1 . 听下面一段较长对话，回答以下小题。
1. What are the speakers mainly talking about?

A．A repair plan.

B．A travel arrangement.

C．The history of the wild wall.

2. What is an advantage of the unrepaired wall?

A．It is real.

B．It is safe.

C．It is tidy.

3. What do the speakers decide to do in the end?

A．Go to another place.

B．Protect the old wall.

C．Adjust their plan.

2 . 听下面一段独白，回答以下小题。
1. What did Marco Polo see when he was in China?

A．The Chinese invented paper.

B．The Chinese used paper money.

C．The Chinese planted trees for paper.

2. When did people in western countries first use paper money?

A．In the 7th century.

B．In the 13th century.

C．In the 15th century.

3. How many trees should be cut down to make one ton of paper?

A．17.

B．48.

C．71.

3 . 听第10段材料，回答小题。

1. When will the Burj Dubai be completed?

A．In 2010.

B．In 2009.

C．In 2008.

2. Where is the center of the tallest buildings at present?

A．In Europe and the Middle East.

B．In North America and Asia.

C．In Asia and the Middle East.

3. Why do people build so many tall buildings?

A．Tall buildings are wonderful to look at.

B．Tall building save more resources.

C．People like to live in tall buildings.

4. What is the height of the Empire State Building?

A．About 400 meters.

B．About 200 meters.

C．About 300 meters.