二、 The Amazon rainforest is so important that frequently regarded as the “lungs of the planet”. Scientists have found a small number of tree species that are doing the heaviest 1 as they help to 2 global warming.
Their discovery that 182 species 3 half the rainforest wood-bound carbon suggests that the future of the world’s climate, and the lines of its coastal areas are 4 with the fate of this small part of about 16,000 Amazonian tree species.
Despite ongoing logging (伐木工作)and recent drought, the Amazon is 5 to perhaps a sixth of the carbon stored in living plants the world over, helping to keep 6 of climate-changing carbon dioxide 7 in the atmosphere.
“The Amazon is a particularly important carbon stock, and it’s currently 8 a carbon sink,” Sophie Fauset said. ” What we’re trying to do is increase our understanding of 9 this carbon is going and which trees are storing it.”
“There are a few species that seem to grow 10 and those are the huge ones you’d want to emphasize in the 11 of the forest,” said professor John Battles.
“If you were managing to protect these forests, you would leave these trees.”
One of the most carbon-hungry types of trees 12 in the study was the Brazil nut tree,which grows 13 that can easily go beyond a height of 100 feet. 14 total growth and productivity they ranked fourth overall, and they were found to 15 1.3 percent of the forest’s carbon.
“Given the huge biological diversity of tropical forests, 16 cycling would be more equally distributed among plant species,” Rosie Fisher said. “This 17 overturns (推翻)the originally imagined pattern.”
Fisher said she would be “ 18 to suggest the most obvious idea that we could store lots of carbon by planting these very large species”. Because so little is
known about how 19 they are to the types of droughts and fires that are 20 to become more common in the future, nor whether they would thrive (茁壮成长)in managed forests.
1.A.sweating B.sleepingC.breathing D.swallowing2.A.slow B.expandC.worsen D.strengthen3.A.consume B.storeC.waste D.produce4.A.filled B.suppliedC.presented D.connected5.A.home B.centerC.habitat D.heart6.A.stages B.pointsC.quantities D.levels7.A.away B.downC.off D.out8.A. getting into B. referring toC.resulting in D.acting as9.A.where B.howC.when D.why10.A.fast B.steadyC.big D.deep11.A.measurement B.protectionC.beauty D.function12.A.preserved B.plantedC.created D.identified13.A.trunks B.rootsC.branches D.leaves14.A.In terms of B.In spite ofC.In need of D.In view of15.A.remove B.squeezeC.contain D.change16.A.air B.carbonC.vapor D.temperature17.A.diversity B.climateC.species D.discovery18.A.eager B.contentC.hesitant D.brave19.A.obvious B.beneficialC.suitable D.sensitive20.A.supposed B.opposedC.limited D.intended
二、答案：CABDA DBDAC BDAAC BDCDA
