XDF补充材料section1-5

5. Psychological research indicates that college hockey and football players are more quickly moved to hostility and aggression than are college athletes in noncontact sports such as swimming. But the researchers’ conclusion—that contact sports encourage and teach participants to be hostile and aggressive—is untenable. The football and hockey players were probably more hostile and aggressive to start with than the swimmers.

Which of the following, if true, would most strengthen the conclusion drawn by the psychological researchers?

(A) The football and hockey players became more hostile and aggressive during the season and remained so during the off-season, whereas there was no increase in aggressiveness among the swimmers.

(B) The football and hockey players, but not the swimmers, were aware at the start of the experiment that they were being tested for aggressiveness.

(C) The same psychological research indicated that the football and hockey players had a great respect for cooperation and team play, whereas the swimmers were most concerned with excelling as individual competitors.

(D) The research studies were designed to include no college athletes who participated in both contact and noncontact sports.

(E) Throughout the United States, more incidents of fan violence occur at baseball games than occur at hockey or football games.

答案为A，我选D，虽然觉得也不怎么样，但是觉得还是比A强点。。为何是A，那个season是赛季的意思么？

我做的题目可能不够多，og和prep-1，但是从来没有看了答案都不知道原因的。

这是第一道，呵呵。

顶一下。希望有人回答。个人更倾向于D，似乎答案错了。

我也做错了，我本来选得是C，也是觉得没有一个答案看上去是对的。

但后来结合答案A，再仔细看了一下题目，我想应该注意原文中：hockey and football players are more quickly moved to hostility and aggression 还有 The football and hockey players were probably more hostile and aggressive to start with than the swimmers. 所以，这样看来，答案 A 应该更合理. 不知道这样理解对不对？

Which of the following, if true, would most strengthen the conclusion drawn by the
                psychological researchers?

the conclusion of the researchers is"that contact sports encourage and teach participants to be hostile and aggressive"

就是接触性运动使参与者变得具有侵略性

A. 赛季开始后,接触性运动员变的具有侵略性而 非接触性运动员并没有这种变化 - 事实证明结论

D.说明研究不可靠,削弱

我估计你是看错题干了吧...

选a, 研究的结论是身体接触运动会让运动员充满攻击性。而非身体接触运动不会。a说明football and hockey player 在比赛中became充满攻击性，非赛季之后还保持这种攻击性。而这种效果没有在游泳游泳运动员身上产生。所以支持了研究的结论。其他选项与结论无关。

虽然题干中，作者试图反对研究结论but .....is untenable, 但是题目问的是most strengthen the conclusion drawn by the psychological researchers。