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第一篇

Is Global Warming Good for Farming?

You might think a little global warming is good for farming. Longer,warmer growing seasons
and 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 enhanced
B:be certainly reduced
C:still remain stable
D:be hard to predict

参考答案

参考解析
解析:本题是细节考查题。题干是:在全球变暖的影响下,美国粮食产量会如何?选D的依据是第一段最后一句:" But global warming's effects on a幼culture would actually be quite complicated一and mostly not for the better.”但是,全球变暖对农业的影响实际上是相当复杂的―并且大多数的影响都不会促进农业生产。选项D是说在全球变暖的影响下,美国粮食产量会很难预测,与原文意思一致。
本题是细节考查题。题干是:第三段最后一行的“hardier crops”指的是何种作物?选B的依据是第三段最后一句:" 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.”由于吃农作物的昆虫会改变其迁徒模式以适应变暖的气候,农民将不得不使用更多的杀虫剂或种植抗虫害能力更强的农作物。选项B的意思是对虫子有抵抗力的作物,与原文意思相符。
本题是细节考查题。题干是:美国东西两岸过度使用化石燃料的结果是什么?选A的依据是第四段最后一句:" Too few cold days breaks the plants' flowering schedule which in turn affects pollination(授粉)and hurts yield.”寒冷的日子太少会打乱这些作物的开花周期,进而影响作物的授粉和产量。选项A的意思由于冬季寒冷时间的缩短,作物的产量降低了,与原文意思相符。
本题是细节考查题。题干是:根据《瓦克斯曼?马基法案》,农业产业怎样?选B的依据是第五段的第二句:" In response to a护cultural demands , the Waxman-Markey bill frees the a护cultural industry from CO2 emission limits and gives up control over what activities guarantee carbon offset credit to the A幼cultural Department.”在应对农业需求方面,《瓦克斯曼·马基法案》使农业不受二氧化碳减排计划的约束,并且将如何才能保证有效的碳补偿的控制权交给了农业部。选项D的意思是根据《瓦克斯曼·马基法案》,农业产业可以产出多少二氧化碳量就排放多少,与原文相符。
本题是细节考查题。题干是:作者最有可能认同的有关农业产业的说法是哪个?选D的依据是最后一段最后一句:" 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.”但我们能确定地说的是,与大多数大型产业一样,农业也是化石燃料密集型产业―灌溉水泵、拖拉机等农业设备往往会排放出大量的二氧化碳。选项D的意思是农业产业消耗很多化石燃料,与原文相符。后一句的wouldn't be surprise…均表明,与20世纪70年代的情况不同,现在实行4天工作制的可能性非常大。选项C的意思是4天工作制很有可能普及,与原文相符。
更多 “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” 相关考题
考题 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."hardier crops"(Last line,Para. 3)are most probably crops that_______.A:need less water in summerB:are more resistant to bugsC:are strong enough to stand even big stormsD:keep growing regardless of global warming

考题 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.11._________A: off B: away C: up D: over

考题 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

考题 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.The author is most likely to agree that the farming industry_______.A:consumes more CO2 than it emitsB:emits more CO2 than it consumesC:produces many fossil fuelsD:consumes many fossil fuels

考题 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.What is the result of"the nation's fossil-fuel addiction"on both coasts?A:Plants yield decreases due to shortened winter chill.B:Plants yield without dormancy and flowering.C:Crops require longer winter chill than before.D:The yields are no longer influenced by the climate.

考题 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.According to the Waxman一Markey bill,the farming industry_______.A:should increase its consumption of CO2B:should control its CO2 emission within limitsC:is moving towards a CO2 -free industryD:is allowed to emit as much CO2 as it produces

考题 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

考题 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

考题 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.