflict
【小题4】The main topic of this passage is   .
A.how Rockwell encouraged Ruby to fight against racism
B.how Ruby won her fight to go to an all-white school
C.how Rockwell expressed his protest in .Iris work
D.how persuasive Rockwell’s earlier work of art is

As the railroads and the highways shaped the American West in the past centuries, a new electrical generating(发电)and transmission (输送) system for the 21st century will leave a lasting mark on the West, for better or worse. Much of the real significance of railroads and highways is not in their direct physical effect on the scenery, but in the ways that they affect the surrounding community. The same is true of big solar plants and the power lines that will be laid down to move electricity around.
The 19 th century saw land grants(政府拨地) offered to railroad companies to build the transcontinental railroads, leaving public land in between privately owned land. In much of the West, some of the railroad sections were developed while others remained undeveloped, and in both cases the landownership has presented unique challenges to land management. With the completion of the interstate highway system, many of the small towns, which sprang up as railway stops and developed well, have lost their lifeblood and died.
Big solar plants and their power lines will also have effects far beyond their direct footprint in the West. This is not an argument against building them. We need alternative energy badly, and to really take advantage of it we need to be able to move electricity around far more readily than we can now.
So trade-offs will have to be made. Some scenic spots will be sacrificed. Some species(物种) will be forced to move, or will be carefully moved to special accommodations. Deals will be struck to reduce the immediate effects.
The lasting effects of these trade-offs are another matter. The 21st century development of the American West as an ideal place for alternative energy is going to throw off a lot of power and money in the region. There are chances for that power and money to do a lot of good. But it is just as likely that they will be spent wastefully and will leave new problems behind, just like the railroads and the highways.
The money set aside in negotiated trade-offs and the institutions that control it will shape the West far beyond the immediate footprint of power plants and transmission lines. So let’s remember the effects of the railroads and the highways as we construct these new power plants in the West.
【小题1】What was the problem caused by the construction of the railways?

A.Small towns along the railways became abandoned.
B.Land in the West was hard to manage.
C.Some railroad stops remained underused.
D.Land grants went into private hands.
【小题2】What is the major concern in the development of alternative energy according to the last two paragraphs?
A.The use of money and power.
B.The transmission of power.
C.The conservation of solar energy.
D.The selection of an ideal place.
【小题3】What is the author’s attitude towards building solar plants?
A.Disapproving.B.Approving.C.Doubtful.D.Cautious.
【小题4】Which is the best title for the passage?
A.How the Railways Have Affected the West
B.How the Effects of Power Plants Can Be Reduced
C.How Solar Energy Could Reshape the West
D.How the Problems of the Highways Have Been Settled

It is not often realized that women held a high place in southern European societies in the 10 th and 11 th centuries. As wife, the woman was protected by the setting up of a dowry (嫁妆) or decimum. Admittedly, the purpose of this was to protect her against the risk of desertion (遗弃),but in reality its function in the social and family life of the time was much more important. The decimum was the wife’s right to receive a tenth of all her husband’s property. The wife had the right to withhold consent, in all transactions the husband would make, And more than just a right: the documents showed that she enjoyed a real power of decision, equal to that of her husband. In no case did the documents indicate any degree of difference in the legal status of husband and wife.
The wife shared in the management of her husband’s personal property, but the opposite was not always true. Women seemed perfectly prepared to defend their own inheritance(遗产,继承物)against husbands who tried to exceed their rights, and on occasion they showed a fine fighting spirit. A case in point is that of Maria, Vivas, a Catalan woman of Barcelona. Having agreed with her husband Miro to sell a field she had inherited, for the needs of the household, she insisted on compensation. None being offered, she succeeded in dragging her husband to the scribe to have a contract duly drawn up assigning her a piece of land from Miro’s personal inheritance. The unfortunate husband was obliged to agree, as the contract says, “for the sake of peace.” Either through the dowry or through being hot-tempered, the Catalan wife knew how to win herself, within the context of the family, a powerful economic position.
【小题1】 A decimum was      .

A.the wife’s inheritance from her father
B.a gift of money to the new husband
C.a written contract
D.the wife’s right to receive one-tenth of her husband’s property
【小题2】 In the society described in the passage, the legal standing of the wife in marriage was      .
A.higher than that of her husband B.lower than that of her husband
C.the same as that of her husbandD.higher than that of a single woman
【小题3】 What compensation did Maria Vivas get for the field?
A.Some of the land Miro had inherited.B.A tenth of Miro’s land.
C.Money for household expenses.D.Money from Miro’s inheritance.
【小题4】 Which of the following is Not mentioned as an effect of the dowry system?
A.The husband had to share the power of decision in marriage.
B.The wife was protested from desertion.
C.The wife gained a powerful economic position.
D.The husband was given control over his wife’s property.

