共用题干Global Warming1.Smoke is clouding our view of global warming,protecting the planet from perhaps threequarters of the greenhouse(温室)effect. That might sound like good news,but experts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.2.This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin,where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPCC).3. IPCC scientists have suspected for a decade that aerosols(浮质)of smoke and other partidles from burning rainforest,crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide(二氧化物)emissions. Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃.So the 0.6℃of warming over the past century would have been 0.8℃without aerosols.4.But the Berlin workshop concluded that the real figure is even higher—aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃.If so,the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now. But the bad news is that the climate system is much more sensitive to greenhouse gases than previously guessed.5.As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop.The increase of greenhouse gases_______.A: will influence future climate changeB:was somewhat surprisingC:will rise rapidlyD:was known to US allE:was much higher than had been expectedF:will drop dramatically

共用题干
Global Warming

1.Smoke is clouding our view of global warming,protecting the planet from perhaps threequarters of the greenhouse(温室)effect. That might sound like good news,but experts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.
2.This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin,where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPCC).
3. IPCC scientists have suspected for a decade that aerosols(浮质)of smoke and other partidles from burning rainforest,crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide(二氧化物)emissions. Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃.So the 0.6℃of warming over the past century would have been 0.8℃without aerosols.
4.But the Berlin workshop concluded that the real figure is even higher—aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃.If so,the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now. But the bad news is that the climate system is much more sensitive to greenhouse gases than previously guessed.
5.As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop.

The increase of greenhouse gases_______.
A: will influence future climate change
B:was somewhat surprising
C:will rise rapidly
D:was known to US all
E:was much higher than had been expected
F:will drop dramatically

参考解析

解析:文章第二段指出,结论是由杰出的大气科学家得出的。“杰出的科学家” 即权威科学家。
文章第三段提到了对浮质所产生的影响进行的计算,这个计算先于第四段所提及的计算,因而,被称为“先前的”计算。
柏林研讨会得出的结论是:真正的数字比这还要高——浮质可能已经把全球气候变暖的程度减少了四分之三。因此,本段讲的是柏林研讨会的佑算。
第五段讲的是科学家们关于浮质对气候变化影响的一致性的看法。
见文章第一段。
本题翻译:“柏林讨论会的结论有点令人吃惊”。因为这个结论认为:“浮质可能已经把全球气候变暖的程度减少了四分之三。”
文章第四段指出:然而,柏林研讨会得出的结论是,真正的数字比这还要高,“比这还要高”是说比第三段推测的数字要高,也就比人们预期的要高。
文章的最后一段提到了这个问题:温室气体在大气里不断聚积对未来气候变化的预测产生惊人的后果。

相关考题:

Over the past decades, sea icein the Arctic as a result of global warming.A . haddecreased Bdecreased C has been decreasingD is decreasing

Over the past decades, sea ice ____ in the Arctic (北极) as a result of global warming. A had decreasedB will decreaseC has been decreasingD is decresing

共用题干Lakes,Too,Feel Global WarmingThere's no doubt:In the last few decades,the average temperature on Earth has been higher than it has been in hundreds of years.Around the world,people are starting to measure the effects of global warming一 and trying to figure out what to do about it.Scientists recently used satellites to study the temperatures of lakes around the world,and they found that lakes are heating up.Between 1985 and 2009,satellites recorded the nighttime temperatures of the sur- faces of 167 lakes.During those 24 years,the lakes got warmer by an average of about 0.045 degreeCelsius per year.In some places,lakes have been warming by as much as 0.10 degree Celsius per year. At that rate,a lake may warm by a full degree Celsius in just 10 years.That difference may seem small一you might not even notice it in your bath.But in a lake,slightly warmer temperatures could mean more algae(水藻),and algae can make the lake poisonous to fish.The study shows that in some regions,lakes are warming faster than the air around them.This is impor- tant because scientists often use measurements of air temperature to study how Earth is warming. By using lake temperatures as well,scientists can get a better picture of global warming. The scientists say data on lakes give scientists a new way to measure the impact of climate change around the world.That's going to be useful,since no country is too big or too small to ignore climate change.Scientists aren't the only ones concerned.Everyone who lives on Earth is going to be affected by the rapid warming of the planet. Many world leaders believe we might be able to do something about it,especially by reducing theamount of greenhouse(温室)gases we put into the air.That's why the United Nations started the Framework Convention on Climate Change,or UNFCCC. Every year the convention meets,and representatives from countries around the world gather to talk about climate change and discuss global solutions to the challenges of a warming world.Lakes seem to be warming faster in Asia.A:RightB:WrongC:Not mentioned

