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名词解释题
土壤源温室气体 soil-borne greenhouse gases
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A greenhouse is a building made of glass which is used for keeping plants when the outside temperature is low. In a similar way there are several gases in the atmosphere which trap(捕捉)the heat produced by the sun and prevent it from escaping. These gases are known as"greenhouse gases"，and the way in which they trap heat in the atmosphere is called the "greenhouse effect". This is not simply air pollution. Most of the main greenhouse gases exist naturally in small amounts in our atmosphere, and without them earth would be 30 degrees colder and human life would not exist. In other words, the greenhouse effect is a natural course which is to some degree helpful to us.The problem is that in the last century and a half, we have been putting too many of these gases into the earth's atmosphere by burning large quantities of coal and oil and by cutting down forests. The rapid increase in greenhouse gases is making the world warmer. The world's temperature has already gone up by half a degree this century, and the sea level has risen by 10 centimetres. If the amount of carbon dioxide(二氧化碳)in the atmosphere doubles, there will probably be a rise in the earth's temperature of between 1 and 4 degrees. This may seem a small increase, but it would be enough to cause major changes in geography and agriculture. Large areas of the world would be flooded, and some areas would become dry and unable to produce crops. It is important, too, to consider that there may be a delay of about 30 years in the greenhouse effect. This means that we are probably experiencing only now the effect of the gases put into the atmosphere before the 1960s. Since then, our use of these gases has greatly increased.1. The"greenhouse effect"means _____.A. the way in which gases are used for keeping plants warmB. a natural course which is some degree helpful to usC. the way"greenhouse gases"trap heat on the earthD. the whole course in which greenhouse gases prevent heat2. If there were no greenhouse effect, _____.A. no plants would grow on our planetB. earth would be thirty degrees colderC. man could not live on the earthD. All of the above answers are correct3. Which of the following is NOT true? _____A. Burning too much coal and oil produces lots of greenhouse gases.B. It has become warmer on the earth now than in the past.C. Gases put into the atmosphere now will affect the earth years later.D. The temperature in a greenhouse is as high as that in the atmosphere.4. Suppose the earth's temperature rose by 3 degrees, _____.A. great harm would be done to mankindB. the sea level would go by 10 centimetresC. all the land in the world would be floodedD. crops would be unable to grow on the earth5. This passage mainly deals with _____.A. the concept(概念)and harm of greenhouse effectB. the relation between greenhouse gases and manC. the concept and change of greenhouse effectD. the effect of the rise of the earth's temperature
考题
关于温室气体排放量化﹐不正确的是? ( )A.所有的温室气体排放都必须量化B.温室气体排放的量化必须文件化C.温室气体量化的结果必须具有可再现性D.温室气体的量化方法一经确定就不能改变
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The primary purpose of the concerned group and individuals is to ________the greenhouse gases and pollutants.A.deposit
B.decrease
C.deviation
D.deprival
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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
考题
填空题By increasing the levels of greenhouse gases in the atmosphere, human activities are strengthening Earth’s natural greenhouse effect.____
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单选题Why greenhouse gases are one of the best indicators of ecological overdraft?A
The cost of carbon emission permits is driven down.B
Trade for carbon market failed.C
Greenhouse gases are the most important guideline of ecology.D
The global economy is overwhelmingly fossil-fuel dependent.
考题
填空题El Nino effect may become more frequent and fierce if enough heat could be brought to Pacific waters by the accumulation of greenhouse gases.____
考题
单选题（）通常被认为是温室气体的主要排放源。A
工业B
农业C
城市D
农村
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