历年考研英语完形填空真题及答案：2005年
历年考研英语完形填空题真题及答案(2000-2014)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. although as but while
2. above unlike excluding besides
3. limited committed dedicated confined
4. catching ignoring missing tracking
5. anyway though instead therefore
6. even if if only only if as if
7. distinguishingdiscovering determiningdetecting
8. diluted dissolved determiningdiffused
9. when since for whereas
10. unusual particular unique typical
11. signs stimuli messages impulses
12. at first at all at large at times
13. subjected left drawn exposed
14. ineffective incompetent inefficientinsufficient
15. introduce summon trigger create
16. still also otherwise nevertheless
17. sure sick aware tired
18. tolerate repel neglect notice
19. availabe reliableidentifiablesuitable
20. similar tosuch as along with aside from
答案：Section I: Use of English (10 points)
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.
11. 12. 13. 14. 15.
16. 17. 18. 19. 20.
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