Argumment48 大家看看，必回砖，也欢迎有什么难题大家一起来讨论

jaojieUID: 195494

大侠们说要不要再go into details 一些呢，
欢迎有什么模糊的题一起探讨。
有砖必回，将连接刮后。：）
Argument48: 452 words   30 minutes
The following appeared in a newspaper article published in the country of Corpora.
'Twenty years ago, one half of all citizens in Corpora met the standards for adequate physical fitness as then defined by the national advisory board on physical fitness. Today, the board says that only one quarter of all citizens are adequately fit and suggests that spending too much time using computers may be the reason. But since overall fitness levels are highest in regions of Corpora where levels of computer ownership are also highest, it is clear that using computers has not made citizens less physically fit. Instead, as shown by this year's unusually low expenditures on fitness-related products and services, the recent decline in the economy is most likely the cause, and fitness levels will improve when the economy does.'

The speaker assert that the fitness levels of citizens nationwide has declined ,but not because of their use of computers for a long time ,rather the economic decline should be the cause. In order to prove that ,the speaker cites  a few facts and figures. However, I find the speaker's conclusion unfounded as it stands for several reasons.

To begin with, the speaker fails to convince us that the long time using computers is not the cause. The speaker based  the conclusion merely on the fact that the  Corpora region which has highest overall fitness level also has the highest computer ownership. It is high likely that although the local people own the computer, they do not use it frequently. Or they use it only for a short time with good protect method. So their fitness level  do not affected by computer using. Without ruling out such possibilities the speaker's conclusion is unconvincing.
Second, the author commits a fallacy that the Corporal's situation is the same as other areas nationwide. Firstly, the speaker compares the people's fitness level ten years ago in Corporal with the national situations of all people .The speaker thus  conclude that the fitness level fall from 50% to 25%, but fails to consider that the Corporal sample may not be representitive enough to generalize . Also, the speaker points out that the computer using has no relevant relationship with the health only because of Corporal's citizens seem unaffected.( in fact , it may not be the truth). One location’s situation  is not representitive enough to have a conclusion national.
Thirdly, the speaker unfairly assumes that the healthy decline is the result of the economic decline only assume  that the people's lower expenditures on fitness related products and service because of the economic factors.  However, there is no direct  evidence indicate that the economic decline make people spend less money on the fitness products and service. May be they just think those products and services are useless and expensive. Even if  people cut their cost on those product and services considering the money,  it can not prove that the related-fitness product and services has causal relationship with the fitness level of people .

In sum ,  the speaker do not lend strong support to the conclusion that the long time computer using is not the cause of fitness level decline , and the economic  boost can enhance the fitness level of people nationwide. To better support the conclusion, the speaker should provide more information like in other areas people’s healthy level and their time of using computers , also the using computer time in Corporal .And provide some evidence like how the economic factors influence the people’s fitness level.

lindaliUID: 185012

写的不错，有几点提出来讨论。

The speaker assert that the fitness levels of citizens nationwide has declined ,but not because of their use of computers for a long time ,rather the economic decline should be the cause. In order to prove that ,the speaker cites a few facts and figures. However, I find the speaker's conclusion unfounded as it stands for several reasons.

To begin with, the speaker fails to convince us that the long time using computers is not the cause. The speaker based the conclusion merely on the fact that the Corpora region which has highest overall fitness level also has the highest computer ownership. It is high likely that although the local people own the computer, they do not use it frequently. Or they use it only for a short time with good protect method. So their fitness level do not affected by computer using. Without ruling out such possibilities the speaker's conclusion is unconvincing.

Second, the author commits a fallacy that the Corporal's situation is the same as other areas nationwide. Firstly, 前面有second 了，换一个词吧the speaker compares the people's fitness level ten years ago in Corporal with the national situations of all people.???national advisory board 所作的调查，数据没有跟全国相比吧。The speaker thus conclude that the fitness level fall from 50% to 25%, but fails to consider that the Corporal sample may not be representitive enough to generalize . Also, the speaker points out that the computer using has no relevant relationship with the health only because of Corporal's citizens seem unaffected.( in fact , it may not be the truth). One location’s situation is not representitive enough to have a conclusion national.

Thirdly, the speaker unfairly assumes that the healthy decline is the result of the economic decline only assume that the people's lower expenditures on fitness related products and service because of the economic factors. 一句中有两个assume? However, there is no direct evidence indicate that the economic decline make people spend less money on the fitness products and service. May beMaybe they just think those products and services are useless and expensive. Even if people cut their cost on those product and services considering the money, it can not prove that the related-fitness product and services has causal relationship with the fitness level of people .这里应该说：人们减少开支的同时健康水平下降，不能证明产品与健康有关系吧！

In sum , the speaker do not lend strong support to the conclusion that the long time computer using is not the cause of fitness level decline , and the economic boost can enhance the fitness level of people nationwide. To better support the conclusion, the speaker should provide more information like in other areas people’s healthy level and their time of using computers , also the using computer time in Corporal .And provide some evidence like how the economic factors influence the people’s fitness level.

jaojieUID: 195494

明再看：）