In a flash, a computer do a calculation that you could not do in your whole lifetime. A. can B. must C. need D. should 题目和参考答案——青夏教育精英家教网—

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In a flash, a computer ______ do a calculation that you could not do in your whole lifetime.
A. can B. must C. need D. should

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　　Ancient numbers

　　In ancient 　　1　　, people wrote numbers in many different 　　2　　, 　　3　　 these pictures of the number 6 show．　　4　　, they nearly all counted in the same way－in 　　5　　．

　　Zero

　　The system of numbers that nearly everyone uses today 　　6　　 of the numbers from 1 to 9 and 0 　　7　　 these ten numbers, we can write any number from the biggest to the smallest．The Indians 　　8　　 invented and developed the 1 to 9 system of numbers．They then invented the zero．This was a very important 　　9　　 because it made it easier to write big numbers and to 　　10　　．

　　Calculating machines

　　One of the first calculating machines was an 　　11　　．Abacuses are so fast and accurate that people still use them today．On the abacus in the picture, the beads on the wires 　　12　　 ones, tens, hundreds and thousands, starting from the 　　13　　 wire．

　　The picture on the right shows a modern electronic calculator．It can add, subtract, multiply and divide．It can also calculate percentages and 　　14　　 roots．

　　This picture shows a computer．Computers are very 　　15　　 calculating machines．In a flash, a computer can do a calculation that you could not do in your whole lifetime．

　　Brain against computer

　　Some people call the brain a 　　16　　 computer．Is a human brain a more powerful 　　17　　 than a computer? The following story may give you an answer．

　　Shakuntala Devi is a lady from India with an 　　18　　 brain．She can calculate like lightning．In America, Shakuntala and a very powerful computer were given this problem to solve．

　　Shakuntala's brain took fifty seconds to find the answer．The computer took a minute．However, before the computer could begin 　　19　　, someone had to program it with instructions, and that took many hours．No one had to 　　20　　 Shakuntala!

1．________　2．________　3．________　4．________　5．________

6．________　7．________　8．________　9．________　10．________

11．________　12．________　13．________　14．________　15．________

16．________　17．________　18．________　19．________　20．________

This kind of phenomenon (现象) is called “flash mob (快闪族)”. “Flash mob” is a group of people who meet in a public place to perform an activity for a short time. Sometimes all these people are friends, but usually they are strangers (陌生人) and they find each other (彼此) on the Internet.

“Flash mob” is very surprised and strange. One of the popular “flash mob” activities was in Manhattan, New York City: Three hundred people met in a store and each of them told the shop assistant that they would buy the same size sports shoes, and the shop assistant didn’t know what to do.

1.What did a lot of fans do at People’s Square in Shanghai?

___________________________________________________________________________.

2.What is “flash mob”?

___________________________________________________________________________.

3.Are people of “flash mob” usually strangers?

___________________________________________________________________________.

4.Where do people find each other in a short time?

___________________________________________________________________________.

5.What does the writer think of “flash mob”?

___________________________________________________________________________.

What happened to that brilliant idea that you once had? Did you ignore (忽略) it because you thought that it was just a little thought? Have you ever considered what that little thought would have become if you had acted on your instincts (本能) or if you had paid more attention to it?

Imagine a scene, where you are sitting at home watching television or reading a book, suddenly a light bulb is turned on in the dark tunnel of your mind as a thought or an idea crosses your mind. The thought catches your attention but seems so meaningless and you want to give it up, but wait a minute! That thought could be the potential (潜在的) beginning of the success you have wanted so much. As the thought crosses your mind, your senses become alert and you suddenly see a possibility, a realization, a solution, a conclusion, or find the answer to a problem whose solution has long escaped from you.

It is almost as if a great being has spoken the perfect solution quietly into your ear or awakened your senses to a reality by this means bringing light to your life. It is like finding the last piece of jigsaw puzzle. This becomes an AHA moment and everything freezes around you as you excitedly try to grasp the practicality of that little but powerful thought.

Your self-confidence and interest increase as you become aware of the great possibilities that can arise if that little thought is acted upon. This becomes the moment to build upon that thought and to write down any ideas that are streaming from that little thought for later review. Seemingly meaningless little thoughts or ideas when acted upon have a potential to burst into great projects. Many successful projects have been born from the little positive thoughts that were carefully nurtured (培育) and recognized as tickets to great things.

You may have heard people say many times that it just came to me in a flash moment, a small idea or seemingly meaningless thought may cross your mind about something you have been planning to complete. Don’t waste an opportunity to act on a potentially brilliant idea. You don't have to wait for a major peer (同伴) for a major idea, a master strategy or agreement in order for you to act on that little thought. That little thought or idea is the beginning of great things if you decide to follow it.

57. In paragraph 3, “an AHA moment” refers to the moment that _____________.

A. you suddenly understand and find something

B. you get the agreement from your peers

C. a thought or an idea crosses your mind

D. a light bulb is turned on in the dark

58. What is the best title for the passage?

A. Can You Catch Your Chances?

B. Are You Ignoring that Little Thought?

C. Little Thoughts in Your Leisure Time

D. How to Make Use of the Little Thought

59. What does the writer want to tell us?

A. Little thoughts help increase the interest for your job.

B. Think over the little thoughts for the later great invention.

C. Many successful projects have been born from your dreams.

D. Act on the little thoughts because they might lead to great things.

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