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2005年考研英语真题及答案

发布时间：2023-01-19 13:01:20 来源：文档文库

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2005年全国硕士研究生入学统一考试英语试题
Section I: Use of English Directions:
Read the following text. Choose the best word(s for each numbered blank and mark [A], [B], [C] or [D] on ANSWER SHEET 1 (10 points
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, __1__ this is largely because, __2__ animals, we stand upright. This means that our noses are __3__ to perceiving those smells which float through the air, __4__ the majority of smells which stick to surfaces. In fact, __5__, we are extremely sensitive to smells, __6__ we do not generally realize it. Our noses are capable of __7__ human smells even when these are __8__ to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, __9__ others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate __10__ smell receptors in the nose. These receptors are the cells which sense smells and send __11__ to the brain. However, it has been found that even people insensitive to a certain smell __12__ can suddenly become sensitive to it when __13__ to it often enough.
The explanation for insensitivity to smell seems to be that brain finds it __14__ to keep all smell receptors working all the time but can __15__ new receptors if necessary. This may __16__ explain why we are not usually sensitive to our own smells we simply do not need to be. We are not __17__ of the usual smell of our own house but we __18__ new smells when we visit someone else’s. The brain finds it best to keep smell receptors __19__ for unfamiliar and emergency signals __20__ the smell of smoke, which might indicate the danger of fire. 1. [A] although [B] as [C] but [D] while
2. [A] above [B] unlike [C] excluding [D] besides 3. [A] limited [B] committed [C] dedicated [D] confined 4. [A] catching [B] ignoring [C] missing [D] tracking 5. [A] anyway [B] though [C] instead [D] therefore 6. [A] even if

[B] if only [C] only if [D] as if
7. [A] distinguishing [B] discovering [C] determining [D] detecting 8. [A] diluted [B] dissolved [C] determining [D] diffused 9. [A] when [B] since [C] for
[D] whereas 10. [A] unusual [B] particular [C] unique [D] typical 11. [A] signs [B] stimuli [C] messages [D] impulses 12. [A] at first [B] at all [C] at large [D] at times
13. [A] subjected [B] left [C] drawn [D] exposed
14. [A] ineffective [B] incompetent [C] inefficient [D] insufficient 15. [A] introduce [B] summon [C] trigger [D] create 16. [A] still [B] also
[C] otherwise [D] nevertheless 17. [A] sure

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