As the merchant class expanded in the eighteenthcentury North American Colonies, the silversmith and the coppersmith businesses rose to serve it. Only a few silversmiths were available in New York or Boston in the late seventeenth century, but in the eighteenth century they could be found in all major colonial cities. No other colonial artisans rivaled the silversmiths’ prestige. They handled the most expensive materials and possessed direct connections to prosperous colonial merchants. Their products, primarily silver plates and bowls, reflected their exalted status and testified to their customers’ prominence. Silver stood as one of the surest ways to store wealth at a time before neighborhood banks existed. Unlike the silver coins from which they were made, silver articles were readily identifiable. Often formed to individual specifications, they always carried the silversmith’s distinctive markings and consequently could be traced and retrieved. Customers generally secure the silver for the silver object they ordered. They saved coins, took them to smiths, and discussed the type of pieces they desired. Silversmiths complied with these requests by melting the money in a small furnace, adding a bit of copper to form a stronger alloy, and casting the alloy in rectangular blocks. They hammered these ingots to the appropriate thickness by hand, shaped them and pressed designs into them for adornment. Engraving was also done by hand. In addition to plates and bowls, some customers sought more intricate products, such as silver teapots. These were made by shaping or casting parts separately and then soldering them together. Colonial coppersmithing also come of age in the early eighteenth century and prospered in northern cities. Copper’s ability to conduct heat efficiently and to resist corrosion contributed to its attractiveness. But because it was expensive in colonial America, coppersmiths were never very numerous. Virtually all copper worked by Smiths was imported as sheets or obtained by recycling old copper goods. Copper was used for practical items, but it was not admired for its beauty. Coppersmiths employed it to fashion pots and kettles for the home. They shaped it in much the same manner as silver or melted it in a foundry with lead or tin. They also mixed it with zinc to make brass for maritime and scientific instruments.
1.According to the passage, which of the following eighteenth century developments had strong impact on silversmiths?
A. A decrease in the cost of silver.
B. The invention of heat efficient furnaces.
C. The growing economic prosperity of colonial merchants.
D. The development of new tools used to shape silver.
2.In colonial America, where did silversmiths usually obtain the material to make silver articles?
A. From their own mines.
B. From importers.
C. From other silversmiths.
D. From customers.
3.The passage mentions all of the following as uses for copper in Colonial America EXCEPT ______.
A. cooking pots
B. scientific instruments
C. musical instruments
D. maritime instruments
4.According to the passage, silversmiths and coppersmiths in colonial America were similar in which of the following ways?
A. The amount of social prestige they had.
B. The way they shaped the metal they worked with.
C. The cost of the goods they made.
D. The practicality of the goods they made.
1. C) 根據(jù)文章第一句“As the merchant class expanded in the eighteenthcentury North American Colonies,...”可知，隨著在十八世紀(jì)的北美殖民地商人階級膨脹起來，也就是說那時的商人財富有了很大的發(fā)展，銀匠銅匠們有機(jī)會發(fā)揮他們的專長了，這與選項C正好相符。
2. D) 根據(jù)文章第十四、五行“Customers generally secures …object they ordered. They saved coins, took them to smiths, and...”可知顧客要做銀器，首先要積攢銀幣，然后拿到銀匠處加工成他們想要的形狀。選項D“來自客戶”與之相符。
3. C) 文章末尾在提到銅的用途時惟獨沒有提到樂器。
4. B) 根據(jù)文章倒數(shù)第四行“They shaped it in much the same manner as silver or melted it in a foundry with lead or tin.”可知銀匠和銅匠在銀器和銅器的塑型方式上是一樣的，故選項B為正確答案。
