NN们帮帮忙~~这两道逻辑好难哦~~~

笑脸多多1003 · 发表于 2010-7-28 20:45:04

7.Throughout the 1950’s, there were increases in the numbers of dead birds found in agricultural areas after pesticide sprayings. Pesticide manufacturers claimed that the publicity given to bird deaths stimulated volunteers to look for dead birds, and that the increase in numbers reported was attributable to the increase in the number of people looking.
Which of the following statements, if true, would help to refute the claim of the pesticide manufacturers?
(A) The publicity given to bird deaths was largely regional and never reached national proportions.
(B) Pesticide sprayings were timed to coincide with various phases of the life cycles of the insects they destroyed.
(C) No provision was made to ensure that a dead bird would not be reported by more than one observer.
(D) Initial increases in bird deaths had been noticed by agricultural workers long before any publicity had been given to the matter.（D）
(E) Dead birds of the same species as those found in agricultural areas had been found along coastal areas where no farming took place.
8.Teenagers are often priced out of the labor market by the government-mandated minimum-wage level because employers cannot afford to pay that much for extra help. Therefore, if Congress institutes a subminimum wage, a new lower legal wage for teenagers, the teenage unemployment rate, which has been rising since 1960, will no longer increase.
Which of the following, if true, would most weaken the argument above?
(A) Since 1960 the teenage unemployment rate has risen when the minimum wage has risen.
(B) Since 1960 the teenage unemployment rate has risen even when the minimum wage remained constant.
(C) Employers often hire extra help during holiday and warm weather seasons.
(D) The teenage unemployment rate rose more quickly in the 1970’s than it did in the 1960’s.（B）
(E) The teenage unemployment rate has occasionally declined in the years since 1960.

gilgemash · 发表于 2010-7-29 13:34:25

1. The manufacturers said the number of birds rise is due to the increasing of volunteers' looking. How to refute this argument? (C) says that it is the agriculture worker instead of the volunteer who first noticed the increase of bird death, which negates the manufaturers' argument directly.
2. The argument means low teenage unemployment rate is determined by the minimum wage levelthe employer thinks too high to burden. How to weaken this argement? Just find the answer which will break this kind of relation. (B) tells us that when the minimum wages remained unchanged, the unempolyment rate is still rising, which means other unknown reasons will aslo cause the rising of unemployment. So (B) weakens the argument.

zhijingya · 发表于 2011-2-21 23:14:49

help 同问第一道题 D为什么对

westlifewsc · 发表于 2011-2-21 23:41:35

D明显是同因异果

xubotiffany · 发表于 2011-2-22 10:36:51

第一道选d，我觉得慢有道理的。
因为农业生产商说是因为现在曝光率高了志愿者多了才发现了更多的死鸟。
而d完全推翻了这个解释，因为在曝光前农民就已经发现更多的死鸟了。

7.Throughout the 1950’s, there were increases in the numbers of dead birds found in agricultural areas after pesticide sprayings. Pesticide manufacturers claimed that the publicity given to bird deaths stimulated volunteers to look for dead birds, and that the increase in numbers reported was attributable to the increase in the number of people looking.
Which of the following statements, if true, would help to refute the claim of the pesticide manufacturers?
(A) The publicity given to bird deaths was largely regional and never reached national proportions.
(B) Pesticide sprayings were timed to coincide with various phases of the life cycles of the insects they destroyed.
(C) No provision was made to ensure that a dead bird would not be reported by more than one observer.
(D) Initial increases in bird deaths had been noticed by agricultural workers long before any publicity had been given to the matter.（D）
(E) Dead birds of the same species as those found in agricultural areas had been found along coastal areas where no farming took place.
8.Teenagers are often priced out of the labor market by the government-mandated minimum-wage level because employers cannot afford to pay that much for extra help. Therefore, if Congress institutes a subminimum wage, a new lower legal wage for teenagers, the teenage unemployment rate, which has been rising since 1960, will no longer increase.
Which of the following, if true, would most weaken the argument above?
(A) Since 1960 the teenage unemployment rate has risen when the minimum wage has risen.
(B) Since 1960 the teenage unemployment rate has risen even when the minimum wage remained constant.
(C) Employers often hire extra help during holiday and warm weather seasons.
(D) The teenage unemployment rate rose more quickly in the 1970’s than it did in the 1960’s.（B）
(E) The teenage unemployment rate has occasionally declined in the years since 1960.

-- by 会员笑脸多多1003 (2010/7/28 20:45:04)

zhijingya · 发表于 2011-2-22 14:42:01

NN们帮帮忙这两道逻辑好难哦~

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