African traditions and have clear social, political, and economic roles. However, most masks are worn only at particular times or on special occasions. For example, among the Dan and the Kota, certain people wear special masks to show their power when they act as judges and policemen within the community. Among the Bambara of Mali, headdresses are worn during planting and harvest celebrations.

　　Gallery C: West African Sculptures

　　West African sculptures are made from materials such as metal or wood. They are based on tribal traditions and are quite different. The Dogon are especially known for making figures of their ancestors (祖先). They believe their ancestors, called Nommo, came down from the sky at the beginning of time. Nommo figures are often shown with their hands reaching out to the sky. The collection contains several wonderful examples of Nommo sculptures.

语篇解读：文章介绍了Civic Art Museum的一个展览，并对每个展览馆的展品进行了概述。

　　5．What is special about Dogon houses?

　　A．They are shaped like human beings.

　　B．They are designed by the village leader.

　　C．They are grouped according to tradition.

　　D．They have many photographs inside them.

　　解析：选C　细节理解题。由Gallery A部分中的"Certain types of buildings are placed in particular areas according to the Dogon's complex philosophical tradition"可知答案。

　　6．West African masks ________.

　　A．have recently developed

　　B．play many different roles

　　C．are mainly worn at harvest time

　　D．show the everyday life of the Dan

　　解析：选B　细节理解题。由Gallery B部分中的"Masks are important to West African traditions and have clear social, political, and economic roles"可知，面具在各个领域均发挥着重要作用。

　　7．What do we know about the Dogon people?

　　A．They are afraid of Nommo figures.

　　B．They make statues of their ancestors.

　　C．They believe they will return to the sky.

　　D．They straighten their arms to show respect.

解析：选B　细节理解题。由Gallery C部分中的"The Dogon are especially known for