题目内容：

阅读短文，根据短文回答问题，并将答案写在答题相应位置。(每题答案不超过20个单词。)

“Sorry for keeping you waiting. I left my cell phone at home，so I went hack to get it，” Adam said as he apologized to Vicky after arriving an hour late for their first date. Vicky tried to be polite，so she forced a smile and replied，“It’s all right. Let’s order something to eat.”While they were waiting for their food.Vicky discovered that Adam had been checking his cell phone. Just as she got the chance to talk to him·Adam’s cell phone rang and he answered it without delay. He talked continuously and totally ignored his date，who was sitting right next to him. Twenty minutes later, when Adam finally hung up and turned hack to Vicky，he saw nothing but an angry face. “Why don't you date your cell phone?”said Vicky. Then，she stood up and shouted，“Don’t ever call me again!”

We can understand why Vicky was so angry at Adam. In fact, like Adam, many people in modern society can't stand to be separated from their cell phones. With their cell phones, they talk to others, listen to music, check e-mall, and download applications as well as photos. Their dependence on this technological device has become so great that the cell phone is now often considered a necessity rather than a luxury ( 奢侈品). Some people cannot even imagine life without their cell phones. As a result, a psychological(心理学的) phrase known as "disconnect anxiety" was born.

According to psychologists, when these people are not using their phones. they may start to feel uneasy. Some feel socially separated without their cell phone. Others worry about not being able to respond to emergencies in time. Still others are so psychologically influenced by their cell phones that they often believe their phones have been ringing without their knowledge. Those who suffer from disconnect anxiety frequently check their cell phones for any missed calls or messages. In addition, they like to keep in touch with their friends-even just to kill time. What's more, if these heavy cell phone users discover that they have forgotten to bring their cell phones along with them, they will insist on returning home to get their "cells".

It's nice to have a cell phone, and it makes sense, of course,  to enjoy all the advantages this clever product has brought. However, we need to use it wisely. For example, when we are doing something important, we should turn off our cell phones to concentrate on our work. As for Adam, he had better leave his cell phone at home on his next date with Vicky-if he gets another chance to go out with her!

1.Why was Vicky angry with Adam and asked him not to call her again?

2.How may a person with "disconnect anxiety" feel without the cell phone?

3.What is the author's opinion about using cell phones?

4.Is it necessary for those heavy cell phone users to shorten the time of using cell phones? Why or why not?