题目列表(包括答案和解析)
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
C.can’t walk exactly straight at any time
D.can almost not cover the distance in a straight line
2.Why most time can we only wind our way?
A.Because our eyes direct us to.
B.Because our ears direct us to.
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.
3.According to the research, we can be led to the target mainly due to .
A.our eyesight B.our brain C.our inner ear D.our sense of direction
4.Which of the following can prove that your ears help you walk according to the passage?
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.
C.When you walk to a target, you readjust your direction of walking regularly.
D.You start walking in a straight line, several steps afterwards you’ll change direction.
Gadgets (小装置) can be wildly expensive and quickly out-of-date, but Steven Poole is still the
first to buy them. Technological innovations (创新) are often quite stupid. The idea that you might
want to walk down the street holding a mobile phone in front of your face, just to experience the
wonders of video calling, is clearly ridiculous. Luckily for the tech companies, however, there are
some people who jump at the chance to buy into new gadgets before they are fully ready and cheap
enough for the mass-market. They are called early adopters, and their fate is a terrible one. I should
know, since I am one myself.
Early adopters have a Mecca: it’s Tokyo’s Akihabara district, also known as “Electric City”.
There, in 1999, I bought a digital camera, a gizmo that few people in Britain had heard of. Over the
next few years I watched in great sadness as digital cameras became more popular, cheaper and more
powerful, until better models could be had for a quarter of the price I had paid. Did I feel stupid? What
I actually did was this: I splashed out more money last year for a new one, one that let me feel pleasantly
ahead of the curve once again. But I know that cannot last, and I’ll probably have to buy another in a
few years.
Thus early adopters are betting on other people eventually feeling the same desires. And it’s worse
if that future never arrives. Early adopters of the Betamax home-video format in the 1970s could only
look on in sadness when their investment was nullified(使无效)by the success of VHS. All sorts of
apparently splendid inventions, such as videogame consoles like the Atari Jaguar have been abandoned
to the dustbin of history right after a few early adopters bought in. Those who invested thousands in a
Segway motorized scooter on the wave of ridiculous advertising campaigns that accompanied its launch
a couple of years ago can join the club.
You might think we should just stop being so silly, save our money, and wait to see what really
catches on. But the logic of the industry is such that, if everyone did that, no innovation would become
popular. Imagine the third person to buy an ordinary telephone soon after Alexander Graham Bell had
invented it. Who was he going to call? Maybe he simply bought two phones, one for a special friend.
But still, the usefulness and eventual popularity of the device wasn’t clear at the time. Nobody dreamed
of the possibility of being able to speak to any one of millions of people. And yet if he, and the hundreds
and thousands of early adopters after him, had not bought into the idea, the vast communication networks
that we all take for granted today would never have been built.
The same goes, indeed, for all new technologies. Those guys holding bricks to their ears that we
laughed at in the 1980s made the current mobile phone possible. People who bought DVD players
when they still cost a fortune, instead of today’s cheap one at the local supermarket, made sure that
the new format succeeded. Early adopters’ desire for desires supported the future financially. And
what did they get for their pains? They got a hole in their bank accounts and inferior, unperfected
technology. But still, they got it first. And today they are still at work, buying overpriced digital radios,
DVD recorders and LCD televisions, and even 3G phones, so that you will be eventually be able to
buy better and less expensive ones.
So next time you see a gadget-festooned geek (满身新潮玩意的土包子) and feel tempted to
sneer (讥笑), think for a minute. Without early adopters, there would be no cheap mobile phones or
DVD players; there would be no telephone or television either. We are the tragic, unsung foot soldiers
of the technology revolution. We’re the desire-addicted pioneers, pure in heart, dreaming of a better
future. We make expensive mistakes so you don’t have to. Really, we are heroes.
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