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课件网) Unit 5 A Delicate World Macquarie Island: from chaos to conservation Animals in the pictures birds penguins What is the relationship between the animals and the island They are native inhabitants or they are native to the island. UNESCO World Heritage Site Read para 1 and find out the basic information location: shape: title: ecology: the south-west pacific ocean long and thin shape Macquarie Island: from Chaos to Conservation UNESCO World Heritage Site native inhabitants existed in perfect harmony 1810 1891 1970s 1980s 2000 2006 What did humans do Why did they do it How did it end 2014 actions purposes results Read para 2 Macquarie Island arrived brought unknowingly took over ate birds' eggs attacked baby birds developed an appetite for the birds were brought to control Read para 3 and connect the pictures Macquarie Island introduced as a source of food multiplied ate vegetation dug holes provided food the number increased hunted birds parakeets died out Read para 4 and draw a mind map released a virus to remove decreased to 10,000 less food killed more birds used to catch The last cat was caught in 2000. Read para 5 and draw a mind map increased developed an immunity exploded again dug holes Macquarie Island land collapsed a substantial number of penguins were killed Read para 6 How do they solve the problem 1. The first step involved poison being dropped from helicopters. 2. The next step is to remove the last remaining invading species by using the trained dogs “This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.” 1810 1891 1970s 1980s 2000 2006 chaos conservation 2014 204 years Who are the invading species Organise information from the passage and complete the flow chart. eating the birds’ eggs and attacking baby birds they took over the island, Cats were brought to the island. in 1810 The cats developed an appetite for the birds. Rabbits were introduced to the island. To provide food for humans. more rabbits meant more cats More cats hunted the birds and parakeets died out. A virus was released onto the island. Traps and dogs were used. Poison and dogs were used. To remove all the rabbits from the island. To catch the cats. To remove all the remaining invading species. The island is pest-free and its ecology is on the road to recovery. Substantial reduction of rabbit population led to cats killing more native birds. The population of rats and mice increased. in 1970s in 1980s in 2000 The rabbit population exploded once again. Choose the author’s purpose in writing the passage . 1. To analyse how Macquarie Island was saved from destruction. 2. To inform readers of the chaos caused on Macquarie Island by humans. 3. To entertain readers with a funny story about what happened on Macquarie Island. 4. To suggest ways in which an ecosystem can be protected. Think and share What lessons do you learn ※ Avoi ... ...
