the Children's Cancer Fund.

38. As for the Children's Cancer Foundation, which of the following statements is NOT true?

A. It is made up of volunteers, including doctors, nurses, psychologists and so on.

B. It can help the children with cancer in many ways.

C. It has made achievements in helping the children with cancer.

D. It has set up a lot of hospitals in Hong Kong for the children with cancer.

39. We can know from the text that__________.

A. those who work for the Children's Cancer Foundation are not paid.

B. the Children's Cancer Foundation gets its money from the parents of the children with cancer.

C. only doctors and nurses are wanted to help the children with cancer.

D. every child can get help from the Children's Cancer Foundation.

40. According to the text, we know the Children's Foundation is ________.

　　A. an organization B. a government C. an official D. a department

　　　　　　　　　　　　　　　 B

　　The first breath-taking pictures of the Earth taken from space showed it as solid ball covered by brown land masses and blue-green oceans. We had never seen the Earth from that distance before. To us, it appeared as if the Earth had always looked that way and always would. However, scientists now know the surface of the Earth is not as permanent as we had thought.

Scientists explain the surface of our planet is always moving. Continents moves about the Earth like huge ships at sea. They float on pieces of the Earth's outer skin. New outer skin is created as melted rock pushed up from below the ocean floor. Old outer skin is destroyed as it rolls down into the hot area and melts again.

Only since the 1960s have scientists begun to understand the planet Earth is a great living machine. Some experts have said this new understanding is one of the most important revolutions in scientific thought. The revolution is based on the work of scientists who study the movement of the continents------a science called plate tectonics.

The modern story of plate tectonics begins with the German scientist Alfred Wegner. Before World War One, Wegner argued that the continents had moved and were still moving. He said that the idea first occurred to him when he observed the coastlines of South America and Africa could fit together like two pieces of a puzzle. He proposed that the two continents might have been one and then split apart.

Wegener wasn't the first person to wonder about the shape of the continent. About 500 years ago, explorers thought about it when they made the first maps of Americas. The explorers noted the east coast of North America and South America would fit almost exactly into the west coast of Europe and South Africa. What the explorers did not do, but Wegener did, was to investigate the idea that the continents move.

41. What does the writer mainly tell us the passage?

A. The first breath-taking pictures of the Earth taken from space.