Составить краткий пересказ ( 6 предложений) на .
the great barrier reef
australia's natural treasure
welcome to australia's great barrier reef! the 2,000- kilometre long reef is the largest coral reef system in the world - it is so big that it can be seen from space!
like many other coral reefs in the world, the great barrier reef is in danger. the numbers of fish and other creatures that live here have fallen drastically in recent years because of pollution. we need your help to protect this unique ecosystem.
help us protect the water
the sea around the reefs has been seriously harmed over the years, but you can help reverse this. don't throw rubbish into the sea as it may contain chemicals that will pollute the water. rubbish might also float to the surface, which isn't pretty for anyone to look at! help us to keep the water crystal clear so that it can be enjoyed by everyone.
help us protect the coral
remember that the reef is very much a living organism! it has been formed over thousands of years by the action of tiny creatures called coral polyps. we have to protect these creatures if the reef is to survive. if you are camping on a beach, please be careful what you do with any waste water. washing-up liquid and bleach can be fatal to coral. if anyone offers to sell you a piece of coral, don't buy it. if you see coral for sale in a shop, tell the authorities immediately.
help us protect the wildlife
the reef is home to 1,500 species of tropical fish, over 200 types of bird and 20 species of reptile, including the endangered green sea turtle. it is also a breeding ground for humpback whales from the antarctic. remember - all these creatures depend on the reef for their survival. please never fish for anything! many species of fish are in danger of extinction and therefore protected by law. the same goes for shellfish and other creatures. they may look beautiful, but remember the reef is their home. how would you feel if someone picked you up and took you far away from your home?
please help us to conserve australia's natural treasure so that it can be enjoyed for generations to come!