Energy independence. It has a nice ring to it. Doesn’t it? If you think so, you’re not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession.
“Energy independence” and its rhetorical (修辞的) companion “energy security” are, however, slippery concepts that are rarely through, though. What is it that we want independence from, exactly?
Most people would probably say that they want to be independent from imported oil. But there are reasons that we buy all that oil from elsewhere.
The first reason is that we need it to keep our economy running. Yes, there is a trickle（涓涓细流）of biofuel（生物燃料）available, and more may become available, but most biofuels cause economic waste and environmental destruction.
Second, Americans have basically decided that they don’t really want to produce all their own oil. They value the environmental quality they preserve over their oil imports from abroad. Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection. To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports?
Third, there are benefits to trade. It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit. And although you don’t read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries.
There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to maintain its economy. When that flow is interrupted, we feel the pain in short supplies and higher prices, at the same time, we derive massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world.
1.What does the author think of biofuels?
A. They keep America’s economy running healthily.
B. They prove to be a good alternative to petroleum.
C. They do not provide a sustainable energy supply.
D. They cause serious damage to the environment.
2.Why does America rely heavily on oil imports?
A. It wants to expand its storage of crude oil.
B. Its own oil reserves are quickly running out.
C. It wants to keep its own environment intact.
D. Its own oil production falls short of demand.
3.What does the author say about oil trade?
A. It proves profitable to both sides.
B. It improves economic efficiency.
C. It makes for economic prosperity.
D. It saves the cost of oil exploration.
高三英语阅读理解中等难度题
Energy independence. It has a nice ring to it. Doesn’t it? If you think so, you’re not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession(经济衰退).
“Energy independence” and its rhetorical (修辞的) companion “energy security” are, however, slippery concepts that are rarely though through. What is it we want independence from, exactly?
Most people would probably say that they want to be independent from imported oil. But there are reasons that we buy all that old from elsewhere.
The first reason is that we need it to keep our economy running. Yes, there is a trickle（涓涓细流）of biofuel（生物燃料）available, and more may become available, but most biofuels cause economic waste and environmental destruction.
Second, Americans have basically decided that they don’t really want to produce all their own oil. They value the environmental quality they preserve over their oil imports from abroad. Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection. To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports?
Third, there are benefits to trade. It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit. And although you don’t read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries.
There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to maintain its economy. When that flow is interrupted, we feel the pain in short supplies and higher prices, At the same time, we derive massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world.
1.What does the author say about energy independence for America?
A. It sounds very attractive.
B. It will bring oil prices down.
C. It ensures national security.
D. It has long been everyone’s dream.
2.What does the author think of biofuels?
A. They keep America’s economy running healthily.
B. They prove to be a good alternative to petroleum.
C. They do not provide a sustainable energy supply.
D. They cause serious damage to the environment.
3.Why does America rely heavily on oil imports?
A. It wants to expand its storage of crude oil.
B. Its own oil reserves are quickly running out.
C. It wants to keep its own environment undamaged.
D. Its own oil production falls short of demand.
4.What is the author’s purpose in writing the passage?
A. To justify America’s dependence on oil imports.
B. To arouse Americans’ awareness of the energy crisis.
C. To stress the importance of energy conservation.
D. To explain the increase of international oil trade.
高三英语阅读理解中等难度题查看答案及解析
Energy independence. It has a nice ring to it. Doesn’t it? If you think so, you’re not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession.
“Energy independence” and its rhetorical (修辞的) companion “energy security” are, however, slippery concepts that are rarely through, though. What is it that we want independence from, exactly?
Most people would probably say that they want to be independent from imported oil. But there are reasons that we buy all that oil from elsewhere.
The first reason is that we need it to keep our economy running. Yes, there is a trickle（涓涓细流）of biofuel（生物燃料）available, and more may become available, but most biofuels cause economic waste and environmental destruction.
Second, Americans have basically decided that they don’t really want to produce all their own oil. They value the environmental quality they preserve over their oil imports from abroad. Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection. To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports?
Third, there are benefits to trade. It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit. And although you don’t read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries.
There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to maintain its economy. When that flow is interrupted, we feel the pain in short supplies and higher prices, at the same time, we derive massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world.
1.What does the author think of biofuels?
