题目内容：

Archimedes was a great scientist who lived in Greece long,long ago.He was so wise that even the king was his friend.

One day the king asked him,"How do you like my new crown?It's all gold."The king continued,"I gave a man gold to make this crown.But I think he may have kept some of it.”

“You are a wise man,”the king went on.“Find out if this crown is all gold.That way I will know if the man kept some of my gold.”

Archimedes thought about the crown for a long time.Then,one day he had an idea.He thought of it as he stepped into his bathtub.He saw that the water ran out over the sides.

"I've got it!"he yelled.He jumped out of his bathtub.He ran all the way to the king's home even without dress.

Archimedes asked the king for a piece of gold."It must be the same size as the one you gave the man,”he said. Then he filled a tub with water.In it he put the piece of gold.The water rose.He then took the gold out.He put the crown in the tub.The water rose even higher than before.That should not have happened!The crown and the piece of gold should have taken up the same space in the tub.Something had been added to the crown.It may have been silver. It may have been something else.But the crown was not all gold.

Archimedes’s idea was so clever that it is still used today.And he went on to learn many other things.But he sometimes got his ideas in strange places.

1.What does the underlined word "it" in Paragraph 2 refer to?

A. The crown    B. The bathtub.

C. Silver.    D. Gold.

2.What inspired Archimedes to come up with the idea?

A. The bright color of the crown.    B. The King’s encouraging words.

C. The water running over the bathtub.    D. The bathtub awarded by the king.

3.Why did Archimedes go to the king's home without dress?

A. Because he went mad.    B. Because he was so excited.

C. Because of the hot weather.    D. Because of the local customs.

4.What's the author's the attitude towards Archimedes?

A. Favorable.    B. Unconcerned.

C. Disapproving.    D. Worried.