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There are two opposing theories about mountain formation and climate over the past 40 million years: either the surge of mountai
There are two opposing theories about mountain formation and climate over the past 40 million years: either the surge of mountai
admin
2022-10-11
54
问题
There are two opposing theories about mountain formation and climate over the past 40 million years: either the surge of mountain building (i)________the global cooling, or vice versa. The first of these two theories asserts that widespread mountain building cooled the earth as a result of the (ii)________mountains and climate. For example, mountain glaciers tent to be (iii)________: once established, they increase the reflectivity of the surface, thus lowering temperatures and allowing more ice to form.
Blank (i) Blank (ii) Blank (iii)
A. superseded D. disparity between G. unpredictable
B. halted E. feedback between H. static
C. caused F. complexity of I. self-perpetuating
选项
答案
C,E
解析
先看空格(iii),逻辑连接标志是冒号,表示前后同义重复。前面说冰川山脉tent to be________。后面说一旦冰川形成,会增加表面反射率,因此降低温度从而导致更多冰川形成。这明显是个自我完善、自我生长的过程。I项self-perpetuating(自我持续)符合句意。再看空格(ii)逻辑连接词是for example,表示前后同义重复。前面说第一种理论认为广泛的造山运动使地球变冷。是两者________的结果,后面提到冰川的自我持续。因此空格(ii)表示冰川与气候的内在联系,根据后文知道它们是相互联系的。E项feedback(反馈作用)符合句意。最后看空格(i),冰山的激增________全球变冷,抑或反之。根据后文可知空格处要表达冰山对全球变冷的促进作用,C项caused(导致)最符合。
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本试题收录于:
GRE VERBAL题库GRE分类
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GRE VERBAL
GRE
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