阅读理解。
The flag, the most common symbol (象征) of a nation in the modern world, is also one of the most
ancient. With a clear symbolic meaning, the flag in the traditional form is still used today to mark buildings,
ships and other vehicles related to a country.
The national flag as we know it today is in no way a primitive (原始的) artifact. It is,rather, the product
of thousands of years' development. Historians believe that it had two major ancestors, of which the earlier
served to show wind direction.
Early human beings used very fragile houses and boats. Often strong winds would tear roofs from houses
or cause high waves that endangered travelers. People's food supplies were similarlyvaluable. Even after they
had learned how to plant grains, they still needed help from nature to ensure good harvests. Therefore they
feared and depended on the power of the wind, which could bring warmth from one direction and cold from
another.
Using a simple piece of cloth tied to the top of a post to tell the direction of the wind was more dependable
than earlier methods, such as watching the rising of smoke from a fire. The connection of the flag with
heavenly power was therefore reasonable.
Early human societies began to fix long pieces of cloth to the tops of totems (图腾) before carrying them
into battle. They believed that the power of the wind would be added to the good wishes of the gods and
ancestors represented by the totems themselves.
These flags developed very slowly into modern flags. The first known flag of a nation or a ruler was
unmarked: The king of China around 1000 B.C. was known to have a white flag carried ahead of him. This
practice might have been learned from Egyptians even further in the past, but it was from China that it spread
over trade routes through India, then across Arab lands, and finally to Europe, where it met up with the other
ancestor of the national flag.
1. The best title for the passage would be _____.
A. Development of the National Flag
B. Power of the National Flag
C. Types of Flags
D. Uses of Flags
2. The underlined word "vulnerable" in Paragraph 3 means _____.
A. impossible to make sure of
B. likely to be protected
C. easy to damage
D. difficult to find
3. The earliest flags were connected with heavenly power because _____.
A. they could tell wind direction
B. they could bring good luck to fighters
C. they were handed down by the ancestors
D. they were believed to stand for natural forces
4. What does the author know of the first national flag?
A. He knows when it was sent to Europe.
B. He believes it was made in Egypt.
C. He thinks it came from China.
D. He doubts where it started.
5. What will the author most probably talk about next?
A. he role of China in the spread of the national flag.
B. The second ancestor of the national flag.
C. The use of modern flags in Europe.
D. The importance of modern flags.

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