共用题干Global WarmingFew people now question the reality of global warming and its effects on the world's climate. Many scientists1the blame for recent natural disasters on the increase2the world's temperatures and are convinced that,more than3before,the Earth is at4from the forces of the wind,rain and sun.5to them,global warming is making extreme weather events,6as hurricanes and droughts,even more7and causing sea levels all around the world to8.Environmental groups are putting9on governments to take action to reduce the 10 of carbon dioxide which is given 11 by factories and power plants,thus attacking the problem at its source. They are in12of more money being spent on research into so-lar,wind and wave energy devices,which could then replace existing power13.Some scientists,14believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow,we would have to wait15hundred years to notice the results. Global warming,it seems,is here to stay.2._________A: in B: at C: by D: to

共用题干第一篇Is Global Warming Good for Farming?You might think a little global warming is good for farming. Longer,warmer growing seasonsand more carbon dioxide(CO2)一what plant wouldn't love that?The agricultural industry basically agrees on that. But global warming's effects on agriculture would actually be quite complicated一and mostly not for the better.It's true that some crops will prosper on a warmer planet,but the key word there is"some."According to a government report,higher CO2 levels and longer growing seasons will increase yields for fruit growers in the Great Lakes region.But many major American crops already use CO2 so efficiently that more of it probably won't make much difference to them.What will make a difference are all the other things we'll have more or as temperatures rise一namely droughts(干旱),bugs and big storms. More droughts mean lower crop yields. Melting snow in the Western US will increase water availability in spring but decrease it in summer,forcing farmers to change cropping practices.As insects that eat crops adapt their migration patterns to our warmer climate,farmers will have to either use more insecticide or plant hardier crops.Farmers on both coasts are already starting to reap some of what the nation's fossil-fuel addiction has sown.Crops in those regions require a certain number of colder days or"winter chill"before they break dormancy(冬眠)and begin flowering. Too few cold days breaks the plants' flowering schedule which in turn affects pollination(授粉)and hurts yield.So,given how much is at stake for them,how are farm states working to shape climate legislation?In response to agricultural demands,the Waxman-Markey bill frees the agricultural industry from CO2 emission limits and gives up control over what activities guarantee carbon offset credit to the Agricultural Department.Some farmers一and some farm state congressional leaders一have argued that because plants convert CO2 into oxygen,agricultural lands store more CO2 than they emit. This is only theoretically true.What we can say with certainty is that,like most big industries,farming is fossil-fuel intensive一large quantities of CO2 are emitted from farm equipment such as irrigation pumps and tractors.Under the influence of global warming the yields of American crops will_______.A:be greatly enhancedB:be certainly reducedC:still remain stableD:be hard to predict

共用题干Lakes,Too,Feel Global WarmingThere's no doubt;In the last few decades,the average temperature on Earth has been higher than it hasbeen in hundreds of years,Around the world,people are starting to measure the effects of global warming一 and trying to figure out what to do about it.Scientists recently used satellites to study the temperatures of lakes around the world,and they found that lakes are heating up.Between 1985 and 2009,satellites recorded the nighttime temperatures of the sur- faces of 167 lakes.During those 24 years,the lakes got warmer一by an average of about 0.045 degreeCelsius per year.In some places,lakes have been warming by as much as 0.10 degree Celsius per year. At that rate,a lake may warm by a full degree Celsius in just 10 years?That difference may seem imull一you might not even notice it in your bath.But in a lake,slightly warmer temperatures could mean more algae(水藻),and algae can make the lake poisonous(有毒的)to fish.The study shows that in some regions,lakes are warming faster than the air around them.This is impor- tant because scientists often use measurements of air temperature to study how Earth is warming.By using lake temperatures as well,scientists can get a better picture of global warming.The scientists say data on lakes give scientists a new way to measure the impact of climate change around the world.That’s going to be useful,since no country is too big or too small to ignore climate change.Scientists aren't the only ones concerned、 Everyone who lives on Earth is going to be affected by the rapid warming ofthe planet.Many world leaders believe we might be able to do something about it,especially by reducing the amount of greenhouse(温室)gases we put into the air.That’s why the United Nations started the F'ramework Convention on Climate Change,or UNFCCC. Every year the convention meets,and representatives from countries around the world gather to talk about climate change and discuss global solutions to the challenges of a warming world.Scientists generally focus on air temperatures when studying global warming.A:Right B:WrongC:Not mentioned

