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标题: 没人问过 Prep 2-64 [打印本页]

作者: Again 时间: 2008-4-2 17:29
标题: 没人问过 Prep 2-64
64. (27882-!-item-!-188;#058&003676)
The majority of scientists believe that to reduce and stabilize atmospheric
concentrations of carbon dioxide, emissions must be cut at the source by fossil fuels
that are burned more efficiently and, in some cases, by alternatives such as hydrogen
fuel cells that can replace fossil fuels altogether.
(A) fossil fuels that are burned more efficiently and, in some cases, by alternatives
such as hydrogen fuel cells that can replace fossil fuels altogether
(B) fossil fuels that are burned more efficiently and, in some cases, those that are
replaced altogether with alternatives such as hydrogen fuel cells
(C) burning fossil fuels more efficiently and, in some cases, by replacing fossil fuels
altogether with alternatives such as hydrogen fuel cells
(D) more efficiency in the burning of fossil fuels and, in some cases, by alternatives
such as hydrogen fuel cells that can replace fossil fuels altogether
(E) the more efficient burning of fossil fuels and, in some cases, by fossil fuels that are
replaced altogether with alternatives such as hydrogen fuel cells

答案是C。但我的问题是主语是emission,而用by burning and by replacing, 此时的burning和replacing没有逻辑主语的问题吗?

[此贴子已经被作者于2008-4-2 17:41:38编辑过]

作者: Again 时间: 2008-4-2 23:08
请指教。
我想是否是因为最外面的主句的主语是 the majority of scientists的原因?

作者: fighteding 时间: 2008-11-8 05:53

同问，prep 2-60

Pioneered by scientists at Los Alamos National Laboratory, BEAM robots are not programmed to walk; instead they use brainlike circuits called neural networks to learn to walk through trial and error.
(B) BEAM robots learn to walk through trial and error by using brainlike circuits called neural networks instead of by programming them

这里的by doing就产生歧义了。

作者: fighteding 时间: 2008-11-8 05:56

最主要的区别就是这道题是被动，emissions be cut

而60题是主动，beam learn to walk by using instead of by programming

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