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  3. The human brain contains 10 thousand million cells and each of these may have a thousand connec- tions. Such enormous numbers us

The human brain contains 10 thousand million cells and each of these may have a thousand connec- tions. Such enormous numbers us

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问题      The human brain contains 10 thousand million
cells and each of these may have a thousand connec-
tions. Such enormous numbers used to encourage us                  【S1】_____
and cause us to dismiss the possibility of making a ma-
chine with human-like ability, but now that we have
grown used to moving forward with such a pace we can               【S2】______
be less sure. Quite soon, in only 10 or 20 years perhaps,
we would be able to assemble a machine as complex                  【S3】______
as the human brain, and if we can we will. It may then
take us a long time to render it intelligently by loading          【S4】______
in the right software or by altering the architecture and          【S5】______
that too will happen.
     I think it certain that in decades, not centuries,
machines of silicon(硅) will rise first to rival and then          【S6】______
exceed their human ancestors. Once they exceed us they
will be incapable of their own design. In a real sense             【S7】______
they will be able to reproduce themselves. Silicon will
have ended carbon’s long control. And we will no
longer be able to claim ourselves to be the finest intelli-
gence in the known universe.
     For the intelligence of robots increases to match             【S8】______
that of humans and as their cost declines through econo-
mies of scale we may use them to contract our frontiers,           【S9】______
first on earth through their ability to withstand environ-
ments, beneficial to ourselves.                                    【S10】______
【S6】
选项
答案rise→arise
解析 易混词误用。根据上下文的意思，几十年后machines of silicon的出现将超越人类祖先，rise意思是“上升”，arise“出现”，因此应用arise。
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