泛世纪英语挑错大赛

活动目的：让大家从改错中测试自己的英语水平，从改错中发现自己的英语问题，改正不良的英语使用习惯。

活动细节：泛世纪将每周提供一篇英语短文或者一系列英语句子，大家可以从文章中挑毛病，包括用词、语法等一切可能的错误，您也可以使用您认为更好的句子进行改写。手段不限，目的只有一个：怎样能令这篇英语文章更加好。

参加方法:直接在此回帖,挑出错误和修改.

奖励：泛世纪将从每一期的参与者中选出最好的一个，评判标准是毛病挑得最全或者修改得最好的，又或者是提出的观点最具创造性的，该名获奖者将获得500红币的奖励，并在论坛中公布。

评判：泛世纪将邀请现在泛世纪上开课的老师轮流担任评判，每期评判都会给出自己的评语。

第一期挑错时间：11月14日 至 11月22日

第一期挑错文章：

Are two heads usually better than one? If you had a difficult
problem to solve, would you be better working on the problem
alone or working on it as part of a group? Years of research ha
yielded a consistent pattern of findings shows that groups typically
produce more, and produce better solutions to problems than the
same number as individuals working alone. For instance, a classic
experiment by Shaw had groups or individual subjects attempted to
solve problems involving conceptual and mathematical skill. In every
case, the groups produced more correct solutions than the individuals.
However, it was one important warning to the finding of
Group superiority: the groups were considerably less efficient,
when time considered, than the individuals were. In other words,
although groups produced more correct solutions, but they did so
at a cost of more time. In fact, much subsequent research has suggested
that the advantage of groups in solving problems can be
outweighed unless efficiency in terms of time per person is a major  criterion.

As a general rule, though, group performance in problem-solving
Situation is more qualitatively and quantitatively superior
to the performance of the average individual working alone. There are a number of reasons groups are generally better at problem solving than individuals.

[本帖最后由 仙人掌 于 2007-11-14 15:26 编辑]

Are two heads usually better than one? If you had a difficult
problem to solve, would you(YOU 改为IT) be better working on the problem
alone or working on it as part of a group? Years of research ha(HA应为HAS)
yielded a consistent pattern of findings （加上WHICH）shows that groups typically
produce more, and produce better solutions to problems than the
same number as individuals working alone. For instance, a classic
experiment by Shaw had groups or（OR应为AND） individual subjects （加THAT）attempted to
solve problems involving conceptual and mathematical skill. In every
case, the groups produced more correct solutions than the individuals.
However, it（IT应为THERE） was one important warning to the finding of
Group superiority: the groups were considerably less efficient,
when time considered, than the individuals were. In other words,
although groups produced more correct solutions, but(去掉） they did so
at a cost of more time. In fact, much subsequent research has suggested
that the advantage of groups in solving problems can be
outweighed unless efficiency in terms of time per person is a major  criterion.

As a general rule, though, group performance in problem-solving
Situation is more qualitatively and quantitatively superior
to the performance of the average individual working alone. There are a number of reasons（加上WHY) groups are generally better at problem solving than individuals.