Question

【題目】根據(jù)短文內(nèi)容，從短文前方框內(nèi)的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)，并在答題卡上將該項(xiàng)涂黑。

A. Each part has a different meaning.

B. So they cannot create as many numbers as we can.

C. That’s because China has the longest mobile phone numbers in the world.

D. Also, mobile phone numbers can be recycled.

E. The main reason for using 11 digits is that we have the largest population in the world.

Have you ever counted the number of digits(數(shù)字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number.【1】Why is that?

The 11 digits can be divided into three parts.【2】The first three numbers tell you which mobile phone service provider you are using. For example, 135 is for the China Mobile Communication Corporation and 188 is for China Unicom. The fourth to the seventh digits tell you which area the number is recorded in. And the last four digits are random (隨機(jī)的).

【3】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.

Eleven digits can be used to make tens of billions of mobile phone numbers, according to the Xinhua News Agency. That’s enough for each person to have seven or eight phone numbers to use in China.【4】Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven’t contacted (聯(lián)絡(luò)) for a long time, you may find that its owner has changed.

Besides China, Britain and Japan also use 11-digit mobile phone numbers. But their numbers always start with 0.【5】Countries like the United States, Australia and India use phone numbers with l0 digits. Canada’s mobile phone numbers are perhaps the world’s shortest: they use seven digits.

Answer 1

【答案】

【1】C

【2】A

【3】E

【4】D

【5】B

【解析】試題本文介紹了熟記電話號(hào)碼的步驟，同時(shí)也簡(jiǎn)單介紹了不同國(guó)家使用移動(dòng)號(hào)碼的差異。

【1】根據(jù)Your number has 11 digits. You may sometimes find it hard to remember your number.，難記住你的11位電話號(hào)碼。可知備選句子That’s because China has the longest mobile phone numbers in the world.解釋了原因，故選C。

【2】根據(jù)The 11 digits can be divided into three parts.以及下文對(duì)移動(dòng)和聯(lián)通的舉例，可知備選句子Each part has a different meaning.符合題意，故選A。

【3】根據(jù)下文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.，解釋了增加數(shù)位的原因，備選句子The main reason for using 11 digits is that we have the largest population in the world.符合題意，故選E。

【4】根據(jù)Usually, the service provider will reuse a canceled number after three to six months.運(yùn)營(yíng)商將在三到六個(gè)月后重用被取消的號(hào)碼，可知談的是號(hào)碼回收問(wèn)題。備選句子中，Also, mobile phone numbers can be recycled.符合題意，故選D。

【5】根據(jù)Countries like the United States, Australia and India use phone numbers with l0 digits.例舉的都是不到10位的電話號(hào)碼，可知備選句子So they cannot create as many numbers as we can.符合題意，故選B。