求助：gwd30-27

Q27:

Personnel officer:  The exorbitant cost of our health-insurance benefits reflects the high dollar amount of medical expenses incurred by our employees.  Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit.  Therefore, since we must reduce our health-insurance costs, we should offer a rigorous fitness program of jogging and weight lifting to all employees, and require employees who are out of shape to participate.

The conclusion reached by the personnel officer depends on which of the following assumptions?

1. A person who is fit would receive a routine physical checkup by a doctor less regularly than would a person who is out of shape.
2. The medical expenses incurred by employees who are required to participate in the fitness program would be less than those incurred by employees who are not required to participate.
3. The strenuous activities required of out-of-shape employees by the program would not by themselves generate medical expenses greater than any reduction achieved by the program.
4. The fitness program would serve more employees who are out of shape than it would employees who are fit.
5. The employees who participate in the fitness program would be away from work because of illness less than would the employees who do not participate.

   Answer:

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answer is c, i vote b. why c ?

C is right b/c it says that the net medical expenses would be less than now.

B would be right if we change it to:

The medical expenses incurred by employees who are required to participate in the fitness program are
   more than those incurred by employees who are not required to participate.

or:

The medical expenses incurred by employees who are required to participate in the fitness program would be less than those incurred by them now.

B would be right if we change it to:

The medical expenses incurred by employees who are required to participate in the fitness program are
   more than those incurred by employees who are not required to participate.

or:

The medical expenses incurred by employees who are required to participate in the fitness program would be less than those incurred by them now.

题干的推理过程是这样的：

(A)medical expenses high -> exorbitant cost

(B)out-of-shape -> medical expense high

(C)fitness program -> reduce medical expense

如果要C成立，即减少成立，那么总是必须不变或者减少。而选项C正好满足了这个要求。

如“罗马青年”所说，我觉得在GMAT中，有这样的一类“数学题”，其特征就是求某一个减少时的成立条件，那么答案的特征就是说这个东东所不会带来“增加”。

can someone explain about the meaning of C please~ 

i know b is wrong. but still don't get what is C trying to say...

还是不太明白B

这个说法说白了就是说明参加运动项目的好处

而且是从expense角度来说的好处

虽然没有C的切入点那么准确

可是也看不出来大错误呀

请NN指教

结论很明白表示Therefore, since we must reduce our health-insurance costs

所以必须有个前提是: 这个公司所提倡的strenuous activities的开销不能贵于其它的计划, 才能得出结论

(再不明白将C取非, 这个公司所提倡的strenuous activities的开销贵于其它的计划, 那就WEAKEN结论我们要降低成本..)

至于B选表示被要求参加fitness program的员工其医疗开销低于不需参加的员工->与文章第二句相左Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit.所以并非ASSUMPTON

请指教

陈述：如果把out of shape的员工拉去锻炼，那么就能给公司省下付保险的钱。

问：这个陈述的假设条件是什么？

答：如果把out of shape的员工拉去锻炼，他们在锻炼中受伤的代价让公司多付给保险公司的钱要比因为锻炼让他们健康状况提高后给公司省的钱少。

B：The medical expenses incurred by employees who are required to participate in the fitness program would be less than those incurred by employees who are not required to participate.

B 说的是所有雇员，不是out of shape的雇员。所以和推理联系不上。这是scoop shifting.  常考的推理缺陷之一。

LS说得好，

B的错误在于没有out of shape, 述说对象有问题

8楼的这个说法我认为不对：

“B：The medical expenses incurred by employees who are required to participate in the fitness program would be less than those incurred by employees who are not required to participate.

B 说的是所有雇员，不是out of shape的雇员。所以和推理联系不上。这是scoop shifting.  常考的推理缺陷之一。”

因为题目说了，we should offer a rigorous fitness program of jogging and weight lifting to all employees, and require employees who are out of shape to participate.

从这里可以看出来，employees who are required to participa 就是这些out of shape的员工，不存在8楼说的 “对象范围不一致”的问题。

我们来分析下B：

B是典型的无关比较，题目里说的是“增加健身”VS“降低医疗费用”之间的关系，

B根本就没有涉及到这两者之间的关系，只是比较“被要求参加的员工”VS“不被要求参加的员工”，无关；

而且B违反了原文提供的信息“ Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit.  ”（out of shape的员工的医疗费是大于其他fit的员工的）。