1 . 随着互联网的发展，智能手机（smartphone）已被广泛应用。我们身边的“低头族（phubber）”随处可见，请根据以下提示写一篇短文。

1.低头族出现的场合：吃饭的时候，步行上学或上班的时候，睡觉前……；

2.这样做的弊端：影响与家人、朋友的关系（relationship）；容易引发交通事故；对身心健康有害，不利于学习和工作。

3.观点陈述：正确使用手机；面对面的交流胜过网上聊天……。

要求：1. 字数80左右（开头已经给出，不计入总词数）；

          2. 文中不得出现真实姓名和校名等信息。

参考词汇：have a bad influence on something; face-to-face conversation.

        With the development of the Internet, smartphones are widely used among people. Phubbers can be seen here and there.
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2 . 听对话，回答以下各小题。
1. How long has Kelly had her computer?

A．For 5 years.

B．For 10 years.

C．For 15 years.

2. What does John usually use the computer to do?

A．Do his homework.

B．Chat with friends.

C．Play online games.

3. How does Kelly finish her homework now?

A．By writing on the exercise book.

B．By surfing the Internet.

C．By using the computer.

3 . It's not easy to remember your number. That's because China has the longest mobile phone numbers in the world. Why is that?

In China, we have 11 digits which can be divided into three parts. Each part has a different meaning. The first three numbers tell you which mobile phone service provider you are using. The fourth to the seventh digits tell you which region the number is registered (注册) in. And the last four digits are random (随机的).

The main reason for using 11 digits is that we have the largest population in the world. Plus, mobile phone numbers can be recycled. Usually, the service provider will reuse a canceled (注销的) number after three to six months.

Besides China, Britain and Japan also use 11-digit mobile phone numbers. But their numbers always start with 0. So they cannot create as many numbers as we can. Countries like the United States, Australia and India use phone numbers with 10 digits. Canada's mobile phone numbers are perhaps the world's shortest: they use seven digits.

1. In the number of 18837105268, which digits tells you the registered region?

A．188

B．371

C．3710

D．5268

2. What's the main reason for using 11 digits?

A．Because we have the largest phone users in the world.

B．Because we have the largest population in the world.

C．Because we have the phone service provider in the world.

D．Because we have the largest phone numbers in the world.

3. As for a canceled number, what will the phone service provider do?

A．never reuse it	B．use it again at once
C．use it one month later	D．use it three months later

4. Which country uses 11-digit mobile phone numbers?

A．China

B．Britain

C．Japan

D．all of above

5. Which of the following is TRUE according to the passage?

A．7-digit mobile phone numbers may be the shortest worldwide.

B．The United Kingdom uses phone number with 10 digits.

C．Like China, Japan also uses 11-digit mobile phone numbers and always starts with 1.

D．Britain can create as many numbers as Chinese can.