题目内容：

    Is there anything strange high up in the worlds tallest mountains? If so, is it a big bear? Is it a monkey? Or is it a kind of man? No one knows This mystery has puzzled(迷惑 )the world for years.

In 1887, a mountain climber found large footsteps(脚印) in the snow.They looked like the footsteps of a very large man.But men don' t walk without shoes in the snow.

In 1906, another climber saw many more footsteps.Far off, he saw a very large animal standing on two legs.As he watched, it ran away very quickly.Fifteen years later, a newspaper had new stories about"something".A mountain climber said he had seen the snowman walk slowly in the snow.He said it looked like a very large man.

From then on, more and more people had stories to tell.But not until 1951 did a mountain climber took the pictures of the large footsteps.The pictures showed clearly that the snowman walked on two legs.So it was not a bear or a monkey.Could it be an apeman(猿人)? And the mystery keeps growing.Some day we may find out just what it is that makes the large footsteps.

1.What happened in 1887 according to the passage

A.A mountain climber found a large man. B.A mountain climber found large footsteps.

C.A mountain climber found a terrible bear. D.A mountain climber found a lovely monkey.

2.When were the pictures of the large footsteps taken?

A.In1887 B.In1906 C.In1921 D.In1951

3.It was not a bear or a monkey because

A.it walked slowly.

B.the footsteps were big.

C.people still know what made the footsteps.

D.the pictures showed clearly how the snowman walked on two legs.

4.Which is the best title for the passage?

A.Snow B.Monkey C.The Large Footsteps D.A Big Bear