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For many years the United States and the other countries used gold and silver as money. Paper money
was used to stand for the holdings (储备) of both gold and silver. The value of silver was limited to that
of gold. Fifteen ounces (盎司) of silver had the same value of one ounce of gold. These values did not
change until after 1860 when mines (银矿) in the west of the United States began to    1    large amounts
of silver. This extra amount of silver caused the price of silver to    2    . Then fifteen ounces of silver
would no longer buy one ounce of gold. In 1871 Germany declared (宣布) that it would not support its
paper money with silver any more. Instead, it would use only gold. Other countries of Europe quickly
    3    the same. The United States passed a law in 1973 that prevented the government from using silver
as money. Western silver producers protested (抗议) loudly and put much pressure on the    4     makers. Five years later a new law was    5     . It said that the government must buy four and half million ounces
of silver each month. The new law increased the amount of silver money. The country had two kinds of
quite different views on the issue (发行) silver money. Businessmen, bankers and other rich men wanted
to    6    the use of silver money because it made the dollar less valuable. But farmers, labourers and the
others who owned the money not only wanted silver money but also wanted an unlimited supply of it.

(     )1. A. produce (     )2. A. rise     (     )3. A. did     (     )4. A. law     (     )5. A. refused (     )6. A. end

B. find       B. lift       B. took       B. money     B. accepted   B.  continue

C. search   C. fall     C. made     C. gold     C. planned C. protect

D. dig     D. set     D. acted. D. silver D. passed D. allow

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