请教OG-32，OG-48

DebeersHk

定一下，那位再帮忙解释一下48阿

yoyobaobao

谢各位百忙中无人回帖，我终于看懂了，再次谢谢大家！

neverblue203

我的理解:

原因(前提)(条件)

大批电视卫星发射和运作失败-à保险费用增加à卫星电视成本增加-à当前运作卫星成效更多.(ETS的出题点)

结论:

卫星成本将继续增加.(up,动态趋势)

(结论指:什么导致成本有增加的趋势.---如:保险费用有增加趋势,卫星电视成本也有增加趋势,)(动态趋势)

(结论不是指:成本高低的问题:如:保险费用高,卫星电视成本高,)(静态状态)

Which of the following, if true, taken together with the information above, best supports the conclusion that the cost of television satellites will continue to increase?

A. Since the risk to insurers of satellites is spread over relatively few units, insurance premiums are necessarily very high.(因为卫星保险公司风险被分散到相对少的unit,所以保险费用必定非常高的.)(只是说明费用高,导致成本高,却没有说明费用高将导致成本有增加趋势.)(某点去说明趋势)

A describes factors relevant to costs, but there is no reason to think that the situation described in the passage will cause the costs resulting from these factors to increase.

B. When satellites reach orbit and then fail, the causes of failure are generally impossible to pinpoint with confidence.(当卫星到了轨道,接着失败;失败的原因通常由于保密性很难查明)

(1,说明卫星成本还在那里,)(2,成本仍然是平稳的.)(没有说明成本有增加趋势.)

Similarly, the impossibility of pinpointing the cause of failure, mentioned inB, is consistent with the cost of satellites remaining stable.

C. The greater the performance demands placed on satellites, the more frequently those satellites break down.(强加在卫星上成效要求越高,卫星break down也越频繁)(说明保险费用将越高,成本有增加趋势)(趋势证明趋势)

According to the passage, satellite mishaps caused a surge in insurance claims, which, in turn, caused increased insurance premiums.Higher premiums made the satellites more costly, resulting in increased performance demands, if C is true, the greater demands on performance will lead to further increases in costs by increasing the number of mishaps, and thus pushing insurance premiums still higher. Thus, C is the best answer.

D. Most satellites are produced in such small numbers that no economies of scale can be realized.(大部分卫星都是小数量生产,不存在规模经济)(说明成本高,没有说明成本增加趋势) (某点去说明趋势)

D describes factors relevant to costs, but there is no reason to think that the situation described in the passage will cause the costs resulting from these factors to increase.

E. Since many satellites are built by unwieldy international consortia, inefficiencies are inevitable(因为许多卫星是由笨拙的interational consortia构建,它的无效性不可避免的.)(说明有成本,而且高,没有说明成本有增加趋势) (某点去说明趋势)

E describes factors relevant to costs, but there is no reason to think that the situation described in the passage will cause the costs resulting from these factors to increase.

rainshade

楼上总结的很好，此题已经解释的非常清楚了。

helenzane

以下是引用ring_cheng在2005-6-21 21:04:00的发言：

to beautyup:

我感觉好像A/D/E都只能说明现在的成本高，并不能回答“公司的压榨行为”是否会导致“成本是否继续上升”

here is my two cents:

A. Since the risk to insurers of satellites is spread over relatively few units, insurance premiums are necessarily very high. —>只说明现在的事故造成的成本高，没说公司的措施会不会使以后的成本更高

B. When satellites reach orbit and then fail, the causes of failure are generally impossible to pinpoint with confidence. —>找不到卫星掉下来的原因，所以没有针对性的解决方法，因此卫星成本也不会改变（依然会很高）

C. The greater the performance demands placed on satellites, the more frequently those satellites break down. —>找出原文的循环：压榨越大，掉下来的可能性越大（接着原文的论述：越坏掉，成本越高）

D. Most satellites are produced in such small numbers that no economies of scale can be realized. —>因为生产规模小所以贵，跟压榨后更贵无关

E. Since many satellites are built by unwieldy（笨拙的，不实用的） international consortia（银行团）, inefficiencies are inevitable. —>银行低效，势必造成现在的成本高，但跟公司的压榨措施会不会造成以后的成本上升无关

欢迎讨论！

好解释好解释！