A. They keep America’s economy running healthily.
B. They prove to be a good alternative to petroleum.
C. They do not provide a sustainable energy supply.
D. They cause serious damage to the environment.
2.Why does America rely heavily on oil imports?
A. It wants to expand its storage of crude oil.
B. Its own oil reserves are quickly running out.
C. It wants to keep its own environment intact.
D. Its own oil production falls short of demand.
3.What does the author say about oil trade?
A. It proves profitable to both sides.
B. It improves economic efficiency.
C. It makes for economic prosperity.
D. It saves the cost of oil exploration.
高三英语阅读理解中等难度题查看答案及解析
Energy independence has a nice ring to it．Doesn’t it? If you think so, you’re not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession.
“Energy independence” and its rhetorical （修辞的） companion “energy security” are, however, slippery concepts that are rarely though through．What is it we want independence from, exactly?
Most people would probably say that they want to be independent from imported oil．But there are reasons that we buy all that old from elsewhere.
The first reason is that we need it to keep our economy running．Yes, there is a trickle（涓涓细流）of biofuel（生物燃料）available, and more may become available, but most biofuels cause economic waste and environmental destruction.
Second, Americans have basically decided that they don’t really want to produce all their own oil．They value the environmental quality they preserve over their oil imports from abroad．Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection．To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports?
Third, there are benefits to trade．It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit．And although you don’t read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries.
There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to maintain its economy．When that flow is interrupted, we feel the pain in short supplies and higher prices．At the same time, we obtain massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world.
1.What does the author say about energy independence for America?
A．It sounds very attractive．
B．It ensures national security．
C．It will bring oil prices down
D．It has long been everyone’s dream.
2.Why does America rely heavily on oil imports?
A．It wants to expand its storage of crude oil（原油）.
B．Its own oil reserves are quickly running out.
C．It wants to keep its own environment undamaged.
D．Its own oil production falls short of demand．
3.What does the author say about oil trade?
A．It proves profitable to both sides．
B．It improves economic efficiency．
C．It makes for economic prosperity．
D．It saves the cost of oil exploration．
高三英语阅读理解中等难度题查看答案及解析
E
Energy independence． It has a nice ring to it． Doesn't it？ If you think so， you're not alone，because energy independence has been the dream of American president for decades， and never more so than in the past few years， when the most recent oil price shock has been partly responsible for kicking off the great recession（经济衰退）．
"Energy independence"and its rhetorical（修辞的） companion"energy security"are， however，slippery concepts that are rarely though through． What is it we want independence from， exactly？
Most people would probably say that they want to be independent from imported oil．But there are reasons that we buy all that old from elsewhere．
The first reason is that we need it to keep our economy running． Yes， there is a trickle（涓涓细流）of biofuel（生物燃料）available， and more may become available， but most biofuels cause economic waste and environmental destruction．
Second， Americans have basically decided that they don't really want to produce all their own oil． They value the environmental quality they preserve over their oil imports from abroad． Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection． To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports？
Third， there are benefits to trade． It allows for economic efficiency， and when we buy things from places that have lower production costs than we do， we benefit． And although you don't read about this much， the United States is also a large exporter of oil products， selling about 2 million barrels of petroleum products per day to about 90 countries．
There is no question that the United States imports a great deal of energy and， in fact， relies on that steady flow to maintain ite economy． When that flow is interrupted， we feel the pain in short supplies and higher prices． At the same time， we derive massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world．
1.From the passage， we know that biofuels ．
A．keep America's economy running healthily
B．prove to be a good alternative to petroleum
C．do not provide a sustainable energy supply
D．cause serious damage to the environment
2.Why does America rely heavily on oil imports？
A．Its own oil production falls short of demand．
B．Its own oil reserves are quickly running out．
C．It wants to keep Its own environment undamaged．
D．It wants to expand its storage of crude oil．
3.What can we conclude from the last paragraph？
A．America doesn't have enough oil supplies．
B．People can benefit more from importing oil．
C．Energy independence is significant for Americans．
D．Short of energy may cause economic depression．
4.What is the author's purpose in writing the passage？
A．To justify America's dependence on oil imports．
B．To stress the importance of energy conservation．
C．To arouse Americans' awareness of the energy crisis．
D．To explain the increase of international oil trade．
高三英语阅读理解中等难度题查看答案及解析
Energy independencehas a nice ring to it．Doesn't it？ If you think so，you're not alone，because energy independence has been the dream of American president for decades，and never more so than in the past few years，when the most recent oil price shock has been partly responsible for kicking off the great recession.
