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2013年大学英语四级考试阅读理解练习20篇(13)

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  Flying over a desert area in an airplane, two scientists looked down with trained eyes at trees and bushes. After an hour's 11 one of the scientists wrote in his book, "Look here for 12 metal. " Scientists in another airplane, flying over a mountain region, sent a 13 to other scientists on the ground, "Gold possible. " Walking across hilly ground, four scientists reported, "This ground should be searched for metals. " From an airplane over a hilly wasteland a scientist sent back by radio one word, "Uranium. "
  None of the scientists had X-ray eyes: they had no 14 powers for looking down below the earth's surface. They were 15 putting to use one of the newest methods of 16 minerals in the ground—using trees and plants as 17 that certain minerals may lie beneath the ground on which the trees and plants are growing.
  This newest method of searching for minerals is 18 on the fact that minerals deep in the earth may 19 the kind of bushes and trees that grow on the surface.
  At Watson Bar Creek, a brook six thousand feet high in the mountains of British Columbia, Canada, a mineral search group gathered bags of tree seeds. Boxes were filled with small branches from the trees. Roots were dug and put into boxes. Each bag and box was 20 marked. In a scientific laboratory the parts of the forest trees were burned to ashes and tested. Each small part was examined to learn whether there were minerals in it.

  A. signs B. sufficiently C. locating D. affect
  E. merely F. magic G. hints H. carefully
  I. finding J. message K. flight L. probable
  M. revealing N. based O. information

重点单词   查看全部解释    
mineral ['minərəl]

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adj. 矿物的
n. 矿物,矿石

联想记忆
wasteland ['weistlænd]

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n. 荒地,未开垦地

 
brook [bruk]

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n. 小河,溪
vt. (常用于否定句或疑问句

联想记忆
revealing [ri'vi:liŋ]

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adj. 有启迪作用的,透露内情的,袒露身体的 动词re

 
certain ['sə:tn]

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adj. 确定的,必然的,特定的
pron.

 
affect [ə'fekt]

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vt. 影响,作用,感动

联想记忆
flight [flait]

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n. 飞行,航班
n. 奇思妙想,一段楼

 
creek [kri:k]

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n. 小湾,小溪 Creek n. 克里克族,克里克人,

联想记忆
merely ['miəli]

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adv. 仅仅,只不过

 


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