In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average of the United States population will increase between 1987 and 2000.
Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000. (B) Arthritis will be the most common chronic medical condition in 2000. (C) The average age of people suffering from sinusitis will increase between 1987 and 2000. (D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987. (E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.
读题的顺序： 01 首先读题干中的指令部分。 02 然后阅读题干，接着分析题干——就是根据题干的信息进行分类处理，找出其中作为推理的小前提的事实，事件，或者调查的数据，而且考生务必注意其中事件的时间和地点（就是概念的外延始终要保持一致，一旦出现概念的外延变化，或者整个概念的内涵变化，那么中间必然存在逻辑的分析）；下一步是找出题干中那些表达因果关系的过渡词或者术语（比如，therefore, clearly, we can thus conclude that…, in order to, we should therefore,等等），最后对题目的结构整理：小前提和结论两个 部分
现在我们来分析这个174题。
题目的分析处理：
题干分成十分清晰的四个句子。 先阅读指令：
Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?
In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order.
The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages.
The average of the United States population will increase between 1987 and 2000.
第一个句子是陈述的一个事实，时间在1987。这个时间是题目中陈述的事实成立的基础。如果时间改变，就可能导致整个事实的变化，那么这个事实是什么，和解题没有关系，所以记做： 1987 S >A>H
