剑桥雅思11test1passage3阅读答案及解析

剑桥雅思11test1passage3阅读答案及解析

第27题选：D

对应原文：D段：The idea is modelled on historic volcanic explosions

答案解析：这道题因为没有明显的定位词，因此难度较大。我们只能从列举各种地球工程的B段，C段和D段中寻找。发现historic可以和题干中的earlier对应，而volcanic explosions也是一种自然现象，由此确定答案为D。

第28题选：B

对应原文：B段：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.

答案解析：B段开头提到地球工程在本地范围已经被证明有效，随后利用莫斯科五一游行的例子进一步说明。即地球工程的成功应用，由此确定答案为B。

第29题选：A

对应原文：A段：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 manipulation of the environment.

答案解析：A段中提到了地球工程的定义。该词汇通常用来指国际性的，对环境的大范围操控。即地球工程的定义，由此确定答案。

第30题选：sunshade

对应原文：B段：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.

答案解析：根据spacecraft定位到B段的这一句，原文中的form与题干上的create同义替换，排除掉其他修饰词之后，确定答案为sunshade。

第31题选：iron

对应原文：C段：depositing iron in the ocean to stimulate the growth of algae

答案解析：虽然这道题没有什么提示词，但根据30题和33题的位置，我们可以将注意力集中在C段上。depositing与place同义替换，再加上这一段中只有这一句提到往海洋里放什么东西，由此确定答案为iron。

第32题选：algae

对应原文：同上

答案解析：encourgae与stimulate同义替换，虽然我们可能不认识algae是什么意思，但通过修饰关系，仍然可以确定它是答案。

第33题选：clouds

对应原文：D段：The concept of releasing aerosol sprays…so that sulphur dioxide would form clouds,which would,in turn,lead to a global dimming.

答案解析：根据aerosol sprays定位到D段，form与create同义替换，由此锁定答案为clouds。

第34题选：cables

对应原文：D段：it’s possible to preserve the ice sheets of Greenland with reinforced high-tension cables,preventing icebergs from moving into the sea.

答案解析：根据Greenland定位到D段的这一句话，strong与reinforced同义替换，由此确定答案为cables.

第35题选：snow

对应原文：D段：Whereas the region’s native evergreen pines shade the snow and absorb radiation,birches would shed their leaves in winter,thus enabling radiation to be reflected by the snow.

答案解析：根据Russian Arctic和leaves定位到这句话。题干中问的是什么反射辐射，由此锁定snow。

第36题选：rivers

对应原文：D段：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.

答案解析：根据后一单元格的ice-forming定位到这句话，change the direction与re-routing同义替换，由此确定答案为rivers.

第37题选：B

对应原文：E段：Dr Phil Rasch…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.

答案解析：Phil Rasch认为，如果我们在某一天停止地球工程，那么地球很快就会回到工程实施之前的状态。题干中的not be long-lasting与rapidly同义替换，由此确定答案为B。

第38题选：D

对应原文：H段：According to Dr Martin Sommerkorn…we shouldn’t exclude thinking thoroughly about this topic and its possibilities

答案解析：Martin Sommerkorn的观点是，我们不应该排除对这一方案及其可能性的彻底思考。即承认地球工程虽然存在一些缺点，但仍然是值得探索的。由此确定答案。

第39题选：C

对应原文：G段：Lunt says Angel’s project would have to operate at half strength

答案解析：Lunt认为Angel的项目必须以一半的强度运营。即必须限制某些地球工程的功效。由此确定答案为C。

第40题选：A

对应原文：E段：Angel says that his plan is‘no substitute for developing renewable energy

答案解析：Angel说，他的计划并不是开发开再生能源的替代品。其中substitute与replace同义替换，renewable energy与non-fossil-based fuels对应，由此确定答案为A。