【单选题】
Uncle Sam is a tall， thin man. He‘s an older man with white hair and a white
bearD、He often wears a tall hat， a bow tie， and the stars and stripes of the
American flag.
Who is this strange， looking man? Would you believe that Uncle Sam is the US
government?But why do you call the US government Uncle Sam?
During the War of 1812， the US government hired meat packers to provide meat to
the army. One of these meat packers was a man named Samuel Wilson. Samuel was a
friendly and fair man.Everyone liked him and called him Uncle Sam.
Sam Wilson stamped the boxes of meat for the army with a large US for United
States. Some government inspectors came to look over Sam‘s company. They asked a
worker what the US on the boxes stood for.As a joke， the worker answered that these
letters stood for the name of his boss， Uncle Sam.
The joke spread， and soldiers began saying that their food came from Uncle Sam.
Before long， people called all things that came from the government “Uncle Sam‘s”
， “Uncle Sam” became a nickname for the US government.
Soon there were drawings and cartoons of Uncle Sam in newspapers. In these early
pictures， Uncle Sam was a young man. He wore stars and stripes， but his hair was
dark and he had not a bearD、The beard was added whenAbraham Lincoln was President.
President Lincoln had a bearD、
The most famous picture of Uncle Sam is on a poster from World War I. The
government needed men to fight in the war. In the poster， a very serious Uncle Sam
points his finger and says “I want YOU for the USArmy.”