Question

GRE阅读36套一道题目求解答

Authorities in California required drivers to use their
headlights on a certain road during the daytime as well
as at night and found that annual accident rates on the
road fell 15 percent from the previous level. They
concluded that applying the dayti me rule statewide
would lead to a similar reduction in accidents.

1. Which of the following, if true, most strengthens the
authorities' argument?
(A) Because an alternate route became available, the
volume of traffic on the test road decreased during
the test period.
(B) Drivers were informed of the requirement to use
their headlights on the test road by means of a
series of three conspicuous signs in each direction
of travel.
(C) Under certain conditions, among them fog and
heavy rain, most drivers in California already use
their headlights during the daytime.
(D) Full-scale application of the daytime rule would
cause headlight bulbs to burn out sooner than
they currently do and thus to require more
frequent replacement.
(E) The test road was selected to include a great
variety of the sorts of road conditions that drivers
in California are likely to encounter.

答案选E,但我不是很理解这五个选项，和文章中作者声明的论点有什么关系吗？

Answer 1

政府的观点是白天也打开车灯会减少交通事故。
A 由于另开了一条路，所以测试路段通行量减少（如果是真的，那么事故减少是车辆基数变小的缘故，与开不开车灯无关。实际上是反驳了政府的观点。）
B 在明显位置提示了司机要开灯（如果是真的，那么司机一路被警示，所以事故减少，也削弱了“开灯有用”的观点。）
C 天气不好的时候司机本来就会开灯（与政府观点无关）
D 白天开灯会缩短车灯寿命，导致更换更频繁（与政府观点无关）
E 测试路段包含了加州司机经常遇到的多种路况（证明测试的可信度，因而也就支持了改测试的结论——白天开灯好。）
【题目中有的选项就是会与问题无关，也有的与问题相反，就是要考你能不能从这些里边找出符合问题要求的，从而考查你的阅读能力。】