共用题干Lakes,Too,Feel Global WarmingThere's no doubt;In the last few decades,the average temperature on Earth has been higher than it hasbeen in hundreds of years,Around the world,people are starting to measure the effects of global warming一 and trying to figure out what to do about it.Scientists recently used satellites to study the temperatures of lakes around the world,and they found that lakes are heating up.Between 1985 and 2009,satellites recorded the nighttime temperatures of the sur- faces of 167 lakes.During those 24 years,the lakes got warmer一by an average of about 0.045 degreeCelsius per year.In some places,lakes have been warming by as much as 0.10 degree Celsius per year. At that rate,a lake may warm by a full degree Celsius in just 10 years?That difference may seem imull一you might not even notice it in your bath.But in a lake,slightly warmer temperatures could mean more algae(水藻),and algae can make the lake poisonous(有毒的)to fish.The study shows that in some regions,lakes are warming faster than the air around them.This is impor- tant because scientists often use measurements of air temperature to study how Earth is warming.By using lake temperatures as well,scientists can get a better picture of global warming.The scientists say data on lakes give scientists a new way to measure the impact of climate change around the world.That’s going to be useful,since no country is too big or too small to ignore climate change.Scientists aren't the only ones concerned、 Everyone who lives on Earth is going to be affected by the rapid warming ofthe planet.Many world leaders believe we might be able to do something about it,especially by reducing the amount of greenhouse(温室)gases we put into the air.That’s why the United Nations started the F'ramework Convention on Climate Change,or UNFCCC. Every year the convention meets,and representatives from countries around the world gather to talk about climate change and discuss global solutions to the challenges of a warming world.UNFCCC’s annual meeting will be held in Mexico this year.A:RightB:WrongC:Not mentioned

共用题干第一篇A Sunshade(遮阳伞)for the PlanetEven with the best will in the world,reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time,resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.Fortunately,if the worst comes to the worst,scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now,that is a growing number of researchers are taking a fresh look at large-scale"geoengineering"projects that might be used to counteract global warming."I use the analogy of methadone,"says Stephen Schneider,a climate researcher at Stanford University in California who was among the first to draw attention to global warming."If you have a heroin addict,the correct treatment is hospitalization,and a long rehab. But if they absolutely refuse,methadone is better than heroin."Basically the idea is to apply"sunscreen"to the whole planet. One astronomer has come up with a radical plan to cool Earth:launch trillions of feather-light discs into space,where they would form a vast cloud that would block the sun's rays.It's controversial,but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 percent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere.That could be crucial,because even the most severe emissions control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century,and that would last for at least a century more.Scientists resist talking about their options because they don't want people to______.A:know what they are doingB:feel their efforts are uselessC:think the problem has been solvedD:see the real problem

共用题干第一篇A Sunshade(遮阳伞)for the PlanetEven with the best will in the world,reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time,resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.Fortunately,if the worst comes to the worst,scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now,that is a growing number of researchers are taking a fresh look at large-scale"geoengineering"projects that might be used to counteract global warming."I use the analogy of methadone,"says Stephen Schneider,a climate researcher at Stanford University in California who was among the first to draw attention to global warming."If you have a heroin addict,the correct treatment is hospitalization,and a long rehab. But if they absolutely refuse,methadone is better than heroin."Basically the idea is to apply"sunscreen"to the whole planet. One astronomer has come up with a radical plan to cool Earth:launch trillions of feather-light discs into space,where they would form a vast cloud that would block the sun's rays.It's controversial,but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 percent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere.That could be crucial,because even the most severe emissions control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century,and that would last for at least a century more.What does Stephen Schneider say about a heroin addict and methadone?A:Methadone is an effective way to treat a hard heroin addict.B:Methadone is not a correct way to treat a heroin addict.C:Hospitalization together with methadone can work effectively with a heroin addict.D:Methadone and heroin are equally effective in treating a heroin addict.