“Energy independence”and its rhetorical （修辞的） companion“energy security” are，however，slippery concepts that are rarely though through．What is it we want independence from，exactly？
Most people would probably say that they want to be independent from imported oil．But there are reasons that we buy all that old from elsewhere.
The first reason is that we need it to keep our economy running．Yes，there is a trickle（涓涓细流）of biofuel（生物燃料）available，and more may become available，but most biofuels cause economic waste and environmental destruction.
Second，Americans have basically decided that they don't really want to produce all their own oil．They value the environmental quality they preserve over their oil imports from abroad． Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection．To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports？
Third，there are benefits to trade．It allows for economic efficiency，and when we buy things from places that have lower production costs than we do，we benefit．And although you don't read about this much，the United States is also a large exporter of oil products，selling about 2 million barrels of petroleum products per day to about 90 countries.
There is no question that the United States imports a great deal of energy and，in fact，relies on that steady flow to maintain its economy．When that flow is interrupted，we feel the pain in short supplies and higher prices．At the same time，we obtain massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world.
1.What does the author say about energy independence for America？
A． It sounds very attractive．
B． It ensures national security．
C． It will bring oil prices down
D． It has long been everyone’s dream.
2.Why does America rely heavily on oil imports？
A． It wants to expand its storage of crude oil（原油）.
B． Its own oil reserves are quickly running out.
C． It wants to keep its own environment undamaged.
D． Its own oil production falls short of demanD．
3.What does the author say about oil trade？
A． It proves profitable to both sides．
B． It improves economic efficiency．
C． It makes for economic prosperity．
D． It saves the cost of oil exploration．
高三英语阅读理解中等难度题查看答案及解析
People talk about energy everywhere. Green energy, for example. Then, energy independence. It has a nice ring to it. Doesn’t it? If you think so, you’re not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession(经济衰退).
"Energy independence" and its rhetorical(修辞的) companion "energy security" are, however, unreliable concepts that are rarely thought through. What is it that we want independence from, exactly?
Most people would probably say that they want to be independent from imported oil. But there are reasons that we buy all that oil from elsewhere.
The first reason is that we need it to keep our economy running. Yes, there is a trickle(涓涓细流) of biofuel(生物燃料) available, and more may become available, but most biofuels cause economic waste and environmental destruction.
Second, Americans have basically decided that they don’t really want to produce all their own oil. They value the environmental quality they preserve over their oil imports from abroad. Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection. To what extent are Americans really willing to tolerate the environmental influence of domestic(国内的) energy production in order to cut back imports?
Third, there are benefits to trade. It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit. And although you don’t read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries.
There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to keep its economy stable. When that flow is interrupted, we feel the pain in short supplies and higher prices. At the same time, we get massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world.
1.What does the author say about energy independence for America?
A. It sounds very attractive.
B. It ensures national security.
C. It will bring oil prices down.
D. It will protect the environment.
2.Why does America rely heavily on oil imports?
A. It wants to expand its storage of raw oil.
B. Its own oil reserves are quickly running out.
C. Its own oil production falls short of demand.
D. It wants to keep its own environment untouched.
3.What does the author say about oil trade?
A. It improves economic efficiency.
B. It makes for economic recession.
C. It brings benefit only to the sellers.
D. It saves the cost of oil exploration.
4.What is the author’s purpose in writing the passage?
A. To explain the increase of international oil trade.
B. To raise Americans' awareness of the energy crisis.
C. To argue for America’s dependence on oil imports.
D. To stress the importance of energy protection.
高三英语阅读理解中等难度题查看答案及解析
E
People talk about energy everywhere．Green energy, for example．Then, energy independence．It has a nice ring to it．Doesn' t it? If you think so, you' re not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession（经济衰退）．
"Energy independence" and its rhetorical （修辞的） companion "energy security" are, however, unreliable concepts that are rarely thought through．What is it that we want independence from, exactly?
