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Pottery is one of the oldest crafts, which began to be practiced as soon as man learned to control fire, and long before the melting of metals. It enabled him from very early times to make vessels for storing and cooking food, for carrying water, and for burial purposes. Early vessels were shaped by hand and probably “fired” in a big bonfire by covering them over with dried grass and dead branches, which were then set alight.
A great advance in pottery followed the invention of the potter’s wheel and the kiln. It is not certainly known where the potter’s wheel was first used, but it is thought that by about 3,500 B.C potters in Central Asia were using some kind of wheel. From there its use spread west and east to Egypt, Crete, China—and then to Ancient Greece and Rome.
At first the wheel was nothing more than a small disc, turned on a pivot by hand, but later it was improved by raising it and providing it with a larger circular platform near the ground as well which could be rotated by the potter with his feet. Such a wheel was probably in use in Egypt by about 200 B.C., though this is only conjecture; but it was certainly still in use in Europe at the beginning of the nineteenth century. In the eighteenth century, however, the potter’s wheel was improved so that it could be worked by a treadle, or turned by an assistant. Modern potter’s wheels are power driven.
There are three principal ways articles may be made of pottery. They may be simply shaped by hand. They may be thrown on the potter’s wheel and shaped against the spin with the fingers or some scraping tool. Thirdly, the wet clay may be put in a pre-shaped “form” of plaster-of-Paris.
After the pots have been made, they are slowly baked in the kiln. This produces chemical changes in the clay which have a hardening effect. The time taken for firing pottery varies with the size of the kiln and the type of clay. It can take anything from 24 hours to as long as 2 weeks.
If pottery is to hold water, it must be “glazed”, since clay is porous by nature. Glaze consists of the raw materials of glass, ground together and mixed with water to a creamy consistency. The glaze is sprayed on to the pot which is then heated in the kiln again until it is, in effect, covered with a very thin layer of glass. This seals the pores in the clay and gives us the versatile table and oven dishes we know so well today.
1. The early making of pottery ________.
2. The first potter’s wheel was invented ________.
3. The ancient Greeks and Romans ________.
4. The three ways articles can be made of pottery are ________.
5. The time taken for firing pottery varies according to ________.

问题1选项
A.pre-dated the discovery of fire
B.post-dated the smelting of metals
C.was dependent on the control of fire
D.avoided the need for storing and treating food
问题2选项
A.in Central Asia
B.in Egypt
C.in Ancient Greece
D.probably before 3,500 B.C.
问题3选项
A.did not use the potter’s wheel
B.learned about the potter’s wheel form elsewhere
C.did not make pottery
D.carried the potter’s wheel to Egypt, Crete and China
问题4选项
A.spinning, molding and “throwing”
B.“throwing”, hand shaping and on a wheel
C.hand shaping, “throwing” on a wheel, and molding in a “form”
D.are becoming increasingly sophisticated
问题5选项
A.the type of clay the kiln is made of
B.the type of clay and the size of kiln it is baked in
C.the type of kiln the pottery is baked in
D.atmospheric conditions
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