2006年8月队请进！欢迎大家来讨论

adameye

以下是引用顾风在2006-6-27 9:49:00的发言：

结论带条件的：

比如　某药对某类人群有效果，某个措施能解决交通堵塞等。。

可否举个 “排除充分条件出现，必要条件不出现的情况。或充分条件一定能推出必要条件，或排除充分条件推不出必要条件的可能 ”的例子？

adameye

OG10第32道题，这里   added to the pressure to squeeze more performance out of currently operating satellites和 increased performance demands是怎样的一种关系啊？如何理解？

A recent spate of launching and operating mishaps with television satellites led to a corresponding surge in claims against companies underwriting satellite insurance. As a result, insurance premiums shot up, making satellites more expensive to launch and operate. This, in turn, has added to the pressure to squeeze more performance out of currently operating satellites.

 

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.

B. When satellites reach orbit and then fail, the causes of failure are generally impossible to pinpoint with confidence.

C. The greater the performance demands placed on satellites, the more frequently those satellites break down.

D. Most satellites are produced in such small numbers that no economies of scale can be realized.

E. Since many satellites are built by unwieldy international consortia, inefficiencies are inevitable.

题目：

 

32.

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.

 

A, D and E all describe 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. Similarly, the impossibility of pinpointing the cause of failure, mentioned in B, is consistent with the cost of satellites remaining stable.

顾风

以下是引用adameye在2006-6-27 10:42:00的发言：

OG10第32道题，这里   added to the pressure to squeeze more performance out of currently operating satellites和 increased performance demands是怎样的一种关系啊？如何理解？

A recent spate of launching and operating mishaps with television satellites led to a corresponding surge in claims against companies underwriting satellite insurance. As a result, insurance premiums shot up, making satellites more expensive to launch and operate. This, in turn, has added to the pressure to squeeze more performance out of currently operating satellites.(这是结论，增加了对perormance的要求）

 

 

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?（还需要什么条件，才能把information和conclusion,即cost会继续增加。更好的联系在一起）

 

 

A. Since the risk to insurers of satellites is spread over relatively few units, insurance premiums are necessarily very high.

B. When satellites reach orbit and then fail, the causes of failure are generally impossible to pinpoint with confidence.

C. The greater the performance demands placed on satellites, the more frequently those satellites break down.（这是必要条件，因为成本高了以后，对性能要求高，而性能要求高了以后，东西更容易坏，东西更容易坏了后呢，成本就更高）

D. Most satellites are produced in such small numbers that no economies of scale can be realized.

E. Since many satellites are built by unwieldy international consortia, inefficiencies are inevitable.

题目：

 

 

32.

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.

 

 

A, D and E all describe 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. Similarly, the impossibility of pinpointing the cause of failure, mentioned in B, is consistent with the cost of satellites remaining stable.

顾风

以下是引用adameye在2006-6-27 10:39:00的发言：

可否举个 “排除充分条件出现，必要条件不出现的情况。或充分条件一定能推出必要条件，或排除充分条件推不出必要条件的可能 ”的例子？

我没有以这样的方式总结，不过我觉得碰到这种题目，取非就可以了，对必要条件进行取非会得出逆命题。

kevin5

杨鹏难句 No. 008
This preference for exogamy, Gutman suggests, may have derived from West African rules governing marriage, which, though they differed from one tribal group to another, all involved some kind of prohibition against unions with close kin.

解释：本句有两个插入语，第一个插入语Gutman suggests割裂了主句的主语和谓语。West African rules后跟着两个修饰成分，第一个是分词修饰(governing marriage), 第二个是以which引导的非限定性定语从句，
从句中出现了第二个插入语though they differed from one tribal group to another，又割裂了从句引导词与谓语之间的联系。