Most people would probably say that they want to be independent from imported oil．But there are reasons that we buy all that oil from elsewhere．
The first reason is that we need it to keep our economy running．Yes, there is a trickle （ 涓涓细流） ）of biofuel （ 生物燃料 ）available, and more may become available, but most biofuels cause economic waste and environmental destruction．
Second, Americans have basically decided that they don't really want to produce all their own oil．They value the environmental quality they preserve over their oil imports from abroad．Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection．To what extent are Americans really willing to tolerate the environmental influence of domestic（国内的） energy production in order to cut back imports?
Third, there are benefits to trade．It allows for eoonomic efficiency, and when we buy things from places that have lower production costs t1i;m we do, we benefit．And although you don't read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries．
There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to keep its economy stable．When that flow is interrupted, we feel the pain in short supplies and higher prices．At the same time, we get massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world．
1.What does the author say about energy independence for America?
A．It sounds very attractive．
B．It ensures national security．
C．It will bring oil prices down．
D．It will protect the environment．
2.Why does America rely heavily on oil imports?
A．It wants to expand its storage of raw oil．
B．Its own oil reserves are quickly running out．
C．Its own oil production falls short of demand．
D．It wants to keep its own environment untouched．
3.What does the author say about oil trade?
A．It improves economic efficiency．
B．It makes for economic recession．
C．It brings benefit only to the sellers．
D．It saves the cost of oil exploration．
4.What is the author' s purpose in writing the passage?
A．To explain the increase of international oil trade．
B．To raise Americans' awareness of the energy crisis．
C．To argue for America' s dependence on oil imports．
D．To stress the importance of energy protection．
高三英语阅读理解中等难度题查看答案及解析
Success in life doesn’t happen________.It’s the result of devoting your time and energy to what you’ve set out to do.
A．by accident B．by design
C．by force D．by choice
高三英语单项填空中等难度题查看答案及解析
Success in life doesn’t happen ________. It’s the result of devoting your time and energy to what you’ve set out to do.
| A．in case | B．by chance | C．in return | D．by nature |
高三英语单项填空中等难度题查看答案及解析
A new device (设备) works like a solar panel, except it doesn't harvest energy from the sun to produce electricity. Instead, it uses energy from the cold night sky.
In the center of this device is a thermoelectric generator (热电发电机), which uses the temperature difference between Earth and outer space to create electricity.
As long as one side of it is cooler than the other, the generator can produce electricity. The cooler side faces the sky and is attached to an aluminum plate. That plate is sealed under a transparent cover and surrounded with materials that keep heat out. It stays cooler than the surrounding air by getting rid of any heat it absorbs as infrared (红外线的) radiation. That radiation can zip up through the transparent cover and on toward outer space.
The bottom of the generator is attached to an exposed aluminum plate, which is warmed by the local air. At night, the top plate can get several degrees centigrade cooler than the bottom of the generator.
Researchers tested the device one clear December night in Stanford, Calif. The generator produced up to about 25 milliwatts of power per square meter of the device. That was just enough power to light a small electric lamp. Further improvements might develop its production to at least 500 milliwatts per square meter.
"It's a very clever idea," says Yuan Yang, a materials scientist who works at Columbia University in New York City. "The device still needs improving," he notes. "But this new device may be useful for backup power," Yang says. "It might also provide a bit of energy to people living in areas that lack electricity."
"The device could help power remote weather stations or other environmental devices," says Aaswath Raman, a materials scientist who worked on the device at the University of California, Los Angeles. What's more, this may be useful in areas that don't see sunlight for months at a time, Raman adds.
1.How is the device designed?
A.It includes two aluminum plates with different functions.
B.It is equipped with a heat resistant generator in the center.
C.Its two aluminum plates are exposed to air to keep heat out.
D.Its generator is sealed by a transparent cover to remain cool.
2.What is the limitation with the tested device?
A.It won't be expanded to be much larger.
B.It fails to produce electricity fast enough.
C.It is unable to power small electric lamps.
D.It produces a limited amount of electricity.
3.In paragraph 6, Yuan Yang mainly intends to .
A.evaluate the device on a positive basis
B.point out the problems with the device
C.explain the research work for the device
D.comment on Aaswath Raman's prediction
4.What can be a suitable title for the text?
A.Lamps Are Powered by the Energy From the Cold Night Sky
B.A Generator Producing Electricity Has Been Applied in Many Areas
C.Scientists Have Made a Breakthrough in Harvesting Green Energy
D.A Device Uses Energy From the Cold Night Sky to Produce Electricity
高三英语阅读理解中等难度题查看答案及解析