考研英语二(完形填空)模拟试卷108
完型填空
When Neil Armstrong and Buzz Aldrin returned from the moon, their cargo included nearly fifty pounds of rock and soil, which were packed in an aluminum box with seals designed to maintain the lunar surface\’s low-pressure environment. But back at Johnson Space Center, in Houston, scientists discovered that the seals had been【C1】______—by moon dust.
Lunar dust is fine, like a powder,【C2】______it cuts like glass. It\’s formed when shooting stars【C3】______on the moon\’s surface, heating its rocks and dirt and reducing them to fine particles. Since there\’s no wind or water to smooth【C4】______edges, the tiny grains are sharp and uneven, and【C5】______nearly everything.
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1.【C1】(A)
A. destroyed
B. stained
C. changed
D. consolidated
解析:上句提到从月球上带回来的石块和泥土是放置在一个特制密封的铝盒里,能保持类似月球表面的低压环境(low-pressure environment)。从本句的But推断,这个密封装置可能出现了问题,下段提到月尘非常锋利(it cuts like glass)。因此A项destroyed“被破坏”符合语义逻辑,表明盒子被月尘破坏。
2.【C2】(C)
A. because
B. and
C. but
D. so
解析:前半句提到月尘像粉末一样精细,后半句说它像玻璃一样锋利。两者之间形成强烈的反差。C项but表转折,符合语义逻辑。
3.【C3】(B)
A. hang .
B. crash
C. land
D. move
解析:本句说明月尘是如何形成的。从后面的伴随状语heating its rocks and dirt…to fine particles(将石块和尘土加热并粉碎成颗粒)推断,流星对月球表面造成了极大冲击,导致这样的后果。B项crash意为“撞击”,符合语义逻辑。
4.【C4】(C)
A. soft
B. hard
C. rough
D. flat
解析:本句提到这些微小的颗粒既锋利又不平(sharp and uneven),说明它们的边缘(edges)是不光滑的。C项rough有“粗糙”之意,语义符合。
5.【C5】(D)
A. search for
B. put out
C. turn down
D. cling to
解析:下一段提到月尘损坏了太空衣(damaged space suits),并且提到月尘还附着在宇航员的身上被带回了太空船(Dust followed the astronauts back into their ships),这说明月尘无处不在,具有很强的粘着力。D项cling to“附着”符合语义逻辑。
6.【C6】(A)
A. nature
B. speed
C. degree
D. direction
解析:下句提到月尘损坏(damaged)了太空衣和登月靴,可以推断它具有破坏性。A项nature意为“性质”,与intruding搭配表示月尘有“侵蚀、破坏的性质”。
7.【C7】(B)
A. intelligence
B. health
C. fund
D. future
解析:空格处的名词短语与前面的a more challenging engineering design issue并列,表明的都是月尘可能造成的影响。该段后半部分谈到了月尘对宇航员装备的影响,最后也谈到了宇航员吸入月尘后可能对肺带来影响。前者对应design issue,后者谈论health issue。因此选B项。
8.【C8】(C)
A. moment
B. situation
C. course
D. program
解析:Over有“在……期间”之意,其宾语应能表示一段时间。C项course表示“过程,进程”,代入后表示在六次阿波罗航行任务中。
9.【C9】(D)
A. installed
B. lost
C. found
D. maintained
解析:前文提到月尘锋利如玻璃,破坏太空衣、月球靴等,说明它的破坏力很强,那些装有石头的盒子(rock box)也应遭到了破坏。句中主语not one rock box本身已含有否定,因此空格处所填单词应具有肯定意义。D项maintained“保持”符合。
10.【C10】(C)
A. even
B. fast
C. difficult
D. comfortable
解析:本句提到月尘闻起来像火药(it smelled like gun powder),火药的味道一般是很浓并让人呼吸不畅。C项difficult“困难的”,代入后指呼吸困难。
11.【C11】(A)
A. coats
B. affects
C. protects
D. crusts
解析:本句的结构是not only...but,表示递进关系
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