----

我的问题：

which在它引导的从句中是做主语吗？如果是，all是个什么成分？

adameye

以下是引用顾风在2006-6-27 10:54:00的发言：

谢谢顾风。一直把performance理解为电视节目呢。所以一直都理解不了，为何电视节目被sqeeze out了之后，demand还增加：）

adameye

以下是引用顾风在2006-6-27 10:56:00的发言：

我没有以这样的方式总结，不过我觉得碰到这种题目，取非就可以了，对必要条件进行取非会得出逆命题。

嗯，我第一遍做的时候也是这样去做的。现在在用lawer的方法进行各类题型的汇总。发现自己总结的速度好慢。我把题目的基本逻辑都简单用中文写了一下，再把答案的回答方式用中文总结了一下。好耗时阿。不知道大家都是怎样总结的？

另外我的语法OG第一遍还没有做完，错误率狂高，于是把每道题的什么考点都写出来。这样一天做30道题一点都不轻松。根本没有时间去做大全或看白勇。

打算8月20号左右考，目标是至少要750。但是现在刚开始不久就严重受挫，逻辑OG第一遍平均2分钟一道，正确率70-75%, 语法1.5分钟一道，正确率50%-60%(OG10做到195道）, 阅读刚做了3天，共13篇，平均一篇15分钟，正确率75%-80%。

以这种基础要攻750是不是太夸张？请问各位有没有什么好的建议和意见？

发现GMAT语法好变态，一向以为自己语法不错。一做GMAT疯狂受挫。不过把每道题的考点都一一写出来2天后（哈哈，惭愧），发现有点感觉了。感觉对称结构和代词的逻辑指代能解决绝大部分的问题。哈哈，初生牛犊不怕虎阿，才刚开始，所以也许还不知道真正的难度在哪里。

顾风

以下是引用kevin5在2006-6-27 12:11:00的发言：

杨鹏难句 No. 008
This preference for exogamy, Gutman suggests, may have derived from West African rules governing marriage, which, though they differed from one tribal group to another, all involved some kind of prohibition against unions with close kin.

解释：本句有两个插入语，第一个插入语Gutman suggests割裂了主句的主语和谓语。West African rules后跟着两个修饰成分，第一个是分词修饰(governing marriage), 第二个是以which引导的非限定性定语从句，
从句中出现了第二个插入语though they differed from one tribal group to another，又割裂了从句引导词与谓语之间的联系。

----

我的问题：

which在它引导的从句中是做主语吗？如果是，all是个什么成分？

which是做主语。all修饰which吧（不是太确定）

顾风

以下是引用adameye在2006-6-27 13:00:00的发言：

嗯，我第一遍做的时候也是这样去做的。现在在用lawer的方法进行各类题型的汇总。发现自己总结的速度好慢。我把题目的基本逻辑都简单用中文写了一下，再把答案的回答方式用中文总结了一下。好耗时阿。不知道大家都是怎样总结的？

另外我的语法OG第一遍还没有做完，错误率狂高，于是把每道题的什么考点都写出来。这样一天做30道题一点都不轻松。根本没有时间去做大全或看白勇。

打算8月20号左右考，目标是至少要750。但是现在刚开始不久就严重受挫，逻辑OG第一遍平均2分钟一道，正确率70-75%, 语法1.5分钟一道，正确率50%-60%(OG10做到195道）, 阅读刚做了3天，共13篇，平均一篇15分钟，正确率75%-80%。

以这种基础要攻750是不是太夸张？请问各位有没有什么好的建议和意见？

发现GMAT语法好变态，一向以为自己语法不错。一做GMAT疯狂受挫。不过把每道题的考点都一一写出来2天后（哈哈，惭愧），发现有点感觉了。感觉对称结构和代词的逻辑指代能解决绝大部分的问题。哈哈，初生牛犊不怕虎阿，才刚开始，所以也许还不知道真正的难度在哪里。

逻辑大家方法不太一样，我看cd上比较推崇看og解释

要上750分不夸张吧。。。加油吧，你的基础不错。。。

littledou

以下是引用顾风在2006-6-27 13:05:00的发言：

which是做主语。all修饰which吧（不是太确定）

我认为杨鹏难句不能用GMAT的语法去抠，难句的目的是针对阅读的，特别是那些阅读有理解句子障碍的。

which all这种形式在SC里面是错误形式，大家参考OG157B的解释。

The phrase of which all in B is unidiomatic (all of which is the idiom).