共用题干第一篇A Sunshade(遮阳伞)for the PlanetEven with the best will in the world,reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time,resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.Fortunately,if the worst comes to the worst,scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now,that is a growing number of researchers are taking a fresh look at large-scale"geoengineering"projects that might be used to counteract global warming."I use the analogy of methadone,"says Stephen Schneider,a climate researcher at Stanford University in California who was among the first to draw attention to global warming."If you have a heroin addict,the correct treatment is hospitalization,and a long rehab. But if they absolutely refuse,methadone is better than heroin."Basically the idea is to apply"sunscreen"to the whole planet. One astronomer has come up with a radical plan to cool Earth:launch trillions of feather-light discs into space,where they would form a vast cloud that would block the sun's rays.It's controversial,but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 percent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere.That could be crucial,because even the most severe emissions control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century,and that would last for at least a century more.According to the first two paragraphs,the author thinks that______.A:strong measures have been taken by the government to prevent global warmingB:It is impossible to prevent global warming by reducing carbon emissionsC:despite the difficulty,scientists have some options to prevent global warmingD:actions suggested by scientists will never be realized

共用题干第一篇A Sunshade(遮阳伞)for the PlanetEven with the best will in the world,reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time,resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.Fortunately,if the worst comes to the worst,scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now,that is a growing number of researchers are taking a fresh look at large-scale"geoengineering"projects that might be used to counteract global warming."I use the analogy of methadone,"says Stephen Schneider,a climate researcher at Stanford University in California who was among the first to draw attention to global warming."If you have a heroin addict,the correct treatment is hospitalization,and a long rehab. But if they absolutely refuse,methadone is better than heroin."Basically the idea is to apply"sunscreen"to the whole planet. One astronomer has come up with a radical plan to cool Earth:launch trillions of feather-light discs into space,where they would form a vast cloud that would block the sun's rays.It's controversial,but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 percent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere.That could be crucial,because even the most severe emissions control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century,and that would last for at least a century more.What is Stephen Schneider's idea of preventing global warming?A:To ask governments to take stronger measures.B:To increase the sunlight reaching the Earth.C:To apply sunscreen to the Earth.D:To decrease greenhouse gases.

共用题干第一篇A Sunshade(遮阳伞)for the PlanetEven with the best will in the world,reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time,resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.Fortunately,if the worst comes to the worst,scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now,that is a growing number of researchers are taking a fresh look at large-scale"geoengineering"projects that might be used to counteract global warming."I use the analogy of methadone,"says Stephen Schneider,a climate researcher at Stanford University in California who was among the first to draw attention to global warming."If you have a heroin addict,the correct treatment is hospitalization,and a long rehab. But if they absolutely refuse,methadone is better than heroin."Basically the idea is to apply"sunscreen"to the whole planet. One astronomer has come up with a radical plan to cool Earth:launch trillions of feather-light discs into space,where they would form a vast cloud that would block the sun's rays.It's controversial,but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 percent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere.That could be crucial,because even the most severe emissions control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century,and that would last for at least a century more.What is NOT true of the effectiveness of"sunscreen",according to the last paragraph?A:It deflects sunlight reaching the Earth to counteract the warming.B:It blocks the incident energy in the sun's rays.C:It is a controversial method.D:It decreases greenhouse gases in the atmosphere.

共用题干Lakes,Too,Feel Global WarmingThere's no doubt;In the last few decades,the average temperature on Earth has been higher than it hasbeen in hundreds of years,Around the world,people are starting to measure the effects of global warming一 and trying to figure out what to do about it.Scientists recently used satellites to study the temperatures of lakes around the world,and they found that lakes are heating up.Between 1985 and 2009,satellites recorded the nighttime temperatures of the sur- faces of 167 lakes.During those 24 years,the lakes got warmer一by an average of about 0.045 degreeCelsius per year.In some places,lakes have been warming by as much as 0.10 degree Celsius per year. At that rate,a lake may warm by a full degree Celsius in just 10 years?That difference may seem imull一you might not even notice it in your bath.But in a lake,slightly warmer temperatures could mean more algae(水藻),and algae can make the lake poisonous(有毒的)to fish.The study shows that in some regions,lakes are warming faster than the air around them.This is impor- tant because scientists often use measurements of air temperature to study how Earth is warming.By using lake temperatures as well,scientists can get a better picture of global warming.The scientists say data on lakes give scientists a new way to measure the impact of climate change around the world.That’s going to be useful,since no country is too big or too small to ignore climate change.Scientists aren't the only ones concerned、 Everyone who lives on Earth is going to be affected by the rapid warming ofthe planet.Many world leaders believe we might be able to do something about it,especially by reducing the amount of greenhouse(温室)gases we put into the air.That’s why the United Nations started the F'ramework Convention on Climate Change,or UNFCCC. Every year the convention meets,and representatives from countries around the world gather to talk about climate change and discuss global solutions to the challenges of a warming world.Lakes seem to be warming faster in Asia.A:Right B:WrongC:Not mentioned

