GWD26--31

gonghao

When people engage in activities that help others ,their brain releases endorphins,

the brain’s natural opiates, which induce in people a feeling of well-being. （背景信息）It has

been suggested that regular release of endorphins increases people’s longevity.（注意suggested暗示，并未被证实）

And a statistic on adults who regularly engage in volunteer work helping others

shows that they live longer, on average, than adults who do not volunteer. How-

ever, that statistic would be what we would expect （even if volunteering does not

boost longevity条件状语）, because
            .（because应该解释主句，即that statistic would be what we would expect ）

what we would expect = adults who regularly engage in volunteer work helping others shows that they live longer, on average, than adults who do not volunteer

以前我一直支持C，但是现在又分析一次，文章要求解释的是statistic（做志愿者的人平均比不做志愿者的人要长）

A：给了另外一个原因，为什么志愿者比不做志愿者的人活的长，因为做志愿者的多为女性，女性活的长，所以on average做志愿者的人平均比不做志愿者的人要长

C： the feelings of well-being induced by endorphins can, at least for a time, mask the symptoms of various conditions and diseases, provided the symptoms are mild.

问题1：mask。掩饰能延长人的生命吗？

问题2：provided the symptoms are mild.这样一个范围是否有人为增加之嫌？这样的症状不明显的人的比率是否足够大能使得平均数有变化呢？

对于C还是有问题的。

现在看来A更加的贴合答案。现在开始同意lawyer的观点了

打豆豆

以下是引用davidli8888在2006-12-2 15:39:00的发言：

Yes, the correct answer should be A. It follows that even if the volunteering does not BOOST the longevity, those who lives longer do the volunteering work more than others who lives shorter. It retains the conclusion but weaks the conditions supporting that conclusion.

The original reasoning: volunteering work --> live longer, now the conclusion weakens to: not make live longer but those who live longer engage in the volunteering work.

同意这个解释.

把A换个顺序看，会清楚很多:

in the communities studied,women tend to live longer than men do,and women were much more likely to do regular volunteer work than men were.

brass20y

up

won872

“It has

been suggested that regular release of endorphins increases people’s longevity.

And a statistic on adults who regularly engage in volunteer work helping others

shows that they live longer,”

 

One of advantages for helping others--- endorphins increases people’s longevity

 

However, that statistic would be what we would expect even if volunteering does not

boost longevity, because .

 

“However” take another perspective.

 

“would be what we would expect even if” Which means beside the point, … Think out side of the box???

 

What if the optimism emotion gaining from helping others can have positive impact on the ailment of the volunteer, thus allow him recover sooner and be healthier and live longer. This comes from different perspective---emotional health---other than physical benefit and thus best complete the passage.