解析：1.C【解题思路】根据h文中的"lungs of the planet"可知，这里应选breathing 。2.A【解题思路】结合常识并根据语境可知，这些品种的树呼吸着更多的气体，因此使得全球变暖变得缓慢。3.B 【解题思路】从下文中的"a sixth of the carbon stored in living plants the world over"可知，空处所在句指这些树储存着森林里—半的二氧化碳的含量。4.D 【解题思路】根据空前的"the future of the world’s climate，and the lines of its coastal areas"和后面的 “with the fate of this small part of about 16,000 Amazonian tree species”可知，这些树的品种，与世界的未来气候和海洋的海岸线都有着密切的关系。5.A【解题思路】结合空后的"to perhaps a sixth of the carbon stored in living plants the world over"可知，亚马逊雨林储存的二氧化碳的量占全球活着的植物储存的二氧化碳的六分之一。be home to..."为……的所在地"。6. D【解题思路】根据空后的"climate-changing carbon dioxide 7 in the atmosphere"可知，这些树木使改变着气候的二氧化破的含量保持在低水平。level"数量，程度，浓度"。7.B【解题思路】参见上题解析。keep sth. down"使……保持在低水平，抑制某事物的增长"。8. D【解题思路】结合空前的"The Amazon is a particularly important carbon stock"可知，亚马逊雨林充当着（acting as) 一个二氧化碳的沉积池。9. A【解题思路】根据语境可知，科学家们正在努力了解这些二氧化碳去了哪儿。10. C【解题思路】结合空后的"the huge ones"可知，有些树木长得高大。11.B 【解题思路】根据空后的"If you were managing to protect these forests"可知，这里指的是保护森林。12.D【解题思路】结合第一段中的 “Scientists have found a small number of tree species"和空后的"in the study"可知，这里指研究中那些经过辨别的树种。13. A 【解题思路】根据空后的"that can easily go beyond a height of 100 feet"可知，这里指的是树干可以轻松地氏到超过l00英尺的高度。14. A【解题思路】这里是说就总的产撤来说，这种树排第四。In terms of..."就……来说，关于……"，符合语境。15.C【解题思路】结合空后的"1.3 percent of the forest’s carbon"以及上文内容可知，这些品种的树包含森林中1.3%的二氧化碳。16. B【解题思路】文章主要描述了二氧化碳的问题，因此这里指二氧化碳在各种植物之间循环。17. D【解题思路】根据第二段中的 “Their discovery that 182 species 3 half the rainforest wood-bound carbon ”可知，这里指这个 发现（discovery)推翻了原来想象的模式。18.C【解题思路】根据下文中的 “Because so little is known about how 19 they are to the types of droughts and fires... in managed forests”可知，由于很少知道这种树对干旱或者火灾的敏感性，所以Fisher对是否建议多种这些高大的树犹豫不定。 hesitant “犹豫不决的”。19. D 【解题思路】结合空后的"they are to the types of droughts and fires”可知，Fisher对这种树木对干旱和火灾的敏感性了解得还不是很多c be sensitive to"对...敏感”。20.A【解题思路】 结合空后的 “to become more common in the future”可知，预计将来这种干旱和火灾会变得更常见。
Their discovery that 182 species 3 half the rainforest wood-bound carbon suggests that the future of the world’s climate, and the lines of its coastal areas are 4 with the fate of this small part of about 16,000 Amazonian tree species.
Despite ongoing logging (伐木工作)and recent drought, the Amazon is 5 to perhaps a sixth of the carbon stored in living plants the world over, helping to keep 6 of climate-changing carbon dioxide 7 in the atmosphere.
“The Amazon is a particularly important carbon stock, and it’s currently 8 a carbon sink,” Sophie Fauset said. ” What we’re trying to do is increase our understanding of 9 this carbon is going and which trees are storing it.”
“There are a few species that seem to grow 10 and those are the huge ones you’d want to emphasize in the 11 of the forest,” said professor John Battles.
“If you were managing to protect these forests, you would leave these trees.”
One of the most carbon-hungry types of trees 12 in the study was the Brazil nut tree,which grows 13 that can easily go beyond a height of 100 feet. 14 total growth and productivity they ranked fourth overall, and they were found to 15 1.3 percent of the forest’s carbon.
“Given the huge biological diversity of tropical forests, 16 cycling would be more equally distributed among plant species,” Rosie Fisher said. “This 17 overturns (推翻)the originally imagined pattern.”
Fisher said she would be “ 18 to suggest the most obvious idea that we could store lots of carbon by planting these very large species”. Because so little is
known about how 19 they are to the types of droughts and fires that are 20 to become more common in the future, nor whether they would thrive (茁壮成长)in managed forests.
