数字时代：屏幕改变社交
Many grandparents are joining social media to keep in touch with their grandchildren. In the UK, more and more people over 55 are using Facebook. Soon, they will become the second-largest group on the site, with 3.5 million users aged 55 to 64 and 2.9 million users over 65.
Sheila, 59, joined Facebook to see what her grandchildren were doing. “My daughter posts photos and videos of them. It’s a much better way than waiting for letters. That’s how we did it when I was a child,” she says. “I’m lucky I can see much more of their lives than my grandparents did.”
However, Sheila’s grandchildren don’t use Facebook much. Many British children under 17 are leaving the site, but they are still enthusiastic about their smartphones. Chloe, 15, even sleeps with her phone. “It’s my alarm clock,” she says. “I look at it before I sleep and as soon as I wake up.”
Unlike Sheila, Chloe’s age group spends so much time on phones that they miss out on seeing friends in real life. Sheila, however, has found old school friends she hadn’t heard from for forty years. “We use Facebook to arrange meetings around the country,” she says. “It has completely changed my social life.”
Teenagers may have their parents to thank for this habit, as parents were the first to use smartphones. Peter, 38, father of two teenagers, used to be on his phone or computer all the time. “I always felt I was working,” he says. “How could I tell my kids to get off their phones if I was always in front of a screen?” In the evenings and at weekends, he replaces his smartphone with an old-style phone that can only call and text. “I am not completely cut off, but I am setting a better example and spending more quality time with my kids.”
1.1.Who is joining Facebook in growing numbers?
A Young people under seventeen.
B Teenagers who love their phones.
C People over fifty-five years old.
D People who love online games.
解析：选C。C 细节理解题。根据第一段“In the UK, more and more people over 55 are using Facebook.”可知，越来越多55岁以上的人在使用Facebook，与C“People over fifty-five years old”一致。A项“17岁以下的年轻人”原文说很多英国17岁以下孩子正在离开Facebook；B项“喜欢手机的青少年”是他们热衷于智能手机，不是加入Facebook；D项“喜欢网络游戏的人”文中没有提到，因此不选。故选C。
2.2. Why did Sheila join Facebook?
A To make new friends online.
B To know her grandchildren.
C To finish her work quickly.
D To buy some cheap things.
解析：选B。B 细节理解题。根据第二段首句“Sheila, 59, joined Facebook to see what her grandchildren were doing.”可知，Sheila加入Facebook是为了看孙辈在做什么，后文也提到她女儿发布孩子的照片和视频。B项“To know her grandchildren.”符合原文。A项她后来找到老朋友，但这不是她加入Facebook的目的；C项工作和D项买便宜智能手机文中都没有依据。故选B。
3.3. The underlined phrase “enthusiastic about” probably means _________ .
A worried about
B angry with
C crazy about
D surprised at
解析：选C。C 词义猜测题。根据“Many British children under 17 are leaving the site, but they are still enthusiastic about their smartphones. Chloe, 15, even sleeps with her phone.”可知，这些孩子虽然离开Facebook，却对智能手机非常热衷，甚至睡觉也带着手机。因此“enthusiastic about”意为“对……非常热衷/着迷”，与C项“crazy about”最接近。A项“worried about”、B项“angry with”、D项“surprised at”都不符合语境。故选C。
4.4. What does Peter’s story suggest?
A Parents’ habits influence their children.
B Teenagers should not use any phones.
C Old-style phones are becoming popular.
D Children should thank parents more.
解析：选A。A 推理判断题。最后一段提到“Teenagers may have their parents to thank for this habit”，这个短语意为“这个习惯的形成要归功于父母”，因为父母是最早使用智能手机的群体。并用Peter举例：他以前总在手机或电脑前，后来意识到自己不能一边总看屏幕一边要求孩子放下手机，于是改用只能打电话和发短信的旧手机来“set a better example”。由此可推出父母的习惯会影响孩子。B项 “青少年不应使用任何手机”太绝对；C项“旧式手机正在变得流行”不能由Peter一个人的做法推出；D项“孩子应更感谢父母”是对原文“have their parents to thank”字面误读，不是Peter 故事要说明的道理。故选A。
5.5. What is the passage mainly about?
A The best way to use social media.
B The danger of spending time online.
C Teenagers must give up smartphones soon.
D Different generations use technology differently.
解析：选D。D 主旨大意题。文章先写许多55岁以上老人加入Facebook以联系孙辈，再写青少年离开Facebook却痴迷智能手机，最后写父母使用手机的习惯影响孩子以及Peter的改变。整体是在讲不同代际对社交媒体或手机的使用方式不同。A项“使用社交媒体的最佳方式”文中没有给出；B项“上网时间的危险”只是部分内容且不是主旨；C项“青少年必须尽快放弃智能手机”过于绝对，与文中Sheila仍用Facebook联系老同学等内容不符，且不是文章主旨，故排除。故选D。