一、阅读理解。
People in different parts of the world are doing different things at the moment because they are in different time zones. There are twenty-four time zones in the world.
Travelling west (向西), you set your clock back, while travelling east (向东), you set it ahead. It's seven o'clock in the morning in Beijing. Children are going to school and parents are going to work. Some people are waiting for buses. Some are driving cars and others are rushing to the subway stations. Old people are doing morning exercises in the park. But it's evening in London. Most people are sleeping in their rooms.
Now it's half past five in the afternoon in London. Most people are leaving for home from work. Some are going shopping, and others are preparing for dinner. But it's evening in Beijing. Most people are already in bed.
1. How many time zones are there in the world?
A. 7.
B. 12.
C. 24.
2. What does the underlined word “ahead” mean in Chinese?
A. 向前
B. 向后
C. 缓慢
3. It's seven o'clock in the morning in Beijing. What are most Londoners doing?
A. They are waiting for buses.
B. They are sleeping in their rooms.
C. They are going to school or work.
4. The text mentions some things EXCEPT (除了) ____.
A. waiting for buses
B. having afternoon tea
C. going shopping
5. What is the best title for the text?
A. Two Cities
B. People Around the World
C. People Are Doing Different Things in Different Time Zones

1—5 CABBC