[求助]大全-18-2

2. Crimes are mainly committed by the young, and for this reason merely increasing the number of police officers or expenditures on police services has little effect on reducing the crime rate. In fact, the only factor associated with a crime-rate drop is a decrease in the number of people in the community aged fourteen to thirty.

The findings above can best serve as part of an argument against

(A) the likelihood that any law enforcement program will be effective in reducing the crime rate within a short time

(B) increasing prison terms for young people found guilty of crimes

(C) introducing compulsory military conscription for people aged seventeen to nineteen

(D) raising the age at which students are permitted to leave school

(E) a community’s plan to increase the number of recreational and educational activities in which young adults can participate

答案是A. 很不明白这个题目的推理路线......

怎么把其他几个排除呐???

觉得B,C都是支持得. 应该排除......

请求指点

多谢在先

指教不敢...

题曰：In fact, the only factor associated with a crime-rate drop is a decrease in the number of people in the community aged fourteen to thirty.

所以:　the likelihood that any law enforcement program will be effective in reducing the crime rate within a short time 当然不可能成功. 因为the only factor 是decrease in the number of people ... aged fourteen to thirty.

D和E:　无论如何, 或许可以一定程度上减少年轻人在社会上的时间. 总之, BCDE均和减少年轻人数量有关, 惟独A没有.

   increasing the number of police officers or expenditures on police services ——>crime rate不下降

   the number of people in the community aged fourteen to thirty下降后——>crime rate就下降

    就是说police相关等物无用，因此B没用。

    C减少了社区中14-30岁的人群——>有用

    D减少了社区中14-30岁的人群——>有用；

     E按照文章来看是无关选项

      个人观点

这一题应该是归纳题，题干就是against the likelihood that any law enforcement program will be effective in reducing the crime rate

而A就是：the likelihood that any law enforcement program will be effective in reducing the crime rate within a short time

多谢各位指点....

睡了一觉起来, 看到大家回答,偶大概就是这个归纳的时候没理解特别是后面者个时间给弄迷惑了......

(A) the likelihood that any law enforcement program will be effective in reducing the crime rate within a short time

大家讲的很精彩

多谢多谢