OG-186

zmy19880908

我觉得这道题用词用得那叫一个精辟：
186.
Offshore oil-drilling operations entail an unavoidable（表明通过什么方法都不能避免）risk of an oil spill, but importing oil on
tankers presently（表明通过某某方法在未来是可以避免的，正如A）entails an even greater such risk per barrel of oil. Therefore, if we are to
reduce the risk of an oil spill without curtailing our use of oil, we must invest more in offshore
operations and import less oil on tankers.
Which of the following, if true, most seriously weakens the argument above?
(A) Tankers can easily be redesigned so that their use entails less risk of an oil spill.
(B) Oil spills caused by tankers have generally been more serious than those caused by
offshore operations.
(C) The impact of offshore operations on the environment can be controlled by careful
management.
(D) Offshore operations usually damage the ocean floor, but tankers rarely cause such
damage.
(E) Importing oil on tankers is currently less expensive than drilling for it offshore.

-- by 会员 zxkingsey (2010/3/7 23:07:48)

分析的好细致啊！！

iamjasmineshi

(A) Tankers can easily be redesigned so that their use entails less risk of an oil spill.文中提出了两个危险：钻油井和用油罐车进口油。argument相应提出两个做法：希望更多投资operation、减少用油罐车来进口油，以此减少风险而不缩减用量。这个选项weaken之处在于weaken了做法：重新设计油罐车，而且这样风险更少。
(B) Oil spills caused by tankers have generally been more serious than those caused by offshore operations.repeat原文。
(C) The impact of offshore operations on the environment can be controlled by careful management.与环境无关。
(D) Offshore operations usually damage the ocean floor, but tankers rarely cause such damage.无关。注意文中说的是oil spill的风险，这个选项说的是damage ocean floor，说的不是一个事情。
(E) Importing oil on tankers is currently less expensive than drilling for it offshore.无关。

shjtSAIF

zxkingsey 发表于 2010-3-7 10:07
我觉得这道题用词用得那叫一个精辟：186.Offshore oil-drilling operations entail an unavoidable（表明通 ...

看一下！