[解析]
(1)细节理解题。根据第二段In the 1980s,researchers found gaining higher education is connected with a greater increase in lifespan than gains in wealth.(上世纪80年代,研究人员发现,接受高等教育与寿命延长的关系要大于财富增长。)可知,20世纪80年代研究人员发现教育的确能影响人的寿命。故选A。
(2)词义猜测题。根据第三段One fact is of teachers and college professors:they live longer than the rest of the population.The reason is that they engage in research most of their lives for teaching or publishing,which increases their life span and most importantly also retards their aging process.(一个事实是教师和大学教授:他们比其他人活得长。原因是他们一生中大部分时间都在从事教学或出版的研究,这延长了他们的寿命,最重要的是,也retards了他们的衰老过程。)可知,教师和教授比其他人活得更长,教学和出版的研究延长了他们的寿命,由此可知,这些活动也减缓了他们的衰老过程。即划线部分意为 "减缓",A.speeds up加速;B.slows down减缓;C.turns back转回;D.contributes to贡献。故选B。
(3)细节理解题。根据第四段Educated people get routinely involved in social networks;they get access to information because of their ability to understand information.They can easily navigate the health care system;they have more social support.(受过教育的人经常参与社交网络;他们能接触到信息,因为他们有理解信息的能力。他们可以很容易地驾驭卫生保健系统;他们有更多的社会支持。)可知,受过高等教育的人的优势是他们与社会联系更紧密。故选C。