We all live on Earth and enjoy our life every day. Do you know all the interesting facts about the Earth?

The Earth is not round.

Do you think the Earth is round? Will the Earth is not completely round.

The Earth is really old.

Grandmas and grandpas are old, but the Earth is much older. Scientists think that the earth is about 4.5 to 5 billion (十亿) years old.

Much of the Earth is water.

About 70% of Earth is water, and only about 30% of Earth is land.

Earthquakes happen all the time.

Earthquakes (地震) take place all the time. But most of the time, they are very small and human beings cannot even feel them.

________.

There are many mountains on Earth. Mount Everest is the most famous one because its peak is five and one-half miles above sea level. It is the highest. There are more interesting facts about the Earth. Can you tell us some?

【小题1】How old is the Earth?

A．4 billion.

B．4.5 billion to 5 billion.

C．5 billion.

D．5 billion to 5.5 billion.

【小题2】How many facts are mentioned (被提到) in the passage?

A．Three.

B．Four

C．Five.

D．Six.

【小题3】Which sentence can be put in the blank (空格)?

A．Many mountains.

B．Mount Everest is very famous.

C．Mount Everest is five and one-half miles high.

D．Mount Everest is the highest mountain.

【小题4】What’s the best title for the passage?

A．Facts about Earth	B．The earthquake
C．Life on Earth	D．Mountains on Earth