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Test One-Section Four

Section 4 You'll hear a lecture about the Great Barrier Reef. First you have some time to look at questions 31-33.

Now listen carefully and answer questions 31-33.

Despite of its name, the Great Barrier Reef isn't just one large coral reef.

Rather, it's a system of coral reef that stretches along the east coast of Australia, covering an area of around 300,000 square kilometers.

The Great Barrier Reef is composed of approximately 3000 individual reefs which range in size from one hectare to more than 10,000 hectares each.

In addition, around 600 islands are scattered throughout the area, particularly at the northern and southern ends.

The reefs themselves are composed of over 400 different kinds of coral, the largest variety of coral found anywhere in the world.

Now, listen carefully and answer questions 34-40.

Thousands of species of sea animals live in and around the reefs.

All together, approximately 1500 species of fish inhabit the reef area, including a number of different kinds of sharks.

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