Against the supposition than 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 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 next several centuries as 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 faroff 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 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 predicated, 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.
1.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
2.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
3.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
4.The underlined phrase “soak up” in the last paragraph most probably means ________.
A.released B.absorbed C. created D.distributed
高三英语阅读理解困难题
Against the supposition than 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 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 next several centuries as 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 faroff 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 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 predicated, 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.
1.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
2.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
3.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
4.The underlined phrase “soak up” in the last paragraph most probably means ________.
A.released B.absorbed C. created D.distributed
高三英语阅读理解困难题查看答案及解析
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.
1..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 |
2..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 |
3..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 |
4..The underlined phrase “soak up” in the last paragraph most probably means __________.
A.released | B.absorbed | C.created | D.distributed |
5..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 |
高三英语阅读理解中等难度题查看答案及解析
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 had suggested that fires in northern regions sped up climate warming because greenhouse gases from burning trees and plants were released into the atmosphere and thus trapped 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 ashes from the fire fell on faroff 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 said.They 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.
1.According to the new findings,taking steps to prevent northern forest fires may________.
A.result in a warming climate
B.cause more forest fires
C.lead to a longer fire season
D.protect the forests there
2.The following are 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 and darken the surface
3.Earlier studies about northern forest fires________.
A.had analyzed all aspects of how northern fires influenced climate
B.had indicated that forest fires would pollute the atmosphere
C.had suggested that people should take measures to protect environment
D.had suggested that the fires would speed up climate warming
4.We can infer that forest fires in Alaska,Canada and Siberia may________.
A.warm the climate as the supposition goes
B.cool the climate by reflecting more sunlight into atmosphere
C.make more space for the growth of young trees
D.help to gain more energy rather than release more energy
高三英语阅读理解中等难度题查看答案及解析
Against the assumption 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 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 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 predicated, 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.
1. 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
2. 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
3. The underlined phrase “soaked up” in the last paragraph most probably means ________.
A. released B. absorbed C. created D. disturbed
4. From the text we can draw a conclusion that forest fires in Alaska, Canada and Siberia may ______.
A. warm the climate as the assumption 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
高三英语阅读理解简单题查看答案及解析
Against the assumption 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 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 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 predicated, 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.
1.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
2.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
3.The underlined phrase “soaked up” in the last paragraph most probably means ________.
A. released B. absorbed C. created D. disturbed
4.From the text we can draw a conclusion that forest fires in Alaska, Canada and Siberia may ______.
A. warm the climate as the assumption 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
高三英语阅读理解中等难度题查看答案及解析
A Race Against Death
It was a cold January in 1925 in Nome, Alaska. The town was cut off from the rest of the world due to heavy snow.
On the 20th of that month, Dr. Welch _______a sick boy, Billy, and knew he had diphtheria, a deadly infectious(传染的) disease mainly affecting children. The children of Nome would be _______if it struck the town. Dr. Welch needed medicine as soon as possible to stop other kids from getting sick. _______, the closest supply was over 1,000 miles away, in Anchorage.
How could the medicine get to Nome? The town’s _______was already full of ice, so it couldn’t come by ship. Cars and horses couldn’t travel on the _______roads. Jet airplanes and big trucks didn’t exist yet.
_______January 26, Billy and three other children had died. Twenty more were _______. Nome’s town officials came up with a(n)_______. They would have the medicine sent by _______from Anchorage to Nenana. From there, dogsled(狗拉雪橇) drivers — known as "mushers" — would __________it to Nome in a relay(接力).
The race began on January 27. The first musher, Shannon, picked up the medicine from the train at Nenana and rode all night. __________he handed the medicine to the next musher, Shannon’s face was black from the extreme cold.
On January 31, a musher named Seppala had to __________a frozen body of water called Norton Sound. It was the most __________part of the journey. Norton Sound was covered with ice, which could sometimes break up without warning. If that happened, Seppala might fall into the icy water below. He would __________, and so would the sick children of Nome. But Seppala made it across.
