Section A
Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter . Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.
A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some 26 skills that could help the treatment of human diseases.
Pigeons are often seen as dirty birds and an urban 27 , 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 28 of your index finger, pigeons have a very impressive 29 memory. Recently it was shown that they could be as accurate as humans at detecting breast cancer in images.
Rats are often 30 with spreading disease rather than 31 it, but this long-tailed animal is highly 32 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 33 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 34 a sample is infected.
Traditionally, a hundred samples would take lab technicians more than two days to 35 , 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
F) preventing
K) superior
B) examine
G) prohibiting
L) suspicious
C) indicate
H) sensitive
M) tip
D) nuisance
I) slight
N) treated
E) peak
J) specify
O) visual
A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some 26K superior skills that could help the treatment of human diseases.
Pigeons are often seen as dirty birds and an urban 27D nuisance , 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 28Dtip of your index finger, pigeons have a very impressive 29Ovisual memory. Recently it was shown that they could be as accurate as humans at detecting breast cancer in images.
Rats are often 30Aassociated with spreading disease rather than 31Fpreventing it, but this long-tailed animal is highly 32Hsensitive 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 33Islight 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 34Cindicate a sample is infected.
Traditionally, a hundred samples would take lab technicians more than two days to 35Bexamine, 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 rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some superior skills that could help the treatment of human diseases.
老鼠或鸽子可能不是照顾病人的明显选择，但这些动物拥有一些可以帮助治疗人类疾病的高级技能。
Pigeons are often seen as dirty birds and an urban nuisance , but they are just the latest in a long line of animals that have been found to have abilities to help humans.
鸽子经常被认为是肮脏的鸟类和城市的累赘，但它们只是被发现有能力帮助人类的一长串动物中最新的一种。
Despite having a brain no bigger than the tip of your index finger, pigeons have a very impressive visual memory.
尽管鸽子的大脑并不比你的食指尖大，但它们却有着令人印象深刻的视觉记忆。
Recently it was shown that they could be as accurate as humans at detecting breast cancer in images.
最近的研究表明，他们可以像人类一样准确地在图像中检测乳腺癌。
Rats are often associated with spreading disease rather than preventing it, but this long-tailed animal is highly sensitive 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.
老鼠常常与传播疾病,而不是阻止它,但这只长在老鼠的动物是高度敏感的鼻子多达1000种不同类型的嗅觉受体(嗅觉感受器),而人类只有100到200种。
This gives rats the ability to detect slight smells.
这使老鼠能够察觉轻微的气味。
As a result, some rats are being put to work to detect TB（肺结核）.
因此,一些老鼠正在工作检测结核(肺结核)。
When the rats detect the smell, they stop and rub their legs to indicate a sample is infected.
当老鼠嗅到这种气味时，它们会停下来揉搓自己的腿，表示样本已经感染。
Traditionally, a hundred samples would take lab technicians more than two days to examine, but for a rat it takes less than 20 minutes.
传统上，100个样本需要实验室技术人员两天以上的时间来检测，但对一只老鼠来说，检测时间不到20分钟。
This rat detection method doesn't rely on specialist equipment.
这种老鼠检测方法不需要专门的设备。
It is also more accurate—the rats are able to find more TB infections and, therefore, save more lives.
它也更准确——老鼠能够发现更多的结核病感染，因此，挽救更多的生命。
