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A recent experiment held in Japan shows ...

A recent experiment held in Japan shows that it is almost impossible for people to walk exactly straight for 60 metres. Tokyo University of Agriculture and Technology found 20 healthy men and asked them to walk as straight as possible to a target 60 metres away at normal speed. Each man had to walk on white paper fixed flat to the floor wearing wet colored socks. The footprints revealed(展现) that all walked in a winding rather than a straight line. Researchers found that people readjust(调整) the direction of walking every few seconds. The amount of the winding differed from subject to subject. This suggests that none of us can walk in a strictly straight line. We walk in a winding way mainly because of a slight structural or functional imbalance of our limbs (四肢). Although we may start walking in a straight line, several steps afterwards we have changed direction.

Eyesight helps us to correct the direction of walking and leads us to the target. Your ears also help you walk. After turning around a lot with your eyes closed, you can hardly stand still, let alone walk straight.

It’s all because your ears help you balance. Inside your inner ear there is a structure which contains liquids. On the sides of the organ are many tiny hair-like structures that move around as the liquid flows. When you spin (旋转) the liquid inside also spins. The difference is that when you stop, the liquid continues to spin for a while. Dizziness is the result of these nerves in your ear. When you open your eyes, although your eyesight tells you to walk in a straight line, your brain will trust your ears more, thus you walk in a curved line.

1.The experiment held in Japan proved that _______.

A. none of the participants finished the 60 metres

B. all the participants had a good sense of direction

C. the experiment was done in different ways

D. the participants kept readjusting(调整) their direction of walking

2.The underlined word “subject” in Para. 1 refers to ________.

A. a person with a functional imbalance

B. the subject one studies at school

C. a person chosen to be studied in an experiment

D. the direction of walking

3.The purpose of writing the article is to ________.

A. prove that ears and eyes help us to walk straight

B. point out the importance of noticing everyday science

C. explain why we can hardly walk in a strictly straight line

D. give background information about a latest study

 

1.D 2.C 3.C 【解析】 试题分析:文章介绍人们几乎不可能一直走直线,并解释了为什么我们不能走直线,不管你是否相信,我们行走时,依靠的是眼睛和耳朵的帮助! 1.D事实细节题。从第一段的句子:Researchers found that people readjust the direction of walking every few seconds. 可知参与者一直在调整行走的方向,故选D。 2.C词义猜测题。从第一段的句子:Tokyo University of Agriculture and Technology found 20 healthy men and asked them to walk as straight as possible to a target 60 metres away at normal speed.可知东京大学找了20个健康的人,让他们以正常的速度尽可能的走60米直线,下文说The amount of the winding differed from subject to subject.弯曲的数量是人和人是不一样的,所以subject是参加实验的人,故选C。 3. 考点:考查科教类短文阅读
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