共用题干Global Warming1 Smoke is clouding our view of global warming,protecting the planet from perhaps three-quarters of the greenhouse(温室)effect.That might sound like good news, butexperts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.2 This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin, where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPCC).3 IPCC scientists have suspected for a decade that aerosols(浮质)of smoke and other particles from burning rainforest,crop waste and fossil fuels are blocking sunlight andcounteracting the warming effect of carbon dioxide(二氧化物)emissions.Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃.So the 0.6℃of warming over the past century would have been 0.8℃ without aerosols.4 But the Berlin workshop concluded that the real figure is even higher一aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃.If so, the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now.But the bad news is that the climate system is much more sensitive togreenhouse gases than previously guessed.5 As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop.Paragraph 5________A:Atmospheric ScientistsB:The Calculations Made at the Berlin WorkshopC:The Previous Calculations of the Effect of AerosolsD:The Scientists' AgreementE:The Authoritative ConclusionF:Greenhouse Gases

共用题干Global Warming1.Smoke is clouding our view of global warming,protecting the planet from perhaps threequarters of the greenhouse(温室)effect. That might sound like good news,but experts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.2.This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin,where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPCC).3. IPCC scientists have suspected for a decade that aerosols(浮质)of smoke and other partidles from burning rainforest,crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide(二氧化物)emissions. Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃.So the 0.6℃of warming over the past century would have been 0.8℃without aerosols.4.But the Berlin workshop concluded that the real figure is even higher—aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃.If so,the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now. But the bad news is that the climate system is much more sensitive to greenhouse gases than previously guessed.5.As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop.When the cover diminishes in the coming decades,temperature_______.A: will influence future climate changeB:was somewhat surprisingC:will rise rapidlyD:was known to US allE:was much higher than had been expectedF:will drop dramatically

共用题干Global Warming1.Smoke is clouding our view of global warming,protecting the planet from perhaps threequarters of the greenhouse(温室)effect. That might sound like good news,but experts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.2.This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin,where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPCC).3. IPCC scientists have suspected for a decade that aerosols(浮质)of smoke and other partidles from burning rainforest,crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide(二氧化物)emissions. Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃.So the 0.6℃of warming over the past century would have been 0.8℃without aerosols.4.But the Berlin workshop concluded that the real figure is even higher—aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃.If so,the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now. But the bad news is that the climate system is much more sensitive to greenhouse gases than previously guessed.5.As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop.The conclusion reached at the Berlin workshop_______.A: will influence future climate changeB:was somewhat surprisingC:will rise rapidlyD:was known to US allE:was much higher than had been expectedF:will drop dramatically

共用题干Global Warming1 Smoke is clouding our view of global warming,protecting the planet from perhaps three-quarters of the greenhouse(温室)effect.That might sound like good news, butexperts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.2 This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin, where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPCC).3 IPCC scientists have suspected for a decade that aerosols(浮质)of smoke and other particles from burning rainforest,crop waste and fossil fuels are blocking sunlight andcounteracting the warming effect of carbon dioxide(二氧化物)emissions.Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃.So the 0.6℃of warming over the past century would have been 0.8℃ without aerosols.4 But the Berlin workshop concluded that the real figure is even higher一aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃.If so, the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now.But the bad news is that the climate system is much more sensitive togreenhouse gases than previously guessed.5 As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop.The conclusion reached at the Berlin workshop________.A:will influence future climate changeB:was somewhat surprisingC:will rise rapidlyD:was known to us allE:was much higher than had been expectedF:will drop dramatically

共用题干Global Warming1 Smoke is clouding our view of global warming,protecting the planet from perhaps three-quarters of the greenhouse(温室)effect.That might sound like good news, butexperts say that as the cover diminishes in coming decades,we are facing a dramatic increase of warming that could be two or even three times as great as official best guesses.2 This was the dramatic conclusion reached last week at a workshop in Dahlem,Berlin, where top atmospheric scientists got together,including Nobel prize winner Paul Crutzen and Swedish scientist Bert Bolin,former chairman of the UN's Intergovernmental Panel on Climate Change(IPCC).3 IPCC scientists have suspected for a decade that aerosols(浮质)of smoke and other particles from burning rainforest,crop waste and fossil fuels are blocking sunlight andcounteracting the warming effect of carbon dioxide(二氧化物)emissions.Until now,they reckoned that aerosols reduced greenhouse warming by perhaps a quarter,cutting increases by 0.2℃.So the 0.6℃of warming over the past century would have been 0.8℃ without aerosols.4 But the Berlin workshop concluded that the real figure is even higher一aerosols may have reduced global warming by as much as three-quarters,cutting increases by 1.8℃.If so, the good news is that aerosols have prevented the world getting almost two degrees warmer than it is now.But the bad news is that the climate system is much more sensitive togreenhouse gases than previously guessed.5 As those gases are expected to continue accumulating in the atmosphere while aerosols stabilize or fall,that means"dramatic consequences for estimates of future climate change",the scientists agreed in a draft report from the workshop.When the cover diminishes in the coming decades,temperature_________.A:will influence future climate changeB:was somewhat surprisingC:will rise rapidlyD:was known to us allE:was much higher than had been expectedF:will drop dramatically

