51. What does the passage say about the startups?
- A. They never lose time in upgrading products for seniors.
- B. They want to have a share of the seniors' goods market.
- C. They invite seniors to their companies to try their products.
- D. They try to profit from promoting digital products to seniors.
答案：B
答案句：The market for products designed specifically for older adults could reach $30 billion by next year, and startups (初创公司) want in on the action.
参考译文：专为老年人设计的产品市场明年可能达到300亿美元，初创公司想要参与其中。
定位线索：题干“startups”→答案句“startups want in on the action”；文中“want in on the action”对应选项B“want to have a share of the seniors' goods market”。
解析：题干问关于初创公司的情况，答案句直接说明初创公司想要参与老年人产品市场，与选项B“想要在老年人商品市场分一杯羹”同义。选项A“从不浪费时间升级产品”无中生有；选项C“邀请老年人到公司试用产品”与原文相反（是创业者入住社区）；选项D“通过推广数字产品获利”范围过窄，原文指整个老年人产品市场。
53. What do we know about SentabTV?
- A. It is a TV program catering to the interest of the elderly.
- B. It is a digital TV which enjoys popularity among seniors.
- C. It is a TV specially designed for seniors to view programs.
- D. It is a communication system via TV instead of a computer.
答案：D
答案句：The startup's product, SentabTV, enables older adults who may not be comfortable with computers to access email, video chat and social media using just their televisions and a remote control.
参考译文：这家初创公司的产品SentabTV使可能不习惯使用电脑的老年人只需通过电视和遥控器就能访问电子邮件、视频聊天和社交媒体。
定位线索：题干“SentabTV”→答案句“SentabTV...enables older adults...access email, video chat and social media using just their televisions”；文中“using just their televisions”对应选项D“via TV instead of a computer”。
解析：题干问SentabTV是什么，答案句说明它让老年人通过电视和遥控器使用电子邮件、视频聊天和社交媒体，即一种通过电视而非电脑的通信系统，对应选项D。选项A“电视节目”偷换概念；选项B“数字电视”范围扩大；选项C“专门设计用于观看节目的电视”偷换概念，原文是通信功能而非观看节目。
55. What do we learn about the seniors in the Brookdale community?
- A. Most of them are interested in using the Sentab.
- B. They are quite at ease with high-tech products.
- C. They have much in common with seniors elsewhere.
- D. Most of them enjoy a longer life than average people.
答案：B
答案句：But Rodriguez says he's still learning something important by moving into this Brookdale community: “People are more tech-proficient than we thought.”
参考译文：但Rodriguez说，通过入住这个Brookdale社区，他仍在学习一些重要的东西：“人们比我们想象的更精通技术。”
定位线索：题干“seniors in the Brookdale community”→答案句“People are more tech-proficient than we thought”；文中“tech-proficient”对应选项B“quite at ease with high-tech products”。
解析：题干问Brookdale社区的老年人情况，答案句引用Rodriguez的话说他们“比想象的更精通技术”，即对高科技产品很熟悉，对应选项B。选项A“大多数对Sentab感兴趣”与原文Mary Lou Busch的拒绝不符；选项C“与其他地方老年人有很多共同点”无中生有；选项D“寿命更长”无中生有。