The human brain contains 10 thousand million cells (细胞)and each of these may have a thousand connections. Such great numbers used to discourage us and cause us to stop thinking about the possibility of making a machine with humanlike ability,but now that we have grown used to moving forward at such a speed we can be less sure. Quite soon,in only 10 or 20 years,perhaps,we will be able to build a machine as complex(复杂) as the human brain,and if we can we will. It may then take us a long time to make it as intelligent as the human brain by properly programming it.
I think it is certain that in decades,not centuries,machines of silicon (硅) will arise to compete with their human ancestors. In a real sense they will be able to reproduce themselves. Silicon will have ended carbon's long control. And we will no longer be able to consider ourselves to be the finest intelligence in the world.
As the intelligence of robots increases and their cost goes down,we may achieve a lot with their help,first on the earth through their ability to complete any kind of work in harmful environments. In the end deserts(沙漠) may turn into gardens. Further ahead,by a combination of;the great wealth this new age will bring and the techpology it will provide,the creation of a huge, man-made world in space,home to thousands or millions of people,will be within our power.
33. In the author 's opinion,the human brain
A. is complex and intelligent
B. is too complex to be reproduced
C. may change a lot in 10 or 20 years
D. will soon be replaced by machines
34. The underlined word “carbon” in Paragraph 2 stands for.
A. human beings
B. an old machine
C. an ocean animal
D. intelligent robots
35. In the last paragraph,the author mainly.
A. talks about the intelligence of robots
B. explains how to create a world in space
C. describes what our future life might be
D. shows his worry about the environment
33. A.举节理解题。由第一段中的as complex as the human brain 和 as intelligent as the human brain 可知,作
者认为人类的大脑十分复杂而且非 常聪明,故选A项。
34. A.细节理解题。由该段中的 machines of silicon will arise to compete with their human ancestors 可知,carbon在此是指代人类(碳基生命是以碳元素为有机物质基础的生物,地球上己知的生物,包括人类在内,大多数都是碳基生命) ,故选A项。
35. C.段落大意题。作者在本段中主要就人类未来的生活进行了简单地描绘,故选C项。
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[分析]
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