听力原文：Hello, I'll be your tour guide today here at the art museum so I'd like to welcom

听力原文： Hello, I'll be your tour guide today here at the art museum so I'd like to welcome you m this month's exhibit on native American pottery. We'll begin our tour in a few minutes. But first I'm going to tell you something about the way this pottery was created. Pottery was made all over ancient North America by many different groups of people. One of the earliest of these ancient American cultures was the Hohokam people. They lived in what is now Arizona from about 300 BC to 1500 AD. And it's their pottery that you will be looking at today. All of the pottery was made from clay. Some objects were for everyday use, like con miners for food and water: pots for cooking, and mugs, bowls and ladles for drinking and eating. You will also sec finger rings and animalshaped incense burners, which we believe were probably used in special rituals. The Hohokam formed their pottery vessels from coils of clay. They then shaped them with special tools to create very thin sides on the vessels. Afterwards they painted the pottery with red designs. Actually many of the pieces here have designs right on them that show how the pottery was used. Now I hope you'll enjoy the beauty and the uniqueness of the Hohokam pottery and this will give you some interesting insight about the people who created it. Please feel free to ask me any questions and thank you for joining us today.

(20)

A．To describe an upcoming video presentation,

B．To introduce a lecture series.

C．To introduce a speaker to a group.

D．To provide background information for a special exhibit.