When Paul Greenberg's son turned 12，he was asking for a smartphone of his own.He challenged Greenberg's reasons for why it wasn't a good idea，pointing out his dad's own addiction to his phone.That's when Greenberg decided to replace his smartphone with an old-fashioned flip phone and focus on spending time with his son.
   Greenberg ended up writing a delightful book about the transition，called "Goodbye Phone，Hello World：60 Ways to Disconnect from Tech and Reconnect to Joy"—but it's different from what you might expect.It's not an essay on the evils of technology，but a brief，and practical guide on how to live without a smart phone.
   The book is divided into chapters that explore the various sides of your life that will improve when you reallocate（重新分配）your time，such as finding a sense of purpose，strengthening mind and body，building better relationships with friends，family，and lovers，and healing the environment.But first，it opens with a message that our screen addiction is not so much a result of weakness，but rather a carefully invented plan by many computer scientists far more knowledgeable than we are about our own brains and nature.
   "I wanted to tell my son that people aren't addicted to screens because they're lazy，but instead because billions of dollars have been invested（投入） to make this outcome unavoidable.When you look into your phone，you think it's just your two eyes looking at a screen.What's really happening is that 10，000 programmers' eyes are looking back at you，following you，tailoring（定制）your environment so that you'll keep looking."
   "However，you can quit，refuse to play the game；and when you do，doors of opportunity open all around."
   This book is a pleasure to read.Its briefness is purposely suited to people who have lost their attention span（持續(xù)時間），but wish to regain it.I know that when my kids get home from school later today，they won't see me on my phone.I'll leave it inside and take them out to play Frisbee.

（1）What does the underlined word "transition" （in Paragraph 2）refer to？

B

B

A．Say yes to flip phone，Say no to Smartphone.
B．Less time with smartphone，More time with children.
C．Stop phone addiction，Set an example to children.
D． "Goodbye Phone，Hello World"—a delightful book.
（2）Which of the following topics is not covered in the book？

A

A

A．social evils of technology .
B．interpersonal relationships.
C．environmental protection.
D．physical and mental health.
（3）Which of the following statements about screen addiction might Greenberg agree with？

C

C

A．Screen addiction is the direct result of people's weakness.
B．Screen addiction is a sign of people's physical laziness.
C．Screen addiction is a trick created by computer scientists.
D．Screen addiction is unavoidable and a waste of money.
（4）What's the purpose of the passage？

B

B

A．To persuade people to put down smartphones.
B．To recommend a delightful book to readers.
C．To explore the reasons behind screen addiction.
D．To suggest ways to reconnected to a joyful life.