[解析]
(1)B.细节理解题。根据文章第二段The Robot Activity Support System,or RAS,uses sensors (传感器)equipped in a WSU smart home to determine where its residents are,what they are doing and when they need assistance with daily activities.机器人活动支持系统(RAS)使用WSU智能家居中配备的传感器(传感器)来确定其居民在哪里,他们在做什么以及何时需要日常活动的帮助,可知传感器起到了重大的作用。A.Signal lights信号灯;B.Sensors传感器;C.Videos视频;D.Head size头部尺寸。故选B.
(2)B.推理判断题。根据文章最后一段While we are still in an early stage of development,our initial results with RAS have been promising," 虽然我们仍处于开发的早期阶段,但我们在RAS方面取得的初步成果令人鼓舞,"可知正在测试阶段。故选B.
(3)D.观点态度题。根据文章最后一段While we are still in an early stage of development,our initial results with RAS have been promising," 虽然我们仍处于开发的早期阶段,但我们在RAS方面取得的初步成果令人鼓舞,"可知Minor的态度是非常乐观的。A.Doubtful怀疑的;B.Negative消极的;C.Uncertain不确定的;D.Positive乐观的,积极的。故选D.
(4)A.标题归纳题。根据第一段A robot created by Washington State University (WSU) scientists could help elderly people with dementia and other limitations live independently in their own homes.华盛顿州立大学(WSU)科学家创造的机器人可以帮助患有痴呆症和其他障碍的老年人独立生活在自己的家中。可知本文主要讲述机器人可以帮助患有痴呆症和其他障碍的老年人在自己的家中独立生活。因此选A.