今天给大家带来的雅思阅读真题解析是来自剑桥雅思11阅读test3 passage3 Reducing the Effects of Climate Change，减少天气变化带来的影响。接下来请看雅思内容：雅思剑11test3阅读解析附真题原文
剑桥雅思11阅读test3 passage3
Reducing the Effects of Climate Change
Question 27-29
阅读解析：27.根据关键词和对原文的理解，可找到定位段D段第三句，原文be modeled on可对应题干中的be based on，原文中historic对应earlier, vocanic explosions对应natural phenomenon。故答案为D。
28.根据句意和关键词，可定位到原文B段段首，原文中has been shown to work与题干中的successful对应。故答案为B。
29.关键词之一geo-engineering为原词重现，原文中破折号和term可对应definition。故答案为A。
Question 30-36
正确答案：30. sunshade31. iron32. algae33. clouds34. cables35. snow36. rivers阅读解析：30.根据题干可预测出，该题应填单数名词。可首选用spacecraft和 Earth定位，B段倒数第二句中原词重现，原文中minute对应tiny, reduce the amount of light为原词重现。故答案为sunshade。
31.根据题干可预测出，该题应填一名词。这道题题干短，只能利用in the sea对应到原文C段的in the ocean，定位句确定后，在该句找到题干中place|的同义替换词deposit，答案就是iron。
32.根据题干可预测出，该题应填一名词。图表填空题为顺序题，接31题的原文往下看，原文中的stimulate对应题干中的encourage，the growth of对应form，可确定答案为algae。
33.根据题干可预测出，该题应填一名词。利用题干关键词定位，不难发现aerosol spray原词重现于D段第一句，原文中global dimming可对应reduce the amount of light，form对应create，再结合句意，可知clouds即为答案。
34.根据题干可预测出，该题应填一名词。根据题干关键词定位到D段第四句，原文中的ice sheets of Greenland对应题干中的Greenland ice sheets，high-tension对应strong，所以答案为cables。
35.根据题干可预测出，该题应填一名词。可用Russian Arctic和 radiation定位，在D段有原词重现，第六句句尾reflect和radiation原词重现，原文中的enable对应题干中的allow，再结合句意，可确定答案为snow。
36.根据题干可预测出，该题应填一名词。原文句首re-routing可对应题干中的change the direction，cold water为原词重现，故可确定答案为rivers。以上为雅思内容：名师点题雅思真题7阅读Test3Passage3原文+答案+解析。通过名师点评，我们可以学到该类阅读题型的解题方法和思路，同时建议大家把真题中的生词和重点词汇标记出来，以便复习和记忆。
Question 37-40
正确答案：37. B38. D39. C40. A阅读解析：37.人名观点配对题解题时，可以根据选项中的人名回原文定位。在E段发现B选项中的人名，然后顺藤摸瓜发现他的观点 “I think …twenty years.”原文中rapidly和within ten to twenty years对应题干中的not long-lasting。故答案为B。
38.本题也是先找人名，在H段找到D项中的人名和引号内他的观点，原文中think thoroughly对应题干中的worth exploring。故答案为D。
39.先找到人名，然后仔细读该人名附近的原文，在这些原文中寻找题干关键词的原词或同义词，G段最后一句中的avoid the need for对应题干中的limit the effectiveness。故答案为C。
40.先找到人名，在根据题干关键词寻找对应的原文，原文中renewable energy对应non-fossil-based fuels，no substitute对应cannot be replaced。故答案为A。
原文阅读：
Mark Rowe Reports on the Increasingly Ambitious Geo-Engineering Projects Being Explored By Scientists
A Such is our dependence on fossil fuels, and such is the volume of carbon dioxidealready released into the atmosphere, that many experts agree that significant global warming is now inevitable. They believe that the best we can do is keep it at a reasonable level, and at present the only serious option for doing this is cutting back on our carbonemissions. But while a few countries are making major strides in this regard, the majority are having great difficulty even stemming the rate of increase, let alone reversing it.Consequently, an increasing number of scientists are beginning to explore the alternative of geo-engineering - a term which generally refers to the intentional large-scale manipulationof the environment. According to its proponents, geo-engineering is the equivalent of a backup generator: if Plan A - reducing our dependency on fossil fuels - fails, we require a Plan B, employing grand schemes to slow down or reverse the process of global warming.
