While walking in the People’s Park, to his joy, my father one of his fellow soldiers who he hadn’t seen for nearly 50 years. A. came into B. knocked on C. ran into D. touched in 题目和参考答案——青夏教育精英家教网—

题目内容

While walking in the People’s Park, to his joy, my father_______ one of his fellow soldiers who he hadn’t seen for nearly 50 years.

A. came into 　　 B. knocked on　　 C. ran into 　　　　　　 D. touched in

答案：C
提示：

run into 遇到，碰到。

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Can you walk in a straight line? The question is much more difficult to answer than you think. Believe it or not, your eyes and ears help you to walk!

A recent experiment held in Japan shows that it is almost impossible for people to walk exactly straight for 60 meters.

　　The Tokyo University of Agriculture and Technology asked 20 healthy men to walk as straight as possible for 60 meters at normal speed.

Each man had to wear socks soaked with red ink and walk on white paper fixed flat to the floor. The footprints showed that all walked in a winding rather than a straight line.

Researchers found that people readjust their direction of walking regularly. The amount of meandering（曲折前行） differed from subject to subject.

This suggests that none of us can walk in a strictly straight line. Rather, we meander, mainly due to a slight structural or functional imbalance of our legs. So steps by the left and right legs of a person are different.

As a result, 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 or walk straight. It's all because your ears are still spinning and can't help you keep your balance. Inside your inner ear is a structure containing liquids. Inside your ears are many minute hair-like structures that move around as the liquid flows.

When you spin the liquid inside also spins. The difference is that when you stop, the liquid continues to spin for a while. Dizziness（眩晕） is the result.

　　For the moment, although your eyesight tells you to walk in a straight line your brain listens to your spinning ears, thus you don't walk in a straight line!

1．When you walk for 60 meters, you .

A．can walk straight without effort

B．meander at first, and in while walk in a straight line

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C．Because of a slight structural or functional imbalance of our legs.

D．Because our eyesight and ears aren’t always in harmony with each other.

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A．Your are always meandering most time, but you can arrive where you want to go.

B．After you turn around a lot with your eyes closed, you almost can’t keep balance.

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D．You start walking in a straight line, several steps afterwards you’ll change direction.

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