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1、Chapter 4 The world of numbers一翻译下列短语1古代 _ 2. 许多不同的方法 _3数字体系 _ 4. 由组成 _5计算器_ 6. 计算 _7一瞬间_ 8. 能够 _9一生_ 10. 人脑 _二完成下列句子1印度人首先发明并发展了1-9数字体系。后来他们又发明了零这个数字。The Indians first _ and developed the 1 _ 9 system of numbers. Then they invented the z_.2（零的发现）使得写大的数字和计算变得更容易。It made _ easier _ big numbers and to
2、 _.3现代的计算器可以计算加、减、乘、除，还可以算百分比和平方根。The modern _ can add, _ , _and _. It can also _ percentages and _.4. 电脑可以在一瞬间进行计算，而你有可能一辈子都算不出来。A computer can do a _ in a _ , but you might not be _ to do in your _ lifetime.5一些人把人脑叫做活电脑。人脑比电脑更强大吗？Some people _ the brain a _ computer. Is a human brain more _ _ a co
3、mputer？三短文填词Shakuntala Devi is from India. She has an a_ (1) brain and can calculate like l_ (2). In America, Shakuntala and a very powerful computer were given a problem to s_ (3). Shakuntalas brain t_ (4) 50 seconds to find the answer. The computer took a m_(5). However, before the computer could begin c_ (6), someone had to s_(7) many hours programming it with i_(8) . No one had to p_ (9) Shakuntala. Is your brain powerful e_(10) to be against the computer?专心 爱心 用心
