Question

【题目】Do you know how many numbers there are in your cellphone number? Your cellphone number has 11 digits(数字). You may sometimes find it hard to remember your number. China has the longest cellphone numbers in the world, longer than the US or Australia. Why is that?

The 11 digits 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. For example, 135 is for the China Mobile Communications Corporation and 186 is for China Unicom. The fourth to the seventh digits tell you which area the number is registered (注册) in. And the last four digits are random. You may get the last numbers that you like or not.

The main reason for using 11 digits is that we have the largest population in the world. We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999.

Cellphone numbers can be recycled. Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven't contacted (联系) for a long time , you may find its owner has changed.

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

【1】Among the 11 digits, which digits can tell where the cellphone number is registered?

A. The first to the fourth digits. B. The third to the sixth digits.

C. The fourth to the seventh digits. D. The fifth to the eighth digits.

【2】What does the underlined word "random" mean?

A. 有规则的 B. 奇怪的 C. 随机的 D. 事先安排的

【3】Which country has the cellphone number with ten digits?

A. Britain. B. Japan. C. Canada. D. India.

【4】What can we learn from the last two paragraphs?

A. Cellphone numbers in Britain start with 0.

B. Cellphone numbers can be divided into 4 parts.

C. A canceled number can be reused after a month.

D. The cellphone number in Australia is the shortest.

【5】What ' s the best title of this text?

A. What the meaning of cellphone numbers is?

B. Why our cellphone numbers have 11 digits?

C. When the first cellphone number was created?

D. Which country has the longest cellphone number?

Answer 1

【答案】

【1】C

【2】C

【3】D

【4】A

【5】B

【解析】

文章大意：本文介绍了手机号码为什么有11个数字，11个数字可以分为三部分，每一部分有不同的含义，同时也简单介绍了不同国家使用手机号码的差异。

【1】细节理解题。根据文中的句子The fourth to the seventh digits tell you which area the number is registered in.可知，在这11位数字中，第4位到第7位数字能告诉你手机号码的注册地，故答案选C。

【2】词义猜测题。根据句意And the last four digits are random. You may get the last numbers that you like or not.最后四个数字是….，你可能会得到你喜欢或不喜欢的最后一个数字。由后面的“你可能会得到你喜欢或不喜欢的最后一个数字”可知，最后四个数字应该是随机的，故答案选C。

【3】细节理解题。根据文中的句子Countries like the US, Australia and India use cellphone numbers with 10 digits,美国、澳大利亚和印度等国家使用10位数字的手机号码。结合选项，可知D选项符合题意，故答案选D。

【4】理解判断题。根据最后一段中的句子Besides China, Britain and Japan also use 11-digit cellphone numbers. But their numbers always start with 0.可知A选项“英国的手机号码是以0开头的”是正确的，故答案选A。

【5】标题归纳题。根据文中的句子Your cellphone number has 11 digits. …… Why is that? 和The 11 digits can be divided into three parts. Each part has a different meaning.以及The main reason for using 11 digits is that we have the largest population in the world.可知，本文主要讲述我们的手机号码为什么有11个数字，故答案选B。