单选题
Everyone talks about the "five" senses of man. And it's true that we get our information about the outside world from our sense of sight, hearing, smell, touch and taste. Researchers tell us that the sense of sight--our visual--gives us up to 80% of what we know about the world outside our bodies while the other senses, the auditory (hearing), the olfactory (smell), the tactile (touch), and the gustatory(taste) bring into our brains information about the other twenty percent of what is happening. But there are two other senses that we cannot get along without, though they are very seldom given any credit for helping us to survive in this difficult world. These are the sense of balance, and the kinesthetic sense. The sense of balance, without which we would act like a drunk after a heavy bout with the bottle, is located in the inner ear. The inner ear contains three curved tubes (the semi-circular canals) tilted with liquids. The shifting of these liquids activates nerve endings in the linings of the canals and nerve impulses from these nerve endings help oar brains to keep us upright. The kinesthetic sense is actually made up of nerve impulses that arise from nerves planted in close contact with our muscles. These nerve messages are constantly telling us what position our limbs, trunk and head are in. They serve as a continuous "feed-back" system to help us know how to move our various parts, and when to held them still. Otherwise, we would lack the coordination to run, jump, dance the twist, or even sit still. Incidentally, the word "kinesthetic" comes from two Greek words meaning "motion" end "feeling." The kinesthetic sense gives us our ideas about our own motion.
单选题
The best title for this passage is ______.
【正确答案】
B
【答案解析】主旨大意题。本文首先讲到了人的五种感觉以及这些感觉会给人带来多大的帮助。然后，作者笔锋一转，点明了文章的主题。这个主题是：另外还有两种感觉我们几乎没有注意到，这就是the sense of balance(平衡感)和kinesthetic sense(动觉感)。在第二、三段中，作者分别对这两种感觉进行了专门描述。据此，选项B正确。其他三项偏离了主题。