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A rat or pigeon might not be the obvious choice to tend to someone who is si
A rat or pigeon might not be the obvious choice to tend to someone who is si
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2024-01-28
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问题
A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some【C1】______ skills that could help the treatment of human diseases.
Pigeons are often seen as dirty birds and an urban【C2】______ , but they are just the latest in a long line of animals that have been found to have abilities to help humans. Despite having a brain no bigger than the【C3】______ of your index finger, pigeons have a very impressive【C4】______ memory. Recently it was shown that they could be trained to be as accurate as humans at detecting breast cancer in images.
Rats are often【C5】______ with spreading disease rather than【C6】______ it, but this long-tailed animal is highly【C7】______ . Inside a rat’s nose are up to 1,000 different types of olfactory receptors (嗅觉感受器), whereas humans only have 100 to 200 types. This gives rats the ability to detect【C8】______ smells. As a result, some rats are being put to work to detect TB (肺结核). When the rats detect the smell, they stop and rub their legs to【C9】______ a sample is infected.
Traditionally, a hundred samples would take lab technicians more than two days to【C10】______ , but for a rat it takes less than 20 minutes. This rat detection method doesn’t rely on specialist equipment. It is also more accurate—the rats are able to find more TB infections and, therefore, save more lives.
A) associated I) slight
B) examine J) specify
C) indicate K) superior
D) nuisance L) suspicious
E) peak M) tip
F) preventing N) treated
G) prohibiting O) visual H) sensitive [br] 【C6】
选项
答案
F
解析
动词辨析题。空格所在句中的rather than起到了连词的作用,故前后的词性是一致的,其前面是动名词结构,故空格处也应该填入动名词,且根据rather than“而不是”可知,空格处的动名词与spreading disease的含义相反,备选项中preventing意为“预防”,既符合词性要求,也符合句意,故F)为答案。备选项中G)prohibiting意思是“禁止”,不能与disease搭配,故排除。
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