请教大全-9-2,大全-9-18,大全-9-19

joywzy

Companies O and P each have the same number of employees who work the same number of hours per week. According to records maintained by each company, the employees of Company O had fewer job-related accidents last year than did the employees of Company P. Therefore, employees of Company O are less likely to have job-related accidents than are employees of Company P.

2. Which of the following, if true, would most weaken the conclusion above?
(A) The employees of Company P lost more time at work due to job-related accidents than did the employees of Company O.
(B) Company P considered more types of accidents to be job-related than did Company O.
(C) The employees of Company P were sick more often than were the employees of Company O.
(D) Several employees of Company O each had more than one job-related accident.
(E) The majority of job-related accidents at Company O involved a single machine.

答案:B,我选了D.请问B是怎么削弱的呢?

18. Researchers have found that when very overweight people, who tend to have relatively low metabolic rates, lose weight primarily through dieting, their metabolisms generally remain unchanged. They will thus burn significantly fewer calories at the new weight than do people whose weight is normally at that level. Such newly thin persons will, therefore, ultimately regain weight until their body size again matches their metabolic rate.
The conclusion of the argument above depends on which of the following assumptions?
(A) Relatively few very overweight people who have dieted down to a new weight tend to continue to consume substantially fewer calories than do people whose normal weight is at that level.
(B) The metabolisms of people who are usually not overweight are much more able to vary than the metabolisms of people who have been very overweight.
(C) The amount of calories that a person usually burns in a day is determined more by the amount that is consumed that day than by the current weight of the individual.
(D) Researchers have not yet determined whether the metabolic rates of formerly very overweight individuals can be accelerated by means of chemical agents.
(E) Because of the constancy of their metabolic rates, people who are at their usual weight normally have as much difficulty gaining weight as they do losing it.

答案:A,这题看得我有点糊涂了.
19. In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average age of the United States population will increase between 1987 and 2000.

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.
(B) Arthritis will be the most common chronic medical condition in 2000.
(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.
(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.
(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

答案:C
这题我是用排除法得到了的答案.若是正面做,是怎么得出的呢>

谢谢.

1stzhang

我用有关无关分析一遍试试：
A:无关，没有这个比较点。
B:有关，和事故的发生有关。
C：无关，原因同A
D：有关
E：无关
但是，b是求异，d 是求同。Several employees of Company O each had more than one job-related accident.说明大部分的员工还是只有than one job-related accident.

2、
A:有关
B:没有比较点。无关
C:有关和原文说的是反的
D:两可，无关
E:有关和原文说的是反的 so,a;a 其实是排除他因

3、这个归纳就叫那些大牛牛们来解释吧，我可能解释得不好！！！

mindfree

D的问题在于它对结论无任何影响. 比较的是accidents, 不是number of employees who got accidents.

B对是因为P对job-related的定义相对O要广, 基于结论的依据是两公司各自的record, 言下之意为如果O使用P的定义, 其accidents的数量要比现在多, 所以B削弱.

18T. diet-->lost weigh while maintaining M rate -->regain weigh 意思是diet能控制体重. A取非原结论不成立.

joywzy

mindfree,

thank u for your kind help.

T2, the argument uses the assumption of the record of both companies. If the criterial is changed as B mentioned , that is the different kinds of accidents to job-related , the conclusion may be diffrent . Right?

T 18, i got it . thank u .

And what about T 19?

thank u very much ! I hope that u can get high score in the real test . Good luck.

mindfree

T2. 是这样.

T19. 我认为此题用POE做很好啊. 有些题用排除法要快, 尤其是此类题.