A huge snowstorm hit on February 1. A musher named Kaasen had to brave this storm. At one point, huge piles of snow blocked his__________. He had to leave the trail(雪橇痕迹) to get around them. Conditions were so bad that it was impossible for him to __________the trail again. The only hope was Balto, Kaasen’s lead dog. Balto put his nose to the ground, __________to find the smell of other dogs that had traveled on the trail. If Balto failed, it would mean disaster for Nome. The minutes passed by. Suddenly, Balto began to __________. He had found the trail.
At 5:30 am on February 2, Kaasen and his dogs __________in Nome. Within minutes, Dr. Welch had the medicine. He quickly gave it to the sick children. All of them recovered.
Nome had been __________.
1.A.examined B.warned C.interviewed D.cured
2.A.harmless B.helpless C.fearless D.careless
3.A.Moreover B.Therefore C.Otherwise D.However
4.A.airport B.station C.harbor D.border
5.A.narrow B.snowy C.busy D.dirty
6.A.From B.On C.By D.After
7.A.tired B.upset C.pale D.sick
8.A.plan B.excuse C.message D.topic
9.A.air B.rail C.sea D.road
10.A.carry B.return C.mail D.give
11.A.Though B.Since C.When D.If
12.A.enter B.move C.visit D.cross
13.A.shameful B.boring C.dangerous D.foolish
14.A.escape B.bleed C.swim D.die
15.A.memory B.exit C.way D.destination
16.A.find B.fix C.pass D.change
17.A.pretending B.trying C.asking D.learning
18.A.run B.leave C.bite D.play
19.A.gathered B.stayed C.camped D.arrived
20.A.controlled B.saved C.founded D.developed
高三英语完形填空中等难度题查看答案及解析
Alaska’s Arctic lakes now freeze later and melt earlier in the year than in 1950,leaving them easy to suffer water loss from evaporation(蒸发)and possibly adding to local warming,a new study finds.The winter ice season near Barrow,Alaska,is shorter than in 1950,researchers reported Jan.30 in the journal The Cryosphere.
Lake ice is also thinner each winter.The scientists surveyed 402 lakes on the North Slope,where permafrost (permanently frozen ground)and shallow lakes dominate the areA. In 2011,the lake ice was 38 percent thinner than in 1950,and 22 percent fewer lakes froze through to their bottoms.
“When we saw the actual numbers we were shocked at how dramatic the change has been,”lead study author Cristina Surdu,of the University of Waterloo in Canada,said in a statement.Surdu and her co-authors analyzed the changes in lake—ice thickness and ice cover with satellite images and climate model simulations(satellite images are only available from 1991).
The climate models suggest the Arctic lakes froze almost six days later and broke up about 18 days earlier in the winter of 2011 compared with the winter of 1950.“The changes in ice and the shortened winter affect Northern communities that depend on ice roads to transport goods,”Surdu saiD. For example,every winter,oil companies build roads over frozen lakes to carry supplies to Prudhoe Bay.
“The dramatic changes in lake ice may also contribute to further warming of the entire region,because open water on lakes contributes to warmer air temperatures,”Surdu saiD. The Arctic is warming twice as fast as the rest of the planet,for reasons that may include its layered atmosphere,which traps heat,and the loss of sea ice and snow cover,which help reflect the sun’s energy when present.
1.What does the text mainly tell us?
A. Arctic 1akes now freeze earlier and melt 1ater.
B. Alaska’s local warming is decreasing sharply.
C. Arctic lakes are losing ice.
D. Arctic lakes hold more flesh water than before.
2.According to the text,the great changes of Alaska’s Arctic lakes ________.
A. are totally beyond Surdu’s expectations
B. are completely within Surdu’s expectations
C. come as no surprise to Surdu and her co-authors
D. come as a great excitement to Surdu
3.How many days was the winter ice season of Arctic 1akes in 2011 shorter than that in 1950?
A. 6 days.
B. 12 days.
C. 18 days.
D. 24 days.
4.What is the last paragraph mainly about according to Surdu?
A. What reflects the sun’s energy.
B. How its layered atmosphere traps heat.
C. Why our planet is warming.
D. Why the Arctic region is becoming warmer.
高三英语阅读理解中等难度题查看答案及解析
To warm himself, the sailor sat in front of the fire rubbing one bare foot against .
