( )1. Some Africans used
A. knives
B. rice
C. cows
D. elephant tusks
( )2. Why does paper money become popular today?
A. Because it is beautiful.
B. Because it is easy to carry.
C. Because it looks like a picture.
D. Because people like it better than gold or silver.
( )3. The passage tells us
A. money can be made of many things
B. the history of money
C. what kind of metal can be used as money
D. how paper money came into being
D
as money.A. knives
B. rice
C. cows
D. elephant tusks
( )2. Why does paper money become popular today?
B
A. Because it is beautiful.
B. Because it is easy to carry.
C. Because it looks like a picture.
D. Because people like it better than gold or silver.
( )3. The passage tells us
B
.A. money can be made of many things
B. the history of money
C. what kind of metal can be used as money
D. how paper money came into being
答案：1. D 【点拨】根据“Elephant tusks(象牙) and salt were used as money in some parts of Africa.”可知选 D。2. B 【点拨】根据“But both gold and silver coins were heavy to carry when people needed to buy something expensive.”可知，纸币被广泛使用是因为它易于携带。故选 B。3. B 【点拨】通读全文可知，本文主要讲述了钱的历史。故选 B。