1.A.sweating B.sleepingC.breathing D.swallowing2.A.slow B.expandC.worsen D.strengthen3.A.consume B.storeC.waste D.produce4.A.filled B.suppliedC.presented D.connected5.A.home B.centerC.habitat D.heart6.A.stages B.pointsC.quantities D.levels7.A.away B.downC.off D.out8.A. getting into B. referring toC.resulting in D.acting as9.A.where B.howC.when D.why10.A.fast B.steadyC.big D.deep11.A.measurement B.protectionC.beauty D.function12.A.preserved B.plantedC.created D.identified13.A.trunks B.rootsC.branches D.leaves14.A.In terms of B.In spite ofC.In need of D.In view of15.A.remove B.squeezeC.contain D.change16.A.air B.carbonC.vapor D.temperature17.A.diversity B.climateC.species D.discovery18.A.eager B.contentC.hesitant D.brave19.A.obvious B.beneficialC.suitable D.sensitive20.A.supposed B.opposedC.limited D.intended
二、答案：CABDA DBDAC BDAAC BDCDA
解析：1.C【解题思路】根据h文中的"lungs of the planet"可知，这里应选breathing 。2.A【解题思路】结合常识并根据语境可知，这些品种的树呼吸着更多的气体，因此使得全球变暖变得缓慢。3.B 【解题思路】从下文中的"a sixth of the carbon stored in living plants the world over"可知，空处所在句指这些树储存着森林里—半的二氧化碳的含量。4.D 【解题思路】根据空前的"the future of the world’s climate，and the lines of its coastal areas"和后面的 “with the fate of this small part of about 16,000 Amazonian tree species”可知，这些树的品种，与世界的未来气候和海洋的海岸线都有着密切的关系。5.A【解题思路】结合空后的"to perhaps a sixth of the carbon stored in living plants the world over"可知，亚马逊雨林储存的二氧化碳的量占全球活着的植物储存的二氧化碳的六分之一。be home to..."为……的所在地"。6. D【解题思路】根据空后的"climate-changing carbon dioxide 7 in the atmosphere"可知，这些树木使改变着气候的二氧化破的含量保持在低水平。level"数量，程度，浓度"。7.B【解题思路】参见上题解析。keep sth. down"使……保持在低水平，抑制某事物的增长"。8. D【解题思路】结合空前的"The Amazon is a particularly important carbon stock"可知，亚马逊雨林充当着（acting as) 一个二氧化碳的沉积池。9. A【解题思路】根据语境可知，科学家们正在努力了解这些二氧化碳去了哪儿。10. C【解题思路】结合空后的"the huge ones"可知，有些树木长得高大。11.B 【解题思路】根据空后的"If you were managing to protect these forests"可知，这里指的是保护森林。12.D【解题思路】结合第一段中的 “Scientists have found a small number of tree species"和空后的"in the study"可知，这里指研究中那些经过辨别的树种。13. A 【解题思路】根据空后的"that can easily go beyond a height of 100 feet"可知，这里指的是树干可以轻松地氏到超过l00英尺的高度。14. A【解题思路】这里是说就总的产撤来说，这种树排第四。In terms of..."就……来说，关于……"，符合语境。15.C【解题思路】结合空后的"1.3 percent of the forest’s carbon"以及上文内容可知，这些品种的树包含森林中1.3%的二氧化碳。16. B【解题思路】文章主要描述了二氧化碳的问题，因此这里指二氧化碳在各种植物之间循环。17. D【解题思路】根据第二段中的 “Their discovery that 182 species 3 half the rainforest wood-bound carbon ”可知，这里指这个 发现（discovery)推翻了原来想象的模式。18.C【解题思路】根据下文中的 “Because so little is known about how 19 they are to the types of droughts and fires... in managed forests”可知，由于很少知道这种树对干旱或者火灾的敏感性，所以Fisher对是否建议多种这些高大的树犹豫不定。 hesitant “犹豫不决的”。19. D 【解题思路】结合空后的"they are to the types of droughts and fires”可知，Fisher对这种树木对干旱和火灾的敏感性了解得还不是很多c be sensitive to"对...敏感”。20.A【解题思路】 结合空后的 “to become more common in the future”可知，预计将来这种干旱和火灾会变得更常见。
