阅读理解。
Flags have existed for over 3000 years. The earliest flags were wooden or metal poles topped with a
carving (雕刻品). About 2000 years ago pieces of fabric were added to some poles for decoration. Over the next 500 years the free-flying part of the flag became more important.
Every country today has its own flag. Many groups and organizations also have a flag which stands for, or symbolizes, the aims of the group.
The UN flag depicts (描绘) a world map, centered on the north pole. The map is surrounded by an
olive (橄榄)wreath (花环)symbolizing peace and co-operation. The flag is blue and white.
1. Flags have been in existence for _____ .
A.500 years
B. more than 3000 years
C. about 2000 years
D. between 500 and 2000 years
2. A very old flag is likely to _____.
A. be made of fabric
B. have a map on it
C. have white shapes on it
D. be made of carved wood
3. An olive wreath is used to represent _____ .
A. peace
B. purity
C. justice
D. equality
