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There are two opposing theories about mountain formation and climate over the pa
There are two opposing theories about mountain formation and climate over the pa
游客
2024-01-10
21
管理
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 result of (ii)________mountains and climate. For example, mountain glaciers tend 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A. superseded D. disparity between G. unpredictable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,I
解析
空格(i):
- 方程等号:句号,同义重复。
- 强词和对应:第一句话提到了关于山的形成和气候的两种观点。第二句话和第一句话之间用句号连接,语义顺承,接着说这两种观点中的第一种,即广布的山川使地球温度降低,widespread mountain building同义改写第一句中的the surge of mountain building,cooled the earth同义改写第一句中的空格(i)the global cooling。纵观选项,supersed取代,halt阻碍,cause引起,只有C选项符合语义。
空格(iii):
- 方程等号:冒号,同义重复。
- 强词和对应:根据正向的方程等号冒号可知,空格(iii)的语义与冒号之后的部分属于同义重复。冒号之后的部分说:(这些冰川)一旦形成,它们就会增加表面的反射,从而降低温度,让更多的冰得以形成。纵观选项,unpredictable不可预测的,static静止的,self-perpetuating自我永存的,只有I选项最恰当地概括了冒号后面部分的意思,故选I。
空格(ii):
- 方程等号:for example例如,同义重复。
- 强词和对应:第二句说冰川降低地球温度是源于山脉和气候之间的空格(ii),for example之后用一个具体例子来说明第二句话的内容,故空格(ii)填入选项后要能够和for example之后的部分形成同义重复。for example之后的部分说的是“冰川越多,温度越低;而温度越低,冰川就会越多”,这是冰川和温度的一种双向因果关系。选项中,disparity between…和…之间的差距,feedback between…和…之间的交互反馈,complexity of…的复杂性。只有E选项比较好地体现了冰川和温度之间的这种双向因果关系,故选E。
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