[解析]
(1)推理判断题。根据第一段With a fragrance(芳香) through the bedrooms of older adults for two hours every night for six months,memories skyrocketed.Participants in this study by University of California,Irvine (UCI) neuroscientists gained a 226% increase in cognitive capacity compared to the control group.The researchers say the finding transforms the long﹣known tie between smell and memory into an easy,non﹣invasive technique for strengthening memory and potentially preventing dementia(痴呆).(六个月来,随着香味在老年人的卧室里持续两个小时,记忆飙升。加州大学欧文分校神经科学家的这项研究参与者的认知能力比对照组提高了226%。研究人员表示,这一发现将嗅觉和记忆之间长期存在的联系转化为一种简单、无创的技术,可以增强记忆,并有可能预防痴呆症。)可知,这些发现可以应用于提高记忆力这一领域。故选B。
(2)段落大意题。根据第二段The project was conducted through the UCI Center for the Neurobiology of Learning &.Memory.It involved men and women aged 60 to 85 without memory impairment.All were given seven small containers,each containing a single and different natural oil.People in the enriched group received full﹣strength oils.Control group participants were given the oils in tiny amounts.Participants put a different container into their room each evening prior to going to bed,and it activated for two hours as they slept.(该项目是通过UCI学习与神经生物学中心进行的。记忆力研究对象为年龄在60至85岁之间且无记忆障碍的男性和女性。所有人都得到了七个小容器,每个容器都装有一种不同的天然油。强化组的人接受了全强度油。对照组的参与者服用了少量的精油。参与者每天晚上睡觉前把一个不同的容器放进房间,在他们睡觉的时候它会激活两个小时。)可知,第二段主要说明了研究的过程。故选D。
(3)细节理解题。根据第三段 People in the enriched group showed a 226% increase in cognitive performance compared to the control group,as measured by a word list test commonly used to evaluate memory.(通过常用于评估记忆的单词表测试,与对照组相比,强化组的人的认知能力提高了226%。)可知,研究人员是通过给参与者一个测试来评估参与者的表现。故选A。
(4)推理判断题。根据最后一段The team would next like to study the technique's impact on people with diagnosed cognitive loss.A product based on their study and designed for people to use at home is expected to come onto the market this fall.(该团队接下来想研究这项技术对被诊断为认知障碍的人的影响。根据他们的研究,一种专为人们在家使用而设计的产品预计将于今年秋天上市。)可知,研究人员未来将关注研究成果的应用。故选C。