and society at the Massachusetts Institute of Technology.She fears that children who do not learn real interactions, which often have imperfections, will come to know a world where perfect, shiny screens give them a false sense of intimacy (亲密) without risk.However, they need to be able to gather themselves and know who they are.So someday they can form a relationship with another person without a panic of being alone. "If you don't teach your children to be alone, they'll only know how to be lonely，" she said.

　　9．What did Willow and Luca fight about?

　　A．iPads. B．Little things.

　　C．Delicious food. D．Interesting things.

　　解析：选B　细节理解题。根据第一段中的"The arguments - over a fork, or who had more water in a glass - never stopped."可以看出，Willow和Luca为一些小事争吵。

　　10．How did the author's sister feel about offering children iPads?

　　A．She was critical of it.

　　B．She felt it was worth a try.

　　C．She was uncertain about it.

　　D．She felt surprised at its effect.

　　解析：选C　推理判断题。根据第三段内容可知，虽然作者的姐姐会用iPad让孩子们安静下来，但是她又担心这样做不好，因此说她对这种做法心存疑虑。

　　11．According to Dr. Gary Small, what should parents do?

　　A．Provide their children with various technologies.

　　B．Teach their children communication skills.

　　C．Talk to their children at the dinner table.

　　D．Limit their children's screen time.

　　解析：选D　推理判断题。根据倒数第二段中的"if people spend too much time on one technology ... prevent the development of certain communication skills"可知，长时间使用电子设备有碍于孩子们一些沟通技能的发展，因此家长应该限制孩子使用这些设备的时间。

　　12．What is Sherry Turkle worried?

　　A．Children are afraid of taking risks.

　　B．Children try to escape from the real world.

C．Children can't live without electronic devices.