A. another B. the other C. other D. either
高三英语单项填空中等难度题查看答案及解析
MEGADIM, Israel (AP)-The worst forest fire in Israel's history on Thursday destroyed one of the country's few forested areas, killing at least 36 guards on their way to rescue prisoners there, destroying homes and forcing the evacuation (疏散) of thousands. The fire ran through the Carmel forest in Israel's Galilee, reaching the coastal city of Haifa, jumping from place to place in the forest. The fire broke out around midday and quickly spread and was still burning out of control as midnight approached. Investigators (调查者) supposed that the fire could have been set accidentally, or it might have been a criminal act, but pretty much ruled out (排除) some sort of attack by a Palestinian group. “This is a huge disaster,” Prime Minister Benjamin Netanyahu said. “The government is using all means to control the fire.” He said some countries such as Cyprus, Italy, Russia and Greece agreed to provide backup. Most of the dead were Prison Service guards racing through the fire toward a prison to evacuate the prisoners, most of them Palestinians. A tree fell across the road, blocking their bus. Some guards were burned alive inside, while others died as they tried to escape. Fourteen bodies were found near the burnt bus 10 hours after the fire started. The fire heavily damaged one of Israel's few large forests, made up of natural growth and planted areas, a favorite place for camping and a home for dozens of species of wildlife. Forestry workers tried to evacuate animals from the fire. The forest recovered slowly from a fire in 1989, but experts said Thursday's big fire was many times worse.
1.Some Prison Service guards died when they tried to ________.
A.control the running prisoners | B.put out the fierce forest fire |
C.get away from the burning bus | D.save the guards trapped in the fire . |
2.According to the investigators, which of the following might be the cause of the fire?
A.Prisoners set the fire purposely. | B.The fire broke out all by itself. |
C.A Palestinian group did it. | D.The fire was started by accident. |
3.We learn from the text that ________.
A.all of the dead were Prison Service guards |
B.the forest once suffered a fire in the 1980s |
C.the animals didn't suffer from the fire |
D.the fire caused 50 deaths altogether . |
4.The text is mainly about ________.
A.the worst forest fire in Israel's history |
B.the actual cause of the worst ever forest fire |
C.the damage caused by the forest fire |
D.the government's efforts in controlling the fire |
高三英语阅读理解简单题查看答案及解析
A
Starting in 1972,the National Park Service established a policy for forest fires called Natural Burn.It was acknowledged that some forest fires,such as those which were caused by lighthing were necessary for forests to maintain(保持)balanced ecosystems,so the fire should be allowed to burn.However, a big fire in Yellowstone National Park in 1988 caused this policy to be abandbned since the fire was initially(最初)allowed to burn yet soon out of contro1.As a result,the fire of 1988 destroyed much of Yellowstone,which is America’s oldest and most beloved national park.Massive areas of plants were destroyed,and large empty spaces and acres of burned and blackened trees greeted visitors.The rivers and streams were choked with ash,and the ecosystem of the park was changed beyond repair.
In addition,great numbers of animals were killed by the fires that burned out of control. The fires were driven by high winds,moving as many as ten miles a day.Many small animals died in the flames.The fires’rapid advances gave the wildlife little chance to escape.Even today,few of these small forest animals have returned to live in the park. In the years immediately following the fires,the numbers of visitors declined. rapidly.No one was interested in seeing a blackened and treeless park on vacation.Yellowstone had previously been famous for its amazing views and unique geological formations such as the geyser(喷泉) Old Faithful.But now its reputation as America's wonder is damaged permanently.
1.Natural Burn was adopted because some forest fires were ______________
A. hard to put out
B.started by lightning
C. good for the balance of nature
D.approved by National Park Service
2.The big fire in Yellowstone in 1988 _______________.
A.became out of control at first
B.brought the natural burn policy to an end
C.was allowed to burn continuously
D.destroyed the park completely
3.Why were so many animals killed in the big fire?
A. Because winds were blown from high places.
B. Because the animals moved only ten miles a day.
C. Because the animals lived in lower places.
D. Because strong winds contributed to the fire a lot.
4.Yellowstone was famous for its ______________.
A.rare animals
B.unique plants
C.beautiful scenery
D.1ittle streams
5.The text probably comes from _____________.
A.a geography magazine
B.a news report
C.a commercial ad
D.a science fiction
高三英语阅读理解中等难度题查看答案及解析