As the railroads and the highways shaped the American West in the past centuries, a new electrical generating(发电)and transmission (输送) system for the 21st century will leave a lasting mark on the West, for better or worse. Much of the real significance of railroads and highways is not in their direct physical effect on the scenery, but in the ways that they affect the surrounding community. The same is true of big solar plants and the power lines that will be laid down to move electricity around.

The 19 th century saw land grants(政府拨地) offered to railroad companies to build the transcontinental railroads, leaving public land in between privately owned land. In much of the West, some of the railroad sections were developed while others remained undeveloped, and in both cases the landownership has presented unique challenges to land management. With the completion of the interstate highway system, many of the small towns, which sprang up as railway stops and developed well, have lost their lifeblood and died.

Big solar plants and their power lines will also have effects far beyond their direct footprint in the West. This is not an argument against building them. We need alternative energy badly, and to really take advantage of it we need to be able to move electricity around far more readily than we can now.

So trade-offs will have to be made. Some scenic spots will be sacrificed. Some species(物种) will be forced to move, or will be carefully moved to special accommodations. Deals will be struck to reduce the immediate effects.

The lasting effects of these trade-offs are another matter. The 21st century development of the American West as an ideal place for alternative energy is going to throw off a lot of power and money in the region. There are chances for that power and money to do a lot of good. But it is just as likely that they will be spent wastefully and will leave new problems behind, just like the railroads and the highways.

The money set aside in negotiated trade-offs and the institutions that control it will shape the West far beyond the immediate footprint of power plants and transmission lines. So let’s remember the effects of the railroads and the highways as we construct these new power plants in the West.

1.What was the problem caused by the construction of the railways?

A.Small towns along the railways became abandoned.

B.Land in the West was hard to manage.

C.Some railroad stops remained underused.

D.Land grants went into private hands.

2.What is the major concern in the development of alternative energy according to the last two paragraphs?

A.The use of money and power.

B.The transmission of power.

C.The conservation of solar energy.

D.The selection of an ideal place.

3.What is the author’s attitude towards building solar plants?

A.Disapproving.      B.Approving.         C.Doubtful.          D.Cautious.

4.Which is the best title for the passage?

A.How the Railways Have Affected the West

B.How the Effects of Power Plants Can Be Reduced

C.How Solar Energy Could Reshape the West

D.How the Problems of the Highways Have Been Settled

 

It is not often realized that women held a high place in southern European societies in the 10 th and 11 th centuries. As wife, the woman was protected by the setting up of a dowry (嫁妆) or decimum. Admittedly, the purpose of this was to protect her against the risk of desertion (遗弃),but in reality its function in the social and family life of the time was much more important. The decimum was the wife’s right to receive a tenth of all her husband’s property. The wife had the right to withhold consent, in all transactions the husband would make, And more than just a right: the documents showed that she enjoyed a real power of decision, equal to that of her husband. In no case did the documents indicate any degree of difference in the legal status of husband and wife.

The wife shared in the management of her husband’s personal property, but the opposite was not always true. Women seemed perfectly prepared to defend their own inheritance(遗产,继承物)against husbands who tried to exceed their rights, and on occasion they showed a fine fighting spirit. A case in point is that of Maria, Vivas, a Catalan woman of Barcelona. Having agreed with her husband Miro to sell a field she had inherited, for the needs of the household, she insisted on compensation. None being offered, she succeeded in dragging her husband to the scribe to have a contract duly drawn up assigning her a piece of land from Miro’s personal inheritance. The unfortunate husband was obliged to agree, as the contract says, “for the sake of peace.” Either through the dowry or through being hot-tempered, the Catalan wife knew how to win herself, within the context of the family, a powerful economic position.

1. A decimum was      .

A.the wife’s inheritance from her father

B.a gift of money to the new husband

C.a written contract

D.the wife’s right to receive one-tenth of her husband’s property

2. In the society described in the passage, the legal standing of the wife in marriage was      .

A.higher than that of her husband

B.lower than that of her husband

C.the same as that of her husband

D.higher than that of a single woman

3. What compensation did Maria Vivas get for the field?

A.Some of the land Miro had inherited.

B.A tenth of Miro’s land.

C.Money for household expenses.

D.Money from Miro’s inheritance.

4. Which of the following is Not mentioned as an effect of the dowry system?

A.The husband had to share the power of decision in marriage.

B.The wife was protested from desertion.

C.The wife gained a powerful economic position.

D.The husband was given control over his wife’s property.

 

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