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Auctions(拍卖) are public sales of goods，made by an officially approved auctioneer. He asked the crowd assembled in the auction room to make offers，or bids，for the various items on sale.  He encouraged buyers to bid higher ?gures，and ?nally named the highest bidder as the buyer of the goods. This is called “knocking down the goods，for the bidding ends when the auctioneer bangs a small hammer on a table at which he stands.” This is often set on a raised platform called a rostrum.

The ancient Romans probably invented sales by auction，and the English word comes from the Latinauction，meaning “increase”. The Romans usually sold in this way the spoils taken in war，these sales were called “sub hash”，meaning “under the spear”，a spear being stuck in the ground as a signal for a crowd to gather. In England in the eighteenth century，goods were often sold by the candle：a short candle was lit by the auctioneer，and bids could be made while it stayed alight.

Practically all goods whose qualities varied are sold by auction. Among these are coffee，hides，skins，wool，tea，cocoa，furs，spices，fruit，vegetables and wines. Auction sales are also usual for land and property，antique furniture，pictures，rare books，old china and similar works of art. The auction rooms at Christies and Sotheby’ s in London and New York are world famous.

An auction is usually advertised beforehand with full particulars of the articles to be sold and where and when they can be viewed by prospective buyers. If the advertisement cannot give full details，catalogues are printed，and each group of goods to be sold together，called a “lot”， is usually given a number. The auctioneer need not begin with Lot 1 and continue in numerical order he may wait until he registers the fact that certain dealers are in the room and then produce the lots they are likely to be interested in. The auctioneer’s services are paid for in the form of a percentage of the price the goods are sold for. The auctioneer therefore has a direct interest in pushing up the bidding as high as possible.

1. A “bidder” (in Para. 1) is a person _______ .

A.who sells something.

B. who buys something.

C. who offers a price.   

D. who borrows something.

2. Auctioned goods are sold _______ price offered.

A. for the highest

B. for the ?xed

C. for the lowes

D.for the unexpected

3. The end of the bidding is called “knocking down” because _______.

A. the auctioneer knocks the buyer down        

B. the auctioneer knocks the rostrum down

C. the goods are knocked down onto the table  

D. the auctioneer bangs the table with a hammer

4. The “candle” used in paragraph 2 is ______ .

A. because they took place at night         

B. as a signal for the crowd to gather

C. to give light to the auctioneer           

D. to limit the time when offers could be made

5. An auction catalogue gives prospective buyers _______ .

A. the current market values of the goods  

B. details of the goods to be sold

C. the order in which goods must be sold        

D. free admission to the auction sale