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标题: 【诚心求助prep 57~非常感谢大家!~】 [打印本页]

作者: 水色青空    时间: 2010-4-30 20:47
标题: 【诚心求助prep 57~非常感谢大家!~】
57.(34655-!-item-!-188;#058&007580)



Roland:The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed.



Sharon:But a normal, moderate level of unemployment is 5 percent, with 1 out of 20 workers unemployed.So at any given time if a person knows approximately 50 workers, 1 or more will very likely be unemployed.



Sharon's argument is structured to lead to which of the following as a conclusion?



(A) The fact that 90% of the people know someone who is unemployed is not an indication that unemployment is abnormally high.

(B) The current level of unemployment is not moderate.

(C) If at least 5% of workers are unemployed, the result of questioning a representative group of people cannot be the percentage Roland cites.

(D) It is unlikely that the people whose statements Roland cites are giving accurate reports.

(E) If an unemployment figure is given as a certain percent, the actual percentage of those without jobs is even higher.











答案选A,
相信这题大家基本上都做过了,有很多种题型,假设削弱都有,但是对于题目本身我一直有些疑问
S说的话从哪个方面反驳了R了?我没有看出他们两个对话之间的逻辑关系???

R说有90%的人说他们知道有人失业
S说这并不稀奇,然后就举了一个失业率5%的例子。
还是没有看懂???希望大家帮帮忙~~~~非常感谢!~~

作者: conniequan    时间: 2010-4-30 21:06
R想表达的意思是90%的人都说认识失业的人,暗示说现在失业率比正常的高(alarming fact)
S说,正常的失业率是5%,也就是,如果一个人认识50个人,那里面就会有一个失业的。
所以90%的人认识失业的人并不能说明失业率不正常。
不知道这样说清不清楚。。。呵
作者: 水色青空    时间: 2010-4-30 21:25
R想表达的意思是90%的人都说认识失业的人,暗示说现在失业率比正常的高(alarming fact)
S说,正常的失业率是5%,也就是,如果一个人认识50个人,那里面就会有一个失业的。
所以90%的人认识失业的人并不能说明失业率不正常。


就是这个地方不懂,烦请再解释一下哈~~一个人认识50个人,在失业率5%的情况下,至少有2.5人是失业的,那么这和那个90%有什么关系呢??谢谢了~
不知道这样说清不清楚。。。呵
-- by 会员 conniequan (2010/4/30 21:06:59)






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