lsat-2-2-16

icyeye

The advanced technology of ski boots and bindings has brought a dramatic drop in the incidence of injuries that occur on the slopes of ski resorts: from 9 injuries per 1,000 skiers in 1950 to 3 in 1980. As a result, the remainder of ski-related injuries, which includes all injuries occurring on the premises of a ski resort but not on the slopes, rose from 10 percent of all ski-related injuries in 1950 to 25 percent in 1980. The incidence of these injuries, including accidents such as falling down steps, increases with the amount of alcohol consumed per skier.

16. Which one of the following can be properly inferred from the passage?

(A) As the number of ski injuries that occur on the slopes decreases, the number of injuries that occur on the premises of ski resorts increases.

(B) The amount of alcohol consumed per skier increased between 1950 and 1980.

(C) The technology of ski boots and bindings affects the incidence of each type of ski-related injury.

(D) If the technology of ski boots and bindings continues to advance, the incidence of ski-related injuries will continue to decline.

(E) Injuries that occurred on the slopes of ski resorts made up a smaller percentage of ski-related injuries in 1980 than in 1950.

正确e。而我觉得a不就是文中所叙述的马？

flyingceleste

这题我以前问过，给你个联接http://forum.chasedream.com/dispbbs.asp?boardID=66&ID=90661&page=3原文没告诉你在1950年和1980年发生事故的总数各是多少啊，你只知道每年ski-related的事故所占比例上升了，怎么能推出这两年number of injuries 上升了哪，BTW，原文也推不出number of ski injuries decreases，只是说受伤的概率降低了，从9/1000人下降为3/1000人，偶非常菜，也不知道罗里吧索的讲清楚了没，但愿有点小小的帮助

[此贴子已经被作者于2005-2-17 19:20:59编辑过]

icyeye

谢谢，我明白了。就是说原文有相对数，而答案中却出现绝对数的选项，一般是不对的：）

kingdoms

这道题需要仔细看题干的最后一句话,翻译为中文的意思应该是:"这些伤害的发生,包括...,随着每个滑雪者饮酒数量的增加而增加."
这就是说饮酒多者更有可能受这些伤害,而不能推出总体酒的消费量增加.

我觉得关于这句话才是解答B为什么不对的关键.

[此贴子已经被作者于2006-8-19 11:51:56编辑过]