B Geo-engineering has been shown to work, at least on a small localised scale. For decades, May Day parades in Moscow have taken place under clear blue skies, aircraft having deposited dry ice, silver iodide and cement powder to disperse clouds. Many of the schemes now suggested look to do the opposite, and reduce the amount of sunlight reaching the planet. The most eye-catching idea of all is suggested by Professor Roger Angel of the University of Arizona. His scheme would employ up to 16 trillion minute spacecraft, each weighing about one gram, to form a transparent, sunlight-refracting sunshade in an orbit 1.5 million km above the Earth. This could, argues Angel, reduce the amount of light reaching the Earth by two per cent.
C The majority of geo-engineering projects so far carried out - which include planting forests in deserts and depositing iron in the ocean to stimulate the growth of algae - have focused on achieving a general cooling of the Earth. But some look specifically at reversing the melting at the poles, particularly the Arctic. The reasoning is that if you replenish the ice sheets and frozen waters of the high latitudes, more light will be reflected back into space, so reducing the warming of the oceans and atmosphere.
D The concept of releasing aerosol sprays into the stratosphere above the Arctic has been proposed by several scientists. This would involve using sulphur or hydrogensulphide aerosols so that sulphur dioxide would form clouds, which would, in turn, lead to a global dimming. The idea is modelled on historic volcanic explosions, such as that of MountPinatubo in the Philippines in 1991, which led to a short-term cooling of global temperatures by 0.5℃.Scientists have also scrutinised whether it's possible to preserve the ice sheets of Greenland with reinforced high-tension cables, preventing icebergs from moving into the sea. Meanwhile in the Russian Arctic, geo-engineering plans include the planting of millions of birch trees. Whereas the region's native evergreen pines shade the snow and absorbradiation, birches would shed their leaves in winter, thus enabling radiation to be reflected by the snow. Re-routing Russian rivers to increase cold water flow to ice-forming areas could also be used to slow down warming, say some climate scientists.
E But will such schemes ever be implemented? Generally speaking, those who are mostcautious about geo-engineering are the scientists involved in the research. Angel says that his plan is 'no substitute for developing renewable energy: the only permanent solution'.And Dr Phil Rasch of the US-based Pacific Northwest National Laboratory is equally guarded about the role of geo- engineering: 'I think all of us agree that if we were to end geo-engineering on a given day, then the planet would return to its pre-engineered condition very rapidly, and probably within ten to twenty years. That's certainly something to worry about.'
F The US National Center for Atmospheric Research has already suggested that the proposal to inject sulphur into the atmosphere might affect rainfall patterns across the tropics and the Southern Ocean. 'Geo-engineering plans to inject stratospheric aerosols or to seed clouds would act to cool the planet, and act to increase the extent of sea ice,' says Rasch. 'But all the models suggest some impact on the distribution of precipitation.'
G 'A further risk with geo-engineering projects is that you can "overshoot",' says Dr Dan Lunt, from the University of Bristol's School of Geophysical Sciences, who has studied the likely impacts of the sunshade and aerosol schemes on the climate. 'You may bring global temperatures back to pre-industrial levels, but the risk is that the poles will still be warmer than they should be and the tropics will be cooler than before industrialisation.' To avoid such a scenario, Lunt says Angel's project would have to operate at half strength; all of which reinforces his view that the best option is to avoid the need for geo-engineering altogether.
H The main reason why geo-engineering is supported by many in the scientific community is that most researchers have little faith in the ability of politicians to agree - and then bring in - the necessary carbon cuts. Even leading conservation organisations see the value of investigating the potential of geo-engineering. According to Dr Martin Sommerkorn, climate change advisor for the World Wildlife Fund's International Arctic Programme, 'Human-induced climate change has brought humanity to a position where we shouldn't excludethinking thoroughly about this topic and its possibilities.'
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