单选题 BUSINESS TELECARD INTERNATIONAL
You can use your Business Telecard International at any card phone in the UK. Here is some information about making international phone calls.
You can now phone almost any country in the world, although in some cases you can only call major cities. When you cannot make direct dialling calls, you can ask the international operator to help you. This is more expensive and takes more time, but it may be helpful if you want to speak to a particular person and no one else; in this case you should ask for a “person-to-person” call. Even more expensive is a reverse charge call where the person who receives the call pays.
If the international line is busy, you can reserve a call; explain the number you want and the operator will call you back when the line is free.
You can save money by calling outside office hours, e.g. early in the morning, late at night, and on Sundays. Remember that the time may be different in the country you are calling. International time is based on GMT (Greenwich Mean Time); London is on GMT and Moscow, for example, is 3 hours ahead. There is one problem; change to DST (Daylight Saving Time) for the Summer. In the UK, clocks are put forward one hour in Spring and put back in Autumn, and so London is actually one hour ahead of GMT in the Summer. If you are unsure about the time, the operator-will help you.
You can use your Business Telecard International for domestic calls as well, but there will be an additional charge over the standard rate.

单选题 What is the most expensive type of call?

【正确答案】 A

【答案解析】[精析] 题目问题：拨打哪种电话收费最高?从原文第二段找信息：有接线员帮助的电话较贵。但注意：Even more expensive is a reserve charge call where the person who receives the call pays．更贵的是接电话人付费的预订收费电话。选项A正是预订收费电话。故选A。

单选题 What can you do if the international line is engaged?

【正确答案】 C

【答案解析】[精析] 题目问题：如果国际线路繁忙，你该怎么办?原文第三段：If the international call is busy, you can reserve a call. 如果国际线路繁忙，你可以预订电话。选项C正是预订电话的意思。注意：book与reserve一样，有“预订，预留”的意思。故选C。

单选题 When is it cheaper to make an international call?

【正确答案】 C

【答案解析】[精析] 题目问题：什么时候打国际电话便宜些?原文第四段：You can save money by calling outside office hours，e.g. early in the morning, late at night, and on Sundays. 如果在办公以外的时间，比方说大清早、深夜和周日的时候拨打电话，你可以省些钱。选项C：晚间11点，也就是深夜，与原文相符。故选 C。

单选题 How many hours is Moscow ahead of London during the summer?

单选题 What must you do if you use your telecard to make a local call?

【正确答案】 B

【答案解析】[精析] 题干问题：如果使用电话卡拨打本地电话，你必须怎样?原文最后一段可知：使用国际商务电话卡拨打国内电话，会在标准收费率的基础上另外收费。选项B正是多付钱的意思，extra有“多余的、额外的”意思。故选 B。