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n. 合作社
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Passage Three
Questions 31 to 35 are based on the following passages.
The world is known to us through many senses, not just hearing, smell, vision, and at close range, touch and taste.
Our skins let us know whether the air is moist or dry, whether surfaces are wet without being sticky or slippery. From the uniformity of slight pressure, we can be aware how deeply a finger is thrust into water at body temperature, even if the finger is enclosed in a rubber glove that keeps the skin completely dry. Many other animals, with highly sensitive skins, appear to be able to learn still more about their environment. Often they do so without employing any of the five senses.
By observing the capabilities of other members of the animal kingdom, we come to realise that a human being has far more possibilities than are utilised. We neglect ever so many of our senses in concentrating on the five major ones. At the same time, a comparison between animals and man draws attention to the limitations of each sense. The part of the spectrum (光谱) seen by colour-conscious man as red is non-existent for honey-bees. But a bee can see far more in flowers than we, because the ultra-violet (紫外线) to which our eyes are blind is a stimulating (刺激的) part of the insect’s spectrum, and, for honey-bees at least, constitutes a separate colour.
31. From the passage, we realise that ________.
A) man possesses as many senses as animals
B) man possesses a few more senses than animals
C) man possesses far more senses than the five major ones
D) man has fully utilised his senses（A）
32. Which of the following is TRUE?
A) The honey-bee is blind to red.
B) Man is more colour-conscious than the honey-bee.
C) The honey-bee can see far more colours than man.
D) Man is sensitive to the ultra-violet.（B）
33. We can realise how deeply a finger is put into water at body temperature ________.
A) from the sense of direct touch
B) through skin contact
C) from the even distribution of pressure
D) through the difference in temperature（D）
34. The phrase “sensitive skins” (Para. 2 Line 6) most probably means ________.
A) skins that are sticky or slippery
B) skins that are delicate
C) skins that are completely dry
D) skins that are quick to feel and respond（A）
35. What is the main idea of the passage?
A) All senses have their limitations.
B) Man has not fully utilized all his senses.
C) Insects are more sensitive to colours than man.
D) Man is not as good as animals in learning about the environment.（C）
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