问答题Not so long ago, people talked about global warming in apocalyptic terms—imagining the Statue of Liberty up to its chin in water or an onslaught of tropical diseases in Oslo. Recently, however, advances in our understanding of climate have moved global warming from a subject for a summer disaster movie to a serious but manageable scientific and policy issue. The greenhouse effect is nothing new; it has been operating ever since the earth formed. Without it, the surface of the globe would be a frigid –20 ℃ (–4 °F), the oceans would have frozen, and no life would have developed.

单选题It can be inferred from the second paragraph that______.Alow-altitude clouds are the main causes of global warming.Bincrease of cloud cover can slow down the climate change.Cglobal warming will increase cloud cover.Dincrease of cloud cover can speed up the global warming.

问答题Even the most uninformed student of climate change could tell you that the solution to global warming is to alleviate global greenhouse gas emissions, and fast. But the problem is that the sheer amount of greenhouse gases we’ve already pumped into the atmosphere has irreversibly bound us to a certain amount of warming over the next several decades. No matter what we do, we’ll have to adapt to it.  (1)_______________. Already precipitation patterns seem to be changing, making some drier areas—like the arid American southwest —even drier, and rainy regions even wetter. As warmer temperatures creep northward, so do insects and other pests that are adapted to the heat. The results can be distressing. The tiny mountain pine beetle, which infests pine trees in the Rocky Mountain region, used to be controlled by freezing winters. But as temperatures have warmed over the past decade, the mountain pine beetle’s territory has spread, destroying millions of acres of Canadian pines.  (2)_______________Generations of American conservationists have fought to preserve wild- life and to keep nature pristine in the face of a growing population and pollution. To a remarkable extent, they’ve succeeded—almost 16% of the entire landmass of the U.S. is protected, and the Endangered Species Acthas helped save countless animals from extinction.  (3)_______________. What good is a wildlife reserve if the protected animals can’t live there, because climate change pushes them out? What difference does it make to defend trees from logging, if global warming will allow a new pest to destroy whole forests?  (4)_______________. Last week the Lincoln Institute of Land Policy brought together conservation leaders from around the U.S. to discuss how to cope with warming, trying to work out a new framework for the biggest challenge facing conservation.  (5)_______________. So too is the scale required to properly adapt to climate change, which will almost certainly continue for decades into the future. “Climate change will affect agriculture, water resources, forestry, transportation, waste management, energy generation, national security, immigration patterns, fisheries, food security, you name it,” said Lara Hansen. “We need to change the way we allocate resources, plan economies and protect livelihoods.”  That means that the way we’ve been carrying out conservation—picking the right land spaces and playing goalie—won’t work anymore, as climate change keeps moving the target. Regardless of what we do, the changes will be coming fast. We need to begin cutting our carbon immediately, but we need to adapt now as well. The world is changing because of us; to save what’s left, we’ll have to change too.  [A] But global warming threatens to change all that, by altering the very foundation on which the conservation movement was built.  [B] Global warming was already having “profound effects” in the American West, and that the future would bring increased drought, heat waves, rainstorms, extinctions and more.  [C] That means climate change isn’t a problem for tomorrow; the effects are happening now.  [D] The conference was fruitful, if a bit depressing. What’s clear is that the sheer speed of the changes already taking place due to warming—like the mountain pine beetle infestation—are catching us off guard.  [E] Conservationists will have to work even harder, trying to minimize non climate-related threats to land and species.  [F] The pine beetle infestation is just one example of global warming’s present danger. It also represents the unique challenges that warming will pose for land conservation managers on the front lines of the battle against it.  [G] The answer is to adapt the way we practice wildlife and land conservation to climate change. There’s a term for this—adaptive management.(此文选自Time2008年刊)