The other day，my sister and I were sitting in the restaurant，trying to have a conversation，but her children，four-year-old Willow and seven-year-old Luca，would not stop fighting．The arguments-over a fork，or who had more water in a glass-never stopped．
   Then my sister reached into her handbag，produced two shiny iPads，and handed one to each child．Suddenly，the two were quite．They sat playing games and watching videos，and we continued with our conversation．
   After our meal，as my sister stuffed the iPads back into her bag，she said， "I don't want to give them the iPads at the dinner table，but if they keep them occupied for an hour so we can eat in peace，I often just hand them over．I am afraid that it's bad for them．I do worry that it makes them think it's OK to use electronics at the dinner table in the future．"
   Dr．Gary Small，director of the Longevity Center at the University of California，Los Angeles says that the brain is highly sensitive to stimuli（刺激物），like iPads and smartphone screen，and if people spend too much time on one technology，and less time interacting（互動）with people like parents at the dinner table，that could prevent the development of certain communication skills．
   "Conversations with each other are the way children learn to have conversations with themselves，and learn how to be alone，" said Sherry Turkle，a professor of science，technology 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（親密）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 will only know how to be lonely，"she said．

（1）What did Willow and Luca fight about？

A

A

A．Little things．
B．iPads．
C．Delicious food．
D．Interesting things．
（2）How did the author's sister feel about offering children iPads？

B

B

A．She was critical of it．
B．She was uncertain about it．
C．She felt it was worth a try．
D．She felt surprised at its effect．
（3）According to Dr．Small，what should parents do？

C

C

A．Provide their children with various technologies．
B．Teach their children communication skills．
C．Limit their children's screen time．
D．Talk to their children at the dinner table．
（4）What is Sherry Turkle worried？

C

C

A．Children are afraid of taking risks．
B．Children try to escape from the real world．
C．Children can't deal with companion-less situations．
D．Children can't live without electronic devices．